diff options
| author | Tejun Heo <tj@kernel.org> | 2013-06-13 19:38:26 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2013-06-13 19:42:22 -0700 |
| commit | 2b0e53a7c8a6972755c0f0152d7fad2289fdc5eb (patch) | |
| tree | bf427cbe4b9d85cd5651b01f2f18668e8d12ed45 /include/linux/wait.h | |
| parent | ea15f8ccdb430af1e8bc9b4e19a230eb4c356777 (diff) | |
| parent | dbece3a0f1ef0b19aff1cc6ed0942fec9ab98de1 (diff) | |
Merge branch 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu into for-3.11
This is to receive percpu_refcount which will replace atomic_t
reference count in cgroup_subsys_state.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'include/linux/wait.h')
| -rw-r--r-- | include/linux/wait.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/include/linux/wait.h b/include/linux/wait.h index ac38be2692d8..1133695eb067 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -217,6 +217,8 @@ do { \ if (!ret) \ break; \ } \ + if (!ret && (condition)) \ + ret = 1; \ finish_wait(&wq, &__wait); \ } while (0) @@ -233,8 +235,9 @@ do { \ * wake_up() has to be called after changing any variable that could * change the result of the wait condition. * - * The function returns 0 if the @timeout elapsed, and the remaining - * jiffies if the condition evaluated to true before the timeout elapsed. + * The function returns 0 if the @timeout elapsed, or the remaining + * jiffies (at least 1) if the @condition evaluated to %true before + * the @timeout elapsed. */ #define wait_event_timeout(wq, condition, timeout) \ ({ \ @@ -302,6 +305,8 @@ do { \ ret = -ERESTARTSYS; \ break; \ } \ + if (!ret && (condition)) \ + ret = 1; \ finish_wait(&wq, &__wait); \ } while (0) @@ -318,9 +323,10 @@ do { \ * wake_up() has to be called after changing any variable that could * change the result of the wait condition. * - * The function returns 0 if the @timeout elapsed, -ERESTARTSYS if it - * was interrupted by a signal, and the remaining jiffies otherwise - * if the condition evaluated to true before the timeout elapsed. + * Returns: + * 0 if the @timeout elapsed, -%ERESTARTSYS if it was interrupted by + * a signal, or the remaining jiffies (at least 1) if the @condition + * evaluated to %true before the @timeout elapsed. */ #define wait_event_interruptible_timeout(wq, condition, timeout) \ ({ \ |