linux-ext4 - [PATCH 09/10] ext4: stop using bio

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Date:   Fri,  4 Mar 2022 19:01:04 +0100
From:   Christoph Hellwig <hch@....de>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Song Liu <song@...nel.org>, "Theodore Ts'o" <tytso@....edu>,
        linux-block@...r.kernel.org, dm-devel@...hat.com,
        linux-raid@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: [PATCH 09/10] ext4: stop using bio_devname

Use the %pg format specifier to save on stack consuption and code size.

Signed-off-by: Christoph Hellwig <hch@....de>
---
 fs/ext4/page-io.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 1253982268730..18373fa529225 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -323,10 +323,9 @@ static void ext4_end_bio(struct bio *bio)
 {
 	ext4_io_end_t *io_end = bio->bi_private;
 	sector_t bi_sector = bio->bi_iter.bi_sector;
-	char b[BDEVNAME_SIZE];
 
-	if (WARN_ONCE(!io_end, "io_end is NULL: %s: sector %Lu len %u err %d\n",
-		      bio_devname(bio, b),
+	if (WARN_ONCE(!io_end, "io_end is NULL: %pg: sector %Lu len %u err %d\n",
+		      bio->bi_bdev,
 		      (long long) bio->bi_iter.bi_sector,
 		      (unsigned) bio_sectors(bio),
 		      bio->bi_status)) {
-- 
2.30.2