f2fs: avoid __GFP_NOFAIL in f2fs_bio_alloc

__f2fs_bio_alloc() won't fail due to memory pool backend, remove unneeded
__GFP_NOFAIL flag in __f2fs_bio_alloc().
Signed-off-by: NChao Yu <yuchao0@huawei.com>
Signed-off-by: NJaegeuk Kim <jaegeuk@kernel.org>

fs/f2fs/data.c

@@ -54,17 +54,13 @@ static inline struct bio *__f2fs_bio_alloc(gfp_t gfp_mask,
 	return bio_alloc_bioset(gfp_mask, nr_iovecs, &f2fs_bioset);
 }
 
-struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool no_fail)
+struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool noio)
 {
-	struct bio *bio;
-
-	if (no_fail) {
+	if (noio) {
 		/* No failure on bio allocation */
-		bio = __f2fs_bio_alloc(GFP_NOIO, npages);
-		if (!bio)
-			bio = __f2fs_bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
-		return bio;
+		return __f2fs_bio_alloc(GFP_NOIO, npages);
 	}
+
 	if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
 		f2fs_show_injection_info(sbi, FAULT_ALLOC_BIO);
 		return NULL;

fs/f2fs/f2fs.h

@@ -3341,7 +3341,7 @@ void f2fs_destroy_checkpoint_caches(void);
  */
 int __init f2fs_init_bioset(void);
 void f2fs_destroy_bioset(void);
-struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool no_fail);
+struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool noio);
 int f2fs_init_bio_entry_cache(void);
 void f2fs_destroy_bio_entry_cache(void);
 void f2fs_submit_bio(struct f2fs_sb_info *sbi,