Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-09-21 07:23:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

locking/rwbase: Properly match set_and_save_state() to restore_state()

Browse Source 
Noticed while looking at the readers race.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lkml.kernel.org/r/20210909110203.828203010@infradead.org
This commit is contained in:
Peter Zijlstra 2021-09-09 12:59:17 +02:00
parent 6880fa6c56
commit 7687201e37
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/locking/rwbase_rt.c
View File

@ -220,7 +220,7 @@ static int __sched rwbase_write_lock(struct rwbase_rt *rwb,
for (; atomic_read(&rwb->readers);) {
/* Optimized out for rwlocks */
if (rwbase_signal_pending_state(state, current)) {
__set_current_state(TASK_RUNNING);
rwbase_restore_current_state();
__rwbase_write_unlock(rwb, 0, flags);
return -EINTR;
}