diff options
| author | Dave Airlie <airlied@redhat.com> | 2024-11-04 14:25:33 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2024-11-04 14:25:33 +1000 |
| commit | 30169bb64580bd7bce9290c1952bf0aa6cc37fe5 (patch) | |
| tree | 94c6ab9dec68f5648a055752aad32d816bd27e11 /include/linux/closure.h | |
| parent | bcfe43f0ea77c42c2154fb79b99b7d1d82ac3231 (diff) | |
| parent | 59b723cd2adbac2a34fc8e12c74ae26ae45bf230 (diff) | |
Backmerge v6.12-rc6 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next
Backmerge Linus tree for some drm-fixes needed for msm and xe merges.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/linux/closure.h')
| -rw-r--r-- | include/linux/closure.h | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/include/linux/closure.h b/include/linux/closure.h index 2af44427107d..880fe85e35e9 100644 --- a/include/linux/closure.h +++ b/include/linux/closure.h @@ -454,4 +454,39 @@ do { \ __closure_wait_event(waitlist, _cond); \ } while (0) +#define __closure_wait_event_timeout(waitlist, _cond, _until) \ +({ \ + struct closure cl; \ + long _t; \ + \ + closure_init_stack(&cl); \ + \ + while (1) { \ + closure_wait(waitlist, &cl); \ + if (_cond) { \ + _t = max_t(long, 1L, _until - jiffies); \ + break; \ + } \ + _t = max_t(long, 0L, _until - jiffies); \ + if (!_t) \ + break; \ + closure_sync_timeout(&cl, _t); \ + } \ + closure_wake_up(waitlist); \ + closure_sync(&cl); \ + _t; \ +}) + +/* + * Returns 0 if timeout expired, remaining time in jiffies (at least 1) if + * condition became true + */ +#define closure_wait_event_timeout(waitlist, _cond, _timeout) \ +({ \ + unsigned long _until = jiffies + _timeout; \ + (_cond) \ + ? max_t(long, 1L, _until - jiffies) \ + : __closure_wait_event_timeout(waitlist, _cond, _until);\ +}) + #endif /* _LINUX_CLOSURE_H */ |