From: Omar Sandoval <[email protected]> Make sure the user passed the right value to sbitmap_queue_min_shallow_depth().
Acked-by: Paolo Valente <[email protected]> Signed-off-by: Omar Sandoval <[email protected]> Signed-off-by: Jens Axboe <[email protected]> --- lib/sbitmap.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/sbitmap.c b/lib/sbitmap.c index d21473b42465..8f0950fbaa5c 100644 --- a/lib/sbitmap.c +++ b/lib/sbitmap.c @@ -402,6 +402,8 @@ int __sbitmap_queue_get_shallow(struct sbitmap_queue *sbq, unsigned int hint, depth; int nr; + WARN_ON_ONCE(shallow_depth < sbq->min_shallow_depth); + hint = this_cpu_read(*sbq->alloc_hint); depth = READ_ONCE(sbq->sb.depth); if (unlikely(hint >= depth)) { -- 2.7.4
