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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-07-17 16:01:03 -0400 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2011-07-17 16:01:03 -0400 |
| commit | 43cedbf0e8dfb9c5610eb7985d5f21263e313802 (patch) | |
| tree | 7758630292b6a276a3db72e63803ddc02c0a4444 /net/sunrpc/xprtsock.c | |
| parent | f85ef69ce08bc2209858135328335f668ba35bdb (diff) | |
| download | linux-stable-43cedbf0e8dfb9c5610eb7985d5f21263e313802.tar.gz linux-stable-43cedbf0e8dfb9c5610eb7985d5f21263e313802.tar.bz2 linux-stable-43cedbf0e8dfb9c5610eb7985d5f21263e313802.zip | |
SUNRPC: Ensure that we grab the XPRT_LOCK before calling xprt_alloc_slot
This throttles the allocation of new slots when the socket is busy
reconnecting and/or is out of buffer space.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/xprtsock.c')
| -rw-r--r-- | net/sunrpc/xprtsock.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index cd6c410fa8fa..adaa54c6a09a 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -755,6 +755,8 @@ static void xs_tcp_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task) if (task == NULL) goto out_release; req = task->tk_rqstp; + if (req == NULL) + goto out_release; if (req->rq_bytes_sent == 0) goto out_release; if (req->rq_bytes_sent == req->rq_snd_buf.len) |