-#
-# Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms of version 2 of the GNU General Public License as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it would be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
-#
-# Further, this software is distributed without any warranty that it is
-# free of the rightful claim of any third person regarding infringement
-# or the like. Any license provided herein, whether implied or
-# otherwise, applies only to this software file. Patent licenses, if
-# any, provided herein do not apply to combinations of this program with
-# other software, or any other product whatsoever.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write the Free Software Foundation, Inc., 59
-# Temple Place - Suite 330, Boston MA 02111-1307, USA.
-#
-# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
-# Mountain View, CA 94043, or:
-#
-# http://www.sgi.com
-#
-# For further information regarding this notice, see:
-#
-# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
-#
-
-EXTRA_CFLAGS += -Ifs/xfs -Ifs/xfs/linux-2.6 -funsigned-char
-
-ifeq ($(CONFIG_XFS_DEBUG),y)
- EXTRA_CFLAGS += -g -DSTATIC="" -DDEBUG
- EXTRA_CFLAGS += -DPAGEBUF_LOCK_TRACKING
-endif
-ifeq ($(CONFIG_XFS_TRACE),y)
- EXTRA_CFLAGS += -DXFS_ALLOC_TRACE
- EXTRA_CFLAGS += -DXFS_ATTR_TRACE
- EXTRA_CFLAGS += -DXFS_BLI_TRACE
- EXTRA_CFLAGS += -DXFS_BMAP_TRACE
- EXTRA_CFLAGS += -DXFS_BMBT_TRACE
- EXTRA_CFLAGS += -DXFS_DIR_TRACE
- EXTRA_CFLAGS += -DXFS_DIR2_TRACE
- EXTRA_CFLAGS += -DXFS_DQUOT_TRACE
- EXTRA_CFLAGS += -DXFS_ILOCK_TRACE
- EXTRA_CFLAGS += -DXFS_LOG_TRACE
- EXTRA_CFLAGS += -DXFS_RW_TRACE
- EXTRA_CFLAGS += -DPAGEBUF_TRACE
- EXTRA_CFLAGS += -DXFS_VNODE_TRACE
-endif
-
-obj-$(CONFIG_XFS_FS) += xfs.o
-
-xfs-$(CONFIG_XFS_QUOTA) += $(addprefix quota/, \
- xfs_dquot.o \
- xfs_dquot_item.o \
- xfs_trans_dquot.o \
- xfs_qm_syscalls.o \
- xfs_qm_bhv.o \
- xfs_qm.o)
-ifeq ($(CONFIG_XFS_QUOTA),y)
-xfs-$(CONFIG_PROC_FS) += quota/xfs_qm_stats.o
-endif
-
-xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o
-xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o
-xfs-$(CONFIG_PROC_FS) += linux-2.6/xfs_stats.o
-xfs-$(CONFIG_SYSCTL) += linux-2.6/xfs_sysctl.o
-xfs-$(CONFIG_COMPAT) += linux-2.6/xfs_ioctl32.o
-xfs-$(CONFIG_XFS_EXPORT) += linux-2.6/xfs_export.o
-
-
-xfs-y += xfs_alloc.o \
- xfs_alloc_btree.o \
- xfs_attr.o \
- xfs_attr_leaf.o \
- xfs_behavior.o \
- xfs_bit.o \
- xfs_bmap.o \
- xfs_bmap_btree.o \
- xfs_btree.o \
- xfs_buf_item.o \
- xfs_da_btree.o \
- xfs_dir.o \
- xfs_dir2.o \
- xfs_dir2_block.o \
- xfs_dir2_data.o \
- xfs_dir2_leaf.o \
- xfs_dir2_node.o \
- xfs_dir2_sf.o \
- xfs_dir_leaf.o \
- xfs_error.o \
- xfs_extfree_item.o \
- xfs_fsops.o \
- xfs_ialloc.o \
- xfs_ialloc_btree.o \
- xfs_iget.o \
- xfs_inode.o \
- xfs_inode_item.o \
- xfs_iocore.o \
- xfs_iomap.o \
- xfs_itable.o \
- xfs_dfrag.o \
- xfs_log.o \
- xfs_log_recover.o \
- xfs_macros.o \
- xfs_mount.o \
- xfs_rename.o \
- xfs_trans.o \
- xfs_trans_ail.o \
- xfs_trans_buf.o \
- xfs_trans_extfree.o \
- xfs_trans_inode.o \
- xfs_trans_item.o \
- xfs_utils.o \
- xfs_vfsops.o \
- xfs_vnodeops.o \
- xfs_rw.o \
- xfs_dmops.o \
- xfs_qmops.o
-
-xfs-$(CONFIG_XFS_TRACE) += xfs_dir2_trace.o
-
-# Objects in linux-2.6/
-xfs-y += $(addprefix linux-2.6/, \
- kmem.o \
- xfs_aops.o \
- xfs_buf.o \
- xfs_file.o \
- xfs_fs_subr.o \
- xfs_globals.o \
- xfs_ioctl.o \
- xfs_iops.o \
- xfs_lrw.o \
- xfs_super.o \
- xfs_vfs.o \
- xfs_vnode.o)
-
-# Objects in support/
-xfs-y += $(addprefix support/, \
- debug.o \
- move.o \
- qsort.o \
- uuid.o)
-
-xfs-$(CONFIG_XFS_TRACE) += support/ktrace.o
-
+include $(TOPDIR)/fs/xfs/Makefile-linux-$(VERSION).$(PATCHLEVEL)
--- /dev/null
+#
+# Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like. Any license provided herein, whether implied or
+# otherwise, applies only to this software file. Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+#
+# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+# Mountain View, CA 94043, or:
+#
+# http://www.sgi.com
+#
+# For further information regarding this notice, see:
+#
+# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+#
+
+EXTRA_CFLAGS += -Ifs/xfs -Ifs/xfs/linux-2.6 -funsigned-char
+
+XFS_LINUX := linux-2.6
+
+ifeq ($(CONFIG_XFS_DEBUG),y)
+ EXTRA_CFLAGS += -g -DSTATIC="" -DDEBUG
+ EXTRA_CFLAGS += -DPAGEBUF_LOCK_TRACKING
+endif
+ifeq ($(CONFIG_XFS_TRACE),y)
+ EXTRA_CFLAGS += -DXFS_ALLOC_TRACE
+ EXTRA_CFLAGS += -DXFS_ATTR_TRACE
+ EXTRA_CFLAGS += -DXFS_BLI_TRACE
+ EXTRA_CFLAGS += -DXFS_BMAP_TRACE
+ EXTRA_CFLAGS += -DXFS_BMBT_TRACE
+ EXTRA_CFLAGS += -DXFS_DIR_TRACE
+ EXTRA_CFLAGS += -DXFS_DIR2_TRACE
+ EXTRA_CFLAGS += -DXFS_DQUOT_TRACE
+ EXTRA_CFLAGS += -DXFS_ILOCK_TRACE
+ EXTRA_CFLAGS += -DXFS_LOG_TRACE
+ EXTRA_CFLAGS += -DXFS_RW_TRACE
+ EXTRA_CFLAGS += -DPAGEBUF_TRACE
+ EXTRA_CFLAGS += -DXFS_VNODE_TRACE
+endif
+
+obj-$(CONFIG_XFS_FS) += xfs.o
+obj-$(CONFIG_XFS_QUOTA) += quota/
+
+xfs-$(CONFIG_XFS_RT) += xfs_rtalloc.o
+xfs-$(CONFIG_XFS_POSIX_ACL) += xfs_acl.o
+xfs-$(CONFIG_PROC_FS) += $(XFS_LINUX)/xfs_stats.o
+xfs-$(CONFIG_SYSCTL) += $(XFS_LINUX)/xfs_sysctl.o
+xfs-$(CONFIG_COMPAT) += $(XFS_LINUX)/xfs_ioctl32.o
+xfs-$(CONFIG_XFS_EXPORT) += $(XFS_LINUX)/xfs_export.o
+
+
+xfs-y += xfs_alloc.o \
+ xfs_alloc_btree.o \
+ xfs_attr.o \
+ xfs_attr_leaf.o \
+ xfs_behavior.o \
+ xfs_bit.o \
+ xfs_bmap.o \
+ xfs_bmap_btree.o \
+ xfs_btree.o \
+ xfs_buf_item.o \
+ xfs_da_btree.o \
+ xfs_dir.o \
+ xfs_dir2.o \
+ xfs_dir2_block.o \
+ xfs_dir2_data.o \
+ xfs_dir2_leaf.o \
+ xfs_dir2_node.o \
+ xfs_dir2_sf.o \
+ xfs_dir_leaf.o \
+ xfs_error.o \
+ xfs_extfree_item.o \
+ xfs_fsops.o \
+ xfs_ialloc.o \
+ xfs_ialloc_btree.o \
+ xfs_iget.o \
+ xfs_inode.o \
+ xfs_inode_item.o \
+ xfs_iocore.o \
+ xfs_iomap.o \
+ xfs_itable.o \
+ xfs_dfrag.o \
+ xfs_log.o \
+ xfs_log_recover.o \
+ xfs_macros.o \
+ xfs_mount.o \
+ xfs_rename.o \
+ xfs_trans.o \
+ xfs_trans_ail.o \
+ xfs_trans_buf.o \
+ xfs_trans_extfree.o \
+ xfs_trans_inode.o \
+ xfs_trans_item.o \
+ xfs_utils.o \
+ xfs_vfsops.o \
+ xfs_vnodeops.o \
+ xfs_rw.o \
+ xfs_dmops.o \
+ xfs_qmops.o
+
+xfs-$(CONFIG_XFS_TRACE) += xfs_dir2_trace.o
+
+# Objects in linux/
+xfs-y += $(addprefix $(XFS_LINUX)/, \
+ kmem.o \
+ xfs_aops.o \
+ xfs_buf.o \
+ xfs_file.o \
+ xfs_fs_subr.o \
+ xfs_globals.o \
+ xfs_ioctl.o \
+ xfs_iops.o \
+ xfs_lrw.o \
+ xfs_super.o \
+ xfs_vfs.o \
+ xfs_vnode.o)
+
+# Objects in support/
+xfs-y += $(addprefix support/, \
+ debug.o \
+ move.o \
+ uuid.o)
+
+xfs-$(CONFIG_XFS_TRACE) += support/ktrace.o
+
void *
-kmem_alloc(size_t size, int flags)
+kmem_alloc(size_t size, unsigned int __nocast flags)
{
- int retries = 0;
- int lflags = kmem_flags_convert(flags);
- void *ptr;
+ int retries = 0;
+ unsigned int lflags = kmem_flags_convert(flags);
+ void *ptr;
do {
if (size < MAX_SLAB_SIZE || retries > MAX_VMALLOCS)
}
void *
-kmem_zalloc(size_t size, int flags)
+kmem_zalloc(size_t size, unsigned int __nocast flags)
{
void *ptr;
}
void *
-kmem_realloc(void *ptr, size_t newsize, size_t oldsize, int flags)
+kmem_realloc(void *ptr, size_t newsize, size_t oldsize,
+ unsigned int __nocast flags)
{
void *new;
}
void *
-kmem_zone_alloc(kmem_zone_t *zone, int flags)
+kmem_zone_alloc(kmem_zone_t *zone, unsigned int __nocast flags)
{
- int retries = 0;
- int lflags = kmem_flags_convert(flags);
- void *ptr;
+ int retries = 0;
+ unsigned int lflags = kmem_flags_convert(flags);
+ void *ptr;
do {
ptr = kmem_cache_alloc(zone, lflags);
}
void *
-kmem_zone_zalloc(kmem_zone_t *zone, int flags)
+kmem_zone_zalloc(kmem_zone_t *zone, unsigned int __nocast flags)
{
void *ptr;
/*
* memory management routines
*/
-#define KM_SLEEP 0x0001
-#define KM_NOSLEEP 0x0002
-#define KM_NOFS 0x0004
-#define KM_MAYFAIL 0x0008
+#define KM_SLEEP 0x0001u
+#define KM_NOSLEEP 0x0002u
+#define KM_NOFS 0x0004u
+#define KM_MAYFAIL 0x0008u
#define kmem_zone kmem_cache_s
#define kmem_zone_t kmem_cache_t
*(NSTATEP) = *(OSTATEP); \
} while (0)
-static __inline unsigned int kmem_flags_convert(int flags)
+static __inline unsigned int kmem_flags_convert(unsigned int __nocast flags)
{
- int lflags = __GFP_NOWARN; /* we'll report problems, if need be */
+ unsigned int lflags = __GFP_NOWARN; /* we'll report problems, if need be */
#ifdef DEBUG
if (unlikely(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL))) {
BUG();
}
-extern void *kmem_zone_zalloc(kmem_zone_t *, int);
-extern void *kmem_zone_alloc(kmem_zone_t *, int);
+extern void *kmem_zone_zalloc(kmem_zone_t *, unsigned int __nocast);
+extern void *kmem_zone_alloc(kmem_zone_t *, unsigned int __nocast);
-extern void *kmem_alloc(size_t, int);
-extern void *kmem_realloc(void *, size_t, size_t, int);
-extern void *kmem_zalloc(size_t, int);
+extern void *kmem_alloc(size_t, unsigned int __nocast);
+extern void *kmem_realloc(void *, size_t, size_t,
+ unsigned int __nocast);
+extern void *kmem_zalloc(size_t, unsigned int __nocast);
extern void kmem_free(void *, size_t);
typedef struct shrinker *kmem_shaker_t;
typedef spinlock_t lock_t;
#define SPLDECL(s) unsigned long s
+#ifndef DEFINE_SPINLOCK
+#define DEFINE_SPINLOCK(s) spinlock_t s = SPIN_LOCK_UNLOCKED
+#endif
#define spinlock_init(lock, name) spin_lock_init(lock)
#define spinlock_destroy(lock)
#define xfs_page_trace(tag, inode, page, mask)
#endif
-void
-linvfs_unwritten_done(
- struct buffer_head *bh,
- int uptodate)
+/*
+ * Schedule IO completion handling on a xfsdatad if this was
+ * the final hold on this ioend.
+ */
+STATIC void
+xfs_finish_ioend(
+ xfs_ioend_t *ioend)
{
- xfs_buf_t *pb = (xfs_buf_t *)bh->b_private;
+ if (atomic_dec_and_test(&ioend->io_remaining))
+ queue_work(xfsdatad_workqueue, &ioend->io_work);
+}
- ASSERT(buffer_unwritten(bh));
- bh->b_end_io = NULL;
- clear_buffer_unwritten(bh);
- if (!uptodate)
- pagebuf_ioerror(pb, EIO);
- if (atomic_dec_and_test(&pb->pb_io_remaining) == 1) {
- pagebuf_iodone(pb, 1, 1);
- }
- end_buffer_async_write(bh, uptodate);
+STATIC void
+xfs_destroy_ioend(
+ xfs_ioend_t *ioend)
+{
+ vn_iowake(ioend->io_vnode);
+ mempool_free(ioend, xfs_ioend_pool);
}
/*
* Issue transactions to convert a buffer range from unwritten
- * to written extents (buffered IO).
+ * to written extents.
*/
STATIC void
-linvfs_unwritten_convert(
- xfs_buf_t *bp)
+xfs_end_bio_unwritten(
+ void *data)
{
- vnode_t *vp = XFS_BUF_FSPRIVATE(bp, vnode_t *);
- int error;
+ xfs_ioend_t *ioend = data;
+ vnode_t *vp = ioend->io_vnode;
+ xfs_off_t offset = ioend->io_offset;
+ size_t size = ioend->io_size;
+ struct buffer_head *bh, *next;
+ int error;
+
+ if (ioend->io_uptodate)
+ VOP_BMAP(vp, offset, size, BMAPI_UNWRITTEN, NULL, NULL, error);
+
+ /* ioend->io_buffer_head is only non-NULL for buffered I/O */
+ for (bh = ioend->io_buffer_head; bh; bh = next) {
+ next = bh->b_private;
+
+ bh->b_end_io = NULL;
+ clear_buffer_unwritten(bh);
+ end_buffer_async_write(bh, ioend->io_uptodate);
+ }
- BUG_ON(atomic_read(&bp->pb_hold) < 1);
- VOP_BMAP(vp, XFS_BUF_OFFSET(bp), XFS_BUF_SIZE(bp),
- BMAPI_UNWRITTEN, NULL, NULL, error);
- XFS_BUF_SET_FSPRIVATE(bp, NULL);
- XFS_BUF_CLR_IODONE_FUNC(bp);
- XFS_BUF_UNDATAIO(bp);
- iput(LINVFS_GET_IP(vp));
- pagebuf_iodone(bp, 0, 0);
+ xfs_destroy_ioend(ioend);
}
/*
- * Issue transactions to convert a buffer range from unwritten
- * to written extents (direct IO).
+ * Allocate and initialise an IO completion structure.
+ * We need to track unwritten extent write completion here initially.
+ * We'll need to extend this for updating the ondisk inode size later
+ * (vs. incore size).
*/
-STATIC void
-linvfs_unwritten_convert_direct(
- struct kiocb *iocb,
- loff_t offset,
- ssize_t size,
- void *private)
+STATIC xfs_ioend_t *
+xfs_alloc_ioend(
+ struct inode *inode)
{
- struct inode *inode = iocb->ki_filp->f_dentry->d_inode;
- ASSERT(!private || inode == (struct inode *)private);
+ xfs_ioend_t *ioend;
- /* private indicates an unwritten extent lay beneath this IO */
- if (private && size > 0) {
- vnode_t *vp = LINVFS_GET_VP(inode);
- int error;
+ ioend = mempool_alloc(xfs_ioend_pool, GFP_NOFS);
- VOP_BMAP(vp, offset, size, BMAPI_UNWRITTEN, NULL, NULL, error);
- }
+ /*
+ * Set the count to 1 initially, which will prevent an I/O
+ * completion callback from happening before we have started
+ * all the I/O from calling the completion routine too early.
+ */
+ atomic_set(&ioend->io_remaining, 1);
+ ioend->io_uptodate = 1; /* cleared if any I/O fails */
+ ioend->io_vnode = LINVFS_GET_VP(inode);
+ ioend->io_buffer_head = NULL;
+ atomic_inc(&ioend->io_vnode->v_iocount);
+ ioend->io_offset = 0;
+ ioend->io_size = 0;
+
+ INIT_WORK(&ioend->io_work, xfs_end_bio_unwritten, ioend);
+
+ return ioend;
+}
+
+void
+linvfs_unwritten_done(
+ struct buffer_head *bh,
+ int uptodate)
+{
+ xfs_ioend_t *ioend = bh->b_private;
+ static spinlock_t unwritten_done_lock = SPIN_LOCK_UNLOCKED;
+ unsigned long flags;
+
+ ASSERT(buffer_unwritten(bh));
+ bh->b_end_io = NULL;
+
+ if (!uptodate)
+ ioend->io_uptodate = 0;
+
+ /*
+ * Deep magic here. We reuse b_private in the buffer_heads to build
+ * a chain for completing the I/O from user context after we've issued
+ * a transaction to convert the unwritten extent.
+ */
+ spin_lock_irqsave(&unwritten_done_lock, flags);
+ bh->b_private = ioend->io_buffer_head;
+ ioend->io_buffer_head = bh;
+ spin_unlock_irqrestore(&unwritten_done_lock, flags);
+
+ xfs_finish_ioend(ioend);
}
STATIC int
struct address_space *mapping,
pgoff_t index,
xfs_iomap_t *iomapp,
- xfs_buf_t *pb,
+ xfs_ioend_t *ioend,
unsigned long max_offset,
unsigned long *fsbs,
unsigned int bbits)
break;
xfs_map_at_offset(page, bh, p_offset, bbits, iomapp);
set_buffer_unwritten_io(bh);
- bh->b_private = pb;
+ bh->b_private = ioend;
p_offset += bh->b_size;
(*fsbs)++;
} while ((bh = bh->b_this_page) != head);
{
struct buffer_head *bh = curr;
xfs_iomap_t *tmp;
- xfs_buf_t *pb;
- loff_t offset, size;
+ xfs_ioend_t *ioend;
+ loff_t offset;
unsigned long nblocks = 0;
offset = start_page->index;
offset <<= PAGE_CACHE_SHIFT;
offset += p_offset;
- /* get an "empty" pagebuf to manage IO completion
- * Proper values will be set before returning */
- pb = pagebuf_lookup(iomapp->iomap_target, 0, 0, 0);
- if (!pb)
- return -EAGAIN;
-
- /* Take a reference to the inode to prevent it from
- * being reclaimed while we have outstanding unwritten
- * extent IO on it.
- */
- if ((igrab(inode)) != inode) {
- pagebuf_free(pb);
- return -EAGAIN;
- }
-
- /* Set the count to 1 initially, this will stop an I/O
- * completion callout which happens before we have started
- * all the I/O from calling pagebuf_iodone too early.
- */
- atomic_set(&pb->pb_io_remaining, 1);
+ ioend = xfs_alloc_ioend(inode);
/* First map forwards in the page consecutive buffers
* covering this unwritten extent
break;
xfs_map_at_offset(start_page, bh, p_offset, block_bits, iomapp);
set_buffer_unwritten_io(bh);
- bh->b_private = pb;
+ bh->b_private = ioend;
p_offset += bh->b_size;
nblocks++;
} while ((bh = bh->b_this_page) != head);
- atomic_add(nblocks, &pb->pb_io_remaining);
+ atomic_add(nblocks, &ioend->io_remaining);
/* If we reached the end of the page, map forwards in any
* following pages which are also covered by this extent.
tloff = min(tlast, tloff);
for (tindex = start_page->index + 1; tindex < tloff; tindex++) {
page = xfs_probe_unwritten_page(mapping,
- tindex, iomapp, pb,
+ tindex, iomapp, ioend,
PAGE_CACHE_SIZE, &bs, bbits);
if (!page)
break;
nblocks += bs;
- atomic_add(bs, &pb->pb_io_remaining);
- xfs_convert_page(inode, page, iomapp, wbc, pb,
+ atomic_add(bs, &ioend->io_remaining);
+ xfs_convert_page(inode, page, iomapp, wbc, ioend,
startio, all_bh);
/* stop if converting the next page might add
* enough blocks that the corresponding byte
if (tindex == tlast &&
(pg_offset = (i_size_read(inode) & (PAGE_CACHE_SIZE - 1)))) {
page = xfs_probe_unwritten_page(mapping,
- tindex, iomapp, pb,
+ tindex, iomapp, ioend,
pg_offset, &bs, bbits);
if (page) {
nblocks += bs;
- atomic_add(bs, &pb->pb_io_remaining);
- xfs_convert_page(inode, page, iomapp, wbc, pb,
+ atomic_add(bs, &ioend->io_remaining);
+ xfs_convert_page(inode, page, iomapp, wbc, ioend,
startio, all_bh);
if (nblocks >= ((ULONG_MAX - PAGE_SIZE) >> block_bits))
goto enough;
}
enough:
- size = nblocks; /* NB: using 64bit number here */
- size <<= block_bits; /* convert fsb's to byte range */
-
- XFS_BUF_DATAIO(pb);
- XFS_BUF_ASYNC(pb);
- XFS_BUF_SET_SIZE(pb, size);
- XFS_BUF_SET_COUNT(pb, size);
- XFS_BUF_SET_OFFSET(pb, offset);
- XFS_BUF_SET_FSPRIVATE(pb, LINVFS_GET_VP(inode));
- XFS_BUF_SET_IODONE_FUNC(pb, linvfs_unwritten_convert);
-
- if (atomic_dec_and_test(&pb->pb_io_remaining) == 1) {
- pagebuf_iodone(pb, 1, 1);
- }
-
+ ioend->io_size = (xfs_off_t)nblocks << block_bits;
+ ioend->io_offset = offset;
+ xfs_finish_ioend(ioend);
return 0;
}
continue;
if (!iomp) {
err = xfs_map_blocks(inode, offset, len, &iomap,
- BMAPI_READ|BMAPI_IGNSTATE);
+ BMAPI_WRITE|BMAPI_IGNSTATE);
if (err) {
goto error;
}
create, 1, BMAPI_WRITE|BMAPI_DIRECT);
}
+STATIC void
+linvfs_end_io_direct(
+ struct kiocb *iocb,
+ loff_t offset,
+ ssize_t size,
+ void *private)
+{
+ xfs_ioend_t *ioend = iocb->private;
+
+ /*
+ * Non-NULL private data means we need to issue a transaction to
+ * convert a range from unwritten to written extents. This needs
+ * to happen from process contect but aio+dio I/O completion
+ * happens from irq context so we need to defer it to a workqueue.
+ * This is not nessecary for synchronous direct I/O, but we do
+ * it anyway to keep the code uniform and simpler.
+ *
+ * The core direct I/O code might be changed to always call the
+ * completion handler in the future, in which case all this can
+ * go away.
+ */
+ if (private && size > 0) {
+ ioend->io_offset = offset;
+ ioend->io_size = size;
+ xfs_finish_ioend(ioend);
+ } else {
+ ASSERT(size >= 0);
+ xfs_destroy_ioend(ioend);
+ }
+
+ /*
+ * blockdev_direct_IO can return an error even afer the I/O
+ * completion handler was called. Thus we need to protect
+ * against double-freeing.
+ */
+ iocb->private = NULL;
+}
+
STATIC ssize_t
linvfs_direct_IO(
int rw,
xfs_iomap_t iomap;
int maps = 1;
int error;
+ ssize_t ret;
VOP_BMAP(vp, offset, 0, BMAPI_DEVICE, &iomap, &maps, error);
if (error)
return -error;
- return blockdev_direct_IO_own_locking(rw, iocb, inode,
+ iocb->private = xfs_alloc_ioend(inode);
+
+ ret = blockdev_direct_IO_own_locking(rw, iocb, inode,
iomap.iomap_target->pbr_bdev,
iov, offset, nr_segs,
linvfs_get_blocks_direct,
- linvfs_unwritten_convert_direct);
+ linvfs_end_io_direct);
+
+ if (unlikely(ret <= 0 && iocb->private))
+ xfs_destroy_ioend(iocb->private);
+ return ret;
}
return error;
}
+STATIC int
+linvfs_invalidate_page(
+ struct page *page,
+ unsigned long offset)
+{
+ xfs_page_trace(XFS_INVALIDPAGE_ENTER,
+ page->mapping->host, page, offset);
+ return block_invalidatepage(page, offset);
+}
+
/*
* Called to move a page into cleanable state - and from there
* to be released. Possibly the page is already clean. We always
.writepage = linvfs_writepage,
.sync_page = block_sync_page,
.releasepage = linvfs_release_page,
+ .invalidatepage = linvfs_invalidate_page,
.prepare_write = linvfs_prepare_write,
.commit_write = generic_commit_write,
.bmap = linvfs_bmap,
--- /dev/null
+/*
+ * Copyright (c) 2005 Silicon Graphics, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like. Any license provided herein, whether implied or
+ * otherwise, applies only to this software file. Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA 94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#ifndef __XFS_AOPS_H__
+#define __XFS_AOPS_H__
+
+extern struct workqueue_struct *xfsdatad_workqueue;
+extern mempool_t *xfs_ioend_pool;
+
+typedef void (*xfs_ioend_func_t)(void *);
+
+typedef struct xfs_ioend {
+ unsigned int io_uptodate; /* I/O status register */
+ atomic_t io_remaining; /* hold count */
+ struct vnode *io_vnode; /* file being written to */
+ struct buffer_head *io_buffer_head;/* buffer linked list head */
+ size_t io_size; /* size of the extent */
+ xfs_off_t io_offset; /* offset in the file */
+ struct work_struct io_work; /* xfsdatad work queue */
+} xfs_ioend_t;
+
+#endif /* __XFS_IOPS_H__ */
/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
#include <linux/percpu.h>
#include <linux/blkdev.h>
#include <linux/hash.h>
+#include <linux/kthread.h>
#include "xfs_linux.h"
STATIC void pagebuf_delwri_queue(xfs_buf_t *, int);
STATIC struct workqueue_struct *xfslogd_workqueue;
-STATIC struct workqueue_struct *xfsdatad_workqueue;
+struct workqueue_struct *xfsdatad_workqueue;
/*
* Pagebuf debugging
PB_SET_OWNER(pb);
}
- if (pb->pb_flags & PBF_STALE)
+ if (pb->pb_flags & PBF_STALE) {
+ ASSERT((pb->pb_flags & _PBF_DELWRI_Q) == 0);
pb->pb_flags &= PBF_MAPPED;
+ }
PB_TRACE(pb, "got_lock", 0);
XFS_STATS_INC(pb_get_locked);
return (pb);
return NULL;
}
-/*
- * Create a skeletal pagebuf (no pages associated with it).
- */
-xfs_buf_t *
-pagebuf_lookup(
- xfs_buftarg_t *target,
- loff_t ioff,
- size_t isize,
- page_buf_flags_t flags)
-{
- xfs_buf_t *pb;
-
- pb = pagebuf_allocate(flags);
- if (pb) {
- _pagebuf_initialize(pb, target, ioff, isize, flags);
- }
- return pb;
-}
-
/*
* If we are not low on memory then do the readahead in a deadlock
* safe manner.
do_free = 0;
}
- if (pb->pb_flags & PBF_DELWRI) {
- pb->pb_flags |= PBF_ASYNC;
- atomic_inc(&pb->pb_hold);
- pagebuf_delwri_queue(pb, 0);
- do_free = 0;
- } else if (pb->pb_flags & PBF_FS_MANAGED) {
+ if (pb->pb_flags & PBF_FS_MANAGED) {
do_free = 0;
}
if (do_free) {
+ ASSERT((pb->pb_flags & (PBF_DELWRI|_PBF_DELWRI_Q)) == 0);
list_del_init(&pb->pb_hash_list);
spin_unlock(&hash->bh_lock);
pagebuf_free(pb);
} else {
spin_unlock(&hash->bh_lock);
}
+ } else {
+ /*
+ * Catch reference count leaks
+ */
+ ASSERT(atomic_read(&pb->pb_hold) >= 0);
}
}
* pagebuf_unlock
*
* pagebuf_unlock releases the lock on the buffer object created by
- * pagebuf_lock or pagebuf_cond_lock (not any
- * pinning of underlying pages created by pagebuf_pin).
+ * pagebuf_lock or pagebuf_cond_lock (not any pinning of underlying pages
+ * created by pagebuf_pin).
+ *
+ * If the buffer is marked delwri but is not queued, do so before we
+ * unlock the buffer as we need to set flags correctly. We also need to
+ * take a reference for the delwri queue because the unlocker is going to
+ * drop their's and they don't know we just queued it.
*/
void
pagebuf_unlock( /* unlock buffer */
xfs_buf_t *pb) /* buffer to unlock */
{
+ if ((pb->pb_flags & (PBF_DELWRI|_PBF_DELWRI_Q)) == PBF_DELWRI) {
+ atomic_inc(&pb->pb_hold);
+ pb->pb_flags |= PBF_ASYNC;
+ pagebuf_delwri_queue(pb, 0);
+ }
+
PB_CLEAR_OWNER(pb);
up(&pb->pb_sema);
PB_TRACE(pb, "unlock", 0);
int error)
{
xfs_buf_t *pb = (xfs_buf_t *)bio->bi_private;
- unsigned int i, blocksize = pb->pb_target->pbr_bsize;
- struct bio_vec *bvec = bio->bi_io_vec;
+ unsigned int blocksize = pb->pb_target->pbr_bsize;
+ struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
if (bio->bi_size)
return 1;
if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
pb->pb_error = EIO;
- for (i = 0; i < bio->bi_vcnt; i++, bvec++) {
+ do {
struct page *page = bvec->bv_page;
- if (pb->pb_error) {
+ if (unlikely(pb->pb_error)) {
+ if (pb->pb_flags & PBF_READ)
+ ClearPageUptodate(page);
SetPageError(page);
} else if (blocksize == PAGE_CACHE_SIZE) {
SetPageUptodate(page);
set_page_region(page, bvec->bv_offset, bvec->bv_len);
}
+ if (--bvec >= bio->bi_io_vec)
+ prefetchw(&bvec->bv_page->flags);
+
if (_pagebuf_iolocked(pb)) {
unlock_page(page);
}
- }
+ } while (bvec >= bio->bi_io_vec);
_pagebuf_iodone(pb, 1);
bio_put(bio);
ASSERT(btp == bp->pb_target);
if (!(bp->pb_flags & PBF_FS_MANAGED)) {
spin_unlock(&hash->bh_lock);
+ /*
+ * Catch superblock reference count leaks
+ * immediately
+ */
+ BUG_ON(bp->pb_bn == 0);
delay(100);
goto again;
}
int unlock)
{
PB_TRACE(pb, "delwri_q", (long)unlock);
- ASSERT(pb->pb_flags & PBF_DELWRI);
+ ASSERT((pb->pb_flags & (PBF_DELWRI|PBF_ASYNC)) ==
+ (PBF_DELWRI|PBF_ASYNC));
spin_lock(&pbd_delwrite_lock);
/* If already in the queue, dequeue and place at tail */
if (!list_empty(&pb->pb_list)) {
+ ASSERT(pb->pb_flags & _PBF_DELWRI_Q);
if (unlock) {
atomic_dec(&pb->pb_hold);
}
list_del(&pb->pb_list);
}
+ pb->pb_flags |= _PBF_DELWRI_Q;
list_add_tail(&pb->pb_list, &pbd_delwrite_queue);
pb->pb_queuetime = jiffies;
spin_unlock(&pbd_delwrite_lock);
spin_lock(&pbd_delwrite_lock);
if ((pb->pb_flags & PBF_DELWRI) && !list_empty(&pb->pb_list)) {
+ ASSERT(pb->pb_flags & _PBF_DELWRI_Q);
list_del_init(&pb->pb_list);
dequeued = 1;
}
- pb->pb_flags &= ~PBF_DELWRI;
+ pb->pb_flags &= ~(PBF_DELWRI|_PBF_DELWRI_Q);
spin_unlock(&pbd_delwrite_lock);
if (dequeued)
}
/* Defines for pagebuf daemon */
-STATIC DECLARE_COMPLETION(xfsbufd_done);
STATIC struct task_struct *xfsbufd_task;
-STATIC int xfsbufd_active;
STATIC int xfsbufd_force_flush;
STATIC int xfsbufd_force_sleep;
xfs_buftarg_t *target;
xfs_buf_t *pb, *n;
- /* Set up the thread */
- daemonize("xfsbufd");
current->flags |= PF_MEMALLOC;
- xfsbufd_task = current;
- xfsbufd_active = 1;
- barrier();
-
INIT_LIST_HEAD(&tmp);
do {
if (unlikely(freezing(current))) {
break;
}
- pb->pb_flags &= ~PBF_DELWRI;
+ pb->pb_flags &= ~(PBF_DELWRI|_PBF_DELWRI_Q);
pb->pb_flags |= PBF_WRITE;
list_move(&pb->pb_list, &tmp);
}
purge_addresses();
xfsbufd_force_flush = 0;
- } while (xfsbufd_active);
+ } while (!kthread_should_stop());
- complete_and_exit(&xfsbufd_done, 0);
+ return 0;
}
/*
if (pb->pb_target != target)
continue;
- ASSERT(pb->pb_flags & PBF_DELWRI);
+ ASSERT(pb->pb_flags & (PBF_DELWRI|_PBF_DELWRI_Q));
PB_TRACE(pb, "walkq2", (long)pagebuf_ispin(pb));
if (pagebuf_ispin(pb)) {
pincount++;
continue;
}
- pb->pb_flags &= ~PBF_DELWRI;
- pb->pb_flags |= PBF_WRITE;
list_move(&pb->pb_list, &tmp);
}
spin_unlock(&pbd_delwrite_lock);
* Dropped the delayed write list lock, now walk the temporary list
*/
list_for_each_entry_safe(pb, n, &tmp, pb_list) {
+ pagebuf_lock(pb);
+ pb->pb_flags &= ~(PBF_DELWRI|_PBF_DELWRI_Q);
+ pb->pb_flags |= PBF_WRITE;
if (wait)
pb->pb_flags &= ~PBF_ASYNC;
else
list_del_init(&pb->pb_list);
- pagebuf_lock(pb);
pagebuf_iostrategy(pb);
}
if (!xfsdatad_workqueue)
goto out_destroy_xfslogd_workqueue;
- error = kernel_thread(xfsbufd, NULL, CLONE_FS|CLONE_FILES);
- if (error < 0)
+ xfsbufd_task = kthread_run(xfsbufd, NULL, "xfsbufd");
+ if (IS_ERR(xfsbufd_task)) {
+ error = PTR_ERR(xfsbufd_task);
goto out_destroy_xfsdatad_workqueue;
+ }
return 0;
out_destroy_xfsdatad_workqueue:
STATIC void
xfs_buf_daemons_stop(void)
{
- xfsbufd_active = 0;
- barrier();
- wait_for_completion(&xfsbufd_done);
-
+ kthread_stop(xfsbufd_task);
destroy_workqueue(xfslogd_workqueue);
destroy_workqueue(xfsdatad_workqueue);
}
_PBF_PAGE_CACHE = (1 << 17),/* backed by pagecache */
_PBF_KMEM_ALLOC = (1 << 18),/* backed by kmem_alloc() */
_PBF_RUN_QUEUES = (1 << 19),/* run block device task queue */
+ _PBF_DELWRI_Q = (1 << 21), /* buffer on delwri queue */
} page_buf_flags_t;
#define PBF_UPDATE (PBF_READ | PBF_WRITE)
#define xfs_buf_read(target, blkno, len, flags) \
xfs_buf_read_flags((target), (blkno), (len), PBF_LOCK | PBF_MAPPED)
-extern xfs_buf_t *pagebuf_lookup(
- xfs_buftarg_t *,
- loff_t, /* starting offset of range */
- size_t, /* length of range */
- page_buf_flags_t); /* PBF_READ, PBF_WRITE, */
- /* PBF_FORCEIO, */
-
extern xfs_buf_t *pagebuf_get_empty( /* allocate pagebuf struct with */
/* no memory or disk address */
size_t len,
-
-
/* These are just for xfs_syncsub... it sets an internal variable
* then passes it to VOP_FLUSH_PAGES or adds the flags to a newly gotten buf_t
*/
#define XFS_BUF_PTR(bp) (xfs_caddr_t)((bp)->pb_addr)
-extern inline xfs_caddr_t xfs_buf_offset(xfs_buf_t *bp, size_t offset)
+static inline xfs_caddr_t xfs_buf_offset(xfs_buf_t *bp, size_t offset)
{
if (bp->pb_flags & PBF_MAPPED)
return XFS_BUF_PTR(bp) + offset;
#define nextdp(dp) ((struct xfs_dirent *)((char *)(dp) + (dp)->d_reclen))
+#ifdef CONFIG_XFS_DMAPI
+
+STATIC struct page *
+linvfs_filemap_nopage(
+ struct vm_area_struct *area,
+ unsigned long address,
+ int *type)
+{
+ struct inode *inode = area->vm_file->f_dentry->d_inode;
+ vnode_t *vp = LINVFS_GET_VP(inode);
+ xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp);
+ int error;
+
+ ASSERT_ALWAYS(vp->v_vfsp->vfs_flag & VFS_DMI);
+
+ error = XFS_SEND_MMAP(mp, area, 0);
+ if (error)
+ return NULL;
+
+ return filemap_nopage(area, address, type);
+}
+
+#endif /* CONFIG_XFS_DMAPI */
+
+
STATIC int
linvfs_readdir(
struct file *filp,
return -error;
}
-#ifdef CONFIG_XFS_DMAPI
-STATIC void
-linvfs_mmap_close(
- struct vm_area_struct *vma)
-{
- xfs_dm_mm_put(vma);
-}
-#endif /* CONFIG_XFS_DMAPI */
STATIC int
linvfs_file_mmap(
vma->vm_ops = &linvfs_file_vm_ops;
- if (vp->v_vfsp->vfs_flag & VFS_DMI) {
- xfs_mount_t *mp = XFS_VFSTOM(vp->v_vfsp);
-
- error = -XFS_SEND_MMAP(mp, vma, 0);
- if (error)
- return error;
#ifdef CONFIG_XFS_DMAPI
+ if (vp->v_vfsp->vfs_flag & VFS_DMI) {
vma->vm_ops = &linvfs_dmapi_file_vm_ops;
-#endif
}
+#endif /* CONFIG_XFS_DMAPI */
VOP_SETATTR(vp, &va, XFS_AT_UPDATIME, NULL, error);
if (!error)
return error;
}
+#ifdef CONFIG_XFS_DMAPI
#ifdef HAVE_VMOP_MPROTECT
STATIC int
linvfs_mprotect(
return error;
}
#endif /* HAVE_VMOP_MPROTECT */
+#endif /* CONFIG_XFS_DMAPI */
#ifdef HAVE_FOP_OPEN_EXEC
/* If the user is attempting to execute a file that is offline then
}
#endif /* HAVE_FOP_OPEN_EXEC */
-/*
- * Temporary workaround to the AIO direct IO write problem.
- * This code can go and we can revert to do_sync_write once
- * the writepage(s) rework is merged.
- */
-STATIC ssize_t
-linvfs_write(
- struct file *filp,
- const char __user *buf,
- size_t len,
- loff_t *ppos)
-{
- struct kiocb kiocb;
- ssize_t ret;
-
- init_sync_kiocb(&kiocb, filp);
- kiocb.ki_pos = *ppos;
- ret = __linvfs_write(&kiocb, buf, 0, len, kiocb.ki_pos);
- *ppos = kiocb.ki_pos;
- return ret;
-}
-STATIC ssize_t
-linvfs_write_invis(
- struct file *filp,
- const char __user *buf,
- size_t len,
- loff_t *ppos)
-{
- struct kiocb kiocb;
- ssize_t ret;
-
- init_sync_kiocb(&kiocb, filp);
- kiocb.ki_pos = *ppos;
- ret = __linvfs_write(&kiocb, buf, IO_INVIS, len, kiocb.ki_pos);
- *ppos = kiocb.ki_pos;
- return ret;
-}
-
-
struct file_operations linvfs_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
- .write = linvfs_write,
+ .write = do_sync_write,
.readv = linvfs_readv,
.writev = linvfs_writev,
.aio_read = linvfs_aio_read,
struct file_operations linvfs_invis_file_operations = {
.llseek = generic_file_llseek,
.read = do_sync_read,
- .write = linvfs_write_invis,
+ .write = do_sync_write,
.readv = linvfs_readv_invis,
.writev = linvfs_writev_invis,
.aio_read = linvfs_aio_read_invis,
#ifdef CONFIG_XFS_DMAPI
static struct vm_operations_struct linvfs_dmapi_file_vm_ops = {
- .close = linvfs_mmap_close,
- .nopage = filemap_nopage,
+ .nopage = linvfs_filemap_nopage,
.populate = filemap_populate,
#ifdef HAVE_VMOP_MPROTECT
.mprotect = linvfs_mprotect,
return -XFS_ERROR(EINVAL);
}
- /* we need the vnode */
- vp = LINVFS_GET_VP(inode);
- if (vp->v_type != VREG && vp->v_type != VDIR && vp->v_type != VLNK) {
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFREG:
+ case S_IFDIR:
+ case S_IFLNK:
+ break;
+ default:
iput(inode);
return -XFS_ERROR(EBADF);
}
+ /* we need the vnode */
+ vp = LINVFS_GET_VP(inode);
+
/* now we can grab the fsid */
memcpy(&handle.ha_fsid, vp->v_vfsp->vfs_altfsid, sizeof(xfs_fsid_t));
hsize = sizeof(xfs_fsid_t);
return -error;
/* Restrict this handle operation to symlinks only. */
- if (vp->v_type != VLNK) {
+ if (!S_ISLNK(inode->i_mode)) {
VN_RELE(vp);
return -XFS_ERROR(EINVAL);
}
if (vp->v_inode.i_flags & (S_IMMUTABLE|S_APPEND))
return -XFS_ERROR(EPERM);
- if (!(filp->f_flags & FMODE_WRITE))
+ if (!(filp->f_mode & FMODE_WRITE))
return -XFS_ERROR(EBADF);
- if (vp->v_type != VREG)
+ if (!VN_ISREG(vp))
return -XFS_ERROR(EINVAL);
if (copy_from_user(&bf, arg, sizeof(bf)))
#include "xfs_vnode.h"
#include "xfs_dfrag.h"
+#define _NATIVE_IOC(cmd, type) \
+ _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type))
+
#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
#define BROKEN_X86_ALIGNMENT
+/* on ia32 l_start is on a 32-bit boundary */
+typedef struct xfs_flock64_32 {
+ __s16 l_type;
+ __s16 l_whence;
+ __s64 l_start __attribute__((packed));
+ /* len == 0 means until end of file */
+ __s64 l_len __attribute__((packed));
+ __s32 l_sysid;
+ __u32 l_pid;
+ __s32 l_pad[4]; /* reserve area */
+} xfs_flock64_32_t;
+
+#define XFS_IOC_ALLOCSP_32 _IOW ('X', 10, struct xfs_flock64_32)
+#define XFS_IOC_FREESP_32 _IOW ('X', 11, struct xfs_flock64_32)
+#define XFS_IOC_ALLOCSP64_32 _IOW ('X', 36, struct xfs_flock64_32)
+#define XFS_IOC_FREESP64_32 _IOW ('X', 37, struct xfs_flock64_32)
+#define XFS_IOC_RESVSP_32 _IOW ('X', 40, struct xfs_flock64_32)
+#define XFS_IOC_UNRESVSP_32 _IOW ('X', 41, struct xfs_flock64_32)
+#define XFS_IOC_RESVSP64_32 _IOW ('X', 42, struct xfs_flock64_32)
+#define XFS_IOC_UNRESVSP64_32 _IOW ('X', 43, struct xfs_flock64_32)
+
+/* just account for different alignment */
+STATIC unsigned long
+xfs_ioctl32_flock(
+ unsigned long arg)
+{
+ xfs_flock64_32_t __user *p32 = (void __user *)arg;
+ xfs_flock64_t __user *p = compat_alloc_user_space(sizeof(*p));
+
+ if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) ||
+ copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) ||
+ copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) ||
+ copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
+ copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
+ copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
+ copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
+ return -EFAULT;
+
+ return (unsigned long)p;
+}
+
#else
typedef struct xfs_fsop_bulkreq32 {
/* not handled
case XFS_IOC_FD_TO_HANDLE:
case XFS_IOC_PATH_TO_HANDLE:
- case XFS_IOC_PATH_TO_HANDLE:
case XFS_IOC_PATH_TO_FSHANDLE:
case XFS_IOC_OPEN_BY_HANDLE:
case XFS_IOC_FSSETDM_BY_HANDLE:
case XFS_IOC_ERROR_CLEARALL:
break;
-#ifndef BROKEN_X86_ALIGNMENT
- /* xfs_flock_t and xfs_bstat_t have wrong u32 vs u64 alignment */
+#ifdef BROKEN_X86_ALIGNMENT
+ /* xfs_flock_t has wrong u32 vs u64 alignment */
+ case XFS_IOC_ALLOCSP_32:
+ case XFS_IOC_FREESP_32:
+ case XFS_IOC_ALLOCSP64_32:
+ case XFS_IOC_FREESP64_32:
+ case XFS_IOC_RESVSP_32:
+ case XFS_IOC_UNRESVSP_32:
+ case XFS_IOC_RESVSP64_32:
+ case XFS_IOC_UNRESVSP64_32:
+ arg = xfs_ioctl32_flock(arg);
+ cmd = _NATIVE_IOC(cmd, struct xfs_flock64);
+ break;
+
+#else /* These are handled fine if no alignment issues */
case XFS_IOC_ALLOCSP:
case XFS_IOC_FREESP:
case XFS_IOC_RESVSP:
case XFS_IOC_FREESP64:
case XFS_IOC_RESVSP64:
case XFS_IOC_UNRESVSP64:
+ break;
+
+ /* xfs_bstat_t still has wrong u32 vs u64 alignment */
case XFS_IOC_SWAPEXT:
break;
memset(&va, 0, sizeof(va));
va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
- va.va_type = IFTOVT(mode);
va.va_mode = mode;
switch (mode & S_IFMT) {
cvp = NULL;
memset(&va, 0, sizeof(va));
- va.va_type = VLNK;
- va.va_mode = irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO;
+ va.va_mode = S_IFLNK |
+ (irix_symlink_mode ? 0777 & ~current->fs->umask : S_IRWXUGO);
va.va_mask = XFS_AT_TYPE|XFS_AT_MODE;
error = 0;
VOP_SYMLINK(dvp, dentry, &va, (char *)symname, &cvp, NULL, error);
if (!error && cvp) {
- ASSERT(cvp->v_type == VLNK);
ip = LINVFS_GET_IP(cvp);
d_instantiate(dentry, ip);
validate_fields(dir);
return NULL;
}
-static void linvfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
+STATIC void
+linvfs_put_link(
+ struct dentry *dentry,
+ struct nameidata *nd,
+ void *p)
{
- char *s = nd_get_link(nd);
+ char *s = nd_get_link(nd);
+
if (!IS_ERR(s))
kfree(s);
}
#include <sema.h>
#include <time.h>
-#include <support/qsort.h>
#include <support/ktrace.h>
#include <support/debug.h>
#include <support/move.h>
#include <xfs_stats.h>
#include <xfs_sysctl.h>
#include <xfs_iops.h>
+#include <xfs_aops.h>
#include <xfs_super.h>
#include <xfs_globals.h>
#include <xfs_fs_subr.h>
#define MAX(a,b) (max(a,b))
#define howmany(x, y) (((x)+((y)-1))/(y))
#define roundup(x, y) ((((x)+((y)-1))/(y))*(y))
+#define qsort(a,n,s,fn) sort(a,n,s,fn,NULL)
+/*
+ * Various platform dependent calls that don't fit anywhere else
+ */
#define xfs_stack_trace() dump_stack()
-
#define xfs_itruncate_data(ip, off) \
(-vmtruncate(LINVFS_GET_IP(XFS_ITOV(ip)), (off)))
+#define xfs_statvfs_fsid(statp, mp) \
+ ({ u64 id = huge_encode_dev((mp)->m_dev); \
+ __kernel_fsid_t *fsid = &(statp)->f_fsid; \
+ (fsid->val[0] = (u32)id, fsid->val[1] = (u32)(id >> 32)); })
/* Move the kernel do_div definition off to one side */
return(x * y);
}
-#define qsort(a, n, s, cmp) sort(a, n, s, cmp, NULL)
-
#endif /* __XFS_LINUX__ */
(xip->i_d.di_flags & XFS_DIFLAG_REALTIME) ?
mp->m_rtdev_targp : mp->m_ddev_targp;
- if (ioflags & IO_ISAIO)
- return XFS_ERROR(-ENOSYS);
-
if ((pos & target->pbr_smask) || (count & target->pbr_smask))
return XFS_ERROR(-EINVAL);
#define XFS_SENDFILE_ENTER 21
#define XFS_WRITEPAGE_ENTER 22
#define XFS_RELEASEPAGE_ENTER 23
-#define XFS_IOMAP_ALLOC_ENTER 24
-#define XFS_IOMAP_ALLOC_MAP 25
-#define XFS_IOMAP_UNWRITTEN 26
+#define XFS_INVALIDPAGE_ENTER 24
+#define XFS_IOMAP_ALLOC_ENTER 25
+#define XFS_IOMAP_ALLOC_MAP 26
+#define XFS_IOMAP_UNWRITTEN 27
extern void xfs_rw_enter_trace(int, struct xfs_iocore *,
void *, size_t, loff_t, int);
extern void xfs_inval_cached_trace(struct xfs_iocore *,
#include <linux/namei.h>
#include <linux/init.h>
#include <linux/mount.h>
+#include <linux/mempool.h>
#include <linux/writeback.h>
+#include <linux/kthread.h>
STATIC struct quotactl_ops linvfs_qops;
STATIC struct super_operations linvfs_sops;
-STATIC kmem_zone_t *linvfs_inode_zone;
+STATIC kmem_zone_t *xfs_vnode_zone;
+STATIC kmem_zone_t *xfs_ioend_zone;
+mempool_t *xfs_ioend_pool;
STATIC struct xfs_mount_args *
xfs_args_allocate(
xfs_set_inodeops(
struct inode *inode)
{
- vnode_t *vp = LINVFS_GET_VP(inode);
-
- if (vp->v_type == VNON) {
- vn_mark_bad(vp);
- } else if (S_ISREG(inode->i_mode)) {
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFREG:
inode->i_op = &linvfs_file_inode_operations;
inode->i_fop = &linvfs_file_operations;
inode->i_mapping->a_ops = &linvfs_aops;
- } else if (S_ISDIR(inode->i_mode)) {
+ break;
+ case S_IFDIR:
inode->i_op = &linvfs_dir_inode_operations;
inode->i_fop = &linvfs_dir_operations;
- } else if (S_ISLNK(inode->i_mode)) {
+ break;
+ case S_IFLNK:
inode->i_op = &linvfs_symlink_inode_operations;
if (inode->i_blocks)
inode->i_mapping->a_ops = &linvfs_aops;
- } else {
+ break;
+ default:
inode->i_op = &linvfs_file_inode_operations;
init_special_inode(inode, inode->i_mode, inode->i_rdev);
+ break;
}
}
{
struct inode *inode = LINVFS_GET_IP(vp);
- inode->i_mode = (ip->i_d.di_mode & MODEMASK) | VTTOIF(vp->v_type);
+ inode->i_mode = ip->i_d.di_mode;
inode->i_nlink = ip->i_d.di_nlink;
inode->i_uid = ip->i_d.di_uid;
inode->i_gid = ip->i_d.di_gid;
- if (((1 << vp->v_type) & ((1<<VBLK) | (1<<VCHR))) == 0) {
+
+ switch (inode->i_mode & S_IFMT) {
+ case S_IFBLK:
+ case S_IFCHR:
+ inode->i_rdev =
+ MKDEV(sysv_major(ip->i_df.if_u2.if_rdev) & 0x1ff,
+ sysv_minor(ip->i_df.if_u2.if_rdev));
+ break;
+ default:
inode->i_rdev = 0;
- } else {
- xfs_dev_t dev = ip->i_df.if_u2.if_rdev;
- inode->i_rdev = MKDEV(sysv_major(dev) & 0x1ff, sysv_minor(dev));
+ break;
}
+
inode->i_blksize = PAGE_CACHE_SIZE;
inode->i_generation = ip->i_d.di_gen;
i_size_write(inode, ip->i_d.di_size);
* finish our work.
*/
if (ip->i_d.di_mode != 0 && unlock && (inode->i_state & I_NEW)) {
- vp->v_type = IFTOVT(ip->i_d.di_mode);
xfs_revalidate_inode(XFS_BHVTOM(bdp), vp, ip);
xfs_set_inodeops(inode);
{
vnode_t *vp;
- vp = (vnode_t *)kmem_cache_alloc(linvfs_inode_zone,
- kmem_flags_convert(KM_SLEEP));
+ vp = kmem_cache_alloc(xfs_vnode_zone, kmem_flags_convert(KM_SLEEP));
if (!vp)
return NULL;
return LINVFS_GET_IP(vp);
linvfs_destroy_inode(
struct inode *inode)
{
- kmem_cache_free(linvfs_inode_zone, LINVFS_GET_VP(inode));
+ kmem_zone_free(xfs_vnode_zone, LINVFS_GET_VP(inode));
}
STATIC void
-init_once(
+linvfs_inode_init_once(
void *data,
kmem_cache_t *cachep,
unsigned long flags)
}
STATIC int
-init_inodecache( void )
+linvfs_init_zones(void)
{
- linvfs_inode_zone = kmem_cache_create("linvfs_icache",
+ xfs_vnode_zone = kmem_cache_create("xfs_vnode",
sizeof(vnode_t), 0, SLAB_RECLAIM_ACCOUNT,
- init_once, NULL);
- if (linvfs_inode_zone == NULL)
- return -ENOMEM;
+ linvfs_inode_init_once, NULL);
+ if (!xfs_vnode_zone)
+ goto out;
+
+ xfs_ioend_zone = kmem_zone_init(sizeof(xfs_ioend_t), "xfs_ioend");
+ if (!xfs_ioend_zone)
+ goto out_destroy_vnode_zone;
+
+ xfs_ioend_pool = mempool_create(4 * MAX_BUF_PER_PAGE,
+ mempool_alloc_slab, mempool_free_slab,
+ xfs_ioend_zone);
+ if (!xfs_ioend_pool)
+ goto out_free_ioend_zone;
+
return 0;
+
+
+ out_free_ioend_zone:
+ kmem_zone_destroy(xfs_ioend_zone);
+ out_destroy_vnode_zone:
+ kmem_zone_destroy(xfs_vnode_zone);
+ out:
+ return -ENOMEM;
}
STATIC void
-destroy_inodecache( void )
+linvfs_destroy_zones(void)
{
- if (kmem_cache_destroy(linvfs_inode_zone))
- printk(KERN_WARNING "%s: cache still in use!\n", __FUNCTION__);
+ mempool_destroy(xfs_ioend_pool);
+ kmem_zone_destroy(xfs_vnode_zone);
+ kmem_zone_destroy(xfs_ioend_zone);
}
/*
struct inode *inode)
{
vnode_t *vp = LINVFS_GET_VP(inode);
+ int error, cache;
- if (vp) {
- vn_rele(vp);
- vn_trace_entry(vp, __FUNCTION__, (inst_t *)__return_address);
- /*
- * Do all our cleanup, and remove this vnode.
- */
- vn_remove(vp);
+ vn_trace_entry(vp, "clear_inode", (inst_t *)__return_address);
+
+ XFS_STATS_INC(vn_rele);
+ XFS_STATS_INC(vn_remove);
+ XFS_STATS_INC(vn_reclaim);
+ XFS_STATS_DEC(vn_active);
+
+ /*
+ * This can happen because xfs_iget_core calls xfs_idestroy if we
+ * find an inode with di_mode == 0 but without IGET_CREATE set.
+ */
+ if (vp->v_fbhv)
+ VOP_INACTIVE(vp, NULL, cache);
+
+ VN_LOCK(vp);
+ vp->v_flag &= ~VMODIFIED;
+ VN_UNLOCK(vp, 0);
+
+ if (vp->v_fbhv) {
+ VOP_RECLAIM(vp, error);
+ if (error)
+ panic("vn_purge: cannot reclaim");
}
-}
+ ASSERT(vp->v_fbhv == NULL);
+
+#ifdef XFS_VNODE_TRACE
+ ktrace_free(vp->v_trace);
+#endif
+}
/*
* Enqueue a work item to be picked up by the vfs xfssyncd thread.
{
long timeleft;
vfs_t *vfsp = (vfs_t *) arg;
- struct list_head tmp;
struct vfs_sync_work *work, *n;
+ LIST_HEAD (tmp);
- daemonize("xfssyncd");
-
- vfsp->vfs_sync_work.w_vfs = vfsp;
- vfsp->vfs_sync_work.w_syncer = vfs_sync_worker;
- vfsp->vfs_sync_task = current;
- wmb();
- wake_up(&vfsp->vfs_wait_sync_task);
-
- INIT_LIST_HEAD(&tmp);
timeleft = (xfs_syncd_centisecs * HZ) / 100;
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
timeleft = schedule_timeout(timeleft);
/* swsusp */
try_to_freeze();
- if (vfsp->vfs_flag & VFS_UMOUNT)
+ if (kthread_should_stop())
break;
spin_lock(&vfsp->vfs_sync_lock);
}
}
- vfsp->vfs_sync_task = NULL;
- wmb();
- wake_up(&vfsp->vfs_wait_sync_task);
-
return 0;
}
linvfs_start_syncd(
vfs_t *vfsp)
{
- int pid;
-
- pid = kernel_thread(xfssyncd, (void *) vfsp,
- CLONE_VM | CLONE_FS | CLONE_FILES);
- if (pid < 0)
- return -pid;
- wait_event(vfsp->vfs_wait_sync_task, vfsp->vfs_sync_task);
+ vfsp->vfs_sync_work.w_syncer = vfs_sync_worker;
+ vfsp->vfs_sync_work.w_vfs = vfsp;
+ vfsp->vfs_sync_task = kthread_run(xfssyncd, vfsp, "xfssyncd");
+ if (IS_ERR(vfsp->vfs_sync_task))
+ return -PTR_ERR(vfsp->vfs_sync_task);
return 0;
}
linvfs_stop_syncd(
vfs_t *vfsp)
{
- vfsp->vfs_flag |= VFS_UMOUNT;
- wmb();
-
- wake_up_process(vfsp->vfs_sync_task);
- wait_event(vfsp->vfs_wait_sync_task, !vfsp->vfs_sync_task);
+ kthread_stop(vfsp->vfs_sync_task);
}
STATIC void
ktrace_init(64);
- error = init_inodecache();
+ error = linvfs_init_zones();
if (error < 0)
- goto undo_inodecache;
+ goto undo_zones;
error = pagebuf_init();
if (error < 0)
pagebuf_terminate();
undo_pagebuf:
- destroy_inodecache();
+ linvfs_destroy_zones();
-undo_inodecache:
+undo_zones:
return error;
}
unregister_filesystem(&xfs_fs_type);
xfs_cleanup();
pagebuf_terminate();
- destroy_inodecache();
+ linvfs_destroy_zones();
ktrace_uninit();
}
bhv_head_init(VFS_BHVHEAD(vfsp), "vfs");
INIT_LIST_HEAD(&vfsp->vfs_sync_list);
spin_lock_init(&vfsp->vfs_sync_lock);
- init_waitqueue_head(&vfsp->vfs_wait_sync_task);
init_waitqueue_head(&vfsp->vfs_wait_single_sync_task);
return vfsp;
}
spinlock_t vfs_sync_lock; /* work item list lock */
int vfs_sync_seq; /* sync thread generation no. */
wait_queue_head_t vfs_wait_single_sync_task;
- wait_queue_head_t vfs_wait_sync_task;
} vfs_t;
#define vfs_fbhv vfs_bh.bh_first /* 1st on vfs behavior chain */
#define VFS_RDONLY 0x0001 /* read-only vfs */
#define VFS_GRPID 0x0002 /* group-ID assigned from directory */
#define VFS_DMI 0x0004 /* filesystem has the DMI enabled */
-#define VFS_UMOUNT 0x0008 /* unmount in progress */
#define VFS_END 0x0008 /* max flag */
#define SYNC_ATTR 0x0001 /* sync attributes */
*/
#define NVSYNC 37
#define vptosync(v) (&vsync[((unsigned long)v) % NVSYNC])
-sv_t vsync[NVSYNC];
-
-/*
- * Translate stat(2) file types to vnode types and vice versa.
- * Aware of numeric order of S_IFMT and vnode type values.
- */
-enum vtype iftovt_tab[] = {
- VNON, VFIFO, VCHR, VNON, VDIR, VNON, VBLK, VNON,
- VREG, VNON, VLNK, VNON, VSOCK, VNON, VNON, VNON
-};
-
-u_short vttoif_tab[] = {
- 0, S_IFREG, S_IFDIR, S_IFBLK, S_IFCHR, S_IFLNK, S_IFIFO, 0, S_IFSOCK
-};
+STATIC wait_queue_head_t vsync[NVSYNC];
void
vn_init(void)
{
- register sv_t *svp;
- register int i;
+ int i;
- for (svp = vsync, i = 0; i < NVSYNC; i++, svp++)
- init_sv(svp, SV_DEFAULT, "vsy", i);
+ for (i = 0; i < NVSYNC; i++)
+ init_waitqueue_head(&vsync[i]);
}
-/*
- * Clean a vnode of filesystem-specific data and prepare it for reuse.
- */
-STATIC int
-vn_reclaim(
+void
+vn_iowait(
struct vnode *vp)
{
- int error;
+ wait_queue_head_t *wq = vptosync(vp);
- XFS_STATS_INC(vn_reclaim);
- vn_trace_entry(vp, "vn_reclaim", (inst_t *)__return_address);
-
- /*
- * Only make the VOP_RECLAIM call if there are behaviors
- * to call.
- */
- if (vp->v_fbhv) {
- VOP_RECLAIM(vp, error);
- if (error)
- return -error;
- }
- ASSERT(vp->v_fbhv == NULL);
-
- VN_LOCK(vp);
- vp->v_flag &= (VRECLM|VWAIT);
- VN_UNLOCK(vp, 0);
-
- vp->v_type = VNON;
- vp->v_fbhv = NULL;
-
-#ifdef XFS_VNODE_TRACE
- ktrace_free(vp->v_trace);
- vp->v_trace = NULL;
-#endif
-
- return 0;
-}
-
-STATIC void
-vn_wakeup(
- struct vnode *vp)
-{
- VN_LOCK(vp);
- if (vp->v_flag & VWAIT)
- sv_broadcast(vptosync(vp));
- vp->v_flag &= ~(VRECLM|VWAIT|VMODIFIED);
- VN_UNLOCK(vp, 0);
+ wait_event(*wq, (atomic_read(&vp->v_iocount) == 0));
}
-int
-vn_wait(
+void
+vn_iowake(
struct vnode *vp)
{
- VN_LOCK(vp);
- if (vp->v_flag & (VINACT | VRECLM)) {
- vp->v_flag |= VWAIT;
- sv_wait(vptosync(vp), PINOD, &vp->v_lock, 0);
- return 1;
- }
- VN_UNLOCK(vp, 0);
- return 0;
+ if (atomic_dec_and_test(&vp->v_iocount))
+ wake_up(vptosync(vp));
}
struct vnode *
/* Initialize the first behavior and the behavior chain head. */
vn_bhv_head_init(VN_BHV_HEAD(vp), "vnode");
+ atomic_set(&vp->v_iocount, 0);
+
#ifdef XFS_VNODE_TRACE
vp->v_trace = ktrace_alloc(VNODE_TRACE_SIZE, KM_SLEEP);
#endif /* XFS_VNODE_TRACE */
return vp;
}
-/*
- * Get a reference on a vnode.
- */
-vnode_t *
-vn_get(
- struct vnode *vp,
- vmap_t *vmap)
-{
- struct inode *inode;
-
- XFS_STATS_INC(vn_get);
- inode = LINVFS_GET_IP(vp);
- if (inode->i_state & I_FREEING)
- return NULL;
-
- inode = ilookup(vmap->v_vfsp->vfs_super, vmap->v_ino);
- if (!inode) /* Inode not present */
- return NULL;
-
- vn_trace_exit(vp, "vn_get", (inst_t *)__return_address);
-
- return vp;
-}
-
/*
* Revalidate the Linux inode from the vattr.
* Note: i_size _not_ updated; we must hold the inode
{
struct inode *inode = LINVFS_GET_IP(vp);
- inode->i_mode = VTTOIF(vap->va_type) | vap->va_mode;
+ inode->i_mode = vap->va_mode;
inode->i_nlink = vap->va_nlink;
inode->i_uid = vap->va_uid;
inode->i_gid = vap->va_gid;
return -error;
}
-/*
- * purge a vnode from the cache
- * At this point the vnode is guaranteed to have no references (vn_count == 0)
- * The caller has to make sure that there are no ways someone could
- * get a handle (via vn_get) on the vnode (usually done via a mount/vfs lock).
- */
-void
-vn_purge(
- struct vnode *vp,
- vmap_t *vmap)
-{
- vn_trace_entry(vp, "vn_purge", (inst_t *)__return_address);
-
-again:
- /*
- * Check whether vp has already been reclaimed since our caller
- * sampled its version while holding a filesystem cache lock that
- * its VOP_RECLAIM function acquires.
- */
- VN_LOCK(vp);
- if (vp->v_number != vmap->v_number) {
- VN_UNLOCK(vp, 0);
- return;
- }
-
- /*
- * If vp is being reclaimed or inactivated, wait until it is inert,
- * then proceed. Can't assume that vnode is actually reclaimed
- * just because the reclaimed flag is asserted -- a vn_alloc
- * reclaim can fail.
- */
- if (vp->v_flag & (VINACT | VRECLM)) {
- ASSERT(vn_count(vp) == 0);
- vp->v_flag |= VWAIT;
- sv_wait(vptosync(vp), PINOD, &vp->v_lock, 0);
- goto again;
- }
-
- /*
- * Another process could have raced in and gotten this vnode...
- */
- if (vn_count(vp) > 0) {
- VN_UNLOCK(vp, 0);
- return;
- }
-
- XFS_STATS_DEC(vn_active);
- vp->v_flag |= VRECLM;
- VN_UNLOCK(vp, 0);
-
- /*
- * Call VOP_RECLAIM and clean vp. The FSYNC_INVAL flag tells
- * vp's filesystem to flush and invalidate all cached resources.
- * When vn_reclaim returns, vp should have no private data,
- * either in a system cache or attached to v_data.
- */
- if (vn_reclaim(vp) != 0)
- panic("vn_purge: cannot reclaim");
-
- /*
- * Wakeup anyone waiting for vp to be reclaimed.
- */
- vn_wakeup(vp);
-}
-
/*
* Add a reference to a referenced vnode.
*/
return vp;
}
-/*
- * Call VOP_INACTIVE on last reference.
- */
-void
-vn_rele(
- struct vnode *vp)
-{
- int vcnt;
- int cache;
-
- XFS_STATS_INC(vn_rele);
-
- VN_LOCK(vp);
-
- vn_trace_entry(vp, "vn_rele", (inst_t *)__return_address);
- vcnt = vn_count(vp);
-
- /*
- * Since we always get called from put_inode we know
- * that i_count won't be decremented after we
- * return.
- */
- if (!vcnt) {
- /*
- * As soon as we turn this on, noone can find us in vn_get
- * until we turn off VINACT or VRECLM
- */
- vp->v_flag |= VINACT;
- VN_UNLOCK(vp, 0);
-
- /*
- * Do not make the VOP_INACTIVE call if there
- * are no behaviors attached to the vnode to call.
- */
- if (vp->v_fbhv)
- VOP_INACTIVE(vp, NULL, cache);
-
- VN_LOCK(vp);
- if (vp->v_flag & VWAIT)
- sv_broadcast(vptosync(vp));
-
- vp->v_flag &= ~(VINACT|VWAIT|VRECLM|VMODIFIED);
- }
-
- VN_UNLOCK(vp, 0);
-
- vn_trace_exit(vp, "vn_rele", (inst_t *)__return_address);
-}
-
-/*
- * Finish the removal of a vnode.
- */
-void
-vn_remove(
- struct vnode *vp)
-{
- vmap_t vmap;
-
- /* Make sure we don't do this to the same vnode twice */
- if (!(vp->v_fbhv))
- return;
-
- XFS_STATS_INC(vn_remove);
- vn_trace_exit(vp, "vn_remove", (inst_t *)__return_address);
-
- /*
- * After the following purge the vnode
- * will no longer exist.
- */
- VMAP(vp, vmap);
- vn_purge(vp, &vmap);
-}
-
-
#ifdef XFS_VNODE_TRACE
#define KTRACE_ENTER(vp, vk, s, line, ra) \
/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
struct xfs_iomap;
struct attrlist_cursor_kern;
-/*
- * Vnode types. VNON means no type.
- */
-enum vtype { VNON, VREG, VDIR, VBLK, VCHR, VLNK, VFIFO, VBAD, VSOCK };
typedef xfs_ino_t vnumber_t;
typedef struct dentry vname_t;
/*
* MP locking protocols:
* v_flag, v_vfsp VN_LOCK/VN_UNLOCK
- * v_type read-only or fs-dependent
*/
typedef struct vnode {
__u32 v_flag; /* vnode flags (see below) */
- enum vtype v_type; /* vnode type */
struct vfs *v_vfsp; /* ptr to containing VFS */
vnumber_t v_number; /* in-core vnode number */
vn_bhv_head_t v_bh; /* behavior head */
spinlock_t v_lock; /* VN_LOCK/VN_UNLOCK */
+ atomic_t v_iocount; /* outstanding I/O count */
#ifdef XFS_VNODE_TRACE
struct ktrace *v_trace; /* trace header structure */
#endif
/* inode MUST be last */
} vnode_t;
+#define VN_ISLNK(vp) S_ISLNK((vp)->v_inode.i_mode)
+#define VN_ISREG(vp) S_ISREG((vp)->v_inode.i_mode)
+#define VN_ISDIR(vp) S_ISDIR((vp)->v_inode.i_mode)
+#define VN_ISCHR(vp) S_ISCHR((vp)->v_inode.i_mode)
+#define VN_ISBLK(vp) S_ISBLK((vp)->v_inode.i_mode)
+
#define v_fbhv v_bh.bh_first /* first behavior */
#define v_fops v_bh.bh_first->bd_ops /* first behavior ops */
#define LINVFS_GET_VP(inode) ((vnode_t *)list_entry(inode, vnode_t, v_inode))
#define LINVFS_GET_IP(vp) (&(vp)->v_inode)
-/*
- * Convert between vnode types and inode formats (since POSIX.1
- * defines mode word of stat structure in terms of inode formats).
- */
-extern enum vtype iftovt_tab[];
-extern u_short vttoif_tab[];
-#define IFTOVT(mode) (iftovt_tab[((mode) & S_IFMT) >> 12])
-#define VTTOIF(indx) (vttoif_tab[(int)(indx)])
-#define MAKEIMODE(indx, mode) (int)(VTTOIF(indx) | (mode))
-
-
/*
* Vnode flags.
*/
-#define VINACT 0x1 /* vnode is being inactivated */
-#define VRECLM 0x2 /* vnode is being reclaimed */
-#define VWAIT 0x4 /* waiting for VINACT/VRECLM to end */
#define VMODIFIED 0x8 /* XFS inode state possibly differs */
/* to the Linux inode state. */
*/
typedef struct vattr {
int va_mask; /* bit-mask of attributes present */
- enum vtype va_type; /* vnode type (for create) */
mode_t va_mode; /* file access mode and type */
xfs_nlink_t va_nlink; /* number of references to file */
uid_t va_uid; /* owner user id */
* Check whether mandatory file locking is enabled.
*/
#define MANDLOCK(vp, mode) \
- ((vp)->v_type == VREG && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
+ (VN_ISREG(vp) && ((mode) & (VSGID|(VEXEC>>3))) == VSGID)
extern void vn_init(void);
-extern int vn_wait(struct vnode *);
extern vnode_t *vn_initialize(struct inode *);
-/*
- * Acquiring and invalidating vnodes:
- *
- * if (vn_get(vp, version, 0))
- * ...;
- * vn_purge(vp, version);
- *
- * vn_get and vn_purge must be called with vmap_t arguments, sampled
- * while a lock that the vnode's VOP_RECLAIM function acquires is
- * held, to ensure that the vnode sampled with the lock held isn't
- * recycled (VOP_RECLAIMed) or deallocated between the release of the lock
- * and the subsequent vn_get or vn_purge.
- */
-
/*
* vnode_map structures _must_ match vn_epoch and vnode structure sizes.
*/
(vmap).v_number = (vp)->v_number, \
(vmap).v_ino = (vp)->v_inode.i_ino; }
-extern void vn_purge(struct vnode *, vmap_t *);
-extern vnode_t *vn_get(struct vnode *, vmap_t *);
extern int vn_revalidate(struct vnode *);
extern void vn_revalidate_core(struct vnode *, vattr_t *);
-extern void vn_remove(struct vnode *);
+
+extern void vn_iowait(struct vnode *vp);
+extern void vn_iowake(struct vnode *vp);
static inline int vn_count(struct vnode *vp)
{
* Vnode reference counting functions (and macros for compatibility).
*/
extern vnode_t *vn_hold(struct vnode *);
-extern void vn_rele(struct vnode *);
#if defined(XFS_VNODE_TRACE)
#define VN_HOLD(vp) \
#define VN_RELE(vp) (iput(LINVFS_GET_IP(vp)))
#endif
+static inline struct vnode *vn_grab(struct vnode *vp)
+{
+ struct inode *inode = igrab(LINVFS_GET_IP(vp));
+ return inode ? LINVFS_GET_VP(inode) : NULL;
+}
+
/*
* Vname handling macros.
*/
--- /dev/null
+include $(TOPDIR)/fs/xfs/quota/Makefile-linux-$(VERSION).$(PATCHLEVEL)
--- /dev/null
+#
+# Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of version 2 of the GNU General Public License as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it would be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
+# Further, this software is distributed without any warranty that it is
+# free of the rightful claim of any third person regarding infringement
+# or the like. Any license provided herein, whether implied or
+# otherwise, applies only to this software file. Patent licenses, if
+# any, provided herein do not apply to combinations of this program with
+# other software, or any other product whatsoever.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write the Free Software Foundation, Inc., 59
+# Temple Place - Suite 330, Boston MA 02111-1307, USA.
+#
+# Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+# Mountain View, CA 94043, or:
+#
+# http://www.sgi.com
+#
+# For further information regarding this notice, see:
+#
+# http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+#
+
+EXTRA_CFLAGS += -I $(TOPDIR)/fs/xfs -I $(TOPDIR)/fs/xfs/linux-2.6
+
+ifeq ($(CONFIG_XFS_DEBUG),y)
+ EXTRA_CFLAGS += -g -DDEBUG
+ #EXTRA_CFLAGS += -DQUOTADEBUG
+endif
+ifeq ($(CONFIG_XFS_TRACE),y)
+ EXTRA_CFLAGS += -DXFS_DQUOT_TRACE
+ EXTRA_CFLAGS += -DXFS_VNODE_TRACE
+endif
+
+obj-$(CONFIG_XFS_QUOTA) += xfs_quota.o
+
+xfs_quota-y += xfs_dquot.o \
+ xfs_dquot_item.o \
+ xfs_trans_dquot.o \
+ xfs_qm_syscalls.o \
+ xfs_qm_bhv.o \
+ xfs_qm.o
+
+xfs_quota-$(CONFIG_PROC_FS) += xfs_qm_stats.o
*/
STATIC int
xfs_qm_dqalloc(
- xfs_trans_t *tp,
+ xfs_trans_t **tpp,
xfs_mount_t *mp,
xfs_dquot_t *dqp,
xfs_inode_t *quotip,
xfs_bmbt_irec_t map;
int nmaps, error, committed;
xfs_buf_t *bp;
+ xfs_trans_t *tp = *tpp;
ASSERT(tp != NULL);
xfs_dqtrace_entry(dqp, "DQALLOC");
xfs_qm_init_dquot_blk(tp, mp, INT_GET(dqp->q_core.d_id, ARCH_CONVERT),
dqp->dq_flags & XFS_DQ_ALLTYPES, bp);
- if ((error = xfs_bmap_finish(&tp, &flist, firstblock, &committed))) {
+ /*
+ * xfs_bmap_finish() may commit the current transaction and
+ * start a second transaction if the freelist is not empty.
+ *
+ * Since we still want to modify this buffer, we need to
+ * ensure that the buffer is not released on commit of
+ * the first transaction and ensure the buffer is added to the
+ * second transaction.
+ *
+ * If there is only one transaction then don't stop the buffer
+ * from being released when it commits later on.
+ */
+
+ xfs_trans_bhold(tp, bp);
+
+ if ((error = xfs_bmap_finish(tpp, &flist, firstblock, &committed))) {
goto error1;
}
+ if (committed) {
+ tp = *tpp;
+ xfs_trans_bjoin(tp, bp);
+ } else {
+ xfs_trans_bhold_release(tp, bp);
+ }
+
*O_bpp = bp;
return 0;
*/
STATIC int
xfs_qm_dqtobp(
- xfs_trans_t *tp,
+ xfs_trans_t **tpp,
xfs_dquot_t *dqp,
xfs_disk_dquot_t **O_ddpp,
xfs_buf_t **O_bpp,
xfs_disk_dquot_t *ddq;
xfs_dqid_t id;
boolean_t newdquot;
+ xfs_trans_t *tp = (tpp ? *tpp : NULL);
mp = dqp->q_mount;
id = INT_GET(dqp->q_core.d_id, ARCH_CONVERT);
return (ENOENT);
ASSERT(tp);
- if ((error = xfs_qm_dqalloc(tp, mp, dqp, quotip,
+ if ((error = xfs_qm_dqalloc(tpp, mp, dqp, quotip,
dqp->q_fileoffset, &bp)))
return (error);
+ tp = *tpp;
newdquot = B_TRUE;
} else {
/*
/* ARGSUSED */
STATIC int
xfs_qm_dqread(
- xfs_trans_t *tp,
+ xfs_trans_t **tpp,
xfs_dqid_t id,
xfs_dquot_t *dqp, /* dquot to get filled in */
uint flags)
xfs_disk_dquot_t *ddqp;
xfs_buf_t *bp;
int error;
+ xfs_trans_t *tp;
+
+ ASSERT(tpp);
/*
* get a pointer to the on-disk dquot and the buffer containing it
* dqp already knows its own type (GROUP/USER).
*/
xfs_dqtrace_entry(dqp, "DQREAD");
- if ((error = xfs_qm_dqtobp(tp, dqp, &ddqp, &bp, flags))) {
+ if ((error = xfs_qm_dqtobp(tpp, dqp, &ddqp, &bp, flags))) {
return (error);
}
+ tp = *tpp;
/* copy everything from disk dquot to the incore dquot */
memcpy(&dqp->q_core, ddqp, sizeof(xfs_disk_dquot_t));
* Read it from disk; xfs_dqread() takes care of
* all the necessary initialization of dquot's fields (locks, etc)
*/
- if ((error = xfs_qm_dqread(tp, id, dqp, flags))) {
+ if ((error = xfs_qm_dqread(&tp, id, dqp, flags))) {
/*
* This can happen if quotas got turned off (ESRCH),
* or if the dquot didn't exist on disk and we ask to
/*
- * Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
#define XFS_DQHOLD(dqp) ((dqp)->q_nrefs++)
-/*
- * Quota Accounting/Enforcement flags
- */
-#define XFS_ALL_QUOTA_ACCT \
- (XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT)
-#define XFS_ALL_QUOTA_ENFD (XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD)
-#define XFS_ALL_QUOTA_CHKD (XFS_UQUOTA_CHKD | XFS_OQUOTA_CHKD)
-
-#define XFS_IS_QUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
-#define XFS_IS_QUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ENFD)
-#define XFS_IS_UQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT)
-#define XFS_IS_PQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_PQUOTA_ACCT)
-#define XFS_IS_GQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)
-
#ifdef DEBUG
static inline int
XFS_DQ_IS_LOCKED(xfs_dquot_t *dqp)
log_vector->i_addr = (xfs_caddr_t)&(qf->qql_format);
log_vector->i_len = sizeof(xfs_qoff_logitem_t);
+ XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_QUOTAOFF);
qf->qql_format.qf_size = 1;
}
/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
int error = 0;
uint sbf;
- /*
- * If a file system had quotas running earlier, but decided to
- * mount without -o uquota/pquota/gquota options, revoke the
- * quotachecked license, and bail out.
- */
- if (! XFS_IS_QUOTA_ON(mp) &&
- (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT)) {
- mp->m_qflags = 0;
- goto write_changes;
- }
/*
* If quotas on realtime volumes is not supported, we disable
goto write_changes;
}
-#if defined(DEBUG) && defined(XFS_LOUD_RECOVERY)
- cmn_err(CE_NOTE, "Attempting to turn on disk quotas.");
-#endif
-
ASSERT(XFS_IS_QUOTA_RUNNING(mp));
+
/*
* Allocate the quotainfo structure inside the mount struct, and
* create quotainode(s), and change/rev superblock if necessary.
*/
if (XFS_QM_NEED_QUOTACHECK(mp) &&
!(mfsi_flags & XFS_MFSI_NO_QUOTACHECK)) {
-#ifdef DEBUG
- cmn_err(CE_NOTE, "Doing a quotacheck. Please wait.");
-#endif
if ((error = xfs_qm_quotacheck(mp))) {
/* Quotacheck has failed and quotas have
* been disabled.
*/
return XFS_ERROR(error);
}
-#ifdef DEBUG
- cmn_err(CE_NOTE, "Done quotacheck.");
-#endif
}
+
write_changes:
/*
* We actually don't have to acquire the SB_LOCK at all.
ASSERT(mp->m_quotainfo != NULL);
ASSERT(xfs_Gqm != NULL);
xfs_qm_destroy_quotainfo(mp);
- xfs_mount_reset_sbqflags(mp);
+ (void)xfs_mount_reset_sbqflags(mp);
} else {
cmn_err(CE_NOTE, "XFS quotacheck %s: Done.", mp->m_fsname);
}
#define XFS_QM_HOLD(xqm) ((xqm)->qm_nrefs++)
#define XFS_QM_RELE(xqm) ((xqm)->qm_nrefs--)
-extern void xfs_mount_reset_sbqflags(xfs_mount_t *);
-
extern void xfs_qm_destroy_quotainfo(xfs_mount_t *);
extern int xfs_qm_mount_quotas(xfs_mount_t *, int);
extern void xfs_qm_mount_quotainit(xfs_mount_t *, uint);
/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
return error;
}
-/*
- * Clear the quotaflags in memory and in the superblock.
- */
-void
-xfs_mount_reset_sbqflags(
- xfs_mount_t *mp)
-{
- xfs_trans_t *tp;
- unsigned long s;
-
- mp->m_qflags = 0;
- /*
- * It is OK to look at sb_qflags here in mount path,
- * without SB_LOCK.
- */
- if (mp->m_sb.sb_qflags == 0)
- return;
- s = XFS_SB_LOCK(mp);
- mp->m_sb.sb_qflags = 0;
- XFS_SB_UNLOCK(mp, s);
-
- /*
- * if the fs is readonly, let the incore superblock run
- * with quotas off but don't flush the update out to disk
- */
- if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
- return;
-#ifdef QUOTADEBUG
- xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes");
-#endif
- tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
- if (xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
- XFS_DEFAULT_LOG_COUNT)) {
- xfs_trans_cancel(tp, 0);
- xfs_fs_cmn_err(CE_ALERT, mp,
- "xfs_mount_reset_sbqflags: Superblock update failed!");
- return;
- }
- xfs_mod_sb(tp, XFS_SB_QFLAGS);
- xfs_trans_commit(tp, 0, NULL);
-}
-
STATIC int
xfs_qm_newmount(
xfs_mount_t *mp,
struct xfs_mount *mp,
uint flags)
{
- vmap_t vmap;
xfs_inode_t *ip, *topino;
uint ireclaims;
vnode_t *vp;
ASSERT(mp->m_quotainfo);
-again:
XFS_MOUNT_ILOCK(mp);
+again:
ip = mp->m_inodes;
if (ip == NULL) {
XFS_MOUNT_IUNLOCK(mp);
}
vnode_refd = B_FALSE;
if (xfs_ilock_nowait(ip, XFS_ILOCK_EXCL) == 0) {
- /*
- * Sample vp mapping while holding the mplock, lest
- * we come across a non-existent vnode.
- */
- VMAP(vp, vmap);
ireclaims = mp->m_ireclaims;
topino = mp->m_inodes;
- XFS_MOUNT_IUNLOCK(mp);
+ vp = vn_grab(vp);
+ if (!vp)
+ goto again;
+ XFS_MOUNT_IUNLOCK(mp);
/* XXX restart limit ? */
- if ( ! (vp = vn_get(vp, &vmap)))
- goto again;
xfs_ilock(ip, XFS_ILOCK_EXCL);
vnode_refd = B_TRUE;
} else {
*/
if (topino != mp->m_inodes || mp->m_ireclaims != ireclaims) {
/* XXX use a sentinel */
- XFS_MOUNT_IUNLOCK(mp);
goto again;
}
ip = ip->i_mnext;
*/
#include "debug.h"
+#include "spin.h"
#include <asm/page.h>
#include <linux/sched.h>
{
int error;
- if (vp->v_type != VDIR)
+ if (!VN_ISDIR(vp))
return 0;
xfs_acl_get_attr(vp, NULL, _ACL_TYPE_DEFAULT, ATTR_KERNOVAL, &error);
return (error == 0);
if (vp->v_inode.i_flags & (S_IMMUTABLE|S_APPEND))
return EPERM;
- if (kind == _ACL_TYPE_DEFAULT && vp->v_type != VDIR)
+ if (kind == _ACL_TYPE_DEFAULT && !VN_ISDIR(vp))
return ENOTDIR;
if (vp->v_vfsp->vfs_flag & VFS_RDONLY)
return EROFS;
* If the new file is a directory, its default ACL is a copy of
* the containing directory's default ACL.
*/
- if (vp->v_type == VDIR)
+ if (VN_ISDIR(vp))
xfs_acl_set_attr(vp, pdaclp, _ACL_TYPE_DEFAULT, &error);
if (!error && !basicperms)
xfs_acl_set_attr(vp, cacl, _ACL_TYPE_ACCESS, &error);
error = xfs_mod_incore_sb(mp,
XFS_SBS_FDBLOCKS,
-(alen), rsvd);
- if (!error)
+ if (!error) {
error = xfs_mod_incore_sb(mp,
XFS_SBS_FDBLOCKS,
-(indlen), rsvd);
+ if (error && rt) {
+ xfs_mod_incore_sb(ip->i_mount,
+ XFS_SBS_FREXTENTS,
+ extsz, rsvd);
+ } else if (error) {
+ xfs_mod_incore_sb(ip->i_mount,
+ XFS_SBS_FDBLOCKS,
+ alen, rsvd);
+ }
+ }
if (error) {
if (XFS_IS_QUOTA_ON(ip->i_mount))
((bip->bli_format.blf_map_size - 1) * sizeof(uint)));
vecp->i_addr = (xfs_caddr_t)&bip->bli_format;
vecp->i_len = base_size;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BFORMAT);
vecp++;
nvecs = 1;
buffer_offset = first_bit * XFS_BLI_CHUNK;
vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
vecp->i_len = nbits * XFS_BLI_CHUNK;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
nvecs++;
break;
} else if (next_bit != last_bit + 1) {
buffer_offset = first_bit * XFS_BLI_CHUNK;
vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
vecp->i_len = nbits * XFS_BLI_CHUNK;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
nvecs++;
vecp++;
first_bit = next_bit;
buffer_offset = first_bit * XFS_BLI_CHUNK;
vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
vecp->i_len = nbits * XFS_BLI_CHUNK;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_BCHUNK);
/* You would think we need to bump the nvecs here too, but we do not
* this number is used by recovery, and it gets confused by the boundary
* split here
/*
- * Copyright (c) 2000-2004 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
log_vector->i_addr = (xfs_caddr_t)&(efip->efi_format);
log_vector->i_len = size;
+ XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_EFI_FORMAT);
ASSERT(size >= sizeof(xfs_efi_log_format_t));
}
log_vector->i_addr = (xfs_caddr_t)&(efdp->efd_format);
log_vector->i_len = size;
+ XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_EFD_FORMAT);
ASSERT(size >= sizeof(xfs_efd_log_format_t));
}
* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
*/
+#include <linux/delay.h>
+
#include "xfs.h"
#include "xfs_macros.h"
vnode_t *vp = NULL;
int error;
-retry:
XFS_STATS_INC(xs_ig_attempts);
+retry:
if ((inode = iget_locked(XFS_MTOVFS(mp)->vfs_super, ino))) {
bhv_desc_t *bdp;
xfs_inode_t *ip;
- int newnode;
vp = LINVFS_GET_VP(inode);
if (inode->i_state & I_NEW) {
-inode_allocate:
vn_initialize(inode);
error = xfs_iget_core(vp, mp, tp, ino, flags,
lock_flags, ipp, bno);
iput(inode);
}
} else {
- /* These are true if the inode is in inactive or
- * reclaim. The linux inode is about to go away,
- * wait for that path to finish, and try again.
+ /*
+ * If the inode is not fully constructed due to
+ * filehandle mistmatches wait for the inode to go
+ * away and try again.
+ *
+ * iget_locked will call __wait_on_freeing_inode
+ * to wait for the inode to go away.
*/
- if (vp->v_flag & (VINACT | VRECLM)) {
- vn_wait(vp);
+ if (is_bad_inode(inode) ||
+ ((bdp = vn_bhv_lookup(VN_BHV_HEAD(vp),
+ &xfs_vnodeops)) == NULL)) {
iput(inode);
+ delay(1);
goto retry;
}
- if (is_bad_inode(inode)) {
- iput(inode);
- return EIO;
- }
-
- bdp = vn_bhv_lookup(VN_BHV_HEAD(vp), &xfs_vnodeops);
- if (bdp == NULL) {
- XFS_STATS_INC(xs_ig_dup);
- goto inode_allocate;
- }
ip = XFS_BHVTOI(bdp);
if (lock_flags != 0)
xfs_ilock(ip, lock_flags);
- newnode = (ip->i_d.di_mode == 0);
- if (newnode)
- xfs_iocore_inode_reinit(ip);
XFS_STATS_INC(xs_ig_found);
*ipp = ip;
error = 0;
ASSERT(ip != NULL);
vp = XFS_ITOV(ip);
- vp->v_type = IFTOVT(mode);
ip->i_d.di_mode = (__uint16_t)mode;
ip->i_d.di_onlink = 0;
ip->i_d.di_nlink = nlink;
*/
xfs_trans_log_inode(tp, ip, flags);
- /* now that we have a v_type we can set Linux inode ops (& unlock) */
+ /* now that we have an i_mode we can set Linux inode ops (& unlock) */
VFS_INIT_VNODE(XFS_MTOVFS(tp->t_mountp), vp, XFS_ITOBHV(ip), 1);
*ipp = ip;
vecp->i_addr = (xfs_caddr_t)&iip->ili_format;
vecp->i_len = sizeof(xfs_inode_log_format_t);
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IFORMAT);
vecp++;
nvecs = 1;
vecp->i_addr = (xfs_caddr_t)&ip->i_d;
vecp->i_len = sizeof(xfs_dinode_core_t);
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ICORE);
vecp++;
nvecs++;
iip->ili_format.ilf_fields |= XFS_ILOG_CORE;
vecp->i_addr =
(char *)(ip->i_df.if_u1.if_extents);
vecp->i_len = ip->i_df.if_bytes;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT);
} else
#endif
{
vecp->i_addr = (xfs_caddr_t)ext_buffer;
vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
XFS_DATA_FORK);
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IEXT);
}
ASSERT(vecp->i_len <= ip->i_df.if_bytes);
iip->ili_format.ilf_dsize = vecp->i_len;
ASSERT(ip->i_df.if_broot != NULL);
vecp->i_addr = (xfs_caddr_t)ip->i_df.if_broot;
vecp->i_len = ip->i_df.if_broot_bytes;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IBROOT);
vecp++;
nvecs++;
iip->ili_format.ilf_dsize = ip->i_df.if_broot_bytes;
ASSERT((ip->i_df.if_real_bytes == 0) ||
(ip->i_df.if_real_bytes == data_bytes));
vecp->i_len = (int)data_bytes;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_ILOCAL);
vecp++;
nvecs++;
iip->ili_format.ilf_dsize = (unsigned)data_bytes;
vecp->i_len = xfs_iextents_copy(ip, ext_buffer,
XFS_ATTR_FORK);
#endif
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_EXT);
iip->ili_format.ilf_asize = vecp->i_len;
vecp++;
nvecs++;
ASSERT(ip->i_afp->if_broot != NULL);
vecp->i_addr = (xfs_caddr_t)ip->i_afp->if_broot;
vecp->i_len = ip->i_afp->if_broot_bytes;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_BROOT);
vecp++;
nvecs++;
iip->ili_format.ilf_asize = ip->i_afp->if_broot_bytes;
ASSERT((ip->i_afp->if_real_bytes == 0) ||
(ip->i_afp->if_real_bytes == data_bytes));
vecp->i_len = (int)data_bytes;
+ XLOG_VEC_SET_TYPE(vecp, XLOG_REG_TYPE_IATTR_LOCAL);
vecp++;
nvecs++;
iip->ili_format.ilf_asize = (unsigned)data_bytes;
xfs_iomap_enter_trace(XFS_IOMAP_READ_ENTER, io, offset, count);
lockmode = XFS_LCK_MAP_SHARED(mp, io);
bmapi_flags = XFS_BMAPI_ENTIRE;
- if (flags & BMAPI_IGNSTATE)
- bmapi_flags |= XFS_BMAPI_IGSTATE;
break;
case BMAPI_WRITE:
xfs_iomap_enter_trace(XFS_IOMAP_WRITE_ENTER, io, offset, count);
lockmode = XFS_ILOCK_EXCL|XFS_EXTSIZE_WR;
- bmapi_flags = 0;
+ if (flags & BMAPI_IGNSTATE)
+ bmapi_flags |= XFS_BMAPI_IGSTATE|XFS_BMAPI_ENTIRE;
XFS_ILOCK(mp, io, lockmode);
break;
case BMAPI_ALLOCATE:
xfs_bmbt_irec_t imap[XFS_WRITE_IMAPS], *imapp;
xfs_bmap_free_t free_list;
int aeof;
- xfs_filblks_t datablocks, qblocks, resblks;
+ xfs_filblks_t qblocks, resblks;
int committed;
- int numrtextents;
+ int resrtextents;
/*
* Make sure that the dquots are there. This doesn't hold
if (!(extsz = ip->i_d.di_extsize))
extsz = mp->m_sb.sb_rextsize;
- numrtextents = qblocks = (count_fsb + extsz - 1);
- do_div(numrtextents, mp->m_sb.sb_rextsize);
+ resrtextents = qblocks = (count_fsb + extsz - 1);
+ do_div(resrtextents, mp->m_sb.sb_rextsize);
+ resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
quota_flag = XFS_QMOPT_RES_RTBLKS;
- datablocks = 0;
} else {
- datablocks = qblocks = count_fsb;
+ resrtextents = 0;
+ resblks = qblocks = XFS_DIOSTRAT_SPACE_RES(mp, count_fsb);
quota_flag = XFS_QMOPT_RES_REGBLKS;
- numrtextents = 0;
}
/*
*/
xfs_iunlock(ip, XFS_ILOCK_EXCL);
tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);
- resblks = XFS_DIOSTRAT_SPACE_RES(mp, datablocks);
error = xfs_trans_reserve(tp, resblks,
- XFS_WRITE_LOG_RES(mp), numrtextents,
+ XFS_WRITE_LOG_RES(mp), resrtextents,
XFS_TRANS_PERM_LOG_RES,
XFS_WRITE_LOG_COUNT);
void
xlog_trace_loggrant(xlog_t *log, xlog_ticket_t *tic, xfs_caddr_t string)
{
- if (! log->l_grant_trace) {
- log->l_grant_trace = ktrace_alloc(1024, KM_NOSLEEP);
- if (! log->l_grant_trace)
+ unsigned long cnts;
+
+ if (!log->l_grant_trace) {
+ log->l_grant_trace = ktrace_alloc(2048, KM_NOSLEEP);
+ if (!log->l_grant_trace)
return;
}
+ /* ticket counts are 1 byte each */
+ cnts = ((unsigned long)tic->t_ocnt) | ((unsigned long)tic->t_cnt) << 8;
ktrace_enter(log->l_grant_trace,
(void *)tic,
(void *)((unsigned long)CYCLE_LSN(log->l_tail_lsn)),
(void *)((unsigned long)BLOCK_LSN(log->l_tail_lsn)),
(void *)string,
- (void *)((unsigned long)13),
- (void *)((unsigned long)14),
- (void *)((unsigned long)15),
- (void *)((unsigned long)16));
+ (void *)((unsigned long)tic->t_trans_type),
+ (void *)cnts,
+ (void *)((unsigned long)tic->t_curr_res),
+ (void *)((unsigned long)tic->t_unit_res));
}
void
* Release ticket if not permanent reservation or a specifc
* request has been made to release a permanent reservation.
*/
+ xlog_trace_loggrant(log, ticket, "xfs_log_done: (non-permanent)");
xlog_ungrant_log_space(log, ticket);
xlog_state_put_ticket(log, ticket);
} else {
+ xlog_trace_loggrant(log, ticket, "xfs_log_done: (permanent)");
xlog_regrant_reserve_log_space(log, ticket);
}
int cnt,
xfs_log_ticket_t *ticket,
__uint8_t client,
- uint flags)
+ uint flags,
+ uint t_type)
{
xlog_t *log = mp->m_log;
xlog_ticket_t *internal_ticket;
if (*ticket != NULL) {
ASSERT(flags & XFS_LOG_PERM_RESERV);
internal_ticket = (xlog_ticket_t *)*ticket;
+ xlog_trace_loggrant(log, internal_ticket, "xfs_log_reserve: existing ticket (permanent trans)");
xlog_grant_push_ail(mp, internal_ticket->t_unit_res);
retval = xlog_regrant_write_log_space(log, internal_ticket);
} else {
/* may sleep if need to allocate more tickets */
internal_ticket = xlog_ticket_get(log, unit_bytes, cnt,
client, flags);
+ internal_ticket->t_trans_type = t_type;
*ticket = internal_ticket;
+ xlog_trace_loggrant(log, internal_ticket,
+ (internal_ticket->t_flags & XLOG_TIC_PERM_RESERV) ?
+ "xfs_log_reserve: create new ticket (permanent trans)" :
+ "xfs_log_reserve: create new ticket");
xlog_grant_push_ail(mp,
(internal_ticket->t_unit_res *
internal_ticket->t_cnt));
if (! (XLOG_FORCED_SHUTDOWN(log))) {
reg[0].i_addr = (void*)&magic;
reg[0].i_len = sizeof(magic);
+ XLOG_VEC_SET_TYPE(®[0], XLOG_REG_TYPE_UNMOUNT);
- error = xfs_log_reserve(mp, 600, 1, &tic, XFS_LOG, 0);
+ error = xfs_log_reserve(mp, 600, 1, &tic, XFS_LOG, 0, 0);
if (!error) {
/* remove inited flag */
((xlog_ticket_t *)tic)->t_flags = 0;
reg[0].i_addr = NULL;
reg[0].i_len = 0;
+ XLOG_VEC_SET_TYPE(®[0], XLOG_REG_TYPE_COMMIT);
ASSERT_ALWAYS(iclog);
if ((error = xlog_write(mp, reg, 1, ticket, commitlsnp,
+/*
+ * print out info relating to regions written which consume
+ * the reservation
+ */
+#if defined(XFS_LOG_RES_DEBUG)
+STATIC void
+xlog_print_tic_res(xfs_mount_t *mp, xlog_ticket_t *ticket)
+{
+ uint i;
+ uint ophdr_spc = ticket->t_res_num_ophdrs * (uint)sizeof(xlog_op_header_t);
+
+ /* match with XLOG_REG_TYPE_* in xfs_log.h */
+ static char *res_type_str[XLOG_REG_TYPE_MAX] = {
+ "bformat",
+ "bchunk",
+ "efi_format",
+ "efd_format",
+ "iformat",
+ "icore",
+ "iext",
+ "ibroot",
+ "ilocal",
+ "iattr_ext",
+ "iattr_broot",
+ "iattr_local",
+ "qformat",
+ "dquot",
+ "quotaoff",
+ "LR header",
+ "unmount",
+ "commit",
+ "trans header"
+ };
+ static char *trans_type_str[XFS_TRANS_TYPE_MAX] = {
+ "SETATTR_NOT_SIZE",
+ "SETATTR_SIZE",
+ "INACTIVE",
+ "CREATE",
+ "CREATE_TRUNC",
+ "TRUNCATE_FILE",
+ "REMOVE",
+ "LINK",
+ "RENAME",
+ "MKDIR",
+ "RMDIR",
+ "SYMLINK",
+ "SET_DMATTRS",
+ "GROWFS",
+ "STRAT_WRITE",
+ "DIOSTRAT",
+ "WRITE_SYNC",
+ "WRITEID",
+ "ADDAFORK",
+ "ATTRINVAL",
+ "ATRUNCATE",
+ "ATTR_SET",
+ "ATTR_RM",
+ "ATTR_FLAG",
+ "CLEAR_AGI_BUCKET",
+ "QM_SBCHANGE",
+ "DUMMY1",
+ "DUMMY2",
+ "QM_QUOTAOFF",
+ "QM_DQALLOC",
+ "QM_SETQLIM",
+ "QM_DQCLUSTER",
+ "QM_QINOCREATE",
+ "QM_QUOTAOFF_END",
+ "SB_UNIT",
+ "FSYNC_TS",
+ "GROWFSRT_ALLOC",
+ "GROWFSRT_ZERO",
+ "GROWFSRT_FREE",
+ "SWAPEXT"
+ };
+
+ xfs_fs_cmn_err(CE_WARN, mp,
+ "xfs_log_write: reservation summary:\n"
+ " trans type = %s (%u)\n"
+ " unit res = %d bytes\n"
+ " current res = %d bytes\n"
+ " total reg = %u bytes (o/flow = %u bytes)\n"
+ " ophdrs = %u (ophdr space = %u bytes)\n"
+ " ophdr + reg = %u bytes\n"
+ " num regions = %u\n",
+ ((ticket->t_trans_type <= 0 ||
+ ticket->t_trans_type > XFS_TRANS_TYPE_MAX) ?
+ "bad-trans-type" : trans_type_str[ticket->t_trans_type-1]),
+ ticket->t_trans_type,
+ ticket->t_unit_res,
+ ticket->t_curr_res,
+ ticket->t_res_arr_sum, ticket->t_res_o_flow,
+ ticket->t_res_num_ophdrs, ophdr_spc,
+ ticket->t_res_arr_sum +
+ ticket->t_res_o_flow + ophdr_spc,
+ ticket->t_res_num);
+
+ for (i = 0; i < ticket->t_res_num; i++) {
+ uint r_type = ticket->t_res_arr[i].r_type;
+ cmn_err(CE_WARN,
+ "region[%u]: %s - %u bytes\n",
+ i,
+ ((r_type <= 0 || r_type > XLOG_REG_TYPE_MAX) ?
+ "bad-rtype" : res_type_str[r_type-1]),
+ ticket->t_res_arr[i].r_len);
+ }
+}
+#else
+#define xlog_print_tic_res(mp, ticket)
+#endif
+
/*
* Write some region out to in-core log
*
* xlog_op_header_t and may need to be double word aligned.
*/
len = 0;
- if (ticket->t_flags & XLOG_TIC_INITED) /* acct for start rec of xact */
+ if (ticket->t_flags & XLOG_TIC_INITED) { /* acct for start rec of xact */
len += sizeof(xlog_op_header_t);
+ XLOG_TIC_ADD_OPHDR(ticket);
+ }
for (index = 0; index < nentries; index++) {
len += sizeof(xlog_op_header_t); /* each region gets >= 1 */
+ XLOG_TIC_ADD_OPHDR(ticket);
len += reg[index].i_len;
+ XLOG_TIC_ADD_REGION(ticket, reg[index].i_len, reg[index].i_type);
}
contwr = *start_lsn = 0;
if (ticket->t_curr_res < len) {
+ xlog_print_tic_res(mp, ticket);
#ifdef DEBUG
xlog_panic(
"xfs_log_write: reservation ran out. Need to up reservation");
len += sizeof(xlog_op_header_t); /* from splitting of region */
/* account for new log op header */
ticket->t_curr_res -= sizeof(xlog_op_header_t);
+ XLOG_TIC_ADD_OPHDR(ticket);
}
xlog_verify_dest_ptr(log, ptr);
*/
if (log_offset == 0) {
ticket->t_curr_res -= log->l_iclog_hsize;
+ XLOG_TIC_ADD_REGION(ticket,
+ log->l_iclog_hsize,
+ XLOG_REG_TYPE_LRHEADER);
INT_SET(head->h_cycle, ARCH_CONVERT, log->l_curr_cycle);
ASSIGN_LSN(head->h_lsn, log);
ASSERT(log->l_curr_block >= 0);
#endif
tic->t_curr_res = tic->t_unit_res;
+ XLOG_TIC_RESET_RES(tic);
if (tic->t_cnt > 0)
return (0);
XLOG_GRANT_SUB_SPACE(log, ticket->t_curr_res, 'w');
XLOG_GRANT_SUB_SPACE(log, ticket->t_curr_res, 'r');
ticket->t_curr_res = ticket->t_unit_res;
+ XLOG_TIC_RESET_RES(ticket);
xlog_trace_loggrant(log, ticket,
"xlog_regrant_reserve_log_space: sub current res");
xlog_verify_grant_head(log, 1);
xlog_verify_grant_head(log, 0);
GRANT_UNLOCK(log, s);
ticket->t_curr_res = ticket->t_unit_res;
+ XLOG_TIC_RESET_RES(ticket);
} /* xlog_regrant_reserve_log_space */
* and their unit amount is the total amount of space required.
*
* The following lines of code account for non-transaction data
- * which occupy space in the on-disk log.
+ * which occupy space in the on-disk log.
+ *
+ * Normal form of a transaction is:
+ * <oph><trans-hdr><start-oph><reg1-oph><reg1><reg2-oph>...<commit-oph>
+ * and then there are LR hdrs, split-recs and roundoff at end of syncs.
+ *
+ * We need to account for all the leadup data and trailer data
+ * around the transaction data.
+ * And then we need to account for the worst case in terms of using
+ * more space.
+ * The worst case will happen if:
+ * - the placement of the transaction happens to be such that the
+ * roundoff is at its maximum
+ * - the transaction data is synced before the commit record is synced
+ * i.e. <transaction-data><roundoff> | <commit-rec><roundoff>
+ * Therefore the commit record is in its own Log Record.
+ * This can happen as the commit record is called with its
+ * own region to xlog_write().
+ * This then means that in the worst case, roundoff can happen for
+ * the commit-rec as well.
+ * The commit-rec is smaller than padding in this scenario and so it is
+ * not added separately.
*/
+ /* for trans header */
+ unit_bytes += sizeof(xlog_op_header_t);
+ unit_bytes += sizeof(xfs_trans_header_t);
+
/* for start-rec */
- unit_bytes += sizeof(xlog_op_header_t);
+ unit_bytes += sizeof(xlog_op_header_t);
+
+ /* for LR headers */
+ num_headers = ((unit_bytes + log->l_iclog_size-1) >> log->l_iclog_size_log);
+ unit_bytes += log->l_iclog_hsize * num_headers;
+
+ /* for commit-rec LR header - note: padding will subsume the ophdr */
+ unit_bytes += log->l_iclog_hsize;
+
+ /* for split-recs - ophdrs added when data split over LRs */
+ unit_bytes += sizeof(xlog_op_header_t) * num_headers;
- /* for padding */
+ /* for roundoff padding for transaction data and one for commit record */
if (XFS_SB_VERSION_HASLOGV2(&log->l_mp->m_sb) &&
- log->l_mp->m_sb.sb_logsunit > 1) {
+ log->l_mp->m_sb.sb_logsunit > 1) {
/* log su roundoff */
- unit_bytes += log->l_mp->m_sb.sb_logsunit;
+ unit_bytes += 2*log->l_mp->m_sb.sb_logsunit;
} else {
/* BB roundoff */
- unit_bytes += BBSIZE;
+ unit_bytes += 2*BBSIZE;
}
- /* for commit-rec */
- unit_bytes += sizeof(xlog_op_header_t);
-
- /* for LR headers */
- num_headers = ((unit_bytes + log->l_iclog_size-1) >> log->l_iclog_size_log);
- unit_bytes += log->l_iclog_hsize * num_headers;
-
tic->t_unit_res = unit_bytes;
tic->t_curr_res = unit_bytes;
tic->t_cnt = cnt;
tic->t_tid = (xlog_tid_t)((__psint_t)tic & 0xffffffff);
tic->t_clientid = client;
tic->t_flags = XLOG_TIC_INITED;
+ tic->t_trans_type = 0;
if (xflags & XFS_LOG_PERM_RESERV)
tic->t_flags |= XLOG_TIC_PERM_RESERV;
sv_init(&(tic->t_sema), SV_DEFAULT, "logtick");
+ XLOG_TIC_RESET_RES(tic);
+
return tic;
} /* xlog_ticket_get */
#define XFS_VOLUME 0x2
#define XFS_LOG 0xaa
+
+/* Region types for iovec's i_type */
+#if defined(XFS_LOG_RES_DEBUG)
+#define XLOG_REG_TYPE_BFORMAT 1
+#define XLOG_REG_TYPE_BCHUNK 2
+#define XLOG_REG_TYPE_EFI_FORMAT 3
+#define XLOG_REG_TYPE_EFD_FORMAT 4
+#define XLOG_REG_TYPE_IFORMAT 5
+#define XLOG_REG_TYPE_ICORE 6
+#define XLOG_REG_TYPE_IEXT 7
+#define XLOG_REG_TYPE_IBROOT 8
+#define XLOG_REG_TYPE_ILOCAL 9
+#define XLOG_REG_TYPE_IATTR_EXT 10
+#define XLOG_REG_TYPE_IATTR_BROOT 11
+#define XLOG_REG_TYPE_IATTR_LOCAL 12
+#define XLOG_REG_TYPE_QFORMAT 13
+#define XLOG_REG_TYPE_DQUOT 14
+#define XLOG_REG_TYPE_QUOTAOFF 15
+#define XLOG_REG_TYPE_LRHEADER 16
+#define XLOG_REG_TYPE_UNMOUNT 17
+#define XLOG_REG_TYPE_COMMIT 18
+#define XLOG_REG_TYPE_TRANSHDR 19
+#define XLOG_REG_TYPE_MAX 19
+#endif
+
+#if defined(XFS_LOG_RES_DEBUG)
+#define XLOG_VEC_SET_TYPE(vecp, t) ((vecp)->i_type = (t))
+#else
+#define XLOG_VEC_SET_TYPE(vecp, t)
+#endif
+
+
typedef struct xfs_log_iovec {
xfs_caddr_t i_addr; /* beginning address of region */
int i_len; /* length in bytes of region */
+#if defined(XFS_LOG_RES_DEBUG)
+ uint i_type; /* type of region */
+#endif
} xfs_log_iovec_t;
typedef void* xfs_log_ticket_t;
int count,
xfs_log_ticket_t *ticket,
__uint8_t clientid,
- uint flags);
+ uint flags,
+ uint t_type);
int xfs_log_write(struct xfs_mount *mp,
xfs_log_iovec_t region[],
int nentries,
#define XLOG_COVER_OPS 5
+
+/* Ticket reservation region accounting */
+#if defined(XFS_LOG_RES_DEBUG)
+#define XLOG_TIC_LEN_MAX 15
+#define XLOG_TIC_RESET_RES(t) ((t)->t_res_num = \
+ (t)->t_res_arr_sum = (t)->t_res_num_ophdrs = 0)
+#define XLOG_TIC_ADD_OPHDR(t) ((t)->t_res_num_ophdrs++)
+#define XLOG_TIC_ADD_REGION(t, len, type) \
+ do { \
+ if ((t)->t_res_num == XLOG_TIC_LEN_MAX) { \
+ /* add to overflow and start again */ \
+ (t)->t_res_o_flow += (t)->t_res_arr_sum; \
+ (t)->t_res_num = 0; \
+ (t)->t_res_arr_sum = 0; \
+ } \
+ (t)->t_res_arr[(t)->t_res_num].r_len = (len); \
+ (t)->t_res_arr[(t)->t_res_num].r_type = (type); \
+ (t)->t_res_arr_sum += (len); \
+ (t)->t_res_num++; \
+ } while (0)
+
+/*
+ * Reservation region
+ * As would be stored in xfs_log_iovec but without the i_addr which
+ * we don't care about.
+ */
+typedef struct xlog_res {
+ uint r_len;
+ uint r_type;
+} xlog_res_t;
+#else
+#define XLOG_TIC_RESET_RES(t)
+#define XLOG_TIC_ADD_OPHDR(t)
+#define XLOG_TIC_ADD_REGION(t, len, type)
+#endif
+
+
typedef struct xlog_ticket {
- sv_t t_sema; /* sleep on this semaphore :20 */
- struct xlog_ticket *t_next; /* : 4 */
- struct xlog_ticket *t_prev; /* : 4 */
- xlog_tid_t t_tid; /* transaction identifier : 4 */
- int t_curr_res; /* current reservation in bytes : 4 */
- int t_unit_res; /* unit reservation in bytes : 4 */
- __uint8_t t_ocnt; /* original count : 1 */
- __uint8_t t_cnt; /* current count : 1 */
- __uint8_t t_clientid; /* who does this belong to; : 1 */
- __uint8_t t_flags; /* properties of reservation : 1 */
+ sv_t t_sema; /* sleep on this semaphore : 20 */
+ struct xlog_ticket *t_next; /* :4|8 */
+ struct xlog_ticket *t_prev; /* :4|8 */
+ xlog_tid_t t_tid; /* transaction identifier : 4 */
+ int t_curr_res; /* current reservation in bytes : 4 */
+ int t_unit_res; /* unit reservation in bytes : 4 */
+ char t_ocnt; /* original count : 1 */
+ char t_cnt; /* current count : 1 */
+ char t_clientid; /* who does this belong to; : 1 */
+ char t_flags; /* properties of reservation : 1 */
+ uint t_trans_type; /* transaction type : 4 */
+
+#if defined (XFS_LOG_RES_DEBUG)
+ /* reservation array fields */
+ uint t_res_num; /* num in array : 4 */
+ xlog_res_t t_res_arr[XLOG_TIC_LEN_MAX]; /* array of res : X */
+ uint t_res_num_ophdrs; /* num op hdrs : 4 */
+ uint t_res_arr_sum; /* array sum : 4 */
+ uint t_res_o_flow; /* sum overflow : 4 */
+#endif
} xlog_ticket_t;
+
#endif
old_ptr = item->ri_buf[item->ri_cnt-1].i_addr;
old_len = item->ri_buf[item->ri_cnt-1].i_len;
- ptr = kmem_realloc(old_ptr, len+old_len, old_len, 0);
+ ptr = kmem_realloc(old_ptr, len+old_len, old_len, 0u);
memcpy(&ptr[old_len], dp, len); /* d, s, l */
item->ri_buf[item->ri_cnt-1].i_len += len;
item->ri_buf[item->ri_cnt-1].i_addr = ptr;
/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
#include "xfs_dir2.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
-
+#include "xfs_quota.h"
+#include "xfs_error.h"
STATIC struct xfs_dquot *
xfs_dqvopchown_default(
return NULL;
}
+/*
+ * Clear the quotaflags in memory and in the superblock.
+ */
+int
+xfs_mount_reset_sbqflags(xfs_mount_t *mp)
+{
+ int error;
+ xfs_trans_t *tp;
+ unsigned long s;
+
+ mp->m_qflags = 0;
+ /*
+ * It is OK to look at sb_qflags here in mount path,
+ * without SB_LOCK.
+ */
+ if (mp->m_sb.sb_qflags == 0)
+ return 0;
+ s = XFS_SB_LOCK(mp);
+ mp->m_sb.sb_qflags = 0;
+ XFS_SB_UNLOCK(mp, s);
+
+ /*
+ * if the fs is readonly, let the incore superblock run
+ * with quotas off but don't flush the update out to disk
+ */
+ if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
+ return 0;
+#ifdef QUOTADEBUG
+ xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes");
+#endif
+ tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
+ if ((error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
+ XFS_DEFAULT_LOG_COUNT))) {
+ xfs_trans_cancel(tp, 0);
+ xfs_fs_cmn_err(CE_ALERT, mp,
+ "xfs_mount_reset_sbqflags: Superblock update failed!");
+ return error;
+ }
+ xfs_mod_sb(tp, XFS_SB_QFLAGS);
+ error = xfs_trans_commit(tp, 0, NULL);
+ return error;
+}
+
+STATIC int
+xfs_noquota_init(
+ xfs_mount_t *mp,
+ uint *needquotamount,
+ uint *quotaflags)
+{
+ int error = 0;
+
+ *quotaflags = 0;
+ *needquotamount = B_FALSE;
+
+ ASSERT(!XFS_IS_QUOTA_ON(mp));
+
+ /*
+ * If a file system had quotas running earlier, but decided to
+ * mount without -o uquota/pquota/gquota options, revoke the
+ * quotachecked license.
+ */
+ if (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT) {
+ cmn_err(CE_NOTE,
+ "XFS resetting qflags for filesystem %s",
+ mp->m_fsname);
+
+ error = xfs_mount_reset_sbqflags(mp);
+ }
+ return error;
+}
+
xfs_qmops_t xfs_qmcore_stub = {
- .xfs_qminit = (xfs_qminit_t) fs_noerr,
+ .xfs_qminit = (xfs_qminit_t) xfs_noquota_init,
.xfs_qmdone = (xfs_qmdone_t) fs_noerr,
.xfs_qmmount = (xfs_qmmount_t) fs_noerr,
.xfs_qmunmount = (xfs_qmunmount_t) fs_noerr,
/*
- * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
#define XFS_OQUOTA_CHKD 0x0020 /* quotacheck run on other (grp/prj) quotas */
#define XFS_GQUOTA_ACCT 0x0040 /* group quota accounting ON */
+/*
+ * Quota Accounting/Enforcement flags
+ */
+#define XFS_ALL_QUOTA_ACCT \
+ (XFS_UQUOTA_ACCT | XFS_GQUOTA_ACCT | XFS_PQUOTA_ACCT)
+#define XFS_ALL_QUOTA_ENFD (XFS_UQUOTA_ENFD | XFS_OQUOTA_ENFD)
+#define XFS_ALL_QUOTA_CHKD (XFS_UQUOTA_CHKD | XFS_OQUOTA_CHKD)
+
+#define XFS_IS_QUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
+#define XFS_IS_QUOTA_ENFORCED(mp) ((mp)->m_qflags & XFS_ALL_QUOTA_ENFD)
+#define XFS_IS_UQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_UQUOTA_ACCT)
+#define XFS_IS_PQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_PQUOTA_ACCT)
+#define XFS_IS_GQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)
+
/*
* Incore only flags for quotaoff - these bits get cleared when quota(s)
* are in the process of getting turned off. These flags are in m_qflags but
f | XFS_QMOPT_RES_REGBLKS)
extern int xfs_qm_dqcheck(xfs_disk_dquot_t *, xfs_dqid_t, uint, uint, char *);
+extern int xfs_mount_reset_sbqflags(struct xfs_mount *);
extern struct bhv_vfsops xfs_qmops;
error = xfs_log_reserve(tp->t_mountp, logspace, logcount,
&tp->t_ticket,
- XFS_TRANSACTION, log_flags);
+ XFS_TRANSACTION, log_flags, tp->t_type);
if (error) {
goto undo_blocks;
}
tp->t_header.th_num_items = nitems;
log_vector->i_addr = (xfs_caddr_t)&tp->t_header;
log_vector->i_len = sizeof(xfs_trans_header_t);
+ XLOG_VEC_SET_TYPE(log_vector, XLOG_REG_TYPE_TRANSHDR);
}
#define XFS_TRANS_GROWFSRT_ZERO 38
#define XFS_TRANS_GROWFSRT_FREE 39
#define XFS_TRANS_SWAPEXT 40
+#define XFS_TRANS_TYPE_MAX 40
/* new transaction types need to be reflected in xfs_logprint(8) */
void xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
void xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
void xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
+void xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
void xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
void xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
else {
xfs_cmn_err(XFS_PTAG_AILDELETE, CE_ALERT, mp,
"xfs_trans_delete_ail: attempting to delete a log item that is not in the AIL");
- xfs_force_shutdown(mp, XFS_CORRUPT_INCORE);
AIL_UNLOCK(mp, s);
+ xfs_force_shutdown(mp, XFS_CORRUPT_INCORE);
}
}
}
xfs_buf_item_trace("BHOLD", bip);
}
+/*
+ * Cancel the previous buffer hold request made on this buffer
+ * for this transaction.
+ */
+void
+xfs_trans_bhold_release(xfs_trans_t *tp,
+ xfs_buf_t *bp)
+{
+ xfs_buf_log_item_t *bip;
+
+ ASSERT(XFS_BUF_ISBUSY(bp));
+ ASSERT(XFS_BUF_FSPRIVATE2(bp, xfs_trans_t *) == tp);
+ ASSERT(XFS_BUF_FSPRIVATE(bp, void *) != NULL);
+
+ bip = XFS_BUF_FSPRIVATE(bp, xfs_buf_log_item_t *);
+ ASSERT(!(bip->bli_flags & XFS_BLI_STALE));
+ ASSERT(!(bip->bli_format.blf_flags & XFS_BLI_CANCEL));
+ ASSERT(atomic_read(&bip->bli_refcount) > 0);
+ ASSERT(bip->bli_flags & XFS_BLI_HOLD);
+ bip->bli_flags &= ~XFS_BLI_HOLD;
+ xfs_buf_item_trace("BHOLD RELEASE", bip);
+}
+
/*
* This is called to mark bytes first through last inclusive of the given
* buffer as needing to be logged when the transaction is committed.
xfs_mount_t *mp;
xfs_sb_t *sbp;
unsigned long s;
- u64 id;
mp = XFS_BHVTOM(bdp);
sbp = &(mp->m_sb);
statp->f_ffree = statp->f_files - (sbp->sb_icount - sbp->sb_ifree);
XFS_SB_UNLOCK(mp, s);
- id = huge_encode_dev(mp->m_dev);
- statp->f_fsid.val[0] = (u32)id;
- statp->f_fsid.val[1] = (u32)(id >> 32);
+ xfs_statvfs_fsid(statp, mp);
statp->f_namelen = MAXNAMELEN - 1;
return 0;
xfs_inode_t *ip_next;
xfs_buf_t *bp;
vnode_t *vp = NULL;
- vmap_t vmap;
int error;
int last_error;
uint64_t fflag;
* lock in xfs_ireclaim() after the inode is pulled from
* the mount list will sleep until we release it here.
* This keeps the vnode from being freed while we reference
- * it. It is also cheaper and simpler than actually doing
- * a vn_get() for every inode we touch here.
+ * it.
*/
if (xfs_ilock_nowait(ip, lock_flags) == 0) {
-
if ((flags & SYNC_BDFLUSH) || (vp == NULL)) {
ip = ip->i_mnext;
continue;
}
- /*
- * We need to unlock the inode list lock in order
- * to lock the inode. Insert a marker record into
- * the inode list to remember our position, dropping
- * the lock is now done inside the IPOINTER_INSERT
- * macro.
- *
- * We also use the inode list lock to protect us
- * in taking a snapshot of the vnode version number
- * for use in calling vn_get().
- */
- VMAP(vp, vmap);
- IPOINTER_INSERT(ip, mp);
-
- vp = vn_get(vp, &vmap);
+ vp = vn_grab(vp);
if (vp == NULL) {
- /*
- * The vnode was reclaimed once we let go
- * of the inode list lock. Skip to the
- * next list entry. Remove the marker.
- */
-
- XFS_MOUNT_ILOCK(mp);
-
- mount_locked = B_TRUE;
- vnode_refed = B_FALSE;
-
- IPOINTER_REMOVE(ip, mp);
-
+ ip = ip->i_mnext;
continue;
}
+ IPOINTER_INSERT(ip, mp);
xfs_ilock(ip, lock_flags);
ASSERT(vp == XFS_ITOV(ip));
* eventually kicked out of the cache.
*/
if (flags & SYNC_REFCACHE) {
- xfs_refcache_purge_some(mp);
+ if (flags & SYNC_WAIT)
+ xfs_refcache_purge_mp(mp);
+ else
+ xfs_refcache_purge_some(mp);
}
/*
#define MNTOPT_SWIDTH "swidth" /* data volume stripe width */
#define MNTOPT_NOUUID "nouuid" /* ignore filesystem UUID */
#define MNTOPT_MTPT "mtpt" /* filesystem mount point */
+#define MNTOPT_GRPID "grpid" /* group-ID from parent directory */
+#define MNTOPT_NOGRPID "nogrpid" /* group-ID from current process */
+#define MNTOPT_BSDGROUPS "bsdgroups" /* group-ID from parent directory */
+#define MNTOPT_SYSVGROUPS "sysvgroups" /* group-ID from current process */
#define MNTOPT_ALLOCSIZE "allocsize" /* preferred allocation size */
#define MNTOPT_IHASHSIZE "ihashsize" /* size of inode hash table */
#define MNTOPT_NORECOVERY "norecovery" /* don't run XFS recovery */
}
args->flags |= XFSMNT_IHASHSIZE;
args->ihashsize = simple_strtoul(value, &eov, 10);
+ } else if (!strcmp(this_char, MNTOPT_GRPID) ||
+ !strcmp(this_char, MNTOPT_BSDGROUPS)) {
+ vfsp->vfs_flag |= VFS_GRPID;
+ } else if (!strcmp(this_char, MNTOPT_NOGRPID) ||
+ !strcmp(this_char, MNTOPT_SYSVGROUPS)) {
+ vfsp->vfs_flag &= ~VFS_GRPID;
} else if (!strcmp(this_char, MNTOPT_WSYNC)) {
args->flags |= XFSMNT_WSYNC;
} else if (!strcmp(this_char, MNTOPT_OSYNCISOSYNC)) {
};
struct proc_xfs_info *xfs_infop;
struct xfs_mount *mp = XFS_BHVTOM(bhv);
+ struct vfs *vfsp = XFS_MTOVFS(mp);
for (xfs_infop = xfs_info; xfs_infop->flag; xfs_infop++) {
if (mp->m_flags & xfs_infop->flag)
if (!(mp->m_flags & XFS_MOUNT_32BITINOOPT))
seq_printf(m, "," MNTOPT_64BITINODE);
-
+
+ if (vfsp->vfs_flag & VFS_GRPID)
+ seq_printf(m, "," MNTOPT_GRPID);
+
return 0;
}
* If it's a directory with any blocks, read-ahead block 0
* as we're almost certain to have the next operation be a read there.
*/
- if (vp->v_type == VDIR && ip->i_d.di_nextents > 0) {
+ if (VN_ISDIR(vp) && ip->i_d.di_nextents > 0) {
mode = xfs_ilock_map_shared(ip);
if (ip->i_d.di_nextents > 0)
(void)xfs_da_reada_buf(NULL, ip, 0, XFS_DATA_FORK);
/*
* Copy from in-core inode.
*/
- vap->va_type = vp->v_type;
- vap->va_mode = ip->i_d.di_mode & MODEMASK;
+ vap->va_mode = ip->i_d.di_mode;
vap->va_uid = ip->i_d.di_uid;
vap->va_gid = ip->i_d.di_gid;
vap->va_projid = ip->i_d.di_projid;
/*
* Check vnode type block/char vs. everything else.
- * Do it with bitmask because that's faster than looking
- * for multiple values individually.
*/
- if (((1 << vp->v_type) & ((1<<VBLK) | (1<<VCHR))) == 0) {
+ switch (ip->i_d.di_mode & S_IFMT) {
+ case S_IFBLK:
+ case S_IFCHR:
+ vap->va_rdev = ip->i_df.if_u2.if_rdev;
+ vap->va_blocksize = BLKDEV_IOSIZE;
+ break;
+ default:
vap->va_rdev = 0;
if (!(ip->i_d.di_flags & XFS_DIFLAG_REALTIME)) {
(ip->i_d.di_extsize << mp->m_sb.sb_blocklog) :
(mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog);
}
- } else {
- vap->va_rdev = ip->i_df.if_u2.if_rdev;
- vap->va_blocksize = BLKDEV_IOSIZE;
+ break;
}
vap->va_atime.tv_sec = ip->i_d.di_atime.t_sec;
m |= S_ISGID;
#if 0
/* Linux allows this, Irix doesn't. */
- if ((vap->va_mode & S_ISVTX) && vp->v_type != VDIR)
+ if ((vap->va_mode & S_ISVTX) && !VN_ISDIR(vp))
m |= S_ISVTX;
#endif
if (m && !capable(CAP_FSETID))
goto error_return;
}
- if (vp->v_type == VDIR) {
+ if (VN_ISDIR(vp)) {
code = XFS_ERROR(EISDIR);
goto error_return;
- } else if (vp->v_type != VREG) {
+ } else if (!VN_ISREG(vp)) {
code = XFS_ERROR(EINVAL);
goto error_return;
}
vp = BHV_TO_VNODE(bdp);
ip = XFS_BHVTOI(bdp);
- if ((vp->v_type != VREG) || (ip->i_d.di_mode == 0)) {
+ if (!VN_ISREG(vp) || (ip->i_d.di_mode == 0)) {
return 0;
}
dp = XFS_BHVTOI(dir_bdp);
mp = dp->i_mount;
- dm_di_mode = vap->va_mode|VTTOIF(vap->va_type);
+ dm_di_mode = vap->va_mode;
namelen = VNAMELEN(dentry);
if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp, DM_EVENT_CREATE)) {
(error = XFS_DIR_CANENTER(mp, tp, dp, name, namelen)))
goto error_return;
rdev = (vap->va_mask & XFS_AT_RDEV) ? vap->va_rdev : 0;
- error = xfs_dir_ialloc(&tp, dp,
- MAKEIMODE(vap->va_type,vap->va_mode), 1,
+ error = xfs_dir_ialloc(&tp, dp, vap->va_mode, 1,
rdev, credp, prid, resblks > 0,
&ip, &committed);
if (error) {
vn_trace_entry(src_vp, __FUNCTION__, (inst_t *)__return_address);
target_namelen = VNAMELEN(dentry);
- if (src_vp->v_type == VDIR)
+ if (VN_ISDIR(src_vp))
return XFS_ERROR(EPERM);
src_bdp = vn_bhv_lookup_unlocked(VN_BHV_HEAD(src_vp), &xfs_vnodeops);
tp = NULL;
dp_joined_to_trans = B_FALSE;
- dm_di_mode = vap->va_mode|VTTOIF(vap->va_type);
+ dm_di_mode = vap->va_mode;
if (DM_EVENT_ENABLED(dir_vp->v_vfsp, dp, DM_EVENT_CREATE)) {
error = XFS_SEND_NAMESP(mp, DM_EVENT_CREATE,
/*
* create the directory inode.
*/
- error = xfs_dir_ialloc(&tp, dp,
- MAKEIMODE(vap->va_type,vap->va_mode), 2,
+ error = xfs_dir_ialloc(&tp, dp, vap->va_mode, 2,
0, credp, prid, resblks > 0,
&cdp, NULL);
if (error) {
vnode_t *vp;
vp = BHV_TO_VNODE(bdp);
- if (vp->v_type == VDIR)
+ if (VN_ISDIR(vp))
return 1;
ip = XFS_BHVTOI(bdp);
if (locktype == VRWLOCK_WRITE) {
vnode_t *vp;
vp = BHV_TO_VNODE(bdp);
- if (vp->v_type == VDIR)
+ if (VN_ISDIR(vp))
return;
ip = XFS_BHVTOI(bdp);
if (locktype == VRWLOCK_WRITE) {
return 0;
}
- if ((ip->i_d.di_mode & S_IFMT) == S_IFREG) {
- if (ip->i_d.di_size > 0) {
- /*
- * Flush and invalidate any data left around that is
- * a part of this file.
- *
- * Get the inode's i/o lock so that buffers are pushed
- * out while holding the proper lock. We can't hold
- * the inode lock here since flushing out buffers may
- * cause us to try to get the lock in xfs_strategy().
- *
- * We don't have to call remapf() here, because there
- * cannot be any mapped file references to this vnode
- * since it is being reclaimed.
- */
- xfs_ilock(ip, XFS_IOLOCK_EXCL);
-
- /*
- * If we hit an IO error, we need to make sure that the
- * buffer and page caches of file data for
- * the file are tossed away. We don't want to use
- * VOP_FLUSHINVAL_PAGES here because we don't want dirty
- * pages to stay attached to the vnode, but be
- * marked P_BAD. pdflush/vnode_pagebad
- * hates that.
- */
- if (!XFS_FORCED_SHUTDOWN(ip->i_mount)) {
- VOP_FLUSHINVAL_PAGES(vp, 0, -1, FI_NONE);
- } else {
- VOP_TOSS_PAGES(vp, 0, -1, FI_NONE);
- }
+ vn_iowait(vp);
- ASSERT(VN_CACHED(vp) == 0);
- ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) ||
- ip->i_delayed_blks == 0);
- xfs_iunlock(ip, XFS_IOLOCK_EXCL);
- } else if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
- /*
- * di_size field may not be quite accurate if we're
- * shutting down.
- */
- VOP_TOSS_PAGES(vp, 0, -1, FI_NONE);
- ASSERT(VN_CACHED(vp) == 0);
- }
- }
+ ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0);
+ ASSERT(VN_CACHED(vp) == 0);
/* If we have nothing to flush with this inode then complete the
* teardown now, otherwise break the link between the xfs inode
/*
* must be a regular file and have write permission
*/
- if (vp->v_type != VREG)
+ if (!VN_ISREG(vp))
return XFS_ERROR(EINVAL);
xfs_ilock(ip, XFS_ILOCK_SHARED);
git.openpandora.org / pandora-kernel.git / commitdiff