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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-11 14:38:03 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2009-03-19 15:17:34 -0400 |
| commit | 25fe6142a57c720452c5e9ddbc1f32309c1e5c19 (patch) | |
| tree | 54ace9992e13ff9d3644bbb98ec8b74baf22b241 /net/sunrpc/xprtsock.c | |
| parent | 7d1e8255cf959fba7ee2317550dfde39f0b936ae (diff) | |
| download | lwn-25fe6142a57c720452c5e9ddbc1f32309c1e5c19.tar.gz lwn-25fe6142a57c720452c5e9ddbc1f32309c1e5c19.zip | |
SUNRPC: Add a sysctl to control the duration of the socket linger timeout
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/xprtsock.c')
| -rw-r--r-- | net/sunrpc/xprtsock.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index b51f58b95c39..42222b4dd76d 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -50,6 +50,7 @@ unsigned int xprt_min_resvport = RPC_DEF_MIN_RESVPORT; unsigned int xprt_max_resvport = RPC_DEF_MAX_RESVPORT; #define XS_TCP_LINGER_TO (15U * HZ) +static unsigned int xs_tcp_fin_timeout __read_mostly = XS_TCP_LINGER_TO; /* * We can register our own files under /proc/sys/sunrpc by @@ -119,6 +120,14 @@ static ctl_table xs_tunables_table[] = { .extra2 = &xprt_max_resvport_limit }, { + .procname = "tcp_fin_timeout", + .data = &xs_tcp_fin_timeout, + .maxlen = sizeof(xs_tcp_fin_timeout), + .mode = 0644, + .proc_handler = &proc_dointvec_jiffies, + .strategy = sysctl_jiffies + }, + { .ctl_name = 0, }, }; @@ -1222,7 +1231,7 @@ static void xs_tcp_state_change(struct sock *sk) clear_bit(XPRT_CONNECTED, &xprt->state); clear_bit(XPRT_CLOSE_WAIT, &xprt->state); smp_mb__after_clear_bit(); - xs_tcp_schedule_linger_timeout(xprt, XS_TCP_LINGER_TO); + xs_tcp_schedule_linger_timeout(xprt, xs_tcp_fin_timeout); break; case TCP_CLOSE_WAIT: /* The server initiated a shutdown of the socket */ @@ -1239,7 +1248,7 @@ static void xs_tcp_state_change(struct sock *sk) break; case TCP_LAST_ACK: set_bit(XPRT_CLOSING, &xprt->state); - xs_tcp_schedule_linger_timeout(xprt, XS_TCP_LINGER_TO); + xs_tcp_schedule_linger_timeout(xprt, xs_tcp_fin_timeout); smp_mb__before_clear_bit(); clear_bit(XPRT_CONNECTED, &xprt->state); smp_mb__after_clear_bit(); |