static void copy_to_dinode(struct dinode *, struct inode *);
/*
- * NAME: diMount()
+ * NAME: diMount()
*
- * FUNCTION: initialize the incore inode map control structures for
+ * FUNCTION: initialize the incore inode map control structures for
* a fileset or aggregate init time.
*
- * the inode map's control structure (dinomap) is
- * brought in from disk and placed in virtual memory.
+ * the inode map's control structure (dinomap) is
+ * brought in from disk and placed in virtual memory.
*
* PARAMETERS:
- * ipimap - pointer to inode map inode for the aggregate or fileset.
+ * ipimap - pointer to inode map inode for the aggregate or fileset.
*
* RETURN VALUES:
- * 0 - success
- * -ENOMEM - insufficient free virtual memory.
- * -EIO - i/o error.
+ * 0 - success
+ * -ENOMEM - insufficient free virtual memory.
+ * -EIO - i/o error.
*/
int diMount(struct inode *ipimap)
{
/*
- * NAME: diUnmount()
+ * NAME: diUnmount()
*
- * FUNCTION: write to disk the incore inode map control structures for
+ * FUNCTION: write to disk the incore inode map control structures for
* a fileset or aggregate at unmount time.
*
* PARAMETERS:
- * ipimap - pointer to inode map inode for the aggregate or fileset.
+ * ipimap - pointer to inode map inode for the aggregate or fileset.
*
* RETURN VALUES:
- * 0 - success
- * -ENOMEM - insufficient free virtual memory.
- * -EIO - i/o error.
+ * 0 - success
+ * -ENOMEM - insufficient free virtual memory.
+ * -EIO - i/o error.
*/
int diUnmount(struct inode *ipimap, int mounterror)
{
/*
- * NAME: diRead()
+ * NAME: diRead()
*
- * FUNCTION: initialize an incore inode from disk.
+ * FUNCTION: initialize an incore inode from disk.
*
* on entry, the specifed incore inode should itself
* specify the disk inode number corresponding to the
* this routine handles incore inode initialization for
* both "special" and "regular" inodes. special inodes
* are those required early in the mount process and
- * require special handling since much of the file system
+ * require special handling since much of the file system
* 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().
* incore inode.
*
* PARAMETERS:
- * ip - pointer to incore inode to be initialized from disk.
+ * ip - pointer to incore inode to be initialized from disk.
*
* RETURN VALUES:
- * 0 - success
- * -EIO - i/o error.
- * -ENOMEM - insufficient memory
+ * 0 - success
+ * -EIO - i/o error.
+ * -ENOMEM - insufficient memory
*
*/
int diRead(struct inode *ip)
/* read the page of disk inode */
mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1);
- if (mp == 0) {
+ if (!mp) {
jfs_err("diRead: read_metapage failed");
return -EIO;
}
- /* locate the the disk inode requested */
+ /* locate the disk inode requested */
dp = (struct dinode *) mp->data;
dp += rel_inode;
/*
- * NAME: diReadSpecial()
+ * NAME: diReadSpecial()
*
- * FUNCTION: initialize a 'special' inode from disk.
+ * FUNCTION: initialize a 'special' inode from disk.
*
* this routines handles aggregate level inodes. The
* inode cache cannot differentiate between the
* aggregate inodes and the filesystem inodes, so we
* handle these here. We don't actually use the aggregate
- * inode map, since these inodes are at a fixed location
+ * inode map, since these inodes are at a fixed location
* and in some cases the aggregate inode map isn't initialized
* yet.
*
* PARAMETERS:
- * sb - filesystem superblock
+ * sb - filesystem superblock
* inum - aggregate inode number
* secondary - 1 if secondary aggregate inode table
*
* RETURN VALUES:
- * new inode - success
- * NULL - i/o error.
+ * new inode - success
+ * NULL - i/o error.
*/
struct inode *diReadSpecial(struct super_block *sb, ino_t inum, int secondary)
{
}
/*
- * NAME: diWriteSpecial()
+ * NAME: diWriteSpecial()
*
- * FUNCTION: Write the special inode to disk
+ * FUNCTION: Write the special inode to disk
*
* PARAMETERS:
- * ip - special inode
+ * ip - special inode
* secondary - 1 if secondary aggregate inode table
*
* RETURN VALUES: none
}
/*
- * NAME: diFreeSpecial()
+ * NAME: diFreeSpecial()
*
- * FUNCTION: Free allocated space for special inode
+ * FUNCTION: Free allocated space for special inode
*/
void diFreeSpecial(struct inode *ip)
{
/*
- * NAME: diWrite()
+ * NAME: diWrite()
*
- * FUNCTION: write the on-disk inode portion of the in-memory inode
+ * FUNCTION: write the on-disk inode portion of the in-memory inode
* to its corresponding on-disk inode.
*
* on entry, the specifed incore inode should itself
*
* PARAMETERS:
* tid - transacation id
- * ip - pointer to incore inode to be written to the inode extent.
+ * ip - pointer to incore inode to be written to the inode extent.
*
* RETURN VALUES:
- * 0 - success
- * -EIO - i/o error.
+ * 0 - success
+ * -EIO - i/o error.
*/
int diWrite(tid_t tid, struct inode *ip)
{
/* read the page of disk inode */
retry:
mp = read_metapage(ipimap, pageno << sbi->l2nbperpage, PSIZE, 1);
- if (mp == 0)
+ if (!mp)
return -EIO;
/* get the pointer to the disk inode */
ilinelock = (struct linelock *) & tlck->lock;
/*
- * regular file: 16 byte (XAD slot) granularity
+ * regular file: 16 byte (XAD slot) granularity
*/
if (type & tlckXTREE) {
xtpage_t *p, *xp;
xad->flag &= ~(XAD_NEW | XAD_EXTENDED);
}
/*
- * directory: 32 byte (directory entry slot) granularity
+ * directory: 32 byte (directory entry slot) granularity
*/
else if (type & tlckDTREE) {
dtpage_t *p, *xp;
}
/*
- * lock/copy inode base: 128 byte slot granularity
+ * lock/copy inode base: 128 byte slot granularity
*/
-// baseDinode:
lv = & dilinelock->lv[dilinelock->index];
lv->offset = dioffset >> L2INODESLOTSIZE;
copy_to_dinode(dp, ip);
lv->length = 1;
dilinelock->index++;
-#ifdef _JFS_FASTDASD
- /*
- * We aren't logging changes to the DASD used in directory inodes,
- * but we need to write them to disk. If we don't unmount cleanly,
- * mount will recalculate the DASD used.
- */
- if (S_ISDIR(ip->i_mode)
- && (ip->i_ipmnt->i_mntflag & JFS_DASD_ENABLED))
- memcpy(&dp->di_DASD, &ip->i_DASD, sizeof(struct dasd));
-#endif /* _JFS_FASTDASD */
-
/* release the buffer holding the updated on-disk inode.
* the buffer will be later written by commit processing.
*/
/*
- * NAME: diFree(ip)
+ * NAME: diFree(ip)
*
- * FUNCTION: free a specified inode from the inode working map
+ * FUNCTION: free a specified inode from the inode working map
* for a fileset or aggregate.
*
* if the inode to be freed represents the first (only)
* 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.
+ * 0 - success
+ * -EIO - i/o error.
*/
int diFree(struct inode *ip)
{
* the map.
*/
if (iagno >= imap->im_nextiag) {
- dump_mem("imap", imap, 32);
+ print_hex_dump(KERN_ERR, "imap: ", DUMP_PREFIX_ADDRESS, 16, 4,
+ imap, 32, 0);
jfs_error(ip->i_sb,
"diFree: inum = %d, iagno = %d, nextiag = %d",
(uint) inum, iagno, imap->im_nextiag);
return -EIO;
}
/*
- * inode extent still has some inodes or below low water mark:
- * keep the inode extent;
+ * inode extent still has some inodes or below low water mark:
+ * keep the inode extent;
*/
if (bitmap ||
imap->im_agctl[agno].numfree < 96 ||
/*
- * inode extent has become free and above low water mark:
- * free the inode extent;
+ * inode extent has become free and above low water mark:
+ * free the inode extent;
*/
/*
- * prepare to update iag list(s) (careful update step 1)
+ * prepare to update iag list(s) (careful update step 1)
*/
amp = bmp = cmp = dmp = NULL;
fwd = back = -1;
invalidate_pxd_metapages(ip, freepxd);
/*
- * update iag list(s) (careful update step 2)
+ * update iag list(s) (careful update step 2)
*/
/* add the iag to the ag extent free list if this is the
* first free extent for the iag.
/*
- * NAME: diAlloc(pip,dir,ip)
+ * 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.
+ * 0 - success.
+ * -ENOSPC - insufficient disk resources.
+ * -EIO - i/o error.
*/
int diAlloc(struct inode *pip, bool dir, struct inode *ip)
{
inum = pip->i_ino + 1;
ino = inum & (INOSPERIAG - 1);
- /* back off the the hint if it is outside of the iag */
+ /* back off the hint if it is outside of the iag */
if (ino == 0)
inum = pip->i_ino;
addext = (imap->im_agctl[agno].numfree < 32 && iagp->nfreeexts);
/*
- * try to allocate from the IAG
+ * try to allocate 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).
/*
- * NAME: diAllocAG(imap,agno,dir,ip)
+ * NAME: diAllocAG(imap,agno,dir,ip)
*
- * FUNCTION: allocate a disk inode from the allocation group.
+ * FUNCTION: allocate a disk inode from the allocation group.
*
* this routine first determines if a new extent of free
* inodes should be added for the allocation group, with
* 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.
+ * 0 - success.
+ * -ENOSPC - insufficient disk resources.
+ * -EIO - i/o error.
*/
static int
diAllocAG(struct inomap * imap, int agno, bool dir, struct inode *ip)
/*
- * NAME: diAllocAny(imap,agno,dir,iap)
+ * NAME: diAllocAny(imap,agno,dir,iap)
*
- * FUNCTION: allocate a disk inode from any other allocation group.
+ * FUNCTION: allocate a disk inode from any other allocation group.
*
* this routine is called when an allocation attempt within
* the primary allocation group has failed. if attempts to
* 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.
+ * 0 - success.
+ * -ENOSPC - insufficient disk resources.
+ * -EIO - i/o error.
*/
static int
diAllocAny(struct inomap * imap, int agno, bool dir, struct inode *ip)
/*
- * NAME: diAllocIno(imap,agno,ip)
+ * NAME: diAllocIno(imap,agno,ip)
*
- * FUNCTION: allocate a disk inode from the allocation group's free
+ * FUNCTION: allocate a disk inode from the allocation group's free
* inode list, returning an error if this free list is
* empty (i.e. no iags on the list).
*
* 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.
+ * 0 - success.
+ * -ENOSPC - insufficient disk resources.
+ * -EIO - i/o error.
*/
static int diAllocIno(struct inomap * imap, int agno, struct inode *ip)
{
/*
- * NAME: diAllocExt(imap,agno,ip)
+ * 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
* 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.
+ * 0 - success.
+ * -ENOSPC - insufficient disk resources.
+ * -EIO - i/o error.
*/
static int diAllocExt(struct inomap * imap, int agno, struct inode *ip)
{
/*
- * NAME: diAllocBit(imap,iagp,ino)
+ * NAME: diAllocBit(imap,iagp,ino)
*
* FUNCTION: allocate a backed inode from an iag.
*
* 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.
+ * 0 - success.
+ * -ENOSPC - insufficient disk resources.
+ * -EIO - i/o error.
*/
static int diAllocBit(struct inomap * imap, struct iag * iagp, int ino)
{
/*
- * NAME: diNewExt(imap,iagp,extno)
+ * NAME: diNewExt(imap,iagp,extno)
*
- * FUNCTION: initialize a new extent of inodes for an iag, allocating
- * the first inode of the extent for use for the current
- * allocation request.
+ * FUNCTION: initialize a new extent of inodes for an iag, allocating
+ * the first inode of the extent for use for the current
+ * allocation request.
*
* disk resources are allocated for the new extent of inodes
* and the inodes themselves are initialized to reflect their
* 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.
+ * 0 - success.
+ * -ENOSPC - insufficient disk resources.
+ * -EIO - i/o error.
*/
static int diNewExt(struct inomap * imap, struct iag * iagp, int extno)
{
/*
- * NAME: diNewIAG(imap,iagnop,agno)
+ * NAME: diNewIAG(imap,iagnop,agno)
*
* FUNCTION: allocate a new iag for an allocation group.
*
* 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.
+ * 0 - success.
+ * -ENOSPC - insufficient disk resources.
+ * -EIO - i/o error.
*
* serialization:
* AG lock held on entry/exit;
*
* note: new iag transaction:
* . synchronously write iag;
- * . write log of xtree and inode of imap;
+ * . write log of xtree and inode of imap;
* . commit;
* . synchronous write of xtree (right to left, bottom to top);
* . at start of logredo(): init in-memory imap with one additional iag page;
s64 xaddr = 0;
s64 blkno;
tid_t tid;
-#ifdef _STILL_TO_PORT
- xad_t xad;
-#endif /* _STILL_TO_PORT */
struct inode *iplist[1];
/* pick up pointers to the inode map and mount inodes */
}
/*
- * NAME: diIAGRead()
+ * NAME: diIAGRead()
*
- * FUNCTION: get the buffer for the specified iag within a fileset
+ * 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:
* the read lock is unnecessary.)
*
* RETURN VALUES:
- * 0 - success.
- * -EIO - i/o error.
+ * 0 - success.
+ * -EIO - i/o error.
*/
static int diIAGRead(struct inomap * imap, int iagno, struct metapage ** mpp)
{
}
/*
- * NAME: diFindFree()
+ * NAME: diFindFree()
*
- * FUNCTION: find the first free bit in a word starting at
+ * FUNCTION: find the first free bit in a word starting at
* 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
+ * bit position of first free bit in the word or 32 if
* no free bits were found.
*/
static int diFindFree(u32 word, int start)
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;
}
/*
- * process each iag page of the map.
+ * process each iag page of the map.
*
* rebuild AG Free Inode List, AG Free Inode Extent List;
*/
/* leave free iag in the free iag list */
if (iagp->nfreeexts == cpu_to_le32(EXTSPERIAG)) {
- release_metapage(bp);
+ release_metapage(bp);
continue;
}
}
/*
- * NAME: copy_from_dinode()
+ * NAME: copy_from_dinode()
*
- * FUNCTION: Copies inode info from disk inode to in-memory inode
+ * FUNCTION: Copies inode info from disk inode to in-memory inode
*
* RETURN VALUES:
- * 0 - success
- * -ENOMEM - insufficient memory
+ * 0 - success
+ * -ENOMEM - insufficient memory
*/
static int copy_from_dinode(struct dinode * dip, struct inode *ip)
{
jfs_ip->fileset = le32_to_cpu(dip->di_fileset);
jfs_ip->mode2 = le32_to_cpu(dip->di_mode);
+ jfs_set_inode_flags(ip);
ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff;
if (sbi->umask != -1) {
}
/*
- * NAME: copy_to_dinode()
+ * NAME: copy_to_dinode()
*
- * FUNCTION: Copies inode info from in-memory inode to disk inode
+ * FUNCTION: Copies inode info from in-memory inode to disk inode
*/
static void copy_to_dinode(struct dinode * dip, struct inode *ip)
{
dip->di_gid = cpu_to_le32(ip->i_gid);
else
dip->di_gid = cpu_to_le32(jfs_ip->saved_gid);
+ jfs_get_inode_flags(jfs_ip);
/*
* mode2 is only needed for storing the higher order bits.
* Trust i_mode for the lower order ones
git.openpandora.org / pandora-kernel.git / blobdiff