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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: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2017-04-30 20:08:05 -04:00
parent dddbd6ac8f
commit 72d622b422
1 changed files with 10 additions and 1 deletions
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11
fs/ext4/page-io.c
View File

@ -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) {