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linux/fs/xfs
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Brian Foster 41b9d7263e xfs: trim eofblocks before collapse range 
xfs_collapse_file_space() currently writes back the entire file
undergoing collapse range to settle things down for the extent shift
algorithm. While this prevents changes to the extent list during the
collapse operation, the writeback itself is not enough to prevent
unnecessary collapse failures.

The current shift algorithm uses the extent index to iterate the in-core
extent list. If a post-eof delalloc extent persists after the writeback
(e.g., a prior zero range op where the end of the range aligns with eof
can separate the post-eof blocks such that they are not written back and
converted), xfs_bmap_shift_extents() becomes confused over the encoded
br_startblock value and fails the collapse.

As with the full writeback, this is a temporary fix until the algorithm
is improved to cope with a volatile extent list and avoid attempts to
shift post-eof extents.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-09-02 12:12:53 +10:00
..
libxfs xfs: don't log inode unless extent shift makes extent modifications 2014-09-02 12:12:53 +10:00
Kconfig xfs: require 64-bit sector_t 2014-07-30 09:12:05 +10:00
kmem.c
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_aops.c xfs: don't dirty buffers beyond EOF 2014-09-02 12:12:51 +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 xfs: trim eofblocks before collapse range 2014-09-02 12:12:53 +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: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_buf_item.h
xfs_buf.c xfs: catch buffers written without verifiers attached 2014-08-04 12:42:40 +10:00
xfs_buf.h xfs: global error sign conversion 2014-06-25 14:58:08 +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_dquot_item.h
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 xfs: use ranged writeback and invalidation for direct IO 2014-09-02 12:12:53 +10:00
xfs_filestream.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_filestream.h
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_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_inode.c xfs: kill VN_DIRTY() 2014-08-04 13:22:49 +10:00
xfs_inode.h xfs: kill xfs_vnode.h 2014-08-04 13:28:20 +10:00
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_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_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_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: dquot recovery needs verifiers 2014-08-04 12:59:31 +10:00
xfs_log.c Merge branch 'xfs-misc-fixes-3.17-2' into for-next 2014-08-04 13:55:27 +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_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_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_trans.c xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_trans.h
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