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| author | Jeff Layton <jlayton@redhat.com> | 2012-09-18 16:20:35 -0700 |
|---|---|---|
| committer | Steve French <smfrench@gmail.com> | 2012-09-24 21:46:31 -0500 |
| commit | b8eed28375a43e1c9aaa9d15af2a052aae0d0725 (patch) | |
| tree | e63b713d5ae69afee73bf40487e5f067f2a66eb9 /fs/cifs/connect.c | |
| parent | 6f49f46b187df34539f1e5df2469b8a541897700 (diff) | |
| download | blackbird-op-linux-b8eed28375a43e1c9aaa9d15af2a052aae0d0725.tar.gz blackbird-op-linux-b8eed28375a43e1c9aaa9d15af2a052aae0d0725.zip | |
cifs: cork the socket before a send and uncork it afterward
We want to send SMBs as "atomically" as possible. Prior to sending any
data on the socket, cork it to make sure that no non-full frames go
out. Afterward, uncork it to make sure all of the data gets pushed out
to the wire.
Note that this more or less renders the socket=TCP_NODELAY mount option
obsolete. When TCP_CORK and TCP_NODELAY are used on the same socket,
TCP_NODELAY is essentially ignored.
Acked-by: Pavel Shilovsky <pshilovsky@samba.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs/cifs/connect.c')
| -rw-r--r-- | fs/cifs/connect.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 549409b1c776..5210bc82b1dc 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1680,6 +1680,10 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, if (string == NULL) goto out_nomem; + /* + * FIXME: since we now cork/uncork the socket while + * sending, should we deprecate this option? + */ if (strnicmp(string, "TCP_NODELAY", 11) == 0) vol->sockopt_tcp_nodelay = 1; break; |
