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android_kernel_oneplus_msm8998/fs/xfs
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Brian Foster da5f10969d xfs: flush the range before zero range conversion 
XFS currently discards delalloc blocks within the target range of a
zero range request. Unaligned start and end offsets are zeroed
through the page cache and the internal, aligned blocks are
converted to unwritten extents.

If EOF is page aligned and covered by a delayed allocation extent.
The inode size is not updated until I/O completion. If a zero range
request discards a delalloc range that covers page aligned EOF as
such, the inode size update never occurs. For example:

$ rm -f /mnt/file
$ xfs_io -fc "pwrite 0 64k" -c "zero 60k 4k" /mnt/file
$ stat -c "%s" /mnt/file
65536
$ umount /mnt
$ mount <dev> /mnt
$ stat -c "%s" /mnt/file
61440

Update xfs_zero_file_space() to flush the range rather than discard
delalloc blocks to ensure that inode size updates occur
appropriately.

[dchinner: Note that this is really a workaround to avoid the
underlying problems. More work is needed (and ongoing) to fix those
issues so this fix is being added as a temporary stop-gap measure. ]

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
2014-10-02 09:44:54 +10:00
..
libxfs xfs: fix crc field handling in xfs_sb_to/from_disk 2014-10-02 09:24:11 +10:00
Kconfig xfs: require 64-bit sector_t 2014-07-30 09:12:05 +10:00
kmem.c xfs: kill time.h 2014-10-02 09:18:13 +10:00
kmem.h
Makefile xfs: add xfs_mount sysfs kobject 2014-07-15 08:07:01 +10:00
mrlock.h
uuid.c
uuid.h
xfs.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: restore buffer_head unwritten bit on ioend cancel 2014-10-02 09:42:06 +10:00
xfs_aops.h
xfs_attr.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_bit.c
xfs_bmap_util.c xfs: flush the range before zero range conversion 2014-10-02 09:44:54 +10:00
xfs_bmap_util.h xfs: refine the allocation stack switch 2014-07-15 07:08:24 +10:00
xfs_buf.c xfs: mark all internal workqueues as freezable 2014-09-09 11:44:46 +10:00
xfs_buf.h xfs: global error sign conversion 2014-06-25 14:58:08 +10:00
xfs_buf_item.c xfs: xfs_buf_write_fail_rl_state can be static 2014-09-23 16:15:45 +10:00
xfs_buf_item.h
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.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_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_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: lseek: the "whence" argument is called "whence" 2014-09-09 11:57:10 +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: export log_recovery_delay to delay mount time log recovery 2014-09-09 11:56:13 +10:00
xfs_icache.c xfs: remove second xfs_quota.h inclusion in xfs_icache.c 2014-09-23 16:05:55 +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.c xfs: project id inheritance is a directory only flag 2014-10-02 09:18:40 +10:00
xfs_inode.h xfs: check for inode size overflow in xfs_new_eof() 2014-10-02 09:21:53 +10:00
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_ioctl.c xfs: only set extent size hint when asked 2014-10-02 09:20:30 +10:00
xfs_ioctl.h
xfs_ioctl32.c xfs: compat_xfs_bstat does not have forkoff 2014-10-02 09:17:58 +10:00
xfs_ioctl32.h xfs: compat_xfs_bstat does not have forkoff 2014-10-02 09:17:58 +10:00
xfs_iomap.c xfs: check for null dquot in xfs_quota_calc_throttle() 2014-10-02 09:27:09 +10:00
xfs_iomap.h
xfs_iops.c xfs: flush entire last page of old EOF on truncate up 2014-09-23 22:55:00 +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 xfs: kill time.h 2014-10-02 09:18:13 +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_log_cil.c xfs: xlog_cil_force_lsn doesn't always wait correctly 2014-09-23 15:57:59 +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: deduplicate xlog_do_recovery_pass() 2014-09-09 11:57:29 +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: mark all internal workqueues as freezable 2014-09-09 11:44:46 +10:00
xfs_mru_cache.h xfs: embedd mru_elem into parent structure 2014-04-23 07:11:51 +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_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_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: xfs_rtget_summary can be static 2014-09-23 16:11:43 +10:00
xfs_rtalloc.h xfs: combine xfs_rtmodify_summary and xfs_rtget_summary 2014-09-09 11:58:42 +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 xfs: add debug sysfs attribute set 2014-09-09 11:52:42 +10:00
xfs_super.h xfs: require 64-bit sector_t 2014-07-30 09:12:05 +10:00
xfs_symlink.c xfs: check resblks before calling xfs_dir_canenter 2014-09-09 11:57:52 +10:00
xfs_symlink.h
xfs_sysctl.c
xfs_sysctl.h xfs: export log_recovery_delay to delay mount time log recovery 2014-09-09 11:56:13 +10:00
xfs_sysfs.c xfs: export log_recovery_delay to delay mount time log recovery 2014-09-09 11:56:13 +10:00
xfs_sysfs.h xfs: add debug sysfs attribute set 2014-09-09 11:52:42 +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.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_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: kill time.h 2014-10-02 09:18:13 +10:00
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_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