block: use bio_has_data() to check for data carrying bio

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
git-mirror · Oct 9, 2008 · a9c701e · a9c701e
1 parent 7a67f63
commit a9c701e
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Showing 2 changed files with 2 additions and 5 deletions.
diff --git a/block/blk-core.c b/block/blk-core.c
@@ -1490,10 +1490,7 @@ void submit_bio(int rw, struct bio *bio)
 	 * If it's a regular read/write or a barrier with data attached,
 	 * go through the normal accounting stuff before submission.
 	 */
-	if (!bio_empty_barrier(bio)) {
-
-		BIO_BUG_ON(!bio->bi_size);
-		BIO_BUG_ON(!bio->bi_io_vec);
+	if (bio_has_data(bio)) {
 
 		if (rw & WRITE) {
 			count_vm_events(PGPGOUT, count);

diff --git a/include/linux/bio.h b/include/linux/bio.h
@@ -185,7 +185,7 @@ struct bio {
 #define bio_failfast(bio)	((bio)->bi_rw & (1 << BIO_RW_FAILFAST))
 #define bio_rw_ahead(bio)	((bio)->bi_rw & (1 << BIO_RW_AHEAD))
 #define bio_rw_meta(bio)	((bio)->bi_rw & (1 << BIO_RW_META))
-#define bio_empty_barrier(bio)	(bio_barrier(bio) && !(bio)->bi_size)
+#define bio_empty_barrier(bio)	(bio_barrier(bio) && !bio_has_data(bio))
 
 static inline unsigned int bio_cur_sectors(struct bio *bio)
 {