diff options
author | Steve French <sfrench@us.ibm.com> | 2010-01-01 01:28:43 (GMT) |
---|---|---|
committer | Steve French <sfrench@us.ibm.com> | 2010-01-01 01:28:43 (GMT) |
commit | 6a5fa2362b628ee950080bef8895a6fb62f58ab4 (patch) | |
tree | 6c756adf9c571529a7ace4e9da807b85e7b1c985 | |
parent | df9d1e8a4379119cbc47c474f168b5103e404e17 (diff) | |
download | linux-fsl-qoriq-6a5fa2362b628ee950080bef8895a6fb62f58ab4.tar.xz |
[CIFS] Add support for TCP_NODELAY
mount option sockopt=TCP_NODELAY helpful for faster networks
boosting performance. Kernel bugzilla bug number 14032.
Signed-off-by: Steve French <sfrench@us.ibm.com>
-rw-r--r-- | fs/cifs/CHANGES | 4 | ||||
-rw-r--r-- | fs/cifs/cifsfs.h | 2 | ||||
-rw-r--r-- | fs/cifs/cifsglob.h | 1 | ||||
-rw-r--r-- | fs/cifs/connect.c | 30 |
4 files changed, 32 insertions, 5 deletions
diff --git a/fs/cifs/CHANGES b/fs/cifs/CHANGES index 7b2600b..49503d2 100644 --- a/fs/cifs/CHANGES +++ b/fs/cifs/CHANGES @@ -1,3 +1,7 @@ +Version 1.62 +------------ +Add sockopt=TCP_NODELAY mount option. + Version 1.61 ------------ Fix append problem to Samba servers (files opened with O_APPEND could diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h index ac2b24c..78c1b86 100644 --- a/fs/cifs/cifsfs.h +++ b/fs/cifs/cifsfs.h @@ -113,5 +113,5 @@ extern long cifs_ioctl(struct file *filep, unsigned int cmd, unsigned long arg); extern const struct export_operations cifs_export_ops; #endif /* EXPERIMENTAL */ -#define CIFS_VERSION "1.61" +#define CIFS_VERSION "1.62" #endif /* _CIFSFS_H */ diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 4b35f7e..ed751bb 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -149,6 +149,7 @@ struct TCP_Server_Info { bool svlocal:1; /* local server or remote */ bool noblocksnd; /* use blocking sendmsg */ bool noautotune; /* do not autotune send buf sizes */ + bool tcp_nodelay; atomic_t inFlight; /* number of requests on the wire to server */ #ifdef CONFIG_CIFS_STATS2 atomic_t inSend; /* requests trying to send */ diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 3bbcaa7..2e9e09c 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -98,7 +98,7 @@ struct smb_vol { bool nostrictsync:1; /* do not force expensive SMBflush on every sync */ unsigned int rsize; unsigned int wsize; - unsigned int sockopt; + bool sockopt_tcp_nodelay:1; unsigned short int port; char *prepath; }; @@ -1142,9 +1142,11 @@ cifs_parse_mount_options(char *options, const char *devname, simple_strtoul(value, &value, 0); } } else if (strnicmp(data, "sockopt", 5) == 0) { - if (value && *value) { - vol->sockopt = - simple_strtoul(value, &value, 0); + if (!value || !*value) { + cERROR(1, ("no socket option specified")); + continue; + } else if (strnicmp(value, "TCP_NODELAY", 11) == 0) { + vol->sockopt_tcp_nodelay = 1; } } else if (strnicmp(data, "netbiosname", 4) == 0) { if (!value || !*value || (*value == ' ')) { @@ -1514,6 +1516,7 @@ cifs_get_tcp_session(struct smb_vol *volume_info) tcp_ses->noblocksnd = volume_info->noblocksnd; tcp_ses->noautotune = volume_info->noautotune; + tcp_ses->tcp_nodelay = volume_info->sockopt_tcp_nodelay; atomic_set(&tcp_ses->inFlight, 0); init_waitqueue_head(&tcp_ses->response_q); init_waitqueue_head(&tcp_ses->request_q); @@ -1764,6 +1767,7 @@ static int ipv4_connect(struct TCP_Server_Info *server) { int rc = 0; + int val; bool connected = false; __be16 orig_port = 0; struct socket *socket = server->ssocket; @@ -1845,6 +1849,14 @@ ipv4_connect(struct TCP_Server_Info *server) socket->sk->sk_rcvbuf = 140 * 1024; } + if (server->tcp_nodelay) { + val = 1; + rc = kernel_setsockopt(socket, SOL_TCP, TCP_NODELAY, + (char *)&val, sizeof(val)); + if (rc) + cFYI(1, ("set TCP_NODELAY socket option error %d", rc)); + } + cFYI(1, ("sndbuf %d rcvbuf %d rcvtimeo 0x%lx", socket->sk->sk_sndbuf, socket->sk->sk_rcvbuf, socket->sk->sk_rcvtimeo)); @@ -1916,6 +1928,7 @@ static int ipv6_connect(struct TCP_Server_Info *server) { int rc = 0; + int val; bool connected = false; __be16 orig_port = 0; struct socket *socket = server->ssocket; @@ -1987,6 +2000,15 @@ ipv6_connect(struct TCP_Server_Info *server) */ socket->sk->sk_rcvtimeo = 7 * HZ; socket->sk->sk_sndtimeo = 5 * HZ; + + if (server->tcp_nodelay) { + val = 1; + rc = kernel_setsockopt(socket, SOL_TCP, TCP_NODELAY, + (char *)&val, sizeof(val)); + if (rc) + cFYI(1, ("set TCP_NODELAY socket option error %d", rc)); + } + server->ssocket = socket; return rc; |