Brian Foster 7f6aff3a29 xfs: only run torn log write detection on dirty logs ... XFS uses CRC verification over a sub-range of the head of the log to detect and handle torn writes. This torn log write detection currently runs unconditionally at mount time, regardless of whether the log is dirty or clean. This is problematic in cases where a filesystem might end up being moved across different, incompatible (i.e., opposite byte-endianness) architectures. The problem lies in the fact that log data is not necessarily written in an architecture independent format. For example, certain bits of data are written in native endian format. Further, the size of certain log data structures differs (i.e., struct xlog_rec_header) depending on the word size of the cpu. This leads to false positive crc verification errors and ultimately failed mounts when a cleanly unmounted filesystem is mounted on a system with an incompatible architecture from data that was written near the head of the log. Update the log head/tail discovery code to run torn write detection only when the log is not clean. This means something other than an unmount record resides at the head of the log and log recovery is imminent. It is a requirement to run log recovery on the same type of host that had written the content of the dirty log and therefore CRC failures are legitimate corruptions in that scenario. Reported-by: Jan Beulich <JBeulich@suse.com> Tested-by: Jan Beulich <JBeulich@suse.com> Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>		2016-03-07 08:22:22 +11:00
..
libxfs	Merge branch 'xfs-setxattr-promotion' into for-next	2016-01-19 08:16:08 +11:00
Kconfig
kmem.c	xfs: more info from kmem deadlocks and high-level error msgs	2015-10-12 16:04:45 +11:00
kmem.h	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
Makefile	xfs: stats are no longer dependent on CONFIG_PROC_FS	2015-10-19 08:42:46 +11:00
mrlock.h
uuid.c
uuid.h
xfs.h
xfs_acl.c	xfs: Change how listxattr generates synthetic attributes	2015-12-06 21:34:16 -05:00
xfs_acl.h	xfs: Change how listxattr generates synthetic attributes	2015-12-06 21:34:16 -05:00
xfs_aops.c	xfs: add tracepoints to readpage calls	2016-01-08 11:28:35 +11:00
xfs_aops.h	xfs: DAX does not use IO completion callbacks	2015-11-03 12:37:02 +11:00
xfs_attr.h
xfs_attr_inactive.c	Merge branch 'xfs-misc-fixes-for-4.2-3' into for-next	2015-06-23 08:49:01 +10:00
xfs_attr_list.c	xfs: per-filesystem stats counter implementation	2015-10-12 18:21:22 +11:00
xfs_bmap_util.c	xfs: eliminate committed arg from xfs_bmap_finish	2016-01-11 11:34:01 +11:00
xfs_bmap_util.h	xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate	2015-03-25 15:08:56 +11:00
xfs_buf.c	xfs: Update 2 for 4.5-rc1	2016-01-22 10:54:13 -08:00
xfs_buf.h	xfs: print name of verifier if it fails	2016-01-04 16:10:19 +11:00
xfs_buf_item.c	Merge branch 'xfs-misc-fixes-for-4.3-3' into for-next	2015-08-25 10:13:35 +10:00
xfs_buf_item.h	xfs: fix non-debug build warnings	2015-08-25 10:05:13 +10:00
xfs_dir2_readdir.c	xfs: per-filesystem stats counter implementation	2015-10-12 18:21:22 +11:00
xfs_discard.c	xfs: pass mp to XFS_WANT_CORRUPTED_GOTO	2015-02-23 22:39:08 +11:00
xfs_discard.h
xfs_dquot.c	xfs: eliminate committed arg from xfs_bmap_finish	2016-01-11 11:34:01 +11:00
xfs_dquot.h	xfs: fix implicit bool to int conversion	2015-01-09 10:48:58 +11:00
xfs_dquot_item.c
xfs_dquot_item.h
xfs_error.c	xfs: print name of verifier if it fails	2016-01-04 16:10:19 +11:00
xfs_error.h	xfs: remove inst_t	2015-06-22 09:44:02 +10:00
xfs_export.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
xfs_export.h
xfs_extent_busy.c
xfs_extent_busy.h
xfs_extfree_item.c	xfs: add helper to conditionally remove items from the AIL	2015-08-19 10:01:08 +10:00
xfs_extfree_item.h	xfs: fix efi/efd error handling to avoid fs shutdown hangs	2015-08-19 09:51:16 +10:00
xfs_file.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-01-23 12:24:56 -08:00
xfs_filestream.c	xfs: clean up XFS_MIN_FREELIST macros	2015-06-22 10:13:30 +10:00
xfs_filestream.h
xfs_fsops.c	xfs: growfs not aware of sb_meta_uuid	2015-08-19 10:31:41 +10:00
xfs_fsops.h
xfs_globals.c
xfs_icache.c	xfs: per-filesystem stats counter implementation	2015-10-12 18:21:22 +11:00
xfs_icache.h
xfs_icreate_item.c
xfs_icreate_item.h
xfs_inode.c	Merge branch 'xfs-setxattr-promotion' into for-next	2016-01-19 08:16:08 +11:00
xfs_inode.h	xfs: clean up inode lockdep annotations	2015-08-19 10:32:49 +10:00
xfs_inode_item.c	xfs: optimise away log forces on timestamp updates for fdatasync	2015-11-03 13:14:59 +11:00
xfs_inode_item.h	xfs: optimise away log forces on timestamp updates for fdatasync	2015-11-03 13:14:59 +11:00
xfs_ioctl.c	xfs: introduce per-inode DAX enablement	2016-01-04 16:44:15 +11:00
xfs_ioctl.h
xfs_ioctl32.c	xfs: prefix XATTR_LIST_MAX with XFS_	2015-10-12 16:02:56 +11:00
xfs_ioctl32.h
xfs_iomap.c	Merge branch 'xfs-misc-fixes-for-4.5-2' into for-next	2016-01-12 07:04:30 +11:00
xfs_iomap.h	xfs: pass a 64-bit count argument to xfs_iomap_write_unwritten	2015-01-09 10:48:12 +11:00
xfs_iops.c	xfs: Update 2 for 4.5-rc1	2016-01-22 10:54:13 -08:00
xfs_iops.h	xfs: inodes are new until the dentry cache is set up	2015-02-23 22:38:08 +11:00
xfs_itable.c	xfs: fix btree cursor error cleanups	2015-08-19 10:00:53 +10:00
xfs_itable.h
xfs_linux.h	xfs: pass xfsstats structures to handlers and macros	2015-10-12 05:19:45 +11:00
xfs_log.c	Merge branch 'xfs-misc-fixes-for-4.5' into for-next	2016-01-05 08:08:35 +11:00
xfs_log.h	xfs: validate metadata LSNs against log on v5 superblocks	2015-10-12 15:59:25 +11:00
xfs_log_cil.c	xfs: close xc_cil list_empty() races with cil commit sequence	2015-07-29 11:51:01 +10:00
xfs_log_priv.h	xfs: debug mode log record crc error injection	2016-01-05 07:41:16 +11:00
xfs_log_recover.c	xfs: only run torn log write detection on dirty logs	2016-03-07 08:22:22 +11:00
xfs_message.c	xfs: more info from kmem deadlocks and high-level error msgs	2015-10-12 16:04:45 +11:00
xfs_message.h
xfs_mount.c	Merge branch 'xfs-misc-fixes-for-4.4-2' into for-next	2015-11-03 13:27:58 +11:00
xfs_mount.h	Merge branch 'xfs-dax-updates' into for-next	2015-11-03 13:28:41 +11:00
xfs_mru_cache.c	xfs: xfs_mru_cache_insert() should use GFP_NOFS	2015-03-25 14:57:53 +11:00
xfs_mru_cache.h
xfs_pnfs.c	wrappers for ->i_mutex access	2016-01-22 18:04:28 -05:00
xfs_pnfs.h	xfs: unlock i_mutex in xfs_break_layouts	2015-04-13 11:38:29 +10:00
xfs_qm.c	xfs: updates for 4.4-rc1	2015-11-11 20:18:48 -08:00
xfs_qm.h	xfs: Convert to using ->get_state callback	2015-03-04 16:06:36 +01:00
xfs_qm_bhv.c
xfs_qm_syscalls.c	xfs: saner xfs_trans_commit interface	2015-06-04 13:48:08 +10:00
xfs_quota.h	xfs: fix quota block reservation leak when tp allocates and frees blocks	2015-06-01 07:15:37 +10:00
xfs_quotaops.c	xfs: Add support for Q_SETINFO	2015-03-04 16:06:38 +01:00
xfs_rtalloc.c	xfs: eliminate committed arg from xfs_bmap_finish	2016-01-11 11:34:01 +11:00
xfs_rtalloc.h
xfs_stats.c	xfs: stats are no longer dependent on CONFIG_PROC_FS	2015-10-19 08:42:46 +11:00
xfs_stats.h	xfs: per-filesystem stats counter implementation	2015-10-12 18:21:22 +11:00
xfs_super.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
xfs_super.h	xfs: Remove icsb infrastructure	2015-02-23 21:22:31 +11:00
xfs_symlink.c	xfs: eliminate committed arg from xfs_bmap_finish	2016-01-11 11:34:01 +11:00
xfs_symlink.h
xfs_sysctl.c	xfs: pass xfsstats structures to handlers and macros	2015-10-12 05:19:45 +11:00
xfs_sysctl.h
xfs_sysfs.c	xfs: debug mode log record crc error injection	2016-01-05 07:41:16 +11:00
xfs_sysfs.h	xfs: create global stats and stats_clear in sysfs	2015-10-12 05:15:45 +11:00
xfs_trace.c
xfs_trace.h	xfs: add tracepoints to readpage calls	2016-01-08 11:28:35 +11:00
xfs_trans.c	xfs: per-filesystem stats counter implementation	2015-10-12 18:21:22 +11:00
xfs_trans.h	xfs: ensure EFD trans aborts on log recovery extent free failure	2015-08-19 09:51:43 +10:00
xfs_trans_ail.c	Revert "xfs: clear PF_NOFREEZE for xfsaild kthread"	2016-01-19 08:21:46 +11:00
xfs_trans_buf.c	xfs: only trace buffer items if they exist	2015-02-10 09:23:40 +11:00
xfs_trans_dquot.c	xfs: send warning of project quota to userspace via netlink	2016-01-04 16:10:42 +11:00
xfs_trans_extfree.c	xfs: ensure EFD trans aborts on log recovery extent free failure	2015-08-19 09:51:43 +10:00
xfs_trans_inode.c	xfs: optimise away log forces on timestamp updates for fdatasync	2015-11-03 13:14:59 +11:00
xfs_trans_priv.h	xfs: add helper to conditionally remove items from the AIL	2015-08-19 10:01:08 +10:00
xfs_xattr.c	xfs: Change how listxattr generates synthetic attributes	2015-12-06 21:34:16 -05:00