After checking all possible call chains to kmalloc here, my tool finds that kmalloc is never called in atomic context. Thus GFP_ATOMIC is not necessary, and it can be replaced with GFP_KERNEL.
This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <[email protected]> --- block/blk-tag.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-tag.c b/block/blk-tag.c index 09f19c6..84db7f663 100644 --- a/block/blk-tag.c +++ b/block/blk-tag.c @@ -124,7 +124,7 @@ static struct blk_queue_tag *__blk_queue_init_tags(struct request_queue *q, { struct blk_queue_tag *tags; - tags = kmalloc(sizeof(struct blk_queue_tag), GFP_ATOMIC); + tags = kmalloc(sizeof(struct blk_queue_tag), GFP_KERNEL); if (!tags) goto fail; -- 1.7.9.5
