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authorDarrick J. Wong <djwong@kernel.org>2021-09-01 11:24:41 -0700
committerDarrick J. Wong <djwong@kernel.org>2021-12-15 17:29:27 -0800
commit22550aa21e73c9b19d9b1ccff6ee52bd08a26dff (patch)
tree6bb03bd728ba3fa3e4b7b51c39a24cec09646fdd
parent64275dc98fc08372fd735d80756947999322f965 (diff)
xfs: only free posteof blocks on first close
Certain workloads fragment files on XFS very badly, such as a software package that creates a number of threads, each of which repeatedly run the sequence: open a file, perform a synchronous write, and close the file, which defeats the speculative preallocation mechanism. We work around this problem by only deleting posteof blocks the /first/ time a file is closed to preserve the behavior that unpacking a tarball lays out files one after the other with no gaps. Signed-off-by: Darrick J. Wong <djwong@kernel.org>
-rw-r--r--fs/xfs/xfs_inode.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index efab9d3deb45..81e611488bfe 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1262,9 +1262,7 @@ xfs_release(
if (error)
goto out_unlock;
- /* delalloc blocks after truncation means it really is dirty */
- if (ip->i_delayed_blks)
- xfs_iflags_set(ip, XFS_IDIRTY_RELEASE);
+ xfs_iflags_set(ip, XFS_IDIRTY_RELEASE);
}
out_unlock: