Dave Chinner 137fff09b7 xfs: fix buffer shudown reference count mismatch ... When we shut down the filesystem, we have to unpin and free all the buffers currently active in the CIL. To do this we unpin and remove them in one operation as a result of a failed iclogbuf write. For buffers, we do this removal via a simultated IO completion of after marking the buffer stale. At the time we do this, we have two references to the buffer - the active LRU reference and the buf log item. The LRU reference is removed by marking the buffer stale, and the active CIL reference is by the xfs_buf_iodone() callback that is run by xfs_buf_do_callbacks() during ioend processing (via the bp->b_iodone callback). However, ioend processing requires one more reference - that of the IO that it is completing. We don't have this reference, so we free the buffer prematurely and use it after it is freed. For buffers marked with XBF_ASYNC, this leads to assert failures in xfs_buf_rele() on debug kernels because the b_hold count is zero. Fix this by making sure we take the necessary IO reference before starting IO completion processing on the stale buffer, and set the XBF_ASYNC flag to ensure that IO completion processing removes all the active references from the buffer to ensure it is fully torn down. Cc: <stable@vger.kernel.org> Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>		2012-11-07 15:26:53 -06:00
..
Kconfig
kmem.c	xfs: switch to proper __bitwise type for KM_... flags	2012-05-29 23:28:32 -04:00
kmem.h	xfs: switch to proper __bitwise type for KM_... flags	2012-05-29 23:28:32 -04:00
Makefile	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
mrlock.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
time.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
uuid.c	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
uuid.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_acl.c	userns: Pass a userns parameter into posix_acl_to_xattr and posix_acl_from_xattr	2012-09-18 01:01:35 -07:00
xfs_acl.h	xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not set	2011-08-01 02:35:04 -04:00
xfs_ag.h	xfs: move busy extent handling to it's own file	2012-05-14 16:20:55 -05:00
xfs_alloc_btree.c	xfs: invalidate allocbt blocks moved to the free list	2012-11-07 14:13:30 -06:00
xfs_alloc_btree.h	xfs: struct xfs_buf_log_format isn't variable sized.	2012-07-01 14:50:04 -05:00
xfs_alloc.c	xfs: move allocation stack switch up to xfs_bmapi_allocate	2012-10-18 17:42:48 -05:00
xfs_alloc.h	xfs: move allocation stack switch up to xfs_bmapi_allocate	2012-10-18 17:42:48 -05:00
xfs_aops.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-08-01 10:26:23 -07:00
xfs_aops.h	Prefix IO_XX flags with XFS_IO_XX to avoid namespace colision.	2012-07-22 11:00:55 -05:00
xfs_attr_leaf.c	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_attr_leaf.h	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_attr_sf.h
xfs_attr.c	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_attr.h
xfs_bit.c
xfs_bit.h
xfs_bmap_btree.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_bmap_btree.h
xfs_bmap.c	xfs: move allocation stack switch up to xfs_bmapi_allocate	2012-10-18 17:42:48 -05:00
xfs_bmap.h	xfs: move allocation stack switch up to xfs_bmapi_allocate	2012-10-18 17:42:48 -05:00
xfs_btree.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_btree.h	xfs: Remove the macro XFS_BUF_PTR	2011-07-25 15:03:13 -05:00
xfs_buf_item.c	xfs: fix buffer shudown reference count mismatch	2012-11-07 15:26:53 -06:00
xfs_buf_item.h	xfs: support discontiguous buffers in the xfs_buf_log_item	2012-07-01 14:50:06 -05:00
xfs_buf.c	xfs: fix race while discarding buffers [V4]	2012-08-29 15:01:11 -05:00
xfs_buf.h	xfs: fix race while discarding buffers [V4]	2012-08-29 15:01:11 -05:00
xfs_da_btree.c	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_da_btree.h	xfs: fix comment typo of struct xfs_da_blkinfo.	2012-07-22 10:34:42 -05:00
xfs_dfrag.c	switch simple cases of fget_light to fdget	2012-09-26 22:20:08 -04:00
xfs_dfrag.h
xfs_dinode.h	xfs: fix typo in comment of xfs_dinode_t.	2012-06-14 12:28:26 -05:00
xfs_dir2_block.c	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_dir2_data.c	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_dir2_format.h	xfs: cleanup struct xfs_dir2_free	2011-07-13 13:43:48 +02:00
xfs_dir2_leaf.c	xfs: factor buffer reading from xfs_dir2_leaf_getdents	2012-07-01 14:50:08 -05:00
xfs_dir2_node.c	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_dir2_priv.h	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_dir2_sf.c	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_dir2.c	xfs: remove struct xfs_dabuf and infrastructure	2012-07-01 14:50:07 -05:00
xfs_dir2.h	xfs: reshuffle dir2 headers	2011-07-13 13:43:48 +02:00
xfs_discard.c	xfs: check for possible overflow in xfs_ioc_trim	2012-08-23 14:48:44 -05:00
xfs_discard.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_dquot_item.c	xfs: clean up xfs_bit.h includes	2012-05-14 16:21:00 -05:00
xfs_dquot_item.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_dquot.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_dquot.h	xfs: on-stack delayed write buffer lists	2012-05-14 16:20:31 -05:00
xfs_error.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_error.h	xfs: kill support/debug.[ch]	2011-03-07 10:09:35 +11:00
xfs_export.c	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_export.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_extent_busy.c	xfs: make xfs_extent_busy_trim not static	2012-05-14 16:21:04 -05:00
xfs_extent_busy.h	xfs: make xfs_extent_busy_trim not static	2012-05-14 16:21:04 -05:00
xfs_extfree_item.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_extfree_item.h
xfs_file.c	xfs: xfs_sync_data is redundant.	2012-10-17 12:01:25 -05:00
xfs_filestream.c	xfs: rename allocation range fields in struct xfs_bmalloca	2011-10-11 21:15:06 -05:00
xfs_filestream.h
xfs_fs_subr.c	xfs: remove the i_size field in struct xfs_inode	2012-01-17 15:08:53 -06:00
xfs_fs.h	xfs: consolidate & clarify mount sanity checks	2011-07-08 11:32:51 -05:00
xfs_fsops.c	xfs: growfs: don't read garbage for new secondary superblocks	2012-11-02 15:42:35 -05:00
xfs_fsops.h	xfs: ensure log covering transactions are synchronous	2011-01-11 20:28:17 -06:00
xfs_globals.c	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_ialloc_btree.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_ialloc_btree.h
xfs_ialloc.c	xfs: Update inode alloc comments	2012-11-02 17:13:12 -05:00
xfs_ialloc.h	xfs: remove the alloc_done argument to xfs_dialloc	2012-07-29 16:00:31 -05:00
xfs_icache.c	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_icache.h	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_inode_item.c	xfs: check for stale inode before acquiring iflock on push	2012-06-21 14:20:06 -05:00
xfs_inode_item.h	xfs: pass shutdown method into xfs_trans_ail_delete_bulk	2012-05-14 16:20:33 -05:00
xfs_inode.c	xfs: don't vmap inode cluster buffers during free	2012-11-07 14:15:48 -06:00
xfs_inode.h	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_inum.h	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_ioctl32.c	xfs: Convert to new freezing code	2012-07-31 09:45:48 +04:00
xfs_ioctl32.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_ioctl.c	xfs: silence uninitialised f.file warning.	2012-11-02 16:18:45 -05:00
xfs_ioctl.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_iomap.c	xfs: introduce XFS_BMAPI_STACK_SWITCH	2012-10-18 17:41:56 -05:00
xfs_iomap.h
xfs_iops.c	xfs: update for 3.6-rc1	2012-07-30 13:37:53 -07:00
xfs_iops.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_itable.c	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_itable.h
xfs_linux.h	xfs: revert to using a kthread for AIL pushing	2011-10-11 11:02:49 -05:00
xfs_log_cil.c	xfs: rename log structure to xlog	2012-06-21 14:21:11 -05:00
xfs_log_priv.h	xfs: sync work is now only periodic log work	2012-10-17 11:53:29 -05:00
xfs_log_recover.c	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_log_recover.h
xfs_log.c	xfs: only update the last_sync_lsn when a transaction completes	2012-10-17 13:43:35 -05:00
xfs_log.h	xfs: xfs_quiesce_attr() should quiesce the log like unmount	2012-10-17 13:39:14 -05:00
xfs_message.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_message.h	treewide: use __printf not __attribute__((format(printf,...)))	2011-10-31 17:30:54 -07:00
xfs_mount.c	xfs: rename xfs_sync.[ch] to xfs_icache.[ch]	2012-10-17 13:40:09 -05:00
xfs_mount.h	xfs: rename xfs_sync.[ch] to xfs_icache.[ch]	2012-10-17 13:40:09 -05:00
xfs_mru_cache.c	xfs: convert to alloc_workqueue()	2011-02-01 11:42:43 +01:00
xfs_mru_cache.h
xfs_qm_bhv.c	xfs: clean up xfs_bit.h includes	2012-05-14 16:21:00 -05:00
xfs_qm_syscalls.c	xfs: rename xfs_sync.[ch] to xfs_icache.[ch]	2012-10-17 13:40:09 -05:00
xfs_qm.c	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_qm.h	xfs: remove the global xfs_Gqm structure	2012-03-14 12:06:32 -05:00
xfs_quota_priv.h	xfs: use per-filesystem radix trees for dquot lookup	2012-03-14 11:09:06 -05:00
xfs_quota.h	Define new macro XFS_ALL_QUOTA_ACTIVE and simply some usage	2012-02-03 11:32:20 -06:00
xfs_quotaops.c	userns: Convert qutoactl	2012-09-18 01:01:39 -07:00
xfs_rename.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_rtalloc.c	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_rtalloc.h	xfs: Remove the macro XFS_BUF_PTR	2011-07-25 15:03:13 -05:00
xfs_sb.h	xfs: kill the unused XFS_BB_FSB_OFFSET macro	2012-02-02 17:08:04 -06:00
xfs_stats.c	xfs: use common code for quota statistics	2012-03-14 11:09:06 -05:00
xfs_stats.h	xfs: use common code for quota statistics	2012-03-14 11:09:06 -05:00
xfs_super.c	xfs: rename xfs_sync.[ch] to xfs_icache.[ch]	2012-10-17 13:40:09 -05:00
xfs_super.h	xfs: xfs_sync_data is redundant.	2012-10-17 12:01:25 -05:00
xfs_sysctl.c	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_sysctl.h	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs_trace.c	xfs: clean up xfs_bit.h includes	2012-05-14 16:21:00 -05:00
xfs_trace.h	xfs: kill struct declarations in xfs_mount.h	2012-08-16 13:29:35 -05:00
xfs_trans_ail.c	xfs: re-enable xfsaild idle mode and fix associated races	2012-07-29 16:27:57 -05:00
xfs_trans_buf.c	xfs: add discontiguous buffer support to transactions	2012-07-01 14:50:06 -05:00
xfs_trans_dquot.c	userns: Convert quota netlink aka quota_send_warning	2012-09-18 01:01:40 -07:00
xfs_trans_extfree.c	xfs: move xfsagino_t to xfs_types.h	2012-05-14 16:20:54 -05:00
xfs_trans_inode.c	xfs: clean up xfs_bit.h includes	2012-05-14 16:21:00 -05:00
xfs_trans_priv.h	xfs: re-enable xfsaild idle mode and fix associated races	2012-07-29 16:27:57 -05:00
xfs_trans_space.h
xfs_trans.c	xfs: Convert to new freezing code	2012-07-31 09:45:48 +04:00
xfs_trans.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2012-08-01 10:26:23 -07:00
xfs_types.h	xfs: struct xfs_buf_log_format isn't variable sized.	2012-07-01 14:50:04 -05:00
xfs_utils.c	xfs: remove the alloc_done argument to xfs_dialloc	2012-07-29 16:00:31 -05:00
xfs_utils.h	xfs: propagate umode_t	2012-01-03 22:55:00 -05:00
xfs_vnode.h	xfs: remove remaining scraps of struct xfs_iomap	2012-03-15 13:40:16 -05:00
xfs_vnodeops.c	xfs: remove xfs_iget.c	2012-10-17 13:42:25 -05:00
xfs_vnodeops.h	xfs: remove remaining scraps of struct xfs_iomap	2012-03-15 13:40:16 -05:00
xfs_xattr.c	xfs: remove subdirectories	2011-08-12 16:21:35 -05:00
xfs.h	xfs: don't expect xfs headers to be in subdirectories	2011-08-12 13:57:55 -05:00