Merge branch 'perf/urgent' into perf/core

Merge reason: We are going to queue up a dependent patch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2012-03-12 20:44:07 +01:00
297 changed files with 1888 additions and 997 deletions

View File

@@ -1918,7 +1918,6 @@ static int coredump_wait(int exit_code, struct core_state *core_state)
{
struct task_struct *tsk = current;
struct mm_struct *mm = tsk->mm;
struct completion *vfork_done;
int core_waiters = -EBUSY;
init_completion(&core_state->startup);
@@ -1930,22 +1929,9 @@ static int coredump_wait(int exit_code, struct core_state *core_state)
core_waiters = zap_threads(tsk, mm, core_state, exit_code);
up_write(&mm->mmap_sem);
if (unlikely(core_waiters < 0))
goto fail;
/*
* Make sure nobody is waiting for us to release the VM,
* otherwise we can deadlock when we wait on each other
*/
vfork_done = tsk->vfork_done;
if (vfork_done) {
tsk->vfork_done = NULL;
complete(vfork_done);
}
if (core_waiters)
if (core_waiters > 0)
wait_for_completion(&core_state->startup);
fail:
return core_waiters;
}