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xfs: handle "raw" delayed extents xfs_reflink_trim_around_shared

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Delalloc extents in the extent list contain the number of reserved
indirect blocks in their startblock value and don't use the magic
DELAYSTARTBLOCK constant.  Ensure that xfs_reflink_trim_around_shared
handles them properly by checking for isnullstartblock().

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Christoph Hellwig 2016-10-20 15:52:00 +11:00 committed by Dave Chinner
parent 0a0af28cad
commit 62c5ac89de
1 changed files with 2 additions and 1 deletions
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3
fs/xfs/xfs_reflink.c
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@ -182,7 +182,8 @@ xfs_reflink_trim_around_shared(
if (!xfs_is_reflink_inode(ip) ||
ISUNWRITTEN(irec) ||
irec->br_startblock == HOLESTARTBLOCK ||
irec->br_startblock == DELAYSTARTBLOCK) {
irec->br_startblock == DELAYSTARTBLOCK ||
isnullstartblock(irec->br_startblock)) {
*shared = false;
return 0;
}