[PATCH 14/14] xfs: enable non-blocking timestamp updates

Christoph Hellwig
2025-11-14T06:28:29Z

The lazytime path using generic_update_time can never block in XFS
because there is no ->dirty_inode method that could block. Allow
non-blocking timestamp updates for this case.

Fixes: 66fa3cedf16a ("fs: Add async write file modification handling.")
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
fs/xfs/xfs_iops.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index bd0b7e81f6ab..3d7b89ffacde 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1195,9 +1195,6 @@ xfs_vn_update_time(

trace_xfs_update_time(ip);

- if (flags & S_NOWAIT)
- return -EAGAIN;
-
if (inode->i_sb->s_flags & SB_LAZYTIME) {
if (!((flags & S_VERSION) &&
inode_maybe_inc_iversion(inode, false)))
@@ -1207,6 +1204,9 @@ xfs_vn_update_time(
log_flags |= XFS_ILOG_CORE;
}

+ if (flags & S_NOWAIT)
+ return -EAGAIN;
+
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_fsyncts, 0, 0, 0, &tp);
if (error)
return error;
--
2.47.3