[BLOCK] bio: init ->bi_bdev in bio_init()

For SG_IO requests, bio->bi_bdev may not be explicitly initialized. So make bio_init() clear the field to make sure it's always NULL or valid. Signed-off-by: Jens Axboe <axboe@suse.de>

[BLOCK] bio: init ->bi_bdev in bio_init()
For SG_IO requests, bio->bi_bdev may not be explicitly initialized. So make bio_init() clear the field to make sure it's always NULL or valid. Signed-off-by: Jens Axboe <axboe@suse.de>
Jens Axboe
1 parent 769db45b73
Showing 1 changed file with 1 additions and 0 deletions Side-by-side Diff
fs/bio.c
@@ -126,6 +126,7 @@
 inline void bio_init(struct bio *bio)
 {
 	bio->bi_next = NULL;
+	bio->bi_bdev = NULL;
 	bio->bi_flags = 1 << BIO_UPTODATE;
 	bio->bi_rw = 0;
 	bio->bi_vcnt = 0;
...	...	@@ -126,6 +126,7 @@
126	126	inline void bio_init(struct bio *bio)
127	127	{
128	128	bio->bi_next = NULL;
	129	+ bio->bi_bdev = NULL;
129	130	bio->bi_flags = 1 << BIO_UPTODATE;
130	131	bio->bi_rw = 0;
131	132	bio->bi_vcnt = 0;