diff options
| author | Steve French <smfrench@gmail.com> | 2018-05-10 10:59:37 -0500 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2018-05-10 19:21:14 -0500 |
| commit | 6e70c267e68d77679534dcf4aaf84e66f2cf1425 (patch) | |
| tree | 18dbbc4fd655506f31bb8586a4c64eacf3b67893 /fs/cifs | |
| parent | ae2cd7fb478b8da707906ee1706ae1379968a8f9 (diff) | |
| download | linux-6e70c267e68d77679534dcf4aaf84e66f2cf1425.tar.bz2 | |
smb3: directory sync should not return an error
As with NFS, which ignores sync on directory handles,
fsync on a directory handle is a noop for CIFS/SMB3.
Do not return an error on it. It breaks some database
apps otherwise.
Signed-off-by: Steve French <smfrench@gmail.com>
CC: Stable <stable@vger.kernel.org>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs')
| -rw-r--r-- | fs/cifs/cifsfs.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index f715609b13f3..5a5a0158cc8f 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -1047,6 +1047,18 @@ out: return rc; } +/* + * Directory operations under CIFS/SMB2/SMB3 are synchronous, so fsync() + * is a dummy operation. + */ +static int cifs_dir_fsync(struct file *file, loff_t start, loff_t end, int datasync) +{ + cifs_dbg(FYI, "Sync directory - name: %pD datasync: 0x%x\n", + file, datasync); + + return 0; +} + static ssize_t cifs_copy_file_range(struct file *src_file, loff_t off, struct file *dst_file, loff_t destoff, size_t len, unsigned int flags) @@ -1181,6 +1193,7 @@ const struct file_operations cifs_dir_ops = { .copy_file_range = cifs_copy_file_range, .clone_file_range = cifs_clone_file_range, .llseek = generic_file_llseek, + .fsync = cifs_dir_fsync, }; static void |