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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-13 14:34:08 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-13 14:34:08 -0700 |
| commit | 201f92e2ca789d529418da8fa027d5457f0df024 (patch) | |
| tree | f1d88a50dc95c415a2c8e9ba571620d2ca4c151c /net | |
| parent | 6ac556daa7822fdda585e2c387739abb0646c6ef (diff) | |
| parent | ec0dd267bf7d08cb30e321e45a75fd40edd7e528 (diff) | |
| download | kernel-common-201f92e2ca789d529418da8fa027d5457f0df024.tar.gz kernel-common-201f92e2ca789d529418da8fa027d5457f0df024.tar.bz2 kernel-common-201f92e2ca789d529418da8fa027d5457f0df024.zip | |
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
SUNRPC: Fix use of static variable in rpcb_getport_async
NFSv4.1: update nfs4_fattr_bitmap_maxsz
SUNRPC: Fix a race between work-queue and rpc_killall_tasks
pnfs: write: Set mds_offset in the generic layer - it is needed by all LDs
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/rpcb_clnt.c | 2 | ||||
| -rw-r--r-- | net/sunrpc/sched.c | 27 |
2 files changed, 12 insertions, 17 deletions
diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c index 9a80a922c527..e45d2fbbe5a8 100644 --- a/net/sunrpc/rpcb_clnt.c +++ b/net/sunrpc/rpcb_clnt.c @@ -597,7 +597,7 @@ void rpcb_getport_async(struct rpc_task *task) u32 bind_version; struct rpc_xprt *xprt; struct rpc_clnt *rpcb_clnt; - static struct rpcbind_args *map; + struct rpcbind_args *map; struct rpc_task *child; struct sockaddr_storage addr; struct sockaddr *sap = (struct sockaddr *)&addr; diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index a27406b1654f..4814e246a874 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -616,30 +616,25 @@ static void __rpc_execute(struct rpc_task *task) BUG_ON(RPC_IS_QUEUED(task)); for (;;) { + void (*do_action)(struct rpc_task *); /* - * Execute any pending callback. + * Execute any pending callback first. */ - if (task->tk_callback) { - void (*save_callback)(struct rpc_task *); - - /* - * We set tk_callback to NULL before calling it, - * in case it sets the tk_callback field itself: - */ - save_callback = task->tk_callback; - task->tk_callback = NULL; - save_callback(task); - } else { + do_action = task->tk_callback; + task->tk_callback = NULL; + if (do_action == NULL) { /* * Perform the next FSM step. - * tk_action may be NULL when the task has been killed - * by someone else. + * tk_action may be NULL if the task has been killed. + * In particular, note that rpc_killall_tasks may + * do this at any time, so beware when dereferencing. */ - if (task->tk_action == NULL) + do_action = task->tk_action; + if (do_action == NULL) break; - task->tk_action(task); } + do_action(task); /* * Lockless check for whether task is sleeping or not. |