bio: safeguard REQ_ALLOC_CACHE bio put

[platform/kernel/linux-starfive.git] / block / bio.c

diff --git a/block/bio.c b/block/bio.c
index 7cb7d2f..0a14af9 100644 (file)
--- a/block/bio.c
+++ b/block/bio.c
@@ -567,7 +567,7 @@ EXPORT_SYMBOL(bio_alloc_bioset);
  * be reused by calling bio_uninit() before calling bio_init() again.
  *
  * Note that unlike bio_alloc() or bio_alloc_bioset() allocations from this
- * function are not backed by a mempool can can fail.  Do not use this function
+ * function are not backed by a mempool can fail.  Do not use this function
  * for allocations in the file system I/O path.
  *
  * Returns: Pointer to new bio on success, NULL on failure.
@@ -741,7 +741,7 @@ void bio_put(struct bio *bio)
                        return;
        }
 
-       if (bio->bi_opf & REQ_ALLOC_CACHE) {
+       if ((bio->bi_opf & REQ_ALLOC_CACHE) && !WARN_ON_ONCE(in_interrupt())) {
                struct bio_alloc_cache *cache;
 
                bio_uninit(bio);