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Commit 72d622b4 authored by Theodore Ts'o's avatar Theodore Ts'o
Browse files

ext4: replace BUG_ON with WARN_ONCE in ext4_end_bio() 



Add fallback code and a WARN_ONCE() call instead of a BUG_ON() in
the ext4_end_bio() function.

Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent dddbd6ac

fs/ext4/page-io.c

+10 −1
Original line number Diff line number Diff line
@@ -297,8 +297,17 @@ 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];



	BUG_ON(!io_end);

	if (WARN_ONCE(!io_end, "io_end is NULL: %s: sector %Lu len %u err %d\n",

		      bdevname(bio->bi_bdev, b),

		      (long long) bio->bi_iter.bi_sector,

		      (unsigned) bio_sectors(bio),

		      bio->bi_error)) {

		ext4_finish_bio(bio);

		bio_put(bio);

		return;

	}

	bio->bi_end_io = NULL;



	if (bio->bi_error) {