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61be9c529a
kernel_optimize_test/fs/xfs
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Dave Chinner 61be9c529a xfs: rework xfs_buf_bio_endio error handling 
Currently the report of a bio error from completion
immediately marks the buffer with an error. The issue is that this
is racy w.r.t. synchronous IO - the submitter can see b_error being
set before the IO is complete, and hence we cannot differentiate
between submission failures and completion failures.

Add an internal b_io_error field protected by the b_lock to catch IO
completion errors, and only propagate that to the buffer during
final IO completion handling. Hence we can tell in xfs_buf_iorequest
if we've had a submission failure bey checking bp->b_error before
dropping our b_io_remaining reference - that reference will prevent
b_io_error values from being propagated to b_error in the event that
completion races with submission.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-10-02 09:04:31 +10:00
..
libxfs Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +10:00
Kconfig xfs: require 64-bit sector_t 2014-07-30 09:12:05 +10:00
kmem.c xfs: use NOIO contexts for vm_map_ram 2014-03-07 16:19:14 +11:00
kmem.h
Makefile xfs: add xfs_mount sysfs kobject 2014-07-15 08:07:01 +10:00
mrlock.h
time.h
uuid.c
uuid.h
xfs_acl.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_acl.h xfs: use generic posix ACL infrastructure 2014-01-25 23:58:21 -05:00
xfs_aops.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_aops.h
xfs_attr_inactive.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_attr_list.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_attr.h
xfs_bit.c
xfs_bmap_util.c Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +10:00
xfs_bmap_util.h xfs: refine the allocation stack switch 2014-07-15 07:08:24 +10:00
xfs_buf_item.c xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality 2014-10-02 09:04:22 +10:00
xfs_buf_item.h
xfs_buf.c xfs: rework xfs_buf_bio_endio error handling 2014-10-02 09:04:31 +10:00
xfs_buf.h xfs: rework xfs_buf_bio_endio error handling 2014-10-02 09:04:31 +10:00
xfs_dir2_readdir.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_discard.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_discard.h
xfs_dquot_item.c xfs: remove the quotaoff log format from the quotaoff log item 2013-12-13 11:34:08 +11:00
xfs_dquot_item.h xfs: remove the quotaoff log format from the quotaoff log item 2013-12-13 11:34:08 +11:00
xfs_dquot.c xfs: quotacheck leaves dquot buffers without verifiers 2014-08-04 12:43:26 +10:00
xfs_dquot.h xfs: run an eofblocks scan on ENOSPC/EDQUOT 2014-07-24 19:49:28 +10:00
xfs_error.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_error.h xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_export.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_export.h
xfs_extent_busy.c
xfs_extent_busy.h
xfs_extfree_item.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_extfree_item.h
xfs_file.c Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +10:00
xfs_filestream.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_filestream.h xfs: add filestream allocator tracepoints 2014-04-23 07:11:52 +10:00
xfs_fs.h Merge branch 'xfs-misc-fixes-3.17-1' into for-next 2014-08-04 13:54:14 +10:00
xfs_fsops.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_fsops.h
xfs_globals.c
xfs_icache.c xfs: run an eofblocks scan on ENOSPC/EDQUOT 2014-07-24 19:49:28 +10:00
xfs_icache.h xfs: run an eofblocks scan on ENOSPC/EDQUOT 2014-07-24 19:49:28 +10:00
xfs_icreate_item.c xfs: format log items write directly into the linear CIL buffer 2013-12-13 11:34:02 +11:00
xfs_icreate_item.h
xfs_inode_item.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_inode_item.h xfs: remove the inode log format from the inode log item 2013-12-13 11:34:05 +11:00
xfs_inode.c xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality 2014-10-02 09:04:22 +10:00
xfs_inode.h xfs: kill xfs_vnode.h 2014-08-04 13:28:20 +10:00
xfs_ioctl.c Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +10:00
xfs_ioctl.h
xfs_ioctl32.c Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +10:00
xfs_ioctl32.h
xfs_iomap.c Merge branch 'xfs-quota-eofblocks-scan' into for-next 2014-08-04 13:53:47 +10:00
xfs_iomap.h
xfs_iops.c xfs: fix rounding error of fiemap length parameter 2014-08-04 11:35:35 +10:00
xfs_iops.h xfs: use generic posix ACL infrastructure 2014-01-25 23:58:21 -05:00
xfs_itable.c xfs: introduce xfs_bulkstat_ag_ichunk 2014-08-04 11:22:31 +10:00
xfs_itable.h xfs: introduce xfs_bulkstat_ag_ichunk 2014-08-04 11:22:31 +10:00
xfs_linux.h Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +10:00
xfs_log_cil.c xfs: fix cil push sequence after log recovery 2014-07-24 20:49:40 +10:00
xfs_log_priv.h xfs: add xlog sysfs kobject and attribute handlers 2014-07-15 08:07:29 +10:00
xfs_log_recover.c xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality 2014-10-02 09:04:22 +10:00
xfs_log.c xfs: xfs_buf_ioend and xfs_buf_iodone_work duplicate functionality 2014-10-02 09:04:22 +10:00
xfs_log.h xfs: log vector rounding leaks log space 2014-05-20 08:18:09 +10:00
xfs_message.c
xfs_message.h
xfs_mount.c Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +10:00
xfs_mount.h xfs: add xfs_mount sysfs kobject 2014-07-15 08:07:01 +10:00
xfs_mru_cache.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_mru_cache.h xfs: embedd mru_elem into parent structure 2014-04-23 07:11:51 +10:00
xfs_qm_bhv.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_qm_syscalls.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_qm.c Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +10:00
xfs_qm.h xfs: mark xfs_qm_quotacheck as static 2014-07-24 20:49:57 +10:00
xfs_quota.h
xfs_quotaops.c xfs: fix uflags detection at xfs_fs_rm_xquota 2014-07-24 21:27:17 +10:00
xfs_rtalloc.c xfs: require 64-bit sector_t 2014-07-30 09:12:05 +10:00
xfs_rtalloc.h xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_stats.c xfs: support the XFS_BTNUM_FINOBT free inode btree type 2014-04-24 16:00:52 +10:00
xfs_stats.h xfs: support the XFS_BTNUM_FINOBT free inode btree type 2014-04-24 16:00:52 +10:00
xfs_super.c Merge branch 'xfs-misc-fixes-3.17-1' into for-next 2014-08-04 13:54:14 +10:00
xfs_super.h xfs: require 64-bit sector_t 2014-07-30 09:12:05 +10:00
xfs_symlink.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_symlink.h
xfs_sysctl.c
xfs_sysctl.h
xfs_sysfs.c xfs: add log attributes for log lsn and grant head data 2014-07-15 08:07:48 +10:00
xfs_sysfs.h xfs: add xlog sysfs kobject and attribute handlers 2014-07-15 08:07:29 +10:00
xfs_trace.c xfs: add filestream allocator tracepoints 2014-04-23 07:11:52 +10:00
xfs_trace.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2014-06-12 10:30:18 -07:00
xfs_trans_ail.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_trans_buf.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_trans_dquot.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_trans_extfree.c
xfs_trans_inode.c
xfs_trans_priv.h xfs: remove unused ail pointer arg from xfs_trans_ail_cursor_done() 2014-04-14 19:06:05 +10:00
xfs_trans.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_trans.h xfs: format log items write directly into the linear CIL buffer 2013-12-13 11:34:02 +11:00
xfs_types.h xfs: require 64-bit sector_t 2014-07-30 09:12:05 +10:00
xfs_xattr.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs.h