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authorChristoph Hellwig <hch@lst.de>2019-02-18 18:38:48 +0100
committerDarrick J. Wong <darrick.wong@oracle.com>2019-02-21 16:55:07 +0100
commitc4feb0b194f37b33514ee30a9e86a68194a1361e (patch)
tree4fbf4db5663fb332c7950b00000c2c8edc8a81ef /fs/xfs/xfs_iomap.c
parentxfs: make COW fork unwritten extent conversions more robust (diff)
downloadlinux-c4feb0b194f37b33514ee30a9e86a68194a1361e.tar.xz
linux-c4feb0b194f37b33514ee30a9e86a68194a1361e.zip
xfs: report IOMAP_F_SHARED from xfs_file_iomap_begin_delay
No user of it in the iomap code at the moment, but we should not actively report wrong information if we can trivially get it right. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to '')
-rw-r--r--fs/xfs/xfs_iomap.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 08c4d1d8f90e..0803ed76e296 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -541,7 +541,7 @@ xfs_file_iomap_begin_delay(
struct xfs_bmbt_irec imap, cmap;
struct xfs_iext_cursor icur, ccur;
xfs_fsblock_t prealloc_blocks = 0;
- bool eof = false, cow_eof = false, shared;
+ bool eof = false, cow_eof = false, shared = false;
int whichfork = XFS_DATA_FORK;
int error = 0;
@@ -710,13 +710,14 @@ done:
if (imap.br_startoff > offset_fsb) {
xfs_trim_extent(&cmap, offset_fsb,
imap.br_startoff - offset_fsb);
- error = xfs_bmbt_to_iomap(ip, iomap, &cmap, false);
+ error = xfs_bmbt_to_iomap(ip, iomap, &cmap, true);
goto out_unlock;
}
/* ensure we only report blocks we have a reservation for */
xfs_trim_extent(&imap, cmap.br_startoff, cmap.br_blockcount);
+ shared = true;
}
- error = xfs_bmbt_to_iomap(ip, iomap, &imap, false);
+ error = xfs_bmbt_to_iomap(ip, iomap, &imap, shared);
out_unlock:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
return error;