diff options
| author | Shahar S Matityahu <shahar.s.matityahu@intel.com> | 2018-09-20 14:28:30 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2018-09-24 09:20:28 +0200 |
| commit | d9d83fd0d928ebffea7af2267745995ef50ec6c2 (patch) | |
| tree | 41b7026ed359ae1f3e3221bb48e8a584224fdd09 | |
| parent | ea80c5832dedd40acd24514159045c7b0b0d8759 (diff) | |
backports: add wait_event_killable_timeout backport support
Allow using wait_event_killable_timeout function in kernel
older then 4.13
Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | backport/backport-include/linux/wait.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/backport/backport-include/linux/wait.h b/backport/backport-include/linux/wait.h index c4b1114e..15a674cf 100644 --- a/backport/backport-include/linux/wait.h +++ b/backport/backport-include/linux/wait.h @@ -78,6 +78,21 @@ wait_on_bit_timeout(void *word, int bit, unsigned mode, unsigned long timeout) #if LINUX_VERSION_IS_LESS(4,13,0) #define wait_queue_entry_t wait_queue_t + +#define wait_event_killable_timeout(wq_head, condition, timeout) \ +({ \ + long __ret = timeout; \ + might_sleep(); \ + if (!___wait_cond_timeout(condition)) \ + __ret = __wait_event_killable_timeout(wq_head, \ + condition, timeout); \ + __ret; \ +}) + +#define __wait_event_killable_timeout(wq_head, condition, timeout) \ + ___wait_event(wq_head, ___wait_cond_timeout(condition), \ + TASK_KILLABLE, 0, timeout, \ + __ret = schedule_timeout(__ret)) #endif #endif /* __BACKPORT_LINUX_WAIT_H */ |