diff options
| author | Christoph Hellwig <hch@lst.de> | 2018-10-18 17:19:58 +1100 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2018-10-18 17:19:58 +1100 |
| commit | 032dc923b2baef87db6c812f6e8bebcb7638cab8 (patch) | |
| tree | c85c9b5e888b0a6d0e63dd661373e96ae0caf067 /fs/xfs | |
| parent | d392bc81bb7c26ea6225d088ead344ed6486b495 (diff) | |
| download | linux-032dc923b2baef87db6c812f6e8bebcb7638cab8.tar.gz | |
xfs: fix fork selection in xfs_find_trim_cow_extent
We should want to write directly into the data fork for blocks that don't
have an extent in the COW fork covering them yet.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs')
| -rw-r--r-- | fs/xfs/xfs_reflink.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/fs/xfs/xfs_reflink.c b/fs/xfs/xfs_reflink.c index 80e5e79b86b0..8eaeec9d58ed 100644 --- a/fs/xfs/xfs_reflink.c +++ b/fs/xfs/xfs_reflink.c @@ -369,9 +369,13 @@ xfs_find_trim_cow_extent( * If we don't find an overlapping extent, trim the range we need to * allocate to fit the hole we found. */ - if (!xfs_iext_lookup_extent(ip, ip->i_cowfp, offset_fsb, &icur, &got) || - got.br_startoff > offset_fsb) + if (!xfs_iext_lookup_extent(ip, ip->i_cowfp, offset_fsb, &icur, &got)) + got.br_startoff = offset_fsb + count_fsb; + if (got.br_startoff > offset_fsb) { + xfs_trim_extent(imap, imap->br_startoff, + got.br_startoff - imap->br_startoff); return xfs_reflink_trim_around_shared(ip, imap, shared); + } *shared = true; if (isnullstartblock(got.br_startblock)) { |