*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
posix_acl_release(acl);
} else
inode->i_mode &= ~current->fs->umask;
-
+
JFS_IP(inode)->mode2 = (JFS_IP(inode)->mode2 & 0xffff0000) |
inode->i_mode;
/*
- * Copyright (c) International Business Machines Corp., 2001
+ * Copyright (C) International Business Machines Corp., 2001
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
.aio_read = generic_file_aio_read,
.aio_write = generic_file_aio_write,
.mmap = generic_file_mmap,
- .sendfile = generic_file_sendfile,
+ .sendfile = generic_file_sendfile,
.fsync = jfs_fsync,
.release = jfs_release,
.ioctl = jfs_ioctl,
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
void jfs_read_inode(struct inode *inode)
{
- if (diRead(inode)) {
+ if (diRead(inode)) {
make_bad_inode(inode);
return;
}
/*
- * Copyright (c) International Business Machines Corp., 2002
+ * Copyright (C) International Business Machines Corp., 2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_ACL
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_BTREE
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
- * Copyright (c) International Business Machines Corp., 2000-2001
+ * Copyright (C) International Business Machines Corp., 2000-2001
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_DINODE
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
*
* the working state of the block allocation map is accessed in
* two directions:
- *
+ *
* 1) allocation and free requests that start at the dmap
* level and move up through the dmap control pages (i.e.
* the vast majority of requests).
- *
- * 2) allocation requests that start at dmap control page
+ *
+ * 2) allocation requests that start at dmap control page
* level and work down towards the dmaps.
- *
- * the serialization scheme used here is as follows.
*
- * requests which start at the bottom are serialized against each
- * other through buffers and each requests holds onto its buffers
- * as it works it way up from a single dmap to the required level
+ * the serialization scheme used here is as follows.
+ *
+ * requests which start at the bottom are serialized against each
+ * other through buffers and each requests holds onto its buffers
+ * as it works it way up from a single dmap to the required level
* of dmap control page.
* requests that start at the top are serialized against each other
* and request that start from the bottom by the multiple read/single
* write inode lock of the bmap inode. requests starting at the top
* take this lock in write mode while request starting at the bottom
* take the lock in read mode. a single top-down request may proceed
- * exclusively while multiple bottoms-up requests may proceed
- * simultaneously (under the protection of busy buffers).
- *
+ * exclusively while multiple bottoms-up requests may proceed
+ * simultaneously (under the protection of busy buffers).
+ *
* in addition to information found in dmaps and dmap control pages,
* the working state of the block allocation map also includes read/
* write information maintained in the bmap descriptor (i.e. total
* a single exclusive lock (BMAP_LOCK) is used to guard this information
* in the face of multiple-bottoms up requests.
* (lock ordering: IREAD_LOCK, BMAP_LOCK);
- *
+ *
* accesses to the persistent state of the block allocation map (limited
* to the persistent bitmaps in dmaps) is guarded by (busy) buffers.
*/
/*
* buddy table
*
- * table used for determining buddy sizes within characters of
+ * table used for determining buddy sizes within characters of
* dmap bitmap words. the characters themselves serve as indexes
* into the table, with the table elements yielding the maximum
* binary buddy of free bits within the character.
/*
- * NAME: dbMount()
+ * NAME: dbMount()
*
* FUNCTION: initializate the block allocation map.
*
/*
- * NAME: dbUnmount()
+ * NAME: dbUnmount()
*
* FUNCTION: terminate the block allocation map in preparation for
* file system unmount.
*
- * the in-core bmap descriptor is written to disk and
+ * the in-core bmap descriptor is written to disk and
* the memory for this descriptor is freed.
*
* PARAMETERS:
/*
- * NAME: dbFree()
+ * NAME: dbFree()
*
* FUNCTION: free the specified block range from the working block
* allocation map.
*
* FUNCTION: update the allocation state (free or allocate) of the
* specified block range in the persistent block allocation map.
- *
+ *
* the blocks will be updated in the persistent map one
* dmap at a time.
*
/* update the bits of the dmap words. the first and last
* words may only have a subset of their bits updated. if
* this is the case, we'll work against that word (i.e.
- * partial first and/or last) only in a single pass. a
+ * partial first and/or last) only in a single pass. a
* single pass will also be used to update all words that
* are to have all their bits updated.
*/
* the block allocation policy uses hints and a multi-step
* approach.
*
- * for allocation requests smaller than the number of blocks
+ * for allocation requests smaller than the number of blocks
* per dmap, we first try to allocate the new blocks
* immediately following the hint. if these blocks are not
* available, we try to allocate blocks near the hint. if
- * no blocks near the hint are available, we next try to
+ * no blocks near the hint are available, we next try to
* allocate within the same dmap as contains the hint.
*
* if no blocks are available in the dmap or the allocation
#endif /* _STILL_TO_PORT */
/* get the log2 number of blocks to be allocated.
- * if the number of blocks is not a log2 multiple,
+ * if the number of blocks is not a log2 multiple,
* it will be rounded up to the next log2 multiple.
*/
l2nb = BLKSTOL2(nblocks);
* validate extent request:
*
* note: defragfs policy:
- * max 64 blocks will be moved.
+ * max 64 blocks will be moved.
* allocation request size must be satisfied from a single dmap.
*/
if (nblocks <= 0 || nblocks > BPERDMAP || blkno >= bmp->db_mapsize) {
* or two sub-trees, depending on the allocation group size.
* we search the top nodes of these subtrees left to right for
* sufficient free space. if sufficient free space is found,
- * the subtree is searched to find the leftmost leaf that
+ * the subtree is searched to find the leftmost leaf that
* has free space. once we have made it to the leaf, we
* move the search to the next lower level dmap control page
* corresponding to this leaf. we continue down the dmap control
* that fully describes the allocation group since the allocation
* group is already fully described by a dmap. in this case, we
* just call dbAllocCtl() to search the dmap tree and allocate the
- * required space if available.
+ * required space if available.
*
* if the allocation group is completely free, dbAllocCtl() is
* also called to allocate the required space. this is done for
(1 << (L2LPERCTL - (bmp->db_agheigth << 1))) / bmp->db_agwidth;
ti = bmp->db_agstart + bmp->db_agwidth * (agno & (agperlev - 1));
- /* dmap control page trees fan-out by 4 and a single allocation
+ /* dmap control page trees fan-out by 4 and a single allocation
* group may be described by 1 or 2 subtrees within the ag level
* dmap control page, depending upon the ag size. examine the ag's
* subtrees for sufficient free space, starting with the leftmost
/* starting at the specified dmap control page level and block
* number, search down the dmap control levels for the starting
- * block number of a dmap page that contains or starts off
+ * block number of a dmap page that contains or starts off
* sufficient free blocks.
*/
for (lev = level, b = *blkno; lev >= 0; lev--) {
}
/* adjust the block number to reflect the location within
- * the dmap control page (i.e. the leaf) at which free
+ * the dmap control page (i.e. the leaf) at which free
* space was found.
*/
b += (((s64) leafidx) << budmin);
* NAME: dbAllocCtl()
*
* FUNCTION: attempt to allocate a specified number of contiguous
- * blocks starting within a specific dmap.
- *
+ * blocks starting within a specific dmap.
+ *
* this routine is called by higher level routines that search
* the dmap control pages above the actual dmaps for contiguous
* free space. the result of successful searches by these
- * routines are the starting block numbers within dmaps, with
+ * routines are the starting block numbers within dmaps, with
* the dmaps themselves containing the desired contiguous free
* space or starting a contiguous free space of desired size
* that is made up of the blocks of one or more dmaps. these
*
* FUNCTION: attempt to allocate a specified number of contiguous blocks
* from a specified dmap.
- *
+ *
* this routine checks if the contiguous blocks are available.
* if so, nblocks of blocks are allocated; otherwise, ENOSPC is
* returned.
*
* PARAMETERS:
* mp - pointer to bmap descriptor
- * dp - pointer to dmap to attempt to allocate blocks from.
+ * dp - pointer to dmap to attempt to allocate blocks from.
* l2nb - log2 number of contiguous block desired.
* nblocks - actual number of contiguous block desired.
* results - on successful return, set to the starting block number
* -ENOSPC - insufficient disk resources
* -EIO - i/o error
*
- * serialization: IREAD_LOCK(ipbmap), e.g., from dbAlloc(), or
+ * serialization: IREAD_LOCK(ipbmap), e.g., from dbAlloc(), or
* IWRITE_LOCK(ipbmap), e.g., dbAllocCtl(), held on entry/exit;
*/
static int
/* root changed. bubble the change up to the dmap control pages.
* if the adjustment of the upper level control pages fails,
- * backout the deallocation.
+ * backout the deallocation.
*/
if ((rc = dbAdjCtl(bmp, blkno, dp->tree.stree[ROOT], 0, 0))) {
word = (blkno & (BPERDMAP - 1)) >> L2DBWORD;
* words (i.e. partial first and/or last) on an individual basis
* (a single pass), freeing the bits of interest by hand and updating
* the leaf corresponding to the dmap word. a single pass will be used
- * for all dmap words fully contained within the specified range.
+ * for all dmap words fully contained within the specified range.
* within this pass, the bits of all fully contained dmap words will
* be marked as free in a single shot and the leaves will be updated. a
* single leaf may describe the free space of multiple dmap words,
*/
if (nb < DBWORD) {
/* free (zero) the appropriate bits within this
- * dmap word.
+ * dmap word.
*/
dp->wmap[word] &=
cpu_to_le32(~(ONES << (DBWORD - nb)
BMAP_LOCK(bmp);
- /* update the free count for the allocation group and
+ /* update the free count for the allocation group and
* map.
*/
agno = blkno >> bmp->db_agl2size;
* or deallocation resulted in the root change. this range
* is respresented by a single leaf of the current dmapctl
* and the leaf will be updated with this value, possibly
- * causing a binary buddy system within the leaves to be
+ * causing a binary buddy system within the leaves to be
* split or joined. the update may also cause the dmapctl's
* dmtree to be updated.
*
}
}
- /* adjust the dmap tree to reflect the specified leaf's new
+ /* adjust the dmap tree to reflect the specified leaf's new
* value.
*/
dbAdjTree(tp, leafno, newval);
/* the back split is accomplished by iteratively finding the leaf
* that starts the buddy system that contains the specified leaf and
* splitting that system in two. this iteration continues until
- * the specified leaf becomes the start of a buddy system.
+ * the specified leaf becomes the start of a buddy system.
*
* determine maximum possible l2 size for the specified leaf.
*/
* NAME: dbFindLeaf()
*
* FUNCTION: search a dmtree_t for sufficient free blocks, returning
- * the index of a leaf describing the free blocks if
+ * the index of a leaf describing the free blocks if
* sufficient free blocks are found.
*
* the search starts at the top of the dmtree_t tree and
*
* RETURN VALUES:
* 0 - success
- * -ENOSPC - insufficient free blocks.
+ * -ENOSPC - insufficient free blocks.
*/
static int dbFindLeaf(dmtree_t * tp, int l2nb, int *leafidx)
{
/*
- * NAME: dbAllocBottomUp()
+ * NAME: dbAllocBottomUp()
*
* FUNCTION: alloc the specified block range from the working block
* allocation map.
BMAP_LOCK(bmp);
/* if this allocation group is completely free,
- * update the highest active allocation group number
+ * update the highest active allocation group number
* if this allocation group is the new max.
*/
agno = blkno >> bmp->db_agl2size;
* NAME: dbExtendFS()
*
* FUNCTION: extend bmap from blkno for nblocks;
- * dbExtendFS() updates bmap ready for dbAllocBottomUp();
+ * dbExtendFS() updates bmap ready for dbAllocBottomUp();
*
* L2
* |
* d0,...,dn d0,...,dn d0,...,dn d0,...,dn d0,...,dn d0,.,dm;
* L2L1L0d0,...,dnL0d0,...,dnL0d0,...,dnL1L0d0,...,dnL0d0,...,dnL0d0,..dm
*
- * <---old---><----------------------------extend----------------------->
+ * <---old---><----------------------------extend----------------------->
*/
int dbExtendFS(struct inode *ipbmap, s64 blkno, s64 nblocks)
{
bmp->db_numag += ((u32) newsize % (u32) bmp->db_agsize) ? 1 : 0;
/*
- * reconfigure db_agfree[]
+ * reconfigure db_agfree[]
* from old AG configuration to new AG configuration;
*
* coalesce contiguous k (newAGSize/oldAGSize) AGs;
} /* for each dmap in a L0 */
/*
- * build current L0 page from its leaves, and
+ * build current L0 page from its leaves, and
* initialize corresponding parent L1 leaf
*/
*l1leaf = dbInitDmapCtl(l0dcp, 0, ++i);
} /* for each L0 in a L1 */
/*
- * build current L1 page from its leaves, and
+ * build current L1 page from its leaves, and
* initialize corresponding parent L2 leaf
*/
*l2leaf = dbInitDmapCtl(l1dcp, 1, ++j);
* finalize bmap control page
*/
//finalize:
- /*
+ /*
* compute db_agpref: preferred ag to allocate from
* (the leftmost ag with average free space in it);
*/
/*
* compute db_aglevel, db_agheigth, db_width, db_agstart:
- * an ag is covered in aglevel dmapctl summary tree,
- * at agheight level height (from leaf) with agwidth number of nodes
- * each, which starts at agstart index node of the smmary tree node
+ * an ag is covered in aglevel dmapctl summary tree,
+ * at agheight level height (from leaf) with agwidth number of nodes
+ * each, which starts at agstart index node of the smmary tree node
* array;
*/
bmp->db_aglevel = BMAPSZTOLEV(bmp->db_agsize);
/*
* NAME: dbInitDmap()/ujfs_idmap_page()
- *
+ *
* FUNCTION: initialize working/persistent bitmap of the dmap page
* for the specified number of blocks:
- *
+ *
* at entry, the bitmaps had been initialized as free (ZEROS);
- * The number of blocks will only account for the actually
- * existing blocks. Blocks which don't actually exist in
+ * The number of blocks will only account for the actually
+ * existing blocks. Blocks which don't actually exist in
* the aggregate will be marked as allocated (ONES);
*
* PARAMETERS:
/*
* free the bits corresponding to the block range (ZEROS):
- * note: not all bits of the first and last words may be contained
+ * note: not all bits of the first and last words may be contained
* within the block range.
*/
for (r = nblocks; r > 0; r -= nb, blkno += nb) {
}
/*
- * mark bits following the range to be freed (non-existing
+ * mark bits following the range to be freed (non-existing
* blocks) as allocated (ONES)
*/
/*
* NAME: dbInitDmapTree()/ujfs_complete_dmap()
- *
+ *
* FUNCTION: initialize summary tree of the specified dmap:
*
* at entry, bitmap of the dmap has been initialized;
- *
+ *
* PARAMETERS:
* dp - dmap to complete
* blkno - starting block number for this dmap
/* init each leaf from corresponding wmap word:
* note: leaf is set to NOFREE(-1) if all blocks of corresponding
- * bitmap word are allocated.
+ * bitmap word are allocated.
*/
cp = tp->stree + le32_to_cpu(tp->leafidx);
for (i = 0; i < LPERDMAP; i++)
/*
* NAME: dbInitTree()/ujfs_adjtree()
- *
+ *
* FUNCTION: initialize binary buddy summary tree of a dmap or dmapctl.
*
- * at entry, the leaves of the tree has been initialized
+ * at entry, the leaves of the tree has been initialized
* from corresponding bitmap word or root of summary tree
* of the child control page;
* configure binary buddy system at the leaf level, then
/*
* configure the leaf levevl into binary buddy system
*
- * Try to combine buddies starting with a buddy size of 1
- * (i.e. two leaves). At a buddy size of 1 two buddy leaves
- * can be combined if both buddies have a maximum free of l2min;
- * the combination will result in the left-most buddy leaf having
- * a maximum free of l2min+1.
- * After processing all buddies for a given size, process buddies
- * at the next higher buddy size (i.e. current size * 2) and
- * the next maximum free (current free + 1).
- * This continues until the maximum possible buddy combination
+ * Try to combine buddies starting with a buddy size of 1
+ * (i.e. two leaves). At a buddy size of 1 two buddy leaves
+ * can be combined if both buddies have a maximum free of l2min;
+ * the combination will result in the left-most buddy leaf having
+ * a maximum free of l2min+1.
+ * After processing all buddies for a given size, process buddies
+ * at the next higher buddy size (i.e. current size * 2) and
+ * the next maximum free (current free + 1).
+ * This continues until the maximum possible buddy combination
* yields maximum free.
*/
for (l2free = dtp->budmin, bsize = 1; l2free < l2max;
* bubble summary information of leaves up the tree.
*
* Starting at the leaf node level, the four nodes described by
- * the higher level parent node are compared for a maximum free and
- * this maximum becomes the value of the parent node.
- * when all lower level nodes are processed in this fashion then
- * move up to the next level (parent becomes a lower level node) and
+ * the higher level parent node are compared for a maximum free and
+ * this maximum becomes the value of the parent node.
+ * when all lower level nodes are processed in this fashion then
+ * move up to the next level (parent becomes a lower level node) and
* continue the process for that level.
*/
for (child = le32_to_cpu(dtp->leafidx),
/* get index of 1st node of parent level */
parent = (child - 1) >> 2;
- /* set the value of the parent node as the maximum
+ /* set the value of the parent node as the maximum
* of the four nodes of the current level.
*/
for (i = 0, cp = tp + child, cp1 = tp + parent;
dcp->budmin = L2BPERDMAP + L2LPERCTL * level;
/*
- * initialize the leaves of current level that were not covered
- * by the specified input block range (i.e. the leaves have no
+ * initialize the leaves of current level that were not covered
+ * by the specified input block range (i.e. the leaves have no
* low level dmapctl or dmap).
*/
cp = &dcp->stree[CTLLEAFIND + i];
/*
* NAME: dbGetL2AGSize()/ujfs_getagl2size()
- *
+ *
* FUNCTION: Determine log2(allocation group size) from aggregate size
- *
+ *
* PARAMETERS:
* nblocks - Number of blocks in aggregate
*
/*
* NAME: dbMapFileSizeToMapSize()
- *
- * FUNCTION: compute number of blocks the block allocation map file
+ *
+ * FUNCTION: compute number of blocks the block allocation map file
* can cover from the map file size;
*
* RETURNS: Number of blocks which can be covered by this block map file;
npages = nblocks >> JFS_SBI(sb)->l2nbperpage;
level = BMAPPGTOLEV(npages);
- /* At each level, accumulate the number of dmap pages covered by
+ /* At each level, accumulate the number of dmap pages covered by
* the number of full child levels below it;
* repeat for the last incomplete child level.
*/
npages--;
}
- /* convert the number of dmaps into the number of blocks
+ /* convert the number of dmaps into the number of blocks
* which can be covered by the dmaps;
*/
nblocks = ndmaps << L2BPERDMAP;
/*
- * Copyright (c) International Business Machines Corp., 2000-2002
+ * Copyright (C) International Business Machines Corp., 2000-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_DMAP
#define L2LPERDMAP 8 /* l2 number of leaves per dmap tree */
#define DBWORD 32 /* # of blks covered by a map word */
#define L2DBWORD 5 /* l2 # of blks covered by a mword */
-#define BUDMIN L2DBWORD /* max free string in a map word */
+#define BUDMIN L2DBWORD /* max free string in a map word */
#define BPERDMAP (LPERDMAP * DBWORD) /* num of blks per dmap */
#define L2BPERDMAP 13 /* l2 num of blks per dmap */
#define CTLTREESIZE (1024+256+64+16+4+1) /* size of a dmapctl tree */
#define MAXMAPSIZE MAXL2SIZE /* maximum aggregate map size */
-/*
+/*
* determine the maximum free string for four (lower level) nodes
* of the tree.
*/
#define BLKTOCTL(b,s,l) \
(((l) == 2) ? 1 : ((l) == 1) ? BLKTOL1((b),(s)) : BLKTOL0((b),(s)))
-/*
+/*
* convert aggregate map size to the zero origin dmapctl level of the
* top dmapctl.
*/
/* macros for accessing fields within dmtree */
#define dmt_nleafs t1.nleafs
-#define dmt_l2nleafs t1.l2nleafs
-#define dmt_leafidx t1.leafidx
-#define dmt_height t1.height
-#define dmt_budmin t1.budmin
-#define dmt_stree t1.stree
+#define dmt_l2nleafs t1.l2nleafs
+#define dmt_leafidx t1.leafidx
+#define dmt_height t1.height
+#define dmt_budmin t1.budmin
+#define dmt_stree t1.stree
-/*
+/*
* on-disk aggregate disk allocation map descriptor.
*/
struct dbmap_disk {
s64 dn_agsize; /* num of blks per alloc group */
signed char dn_maxfreebud; /* max free buddy system */
}; /* - 4096 - */
-/*
+/*
* in-memory aggregate disk allocation map descriptor.
*/
struct bmap {
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
*
* case-insensitive search:
*
- * fold search key;
+ * fold search key;
*
* case-insensitive search of B-tree:
* for internal entry, router key is already folded;
* else
* return no match;
*
- * serialization:
+ * serialization:
* target directory inode lock is being held on entry/exit
* of all main directory service routines.
*
*
* return: 0 - success;
* errno - failure;
- * leaf page unpinned;
+ * leaf page unpinned;
*/
static int dtSplitUp(tid_t tid,
struct inode *ip, struct dtsplit * split, struct btstack * btstack)
* across page boundary
*
* return: non-zero on error
- *
+ *
*/
static int ciGetLeafPrefixKey(dtpage_t * lp, int li, dtpage_t * rp,
int ri, struct component_name * key, int flag)
/*
- * Copyright (c) International Business Machines Corp., 2000-2002
+ * Copyright (C) International Business Machines Corp., 2000-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_DTREE
/*
* leaf node entry head/only segment
*
- * For legacy filesystems, name contains 13 wchars -- no index field
+ * For legacy filesystems, name contains 13 wchars -- no index field
*/
struct ldtentry {
__le32 inumber; /* 4: 4-byte aligned */
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
}
/* allocate the disk blocks for the extent. initially, extBalloc()
- * will try to allocate disk blocks for the requested size (xlen).
+ * will try to allocate disk blocks for the requested size (xlen).
* if this fails (xlen contiguous free blocks not avaliable), it'll
* try to allocate a smaller number of blocks (producing a smaller
* extent), with this smaller number of blocks consisting of the
/* determine the value of the extent flag */
xflag = abnr ? XAD_NOTRECORDED : 0;
- /* if we can extend the hint extent to cover the current request,
+ /* if we can extend the hint extent to cover the current request,
* extend it. otherwise, insert a new extent to
* cover the current request.
*/
else
rc = xtInsert(0, ip, xflag, xoff, (int) nxlen, &nxaddr, 0);
- /* if the extend or insert failed,
+ /* if the extend or insert failed,
* free the newly allocated blocks and return the error.
*/
if (rc) {
xoff = offsetXAD(xp);
/* if the extend page is abnr and if the request is for
- * the extent to be allocated and recorded,
+ * the extent to be allocated and recorded,
* make the page allocated and recorded.
*/
if ((xp->flag & XAD_NOTRECORDED) && !abnr) {
if ((rc = xtLookupList(ip, &lxdl, &xadl, 0)))
return (rc);
- /* check if not extent exists for the previous page.
+ /* check if not extent exists for the previous page.
* this is possible for sparse files.
*/
if (xadl.nxad == 0) {
*/
xp->flag &= XAD_NOTRECORDED;
- if(xadl.nxad != 1 || lengthXAD(xp) != nbperpage) {
+ if(xadl.nxad != 1 || lengthXAD(xp) != nbperpage) {
jfs_error(ip->i_sb, "extHint: corrupt xtree");
return -EIO;
}
* FUNCTION: allocate disk blocks to form an extent.
*
* initially, we will try to allocate disk blocks for the
- * requested size (nblocks). if this fails (nblocks
+ * requested size (nblocks). if this fails (nblocks
* contiguous free blocks not avaliable), we'll try to allocate
* a smaller number of blocks (producing a smaller extent), with
* this smaller number of blocks consisting of the requested
* number (i.e. 16 -> 8). we'll continue to round down and
* retry the allocation until the number of blocks to allocate
* is smaller than the number of blocks per page.
- *
+ *
* PARAMETERS:
* ip - the inode of the file.
* hint - disk block number to be used as an allocation hint.
* exit, this value is set to the number of blocks actually
* allocated.
* blkno - pointer to a block address that is filled in on successful
- * return with the starting block number of the newly
+ * return with the starting block number of the newly
* allocated block range.
*
* RETURN VALUES:
/* get the number of blocks to initially attempt to allocate.
* we'll first try the number of blocks requested unless this
* number is greater than the maximum number of contiguous free
- * blocks in the map. in that case, we'll start off with the
+ * blocks in the map. in that case, we'll start off with the
* maximum free.
*/
max = (s64) 1 << bmp->db_maxfreebud;
*
* FUNCTION: attempt to extend an extent's allocation.
*
- * initially, we will try to extend the extent's allocation
- * in place. if this fails, we'll try to move the extent
- * to a new set of blocks. if moving the extent, we initially
+ * Initially, we will try to extend the extent's allocation
+ * in place. If this fails, we'll try to move the extent
+ * to a new set of blocks. If moving the extent, we initially
* will try to allocate disk blocks for the requested size
- * (nnew). if this fails (new contiguous free blocks not
- * avaliable), we'll try to allocate a smaller number of
+ * (newnblks). if this fails (new contiguous free blocks not
+ * avaliable), we'll try to allocate a smaller number of
* blocks (producing a smaller extent), with this smaller
* number of blocks consisting of the requested number of
* blocks rounded down to the next smaller power of 2
- * number (i.e. 16 -> 8). we'll continue to round down and
+ * number (i.e. 16 -> 8). We'll continue to round down and
* retry the allocation until the number of blocks to allocate
* is smaller than the number of blocks per page.
- *
+ *
* PARAMETERS:
* ip - the inode of the file.
* blkno - starting block number of the extents current allocation.
return (rc);
}
- /* in place extension not possible.
+ /* in place extension not possible.
* try to move the extent to a new set of blocks.
*/
return (extBalloc(ip, blkno, newnblks, newblkno));
/*
- * Copyright (c) International Business Machines Corp., 2000-2001
+ * Copyright (C) International Business Machines Corp., 2000-2001
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_EXTENT
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_FILSYS
/*
* jfs_filsys.h
*
- * file system (implementation-dependent) constants
+ * file system (implementation-dependent) constants
*
- * refer to <limits.h> for system wide implementation-dependent constants
+ * refer to <limits.h> for system wide implementation-dependent constants
*/
/*
#define JFS_DFS 0x20000000 /* DCE DFS LFS support */
-#define JFS_LINUX 0x10000000 /* Linux support */
+#define JFS_LINUX 0x10000000 /* Linux support */
/* case-sensitive name/directory support */
/* directory option */
#define JFS_COMMIT 0x00000f00 /* commit option mask */
#define JFS_GROUPCOMMIT 0x00000100 /* group (of 1) commit */
#define JFS_LAZYCOMMIT 0x00000200 /* lazy commit */
-#define JFS_TMPFS 0x00000400 /* temporary file system -
+#define JFS_TMPFS 0x00000400 /* temporary file system -
* do not log/commit:
*/
* followed by 1st extent of map
*/
#define AITBL_OFF (AIMAP_OFF + (SIZE_OF_MAP_PAGE << 1))
- /*
+ /*
* 1st extent of aggregate inode table
*/
#define SUPER2_OFF (AITBL_OFF + INODE_EXTENT_SIZE)
*/
#define FM_CLEAN 0x00000000 /* file system is unmounted and clean */
#define FM_MOUNT 0x00000001 /* file system is mounted cleanly */
-#define FM_DIRTY 0x00000002 /* file system was not unmounted and clean
- * when mounted or
+#define FM_DIRTY 0x00000002 /* file system was not unmounted and clean
+ * when mounted or
* commit failure occurred while being mounted:
- * fsck() must be run to repair
+ * fsck() must be run to repair
*/
#define FM_LOGREDO 0x00000004 /* log based recovery (logredo()) failed:
- * fsck() must be run to repair
+ * fsck() must be run to repair
*/
#define FM_EXTENDFS 0x00000008 /* file system extendfs() in progress */
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
* FUNCTION: initialize the incore inode map control structures for
* a fileset or aggregate init time.
*
- * the inode map's control structure (dinomap) is
+ * the inode map's control structure (dinomap) is
* brought in from disk and placed in virtual memory.
*
* PARAMETERS:
* RETURN VALUES:
* 0 - success
* -ENOMEM - insufficient free virtual memory.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
int diMount(struct inode *ipimap)
{
* RETURN VALUES:
* 0 - success
* -ENOMEM - insufficient free virtual memory.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
int diUnmount(struct inode *ipimap, int mounterror)
{
* on entry, the specifed incore inode should itself
* specify the disk inode number corresponding to the
* incore inode (i.e. i_number should be initialized).
- *
+ *
* this routine handles incore inode initialization for
* both "special" and "regular" inodes. special inodes
* are those required early in the mount process and
* is not yet initialized. these "special" inodes are
* identified by a NULL inode map inode pointer and are
* actually initialized by a call to diReadSpecial().
- *
+ *
* for regular inodes, the iag describing the disk inode
* is read from disk to determine the inode extent address
* for the disk inode. with the inode extent address in
*
* RETURN VALUES:
* 0 - success
- * -EIO - i/o error.
+ * -EIO - i/o error.
* -ENOMEM - insufficient memory
- *
+ *
*/
int diRead(struct inode *ip)
{
* page of the extent that contains the disk inode is
* read and the disk inode portion of the incore inode
* is copied to the disk inode.
- *
+ *
* PARAMETERS:
* tid - transacation id
* ip - pointer to incore inode to be written to the inode extent.
*
* RETURN VALUES:
* 0 - success
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
int diWrite(tid_t tid, struct inode *ip)
{
* copy btree root from in-memory inode to on-disk inode
*
* (tlock is taken from inline B+-tree root in in-memory
- * inode when the B+-tree root is updated, which is pointed
+ * inode when the B+-tree root is updated, which is pointed
* by jfs_ip->blid as well as being on tx tlock list)
*
- * further processing of btree root is based on the copy
- * in in-memory inode, where txLog() will log from, and,
+ * further processing of btree root is based on the copy
+ * in in-memory inode, where txLog() will log from, and,
* for xtree root, txUpdateMap() will update map and reset
* XAD_NEW bit;
*/
memcpy(&dp->di_DASD, &ip->i_DASD, sizeof(struct dasd));
#endif /* _JFS_FASTDASD */
- /* release the buffer holding the updated on-disk inode.
+ /* release the buffer holding the updated on-disk inode.
* the buffer will be later written by commit processing.
*/
write_metapage(mp);
* if the inode to be freed represents the first (only)
* free inode within the iag, the iag will be placed on
* the ag free inode list.
- *
+ *
* freeing the inode will cause the inode extent to be
* freed if the inode is the only allocated inode within
* the extent. in this case all the disk resource backing
* any updates and are held until all updates are complete.
*
* PARAMETERS:
- * ip - inode to be freed.
+ * ip - inode to be freed.
*
* RETURN VALUES:
* 0 - success
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
int diFree(struct inode *ip)
{
*/
iagno = INOTOIAG(inum);
- /* make sure that the iag is contained within
+ /* make sure that the iag is contained within
* the map.
*/
if (iagno >= imap->im_nextiag) {
/* update the free inode summary map for the extent if
* freeing the inode means the extent will now have free
- * inodes (i.e., the inode being freed is the first free
+ * inodes (i.e., the inode being freed is the first free
* inode of extent),
*/
if (iagp->wmap[extno] == cpu_to_le32(ONES)) {
iagp->inofreefwd = iagp->inofreeback = cpu_to_le32(-1);
}
- /* update the inode extent address and working map
+ /* update the inode extent address and working map
* to reflect the free extent.
- * the permanent map should have been updated already
+ * the permanent map should have been updated already
* for the inode being freed.
*/
if (iagp->pmap[extno] != 0) {
/* update the free extent and free inode summary maps
* to reflect the freed extent.
- * the inode summary map is marked to indicate no inodes
+ * the inode summary map is marked to indicate no inodes
* available for the freed extent.
*/
sword = extno >> L2EXTSPERSUM;
* start transaction to update block allocation map
* for the inode extent freed;
*
- * N.B. AG_LOCK is released and iag will be released below, and
+ * N.B. AG_LOCK is released and iag will be released below, and
* other thread may allocate inode from/reusing the ixad freed
- * BUT with new/different backing inode extent from the extent
- * to be freed by the transaction;
+ * BUT with new/different backing inode extent from the extent
+ * to be freed by the transaction;
*/
tid = txBegin(ipimap->i_sb, COMMIT_FORCE);
mutex_lock(&JFS_IP(ipimap)->commit_mutex);
- /* acquire tlock of the iag page of the freed ixad
+ /* acquire tlock of the iag page of the freed ixad
* to force the page NOHOMEOK (even though no data is
- * logged from the iag page) until NOREDOPAGE|FREEXTENT log
+ * logged from the iag page) until NOREDOPAGE|FREEXTENT log
* for the free of the extent is committed;
* write FREEXTENT|NOREDOPAGE log record
* N.B. linelock is overlaid as freed extent descriptor;
* logredo needs the IAG number and IAG extent index in order
* to ensure that the IMap is consistent. The least disruptive
* way to pass these values through to the transaction manager
- * is in the iplist array.
- *
+ * is in the iplist array.
+ *
* It's not pretty, but it works.
*/
iplist[1] = (struct inode *) (size_t)iagno;
/*
* NAME: diAlloc(pip,dir,ip)
*
- * FUNCTION: allocate a disk inode from the inode working map
+ * FUNCTION: allocate a disk inode from the inode working map
* for a fileset or aggregate.
*
* PARAMETERS:
- * pip - pointer to incore inode for the parent inode.
- * dir - 'true' if the new disk inode is for a directory.
- * ip - pointer to a new inode
+ * pip - pointer to incore inode for the parent inode.
+ * dir - 'true' if the new disk inode is for a directory.
+ * ip - pointer to a new inode
*
* RETURN VALUES:
* 0 - success.
* -ENOSPC - insufficient disk resources.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
int diAlloc(struct inode *pip, bool dir, struct inode *ip)
{
JFS_IP(ip)->ipimap = ipimap;
JFS_IP(ip)->fileset = FILESYSTEM_I;
- /* for a directory, the allocation policy is to start
+ /* for a directory, the allocation policy is to start
* at the ag level using the preferred ag.
*/
if (dir) {
/*
* try to allocate from the IAG
*/
- /* check if the inode may be allocated from the iag
+ /* check if the inode may be allocated from the iag
* (i.e. the inode has free inodes or new extent can be added).
*/
if (iagp->nfreeinos || addext) {
* hint or, if appropriate (i.e. addext is true), allocate
* an extent of free inodes at or following the extent
* containing the hint.
- *
+ *
* the free inode and free extent summary maps are used
* here, so determine the starting summary map position
* and the number of words we'll have to examine. again,
* inodes should be added for the allocation group, with
* the current request satisfied from this extent. if this
* is the case, an attempt will be made to do just that. if
- * this attempt fails or it has been determined that a new
+ * this attempt fails or it has been determined that a new
* extent should not be added, an attempt is made to satisfy
* the request by allocating an existing (backed) free inode
* from the allocation group.
* PRE CONDITION: Already have the AG lock for this AG.
*
* PARAMETERS:
- * imap - pointer to inode map control structure.
- * agno - allocation group to allocate from.
- * dir - 'true' if the new disk inode is for a directory.
- * ip - pointer to the new inode to be filled in on successful return
+ * imap - pointer to inode map control structure.
+ * agno - allocation group to allocate from.
+ * dir - 'true' if the new disk inode is for a directory.
+ * ip - pointer to the new inode to be filled in on successful return
* with the disk inode number allocated, its extent address
* and the start of the ag.
*
* RETURN VALUES:
* 0 - success.
* -ENOSPC - insufficient disk resources.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
static int
diAllocAG(struct inomap * imap, int agno, bool dir, struct inode *ip)
{
int rc, addext, numfree, numinos;
- /* get the number of free and the number of backed disk
+ /* get the number of free and the number of backed disk
* inodes currently within the ag.
*/
numfree = imap->im_agctl[agno].numfree;
* specified primary group.
*
* PARAMETERS:
- * imap - pointer to inode map control structure.
- * agno - primary allocation group (to avoid).
- * dir - 'true' if the new disk inode is for a directory.
- * ip - pointer to a new inode to be filled in on successful return
+ * imap - pointer to inode map control structure.
+ * agno - primary allocation group (to avoid).
+ * dir - 'true' if the new disk inode is for a directory.
+ * ip - pointer to a new inode to be filled in on successful return
* with the disk inode number allocated, its extent address
* and the start of the ag.
*
* RETURN VALUES:
* 0 - success.
* -ENOSPC - insufficient disk resources.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
static int
diAllocAny(struct inomap * imap, int agno, bool dir, struct inode *ip)
int maxag = JFS_SBI(imap->im_ipimap->i_sb)->bmap->db_maxag;
- /* try to allocate from the ags following agno up to
+ /* try to allocate from the ags following agno up to
* the maximum ag number.
*/
for (ag = agno + 1; ag <= maxag; ag++) {
*
* allocation occurs from the first iag on the list using
* the iag's free inode summary map to find the leftmost
- * free inode in the iag.
- *
+ * free inode in the iag.
+ *
* PRE CONDITION: Already have AG lock for this AG.
- *
+ *
* PARAMETERS:
- * imap - pointer to inode map control structure.
- * agno - allocation group.
- * ip - pointer to new inode to be filled in on successful return
+ * imap - pointer to inode map control structure.
+ * agno - allocation group.
+ * ip - pointer to new inode to be filled in on successful return
* with the disk inode number allocated, its extent address
* and the start of the ag.
*
* RETURN VALUES:
* 0 - success.
* -ENOSPC - insufficient disk resources.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
static int diAllocIno(struct inomap * imap, int agno, struct inode *ip)
{
return -EIO;
}
- /* compute the inode number within the iag.
+ /* compute the inode number within the iag.
*/
ino = (extno << L2INOSPEREXT) + rem;
/*
* NAME: diAllocExt(imap,agno,ip)
*
- * FUNCTION: add a new extent of free inodes to an iag, allocating
- * an inode from this extent to satisfy the current allocation
- * request.
- *
+ * FUNCTION: add a new extent of free inodes to an iag, allocating
+ * an inode from this extent to satisfy the current allocation
+ * request.
+ *
* this routine first tries to find an existing iag with free
* extents through the ag free extent list. if list is not
* empty, the head of the list will be selected as the home
* of the new extent of free inodes. otherwise (the list is
* empty), a new iag will be allocated for the ag to contain
* the extent.
- *
+ *
* once an iag has been selected, the free extent summary map
* is used to locate a free extent within the iag and diNewExt()
* is called to initialize the extent, with initialization
* for the purpose of satisfying this request.
*
* PARAMETERS:
- * imap - pointer to inode map control structure.
- * agno - allocation group number.
- * ip - pointer to new inode to be filled in on successful return
+ * imap - pointer to inode map control structure.
+ * agno - allocation group number.
+ * ip - pointer to new inode to be filled in on successful return
* with the disk inode number allocated, its extent address
* and the start of the ag.
*
* RETURN VALUES:
* 0 - success.
* -ENOSPC - insufficient disk resources.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
static int diAllocExt(struct inomap * imap, int agno, struct inode *ip)
{
/*
* NAME: diAllocBit(imap,iagp,ino)
*
- * FUNCTION: allocate a backed inode from an iag.
+ * FUNCTION: allocate a backed inode from an iag.
*
* this routine performs the mechanics of allocating a
* specified inode from a backed extent.
* in the face of updates to multiple buffers. under this
* approach, all required buffers are obtained before making
* any updates and are held all are updates are complete.
- *
+ *
* PRE CONDITION: Already have buffer lock on iagp. Already have AG lock on
* this AG. Must have read lock on imap inode.
*
* PARAMETERS:
- * imap - pointer to inode map control structure.
- * iagp - pointer to iag.
- * ino - inode number to be allocated within the iag.
+ * imap - pointer to inode map control structure.
+ * iagp - pointer to iag.
+ * ino - inode number to be allocated within the iag.
*
* RETURN VALUES:
* 0 - success.
* -ENOSPC - insufficient disk resources.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
static int diAllocBit(struct inomap * imap, struct iag * iagp, int ino)
{
* buffers. under this approach, all required buffers are
* obtained before making any updates and are held until all
* updates are complete.
- *
+ *
* PRE CONDITION: Already have buffer lock on iagp. Already have AG lock on
* this AG. Must have read lock on imap inode.
*
* PARAMETERS:
- * imap - pointer to inode map control structure.
- * iagp - pointer to iag.
- * extno - extent number.
+ * imap - pointer to inode map control structure.
+ * iagp - pointer to iag.
+ * extno - extent number.
*
* RETURN VALUES:
* 0 - success.
* -ENOSPC - insufficient disk resources.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
{
/*
* NAME: diNewIAG(imap,iagnop,agno)
*
- * FUNCTION: allocate a new iag for an allocation group.
- *
- * first tries to allocate the iag from the inode map
- * iagfree list:
- * if the list has free iags, the head of the list is removed
+ * FUNCTION: allocate a new iag for an allocation group.
+ *
+ * first tries to allocate the iag from the inode map
+ * iagfree list:
+ * if the list has free iags, the head of the list is removed
* and returned to satisfy the request.
* if the inode map's iag free list is empty, the inode map
* is extended to hold a new iag. this new iag is initialized
* and returned to satisfy the request.
*
* PARAMETERS:
- * imap - pointer to inode map control structure.
- * iagnop - pointer to an iag number set with the number of the
+ * imap - pointer to inode map control structure.
+ * iagnop - pointer to an iag number set with the number of the
* newly allocated iag upon successful return.
- * agno - allocation group number.
+ * agno - allocation group number.
* bpp - Buffer pointer to be filled in with new IAG's buffer
*
* RETURN VALUES:
* 0 - success.
* -ENOSPC - insufficient disk resources.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*
- * serialization:
+ * serialization:
* AG lock held on entry/exit;
* write lock on the map is held inside;
* read lock on the map is held on successful completion;
*
- * note: new iag transaction:
+ * note: new iag transaction:
* . synchronously write iag;
* . write log of xtree and inode of imap;
* . commit;
/* acquire the free iag lock */
IAGFREE_LOCK(imap);
- /* if there are any iags on the inode map free iag list,
+ /* if there are any iags on the inode map free iag list,
* allocate the iag from the head of the list.
*/
if (imap->im_freeiag >= 0) {
flush_metapage(mp);
/*
- * txCommit(COMMIT_FORCE) will synchronously write address
- * index pages and inode after commit in careful update order
+ * txCommit(COMMIT_FORCE) will synchronously write address
+ * index pages and inode after commit in careful update order
* of address index pages (right to left, bottom up);
*/
iplist[0] = ipimap;
*
* FUNCTION: get the buffer for the specified iag within a fileset
* or aggregate inode map.
- *
+ *
* PARAMETERS:
- * imap - pointer to inode map control structure.
- * iagno - iag number.
- * bpp - point to buffer pointer to be filled in on successful
+ * imap - pointer to inode map control structure.
+ * iagno - iag number.
+ * bpp - point to buffer pointer to be filled in on successful
* exit.
*
* SERIALIZATION:
*
* RETURN VALUES:
* 0 - success.
- * -EIO - i/o error.
+ * -EIO - i/o error.
*/
static int diIAGRead(struct inomap * imap, int iagno, struct metapage ** mpp)
{
* the specified bit position.
*
* PARAMETERS:
- * word - word to be examined.
- * start - starting bit position.
+ * word - word to be examined.
+ * start - starting bit position.
*
* RETURN VALUES:
* bit position of first free bit in the word or 32 if
/*
* NAME: diUpdatePMap()
- *
- * FUNCTION: Update the persistent map in an IAG for the allocation or
+ *
+ * FUNCTION: Update the persistent map in an IAG for the allocation or
* freeing of the specified inode.
- *
+ *
* PRE CONDITIONS: Working map has already been updated for allocate.
*
* PARAMETERS:
* is_free - If 'true' indicates inode should be marked freed, otherwise
* indicates inode should be marked allocated.
*
- * RETURN VALUES:
+ * RETURN VALUES:
* 0 for success
*/
int
extno = ino >> L2INOSPEREXT;
bitno = ino & (INOSPEREXT - 1);
mask = HIGHORDER >> bitno;
- /*
+ /*
* mark the inode free in persistent map:
*/
if (is_free) {
* of last reference release;
*/
if (!(le32_to_cpu(iagp->wmap[extno]) & mask)) {
- jfs_error(ipimap->i_sb,
+ jfs_error(ipimap->i_sb,
"diUpdatePMap: inode %ld not marked as "
"allocated in wmap!", inum);
}
* diExtendFS()
*
* function: update imap for extendfs();
- *
- * note: AG size has been increased s.t. each k old contiguous AGs are
+ *
+ * note: AG size has been increased s.t. each k old contiguous AGs are
* coalesced into a new AG;
*/
int diExtendFS(struct inode *ipimap, struct inode *ipbmap)
atomic_read(&imap->im_numfree));
/*
- * reconstruct imap
+ * reconstruct imap
*
* coalesce contiguous k (newAGSize/oldAGSize) AGs;
* i.e., (AGi, ..., AGj) where i = k*n and j = k*(n+1) - 1 to AGn;
}
/* leave free iag in the free iag list */
- if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) {
+ if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) {
release_metapage(bp);
continue;
}
/*
- * Copyright (c) International Business Machines Corp., 2000-2002
+ * Copyright (C) International Business Machines Corp., 2000-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_IMAP
/* get the starting block number of the 4K page of an inode extent
* that contains ino.
*/
-#define INOPBLK(pxd,ino,l2nbperpg) (addressPXD((pxd)) + \
+#define INOPBLK(pxd,ino,l2nbperpg) (addressPXD((pxd)) + \
((((ino) & (INOSPEREXT-1)) >> L2INOSPERPAGE) << (l2nbperpg)))
/*
* inode allocation map:
- *
- * inode allocation map consists of
+ *
+ * inode allocation map consists of
* . the inode map control page and
* . inode allocation group pages (per 4096 inodes)
* which are addressed by standard JFS xtree.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
+ */
#ifndef _H_JFS_INCORE
#define _H_JFS_INCORE
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_INODE
/*
- * Copyright (c) International Business Machines Corp., 2000-2001
- * Portions Copyright (c) Christoph Hellwig, 2001-2002
+ * Copyright (C) International Business Machines Corp., 2000-2001
+ * Portions Copyright (C) Christoph Hellwig, 2001-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_LOCK
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
* PARAMETER: cd - commit descriptor
*
* RETURN: end-of-log address
- *
+ *
* serialization: LOG_LOCK() held on entry/exit
*/
static int
* PARAMETER: log
*
* RETURN: 0
- *
+ *
* serialization: LOG_LOCK() held on entry/exit
*/
static int lmNextPage(struct jfs_log * log)
* page number - redrive pageout of the page at the head of
* pageout queue until full page has been written.
*
- * RETURN:
+ * RETURN:
*
* NOTE:
* LOGGC_LOCK serializes log group commit queue, and
* this code is called again.
*
* PARAMETERS: log - log structure
- * hard_sync - 1 to force all metadata to be written
+ * hard_sync - 1 to force all metadata to be written
*
* RETURN: 0
- *
+ *
* serialization: LOG_LOCK() held on entry/exit
*/
static int lmLogSync(struct jfs_log * log, int hard_sync)
* FUNCTION: write log SYNCPT record for specified log
*
* PARAMETERS: log - log structure
- * hard_sync - set to 1 to force metadata to be written
+ * hard_sync - set to 1 to force metadata to be written
*/
void jfs_syncpt(struct jfs_log *log, int hard_sync)
{ LOG_LOCK(log);
* insert filesystem in the active list of the log.
*
* PARAMETER: ipmnt - file system mount inode
- * iplog - log inode (out)
+ * iplog - log inode (out)
*
* RETURN:
*
if (sbi->flag & JFS_NOINTEGRITY)
return open_dummy_log(sb);
-
+
if (sbi->mntflag & JFS_INLINELOG)
return open_inline_log(sb);
log->bdev = bdev;
memcpy(log->uuid, sbi->loguuid, sizeof(log->uuid));
-
+
/*
* initialize log:
*/
* initialize the log from log superblock.
* set the log state in the superblock to LOGMOUNT and
* write SYNCPT log record.
- *
+ *
* PARAMETER: log - log structure
*
* RETURN: 0 - if ok
* -EINVAL - bad log magic number or superblock dirty
* error returned from logwait()
- *
+ *
* serialization: single first open thread
*/
int lmLogInit(struct jfs_log * log)
if (!test_bit(log_INLINELOG, &log->flag))
log->l2bsize = L2LOGPSIZE;
-
+
/* check for disabled journaling to disk */
if (log->no_integrity) {
/*
* PARAMETER: log - log inode
*
* RETURN: 0 - success
- *
+ *
* serialization: single last close thread
*/
int lmLogShutdown(struct jfs_log * log)
lrd.type = cpu_to_le16(LOG_SYNCPT);
lrd.length = 0;
lrd.log.syncpt.sync = 0;
-
+
lsn = lmWriteRecord(log, NULL, &lrd, NULL);
bp = log->bp;
lp = (struct logpage *) bp->l_ldata;
jfs_info("lmLogShutdown: lsn:0x%x page:%d eor:%d",
lsn, log->page, log->eor);
- out:
+ out:
/*
* shutdown per log i/o
*/
lbmFree(bpsuper);
return -EIO;
}
-
+
}
/*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_LOGMGR
/*
* log logical volume
*
- * a log is used to make the commit operation on journalled
+ * a log is used to make the commit operation on journalled
* files within the same logical volume group atomic.
* a log is implemented with a logical volume.
- * there is one log per logical volume group.
+ * there is one log per logical volume group.
*
* block 0 of the log logical volume is not used (ipl etc).
* block 1 contains a log "superblock" and is used by logFormat(),
- * lmLogInit(), lmLogShutdown(), and logRedo() to record status
- * of the log but is not otherwise used during normal processing.
+ * lmLogInit(), lmLogShutdown(), and logRedo() to record status
+ * of the log but is not otherwise used during normal processing.
* blocks 2 - (N-1) are used to contain log records.
*
- * when a volume group is varied-on-line, logRedo() must have
- * been executed before the file systems (logical volumes) in
+ * when a volume group is varied-on-line, logRedo() must have
+ * been executed before the file systems (logical volumes) in
* the volume group can be mounted.
*/
/*
* log logical page
*
* (this comment should be rewritten !)
- * the header and trailer structures (h,t) will normally have
+ * the header and trailer structures (h,t) will normally have
* the same page and eor value.
- * An exception to this occurs when a complete page write is not
+ * An exception to this occurs when a complete page write is not
* accomplished on a power failure. Since the hardware may "split write"
- * sectors in the page, any out of order sequence may occur during powerfail
+ * sectors in the page, any out of order sequence may occur during powerfail
* and needs to be recognized during log replay. The xor value is
* an "exclusive or" of all log words in the page up to eor. This
* 32 bit eor is stored with the top 16 bits in the header and the
* bottom 16 bits in the trailer. logredo can easily recognize pages
- * that were not completed by reconstructing this eor and checking
+ * that were not completed by reconstructing this eor and checking
* the log page.
*
- * Previous versions of the operating system did not allow split
- * writes and detected partially written records in logredo by
- * ordering the updates to the header, trailer, and the move of data
- * into the logdata area. The order: (1) data is moved (2) header
- * is updated (3) trailer is updated. In logredo, when the header
- * differed from the trailer, the header and trailer were reconciled
- * as follows: if h.page != t.page they were set to the smaller of
- * the two and h.eor and t.eor set to 8 (i.e. empty page). if (only)
+ * Previous versions of the operating system did not allow split
+ * writes and detected partially written records in logredo by
+ * ordering the updates to the header, trailer, and the move of data
+ * into the logdata area. The order: (1) data is moved (2) header
+ * is updated (3) trailer is updated. In logredo, when the header
+ * differed from the trailer, the header and trailer were reconciled
+ * as follows: if h.page != t.page they were set to the smaller of
+ * the two and h.eor and t.eor set to 8 (i.e. empty page). if (only)
* h.eor != t.eor they were set to the smaller of their two values.
*/
struct logpage {
* in a page, pages are written to temporary paging space if
* if they must be written to disk before commit, and i/o is
* scheduled for modified pages to their home location after
- * the log records containing the after values and the commit
+ * the log records containing the after values and the commit
* record is written to the log on disk, undo discards the copy
* in main-memory.)
*
- * a log record consists of a data area of variable length followed by
+ * a log record consists of a data area of variable length followed by
* a descriptor of fixed size LOGRDSIZE bytes.
- * the data area is rounded up to an integral number of 4-bytes and
+ * the data area is rounded up to an integral number of 4-bytes and
* must be no longer than LOGPSIZE.
- * the descriptor is of size of multiple of 4-bytes and aligned on a
- * 4-byte boundary.
+ * the descriptor is of size of multiple of 4-bytes and aligned on a
+ * 4-byte boundary.
* records are packed one after the other in the data area of log pages.
- * (sometimes a DUMMY record is inserted so that at least one record ends
+ * (sometimes a DUMMY record is inserted so that at least one record ends
* on every page or the longest record is placed on at most two pages).
- * the field eor in page header/trailer points to the byte following
+ * the field eor in page header/trailer points to the byte following
* the last record on a page.
*/
/*
* NOREDOINOEXT: the inode extent is freed
*
- * do not apply after-image records which precede this
- * record in the log with the any of the 4 page block
- * numbers in this inode extent.
- *
- * NOTE: The fileset and pxd fields MUST remain in
+ * do not apply after-image records which precede this
+ * record in the log with the any of the 4 page block
+ * numbers in this inode extent.
+ *
+ * NOTE: The fileset and pxd fields MUST remain in
* the same fields in the REDOPAGE record format.
*
*/
* do not apply records which precede this record in the log
* with the same inode number.
*
- * NOREDILE must be the first to be written at commit
+ * NOREDOFILE must be the first to be written at commit
* (last to be read in logredo()) - it prevents
* replay of preceding updates of all preceding generations
- * of the inumber esp. the on-disk inode itself,
- * but does NOT prevent
- * replay of the
+ * of the inumber esp. the on-disk inode itself.
*/
struct {
__le32 fileset; /* 4: fileset number */
} noredofile;
/*
- * ? NEWPAGE:
+ * ? NEWPAGE:
*
* metadata type dependent
*/
s64 l_blkno; /* 8: log page block number */
caddr_t l_ldata; /* 4: data page */
struct page *l_page; /* The page itself */
- uint l_offset; /* Offset of l_ldata within the page */
+ uint l_offset; /* Offset of l_ldata within the page */
wait_queue_head_t l_ioevent; /* 4: i/o done event */
};
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
goto add_failed;
if (!bio->bi_size)
goto dump_bio;
-
+
submit_bio(WRITE, bio);
}
if (redirty)
jfs_err("logical_size = %d, size = %d",
mp->logical_size, size);
dump_stack();
- goto unlock;
+ goto unlock;
}
mp->count++;
lock_metapage(mp);
"__get_metapage: using a "
"discarded metapage");
discard_metapage(mp);
- goto unlock;
+ goto unlock;
}
clear_bit(META_discard, &mp->flag);
}
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_METAPAGE
unsigned long flag; /* See Below */
unsigned long count; /* Reference count */
void *data; /* Data pointer */
- sector_t index; /* block address of page */
+ sector_t index; /* block address of page */
wait_queue_head_t wait;
/* implementation */
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
*
* note: file system in transition to aggregate/fileset:
*
- * file system mount is interpreted as the mount of aggregate,
- * if not already mounted, and mount of the single/only fileset in
+ * file system mount is interpreted as the mount of aggregate,
+ * if not already mounted, and mount of the single/only fileset in
* the aggregate;
*
* a file system/aggregate is represented by an internal inode
* (aka mount inode) initialized with aggregate superblock;
- * each vfs represents a fileset, and points to its "fileset inode
+ * each vfs represents a fileset, and points to its "fileset inode
* allocation map inode" (aka fileset inode):
- * (an aggregate itself is structured recursively as a filset:
- * an internal vfs is constructed and points to its "fileset inode
- * allocation map inode" (aka aggregate inode) where each inode
- * represents a fileset inode) so that inode number is mapped to
+ * (an aggregate itself is structured recursively as a filset:
+ * an internal vfs is constructed and points to its "fileset inode
+ * allocation map inode" (aka aggregate inode) where each inode
+ * represents a fileset inode) so that inode number is mapped to
* on-disk inode in uniform way at both aggregate and fileset level;
*
* each vnode/inode of a fileset is linked to its vfs (to facilitate
* per aggregate information, e.g., block size, etc.) as well as
* its file set inode.
*
- * aggregate
+ * aggregate
* ipmnt
* mntvfs -> fileset ipimap+ -> aggregate ipbmap -> aggregate ipaimap;
* fileset vfs -> vp(1) <-> ... <-> vp(n) <->vproot;
struct inode *ipbmap = NULL;
/*
- * read/validate superblock
+ * read/validate superblock
* (initialize mount inode from the superblock)
*/
if ((rc = chkSuper(sb))) {
*/
int jfs_mount_rw(struct super_block *sb, int remount)
{
- struct jfs_sb_info *sbi = JFS_SBI(sb);
+ struct jfs_sb_info *sbi = JFS_SBI(sb);
int rc;
/*
/*
* chkSuper()
*
- * validate the superblock of the file system to be mounted and
+ * validate the superblock of the file system to be mounted and
* get the file system parameters.
*
* returns
jfs_err("updateSuper: bad state");
} else if (sbi->state == FM_DIRTY)
return 0;
-
+
if ((rc = readSuper(sb, &bh)))
return rc;
* for this file system past this point in log.
* it is harmless if mount fails.
*
- * note: MOUNT record is at aggregate level, not at fileset level,
+ * note: MOUNT record is at aggregate level, not at fileset level,
* since log records of previous mounts of a fileset
- * (e.g., AFTER record of extent allocation) have to be processed
+ * (e.g., AFTER record of extent allocation) have to be processed
* to update block allocation map at aggregate level.
*/
static int logMOUNT(struct super_block *sb)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_SUPERBLOCK
/*
* make the magic number something a human could read
*/
-#define JFS_MAGIC "JFS1" /* Magic word */
+#define JFS_MAGIC "JFS1" /* Magic word */
#define JFS_VERSION 2 /* Version number: Version 2 */
#define LV_NAME_SIZE 11 /* MUST BE 11 for OS/2 boot sector */
-/*
- * aggregate superblock
+/*
+ * aggregate superblock
*
* The name superblock is too close to super_block, so the name has been
* changed to jfs_superblock. The utilities are still using the old name.
__le64 s_size; /* 8: aggregate size in hardware/LVM blocks;
* VFS: number of blocks
*/
- __le32 s_bsize; /* 4: aggregate block size in bytes;
+ __le32 s_bsize; /* 4: aggregate block size in bytes;
* VFS: fragment size
*/
__le16 s_l2bsize; /* 2: log2 of s_bsize */
__le32 s_flag; /* 4: aggregate attributes:
* see jfs_filsys.h
*/
- __le32 s_state; /* 4: mount/unmount/recovery state:
+ __le32 s_state; /* 4: mount/unmount/recovery state:
* see jfs_filsys.h
*/
__le32 s_compress; /* 4: > 0 if data compression */
struct timestruc_t s_time; /* 8: time last updated */
__le32 s_fsckloglen; /* 4: Number of filesystem blocks reserved for
- * the fsck service log.
+ * the fsck service log.
* N.B. These blocks are divided among the
* versions kept. This is not a per
* version size.
- * N.B. These blocks are included in the
+ * N.B. These blocks are included in the
* length field of s_fsckpxd.
*/
s8 s_fscklog; /* 1: which fsck service log is most recent
* 1 => the first one
* 2 => the 2nd one
*/
- char s_fpack[11]; /* 11: file system volume name
+ char s_fpack[11]; /* 11: file system volume name
* N.B. This must be 11 bytes to
* conform with the OS/2 BootSector
* requirements
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_TXNMGR
/* (8) */
struct lv lv[20]; /* 40: */
-}; /* (48) */
+}; /* (48) */
#define dt_lock linelock
* at tlock.lock/linelock: watch for alignment;
* N.B. next field may be set by linelock, and should not
* be modified by maplock;
- * N.B. index of the first pxdlock specifies index of next
- * free maplock (i.e., number of maplock) in the tlock;
+ * N.B. index of the first pxdlock specifies index of next
+ * free maplock (i.e., number of maplock) in the tlock;
*/
struct maplock {
lid_t next; /* 2: */
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
* note: file system in transition to aggregate/fileset:
* (ref. jfs_mount.c)
*
- * file system unmount is interpreted as mount of the single/only
- * fileset in the aggregate and, if unmount of the last fileset,
+ * file system unmount is interpreted as mount of the single/only
+ * fileset in the aggregate and, if unmount of the last fileset,
* as unmount of the aggerate;
*/
jfs_info("UnMount JFS: sb:0x%p", sb);
/*
- * update superblock and close log
+ * update superblock and close log
*
* if mounted read-write and log based recovery was enabled
*/
if ((log = sbi->log))
/*
- * Wait for outstanding transactions to be written to log:
+ * Wait for outstanding transactions to be written to log:
*/
jfs_flush_journal(log, 2);
/*
* ensure all file system file pages are propagated to their
- * home blocks on disk (and their in-memory buffer pages are
+ * home blocks on disk (and their in-memory buffer pages are
* invalidated) BEFORE updating file system superblock state
- * (to signify file system is unmounted cleanly, and thus in
- * consistent state) and log superblock active file system
+ * (to signify file system is unmounted cleanly, and thus in
+ * consistent state) and log superblock active file system
* list (to signify skip logredo()).
*/
if (log) { /* log = NULL if read-only mount */
updateSuper(sb, FM_CLEAN);
/*
- * close log:
+ * close log:
*
* remove file system from log active file system list.
*/
return 0;
/*
- * close log:
+ * close log:
*
* remove file system from log active file system list.
*/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
warn--;
warn_again--;
printk(KERN_ERR
- "non-latin1 character 0x%x found in JFS file name\n",
- le16_to_cpu(from[i]));
+ "non-latin1 character 0x%x found in JFS file name\n",
+ le16_to_cpu(from[i]));
printk(KERN_ERR
"mount with iocharset=utf8 to access\n");
}
/*
- * Copyright (c) International Business Machines Corp., 2000-2002
- * Portions Copyright (c) Christoph Hellwig, 2001-2002
+ * Copyright (C) International Business Machines Corp., 2000-2002
+ * Portions Copyright (C) Christoph Hellwig, 2001-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_UNICODE
/*
- * Copyright (c) International Business Machines Corp., 2000-2002
+ * Copyright (C) International Business Machines Corp., 2000-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
- * Copyright (c) International Business Machines Corp., 2000-2002
+ * Copyright (C) International Business Machines Corp., 2000-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* return:
*/
int xtAppend(tid_t tid, /* transaction id */
- struct inode *ip, int xflag, s64 xoff, s32 maxblocks,
+ struct inode *ip, int xflag, s64 xoff, s32 maxblocks,
s32 * xlenp, /* (in/out) */
s64 * xaddrp, /* (in/out) */
int flag)
pxdlist.maxnpxd = pxdlist.npxd = 0;
pxd = &pxdlist.pxd[0];
nblocks = JFS_SBI(ip->i_sb)->nbperpage;
- for (; nsplit > 0; nsplit--, pxd++, xaddr += nblocks, maxblocks -= nblocks) {
+ for (; nsplit > 0; nsplit--, pxd++, xaddr += nblocks, maxblocks -= nblocks) {
if ((rc = dbAllocBottomUp(ip, xaddr, (s64) nblocks)) == 0) {
PXDaddress(pxd, xaddr);
PXDlength(pxd, nblocks);
goto out;
}
- xlen = min(xlen, maxblocks);
+ xlen = min(xlen, maxblocks);
/*
* allocate data extent requested
/*
- * Copyright (c) International Business Machines Corp., 2000-2002
+ * Copyright (C) International Business Machines Corp., 2000-2002
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _H_JFS_XTREE
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/*
* NAME: free_ea_wmap(inode)
*
- * FUNCTION: free uncommitted extended attributes from working map
+ * FUNCTION: free uncommitted extended attributes from working map
*
*/
static inline void free_ea_wmap(struct inode *inode)
* FUNCTION: create a regular file in the parent directory <dip>
* with name = <from dentry> and mode = <mode>
*
- * PARAMETER: dip - parent directory vnode
+ * PARAMETER: dip - parent directory vnode
* dentry - dentry of new file
* mode - create mode (rwxrwxrwx).
* nd- nd struct
* FUNCTION: create a child directory in the parent directory <dip>
* with name = <from dentry> and mode = <mode>
*
- * PARAMETER: dip - parent directory vnode
+ * PARAMETER: dip - parent directory vnode
* dentry - dentry of child directory
* mode - create mode (rwxrwxrwx).
*
*
* FUNCTION: remove a link to child directory
*
- * PARAMETER: dip - parent inode
+ * PARAMETER: dip - parent inode
* dentry - child directory dentry
*
* RETURN: -EINVAL - if name is . or ..
* errors from subroutines
*
* note:
- * if other threads have the directory open when the last link
- * is removed, the "." and ".." entries, if present, are removed before
- * rmdir() returns and no new entries may be created in the directory,
- * but the directory is not removed until the last reference to
+ * if other threads have the directory open when the last link
+ * is removed, the "." and ".." entries, if present, are removed before
+ * rmdir() returns and no new entries may be created in the directory,
+ * but the directory is not removed until the last reference to
* the directory is released (cf.unlink() of regular file).
*/
static int jfs_rmdir(struct inode *dip, struct dentry *dentry)
/*
* NAME: jfs_unlink(dip, dentry)
*
- * FUNCTION: remove a link to object <vp> named by <name>
+ * FUNCTION: remove a link to object <vp> named by <name>
* from parent directory <dvp>
*
- * PARAMETER: dip - inode of parent directory
- * dentry - dentry of object to be removed
+ * PARAMETER: dip - inode of parent directory
+ * dentry - dentry of object to be removed
*
* RETURN: errors from subroutines
*
*
* FUNCTION: for non-directory, called by jfs_remove(),
* truncate a regular file, directory or symbolic
- * link to zero length. return 0 if type is not
+ * link to zero length. return 0 if type is not
* one of these.
*
* if the file is currently associated with a VM segment
* map by ctrunc1.
* if there is no VM segment on entry, the resources are
* freed in both work and permanent map.
- * (? for temporary file - memory object is cached even
+ * (? for temporary file - memory object is cached even
* after no reference:
* reference count > 0 - )
*
/*
* free xtree/data (truncate to zero length):
- * free xtree/data pages from cache if COMMIT_PWMAP,
+ * free xtree/data pages from cache if COMMIT_PWMAP,
* free xtree/data blocks from persistent block map, and
* free xtree/data blocks from working block map if COMMIT_PWMAP;
*/
* NAME: jfs_free_zero_link()
*
* FUNCTION: for non-directory, called by iClose(),
- * free resources of a file from cache and WORKING map
+ * free resources of a file from cache and WORKING map
* for a file previously committed with zero link count
* while associated with a pager object,
*
* FUNCTION: create a link to <vp> by the name = <name>
* in the parent directory <dvp>
*
- * PARAMETER: vp - target object
+ * PARAMETER: vp - target object
* dvp - parent directory of new link
* name - name of new link to target object
* crp - credential
* in directory <dip>
*
* PARAMETER: dip - parent directory vnode
- * dentry - dentry of symbolic link
- * name - the path name of the existing object
+ * dentry - dentry of symbolic link
+ * name - the path name of the existing object
* that will be the source of the link
*
* RETURN: errors from subroutines
tblk->u.ixpxd = JFS_IP(ip)->ixpxd;
/* fix symlink access permission
- * (dir_create() ANDs in the u.u_cmask,
+ * (dir_create() ANDs in the u.u_cmask,
* but symlinks really need to be 777 access)
*/
ip->i_mode |= 0777;
ip->i_mapping->a_ops = &jfs_aops;
/*
- * even though the data of symlink object (source
+ * even though the data of symlink object (source
* path name) is treated as non-journaled user data,
* it is read/written thru buffer cache for performance.
*/
/* free block resources */
if ((new_size = commitZeroLink(tid, new_ip)) < 0) {
txAbort(tid, 1); /* Marks FS Dirty */
- rc = new_size;
+ rc = new_size;
goto out4;
}
tblk = tid_to_tblock(tid);
new_size = xtTruncate_pmap(tid, new_ip, new_size);
if (new_size < 0) {
txAbort(tid, 1);
- rc = new_size;
+ rc = new_size;
} else
rc = txCommit(tid, 1, &new_ip, COMMIT_SYNC);
txEnd(tid);
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
"as read-only\n",
sb->s_id);
sb->s_flags |= MS_RDONLY;
- }
+ }
/* nothing is done for continue beyond marking the superblock dirty */
}
int rc;
jfs_inode_cachep =
- kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
+ kmem_cache_create("jfs_ip", sizeof(struct jfs_inode_info), 0,
SLAB_RECLAIM_ACCOUNT|SLAB_MEM_SPREAD,
init_once, NULL);
if (jfs_inode_cachep == NULL)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
+ * along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
*
* 0 4 4 + EA_SIZE(ea1)
* +------------+-------------------+--------------------+-----
- * | Overall EA | First FEA Element | Second FEA Element | .....
+ * | Overall EA | First FEA Element | Second FEA Element | .....
* | List Size | | |
* +------------+-------------------+--------------------+-----
*
/*
* NAME: ea_write_inline
- *
+ *
* FUNCTION: Attempt to write an EA inline if area is available
- *
+ *
* PRE CONDITIONS:
* Already verified that the specified EA is small enough to fit inline
*
/*
* NAME: ea_write
- *
+ *
* FUNCTION: Write an EA for an inode
- *
- * PRE CONDITIONS: EA has been verified
+ *
+ * PRE CONDITIONS: EA has been verified
*
* PARAMETERS:
* ip - Inode pointer
/*
* NAME: ea_read_inline
- *
+ *
* FUNCTION: Read an inlined EA into user's buffer
- *
+ *
* PARAMETERS:
* ip - Inode pointer
* ealist - Pointer to buffer to fill in with EA
/*
* NAME: ea_read
- *
+ *
* FUNCTION: copy EA data into user's buffer
- *
+ *
* PARAMETERS:
* ip - Inode pointer
* ealist - Pointer to buffer to fill in with EA
return -EIO;
}
- /*
+ /*
* Figure out how many blocks were allocated when this EA list was
* originally written to disk.
*/
/*
* NAME: ea_get
- *
+ *
* FUNCTION: Returns buffer containing existing extended attributes.
* The size of the buffer will be the larger of the existing
* attributes size, or min_size.
*
* The buffer, which may be inlined in the inode or in the
- * page cache must be release by calling ea_release or ea_put
- *
+ * page cache must be release by calling ea_release or ea_put
+ *
* PARAMETERS:
* inode - Inode pointer
* ea_buf - Structure to be populated with ealist and its metadata
/* compute required size of list */
for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea)) {
- if (can_list(ea))
+ if (can_list(ea))
size += name_size(ea) + 1;
}
/* Copy attribute names to buffer */
buffer = data;
for (ea = FIRST_EA(ealist); ea < END_EALIST(ealist); ea = NEXT_EA(ea)) {
- if (can_list(ea)) {
+ if (can_list(ea)) {
int namelen = copy_name(buffer, ea);
buffer += namelen + 1;
}
git.openpandora.org / pandora-kernel.git / commitdiff