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| author | Robert Richter <robert.richter@amd.com> | 2010-10-11 19:26:50 +0200 |
|---|---|---|
| committer | Robert Richter <robert.richter@amd.com> | 2010-10-11 19:26:50 +0200 |
| commit | ad0f7cfaa85fc033523a09ab1f3dd6b8ded3dff5 (patch) | |
| tree | 2565121e4b9945d953e02c77a2e53065b3789aa4 /kernel/sys.c | |
| parent | 86c8c04792f152c5469023885510140dd34817bc (diff) | |
| parent | c7a27aa4652c63172489a73f3961455650a79a7f (diff) | |
Merge branch 'oprofile/urgent' (early part) into oprofile/perf
Diffstat (limited to 'kernel/sys.c')
| -rw-r--r-- | kernel/sys.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/sys.c b/kernel/sys.c index e9ad44489828..7f5a0cd296a9 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -931,6 +931,7 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid) pgid = pid; if (pgid < 0) return -EINVAL; + rcu_read_lock(); /* From this point forward we keep holding onto the tasklist lock * so that our parent does not change from under us. -DaveM @@ -984,6 +985,7 @@ SYSCALL_DEFINE2(setpgid, pid_t, pid, pid_t, pgid) out: /* All paths lead to here, thus we are safe. -DaveM */ write_unlock_irq(&tasklist_lock); + rcu_read_unlock(); return err; } |