Document that bio_alloc with __GFP_WAIT cannot fail.
Signed-off-by: Nikanth Karthikesan <[email protected]>
---
diff --git a/fs/bio.c b/fs/bio.c
index e0c9e54..5b5dfdd 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -348,6 +348,10 @@ err:
return NULL;
}
+/*
+ * This will not fail as long as __GFP_WAIT is specified
+ * in the gfp_mask, as mempool backing is used.
+ */
struct bio *bio_alloc(gfp_t gfp_mask, int nr_iovecs)
{
struct bio *bio = bio_alloc_bioset(gfp_mask, nr_iovecs, fs_bio_set);