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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-05 15:50:25 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-05 15:50:25 -0800
commit3e85fb9cd4f711d70c5d26baa86e438390731eab (patch)
tree85f0abea7e932a7e7c75cef2773fb648b35db1f4 /fs
parent055bf38d3d6069707e2d555cffdde629b8404ff2 (diff)
parentb24823e61bfd93d0e72088e4f5245287582ed289 (diff)
downloadop-kernel-dev-3e85fb9cd4f711d70c5d26baa86e438390731eab.zip
op-kernel-dev-3e85fb9cd4f711d70c5d26baa86e438390731eab.tar.gz
Merge branch 'akpm' (Andrew's patch bomb)
Merge the emailed seties of 19 patches from Andrew Morton * akpm: rapidio/tsi721: fix queue wrapping bug in inbound doorbell handler memcg: fix mapcount check in move charge code for anonymous page mm: thp: fix BUG on mm->nr_ptes alpha: fix 32/64-bit bug in futex support memcg: fix GPF when cgroup removal races with last exit debugobjects: Fix selftest for static warnings floppy/scsi: fix setting of BIO flags memcg: fix deadlock by inverting lrucare nesting drivers/rtc/rtc-r9701.c: fix crash in r9701_remove() c2port: class_create() returns an ERR_PTR pps: class_create() returns an ERR_PTR, not NULL hung_task: fix the broken rcu_lock_break() logic vfork: kill PF_STARTING coredump_wait: don't call complete_vfork_done() vfork: make it killable vfork: introduce complete_vfork_done() aio: wake up waiters when freeing unused kiocbs kprobes: return proper error code from register_kprobe() kmsg_dump: don't run on non-error paths by default
Diffstat (limited to 'fs')
-rw-r--r--fs/aio.c2
-rw-r--r--fs/exec.c18
2 files changed, 4 insertions, 16 deletions
diff --git a/fs/aio.c b/fs/aio.c
index 969beb0..67e4b90 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -490,6 +490,8 @@ static void kiocb_batch_free(struct kioctx *ctx, struct kiocb_batch *batch)
kmem_cache_free(kiocb_cachep, req);
ctx->reqs_active--;
}
+ if (unlikely(!ctx->reqs_active && ctx->dead))
+ wake_up_all(&ctx->wait);
spin_unlock_irq(&ctx->ctx_lock);
}
diff --git a/fs/exec.c b/fs/exec.c
index 92ce83a..153dee1 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1915,7 +1915,6 @@ 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);
@@ -1927,22 +1926,9 @@ 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;
}
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