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authorFrederic Weisbecker <fweisbec@gmail.com>2010-02-27 16:18:46 +0100
committerFrederic Weisbecker <fweisbec@gmail.com>2010-02-27 16:18:46 +0100
commit018cbffe6819f6f8db20a0a3acd9bab9bfd667e4 (patch)
treefadde2521591998dc653fa094c636e8a547e620d /kernel/sys.c
parentperf_event, amd: Fix spinlock initialization (diff)
parentLinux 2.6.33 (diff)
Merge commit 'v2.6.33' into perf/core
Merge reason: __percpu annotations need the corresponding sparse address space definition upstream. Conflicts: tools/perf/util/probe-event.c (trivial)
Diffstat (limited to 'kernel/sys.c')
-rw-r--r--kernel/sys.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sys.c b/kernel/sys.c
index 26a6b73a6b85..18bde979f346 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -222,6 +222,7 @@ SYSCALL_DEFINE2(getpriority, int, which, int, who)
if (which > PRIO_USER || which < PRIO_PROCESS)
return -EINVAL;
+ rcu_read_lock();
read_lock(&tasklist_lock);
switch (which) {
case PRIO_PROCESS:
@@ -267,6 +268,7 @@ SYSCALL_DEFINE2(getpriority, int, which, int, who)
}
out_unlock:
read_unlock(&tasklist_lock);
+ rcu_read_unlock();
return retval;
}