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authorMike Galbraith <umgwanakikbuti@gmail.com>2015-02-18 16:05:28 +0100
committerAnders Roxell <anders.roxell@linaro.org>2015-06-01 12:03:36 +0200
commit3837750c6c09a6dae64b1159a10ab810935033f9 (patch)
treead6a59cf18c27845fb4f81775e3c6c8563aae94a
parent11d2c47e7f98233b61c53709cd204d2188b220a8 (diff)
downloadlinux-linaro-stable-3837750c6c09a6dae64b1159a10ab810935033f9.tar.gz
sunrpc: make svc_xprt_do_enqueue() use get_cpu_light()
|BUG: sleeping function called from invalid context at kernel/locking/rtmutex.c:915 |in_atomic(): 1, irqs_disabled(): 0, pid: 3194, name: rpc.nfsd |Preemption disabled at:[<ffffffffa06bf0bb>] svc_xprt_received+0x4b/0xc0 [sunrpc] |CPU: 6 PID: 3194 Comm: rpc.nfsd Not tainted 3.18.7-rt1 #9 |Hardware name: MEDION MS-7848/MS-7848, BIOS M7848W08.404 11/06/2014 | ffff880409630000 ffff8800d9a33c78 ffffffff815bdeb5 0000000000000002 | 0000000000000000 ffff8800d9a33c98 ffffffff81073c86 ffff880408dd6008 | ffff880408dd6000 ffff8800d9a33cb8 ffffffff815c3d84 ffff88040b3ac000 |Call Trace: | [<ffffffff815bdeb5>] dump_stack+0x4f/0x9e | [<ffffffff81073c86>] __might_sleep+0xe6/0x150 | [<ffffffff815c3d84>] rt_spin_lock+0x24/0x50 | [<ffffffffa06beec0>] svc_xprt_do_enqueue+0x80/0x230 [sunrpc] | [<ffffffffa06bf0bb>] svc_xprt_received+0x4b/0xc0 [sunrpc] | [<ffffffffa06c03ed>] svc_add_new_perm_xprt+0x6d/0x80 [sunrpc] | [<ffffffffa06b2693>] svc_addsock+0x143/0x200 [sunrpc] | [<ffffffffa072e69c>] write_ports+0x28c/0x340 [nfsd] | [<ffffffffa072d2ac>] nfsctl_transaction_write+0x4c/0x80 [nfsd] | [<ffffffff8117ee83>] vfs_write+0xb3/0x1d0 | [<ffffffff8117f889>] SyS_write+0x49/0xb0 | [<ffffffff815c4556>] system_call_fastpath+0x16/0x1b Cc: stable-rt@vger.kernel.org Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
-rw-r--r--net/sunrpc/svc_xprt.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c
index a4acaf2bcf18..22ca25818120 100644
--- a/net/sunrpc/svc_xprt.c
+++ b/net/sunrpc/svc_xprt.c
@@ -349,9 +349,9 @@ void svc_xprt_enqueue(struct svc_xprt *xprt)
if (!svc_xprt_has_something_to_do(xprt))
return;
- cpu = get_cpu();
+ cpu = get_cpu_light();
pool = svc_pool_for_cpu(xprt->xpt_server, cpu);
- put_cpu();
+ put_cpu_light();
spin_lock_bh(&pool->sp_lock);