[PATCH 5.18 679/879] NFS: Do not report flush errors in nfs_write_end()

Greg Kroah-Hartman
2022-06-08T00:26:53Z

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

[ Upstream commit d95b26650e86175e4a97698d89bc1626cd1df0c6 ]

If we do flush cached writebacks in nfs_write_end() due to the imminent
expiration of an RPCSEC_GSS session, then we should defer reporting any
resulting errors until the calls to file_check_and_advance_wb_err() in
nfs_file_write() and nfs_file_fsync().

Fixes: 6fbda89b257f ("NFS: Replace custom error reporting mechanism with generic one")
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 | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 87e4cd5e8fe2..3f17748eaf29 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -386,11 +386,8 @@ static int nfs_write_end(struct file *file, struct address_space *mapping,
return status;
NFS_I(mapping->host)->write_io += copied;

- if (nfs_ctx_key_to_expire(ctx, mapping->host)) {
- status = nfs_wb_all(mapping->host);
- if (status < 0)
- return status;
- }
+ if (nfs_ctx_key_to_expire(ctx, mapping->host))
+ nfs_wb_all(mapping->host);

return copied;
}
--
2.35.1