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| author | Steve French <stfrench@microsoft.com> | 2018-08-02 20:28:18 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-05 09:26:33 +0200 |
| commit | be1210c7758cb0aba9c4323fb2fe79e64568db77 (patch) | |
| tree | 4c4feadfc25a2f68b21285a35747f4342b22375e /fs/cifs/smb2inode.c | |
| parent | 82a856f527334ffd69aae26e7dd9e03b19c4a520 (diff) | |
| download | linux-stable-be1210c7758cb0aba9c4323fb2fe79e64568db77.tar.gz linux-stable-be1210c7758cb0aba9c4323fb2fe79e64568db77.tar.bz2 linux-stable-be1210c7758cb0aba9c4323fb2fe79e64568db77.zip | |
smb3: Do not send SMB3 SET_INFO if nothing changed
commit fd09b7d3b352105f08b8e02f7afecf7e816380ef upstream.
An earlier commit had a typo which prevented the
optimization from working:
commit 18dd8e1a65dd ("Do not send SMB3 SET_INFO request if nothing is changing")
Thank you to Metze for noticing this. Also clear a
reserved field in the FILE_BASIC_INFO struct we send
that should be zero (all the other fields in that
struct were set or cleared explicitly already in
cifs_set_file_info).
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
CC: Stable <stable@vger.kernel.org> # 4.9.x+
Reported-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/cifs/smb2inode.c')
| -rw-r--r-- | fs/cifs/smb2inode.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c index 1238cd3552f9..0267d8cbc996 100644 --- a/fs/cifs/smb2inode.c +++ b/fs/cifs/smb2inode.c @@ -267,7 +267,7 @@ smb2_set_file_info(struct inode *inode, const char *full_path, int rc; if ((buf->CreationTime == 0) && (buf->LastAccessTime == 0) && - (buf->LastWriteTime == 0) && (buf->ChangeTime) && + (buf->LastWriteTime == 0) && (buf->ChangeTime == 0) && (buf->Attributes == 0)) return 0; /* would be a no op, no sense sending this */ |