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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-08-30 14:06:31 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-08-30 14:06:31 -0700 |
| commit | e4c3562e1bc79f912457cb062cd0c147026d4a1e (patch) | |
| tree | 2ac95b21da976c994ff723b876c6deab2a621cee | |
| parent | 46f4945e2b39dda4b832909434785483e028419d (diff) | |
| parent | 4bedcc28469a24fe481a8a31b3584e6070457ddb (diff) | |
| download | linux-e4c3562e1bc79f912457cb062cd0c147026d4a1e.tar.gz | |
Merge tag 'core-debugobjects-2021-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull debugobjects update from Thomas Gleixner:
"A single commit for debugobjects to make them work on PREEMPT_RT by
preventing object pool refill in atomic contexts"
* tag 'core-debugobjects-2021-08-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
debugobjects: Make them PREEMPT_RT aware
| -rw-r--r-- | lib/debugobjects.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/debugobjects.c b/lib/debugobjects.c index 9e14ae02306bc4..6946f8e204e395 100644 --- a/lib/debugobjects.c +++ b/lib/debugobjects.c @@ -557,7 +557,12 @@ __debug_object_init(void *addr, const struct debug_obj_descr *descr, int onstack struct debug_obj *obj; unsigned long flags; - fill_pool(); + /* + * On RT enabled kernels the pool refill must happen in preemptible + * context: + */ + if (!IS_ENABLED(CONFIG_PREEMPT_RT) || preemptible()) + fill_pool(); db = get_bucket((unsigned long) addr); |