[PATCH 5.18 677/879] NFS: fsync() should report filesystem errors over EINTR/ERESTARTSYS

Greg Kroah-Hartman
2022-06-08T00:42:56Z

From: Trond Myklebust <trond.myklebust@hammerspace.com>

[ Upstream commit 9641d9bc9b75f11f70646f5c6ee9f5f519a1012e ]

If the commit to disk is interrupted, we should still first check for
filesystem errors so that we can report them in preference to the error
due to the signal.

Fixes: 2197e9b06c22 ("NFS: Fix up fsync() when the server rebooted")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/nfs/file.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 150b7fa8f0a7..7c380e555224 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -204,15 +204,16 @@ static int
nfs_file_fsync_commit(struct file *file, int datasync)
{
struct inode *inode = file_inode(file);
- int ret;
+ int ret, ret2;

dprintk("NFS: fsync file(%pD2) datasync %d\n", file, datasync);

nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
ret = nfs_commit_inode(inode, FLUSH_SYNC);
- if (ret < 0)
- return ret;
- return file_check_and_advance_wb_err(file);
+ ret2 = file_check_and_advance_wb_err(file);
+ if (ret2 < 0)
+ return ret2;
+ return ret;
}

int
--
2.35.1