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[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 19 years ago
parent
commit
0ea60b5ad8
1 changed files with 1 additions and 0 deletions
  1. 1 0
      fs/bio.c

+ 1 - 0
fs/bio.c

@@ -126,6 +126,7 @@ static void bio_fs_destructor(struct bio *bio)
 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;