summaryrefslogtreecommitdiffstats
path: root/include/linux/bio.h
diff options
context:
space:
mode:
authorDavid Woodhouse2008-08-09 17:22:17 +0200
committerJens Axboe2008-10-09 08:56:01 +0200
commitd628eaef310533767ce68664873869c2d7f78f09 (patch)
tree12d6a9e6db000d89deb7ab01d55d2e7b9e6f42c5 /include/linux/bio.h
parenthighmem: use bio_has_data() in the bounce path (diff)
downloadkernel-qcow2-linux-d628eaef310533767ce68664873869c2d7f78f09.tar.gz
kernel-qcow2-linux-d628eaef310533767ce68664873869c2d7f78f09.tar.xz
kernel-qcow2-linux-d628eaef310533767ce68664873869c2d7f78f09.zip
Fix up comments about matching flags between bio and rq
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'include/linux/bio.h')
-rw-r--r--include/linux/bio.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h
index dbeb66f813ab..17f1fbdb31bf 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -150,8 +150,8 @@ struct bio {
* bit 3 -- fail fast, don't want low level driver retries
* bit 4 -- synchronous I/O hint: the block layer will unplug immediately
*/
-#define BIO_RW 0
-#define BIO_RW_AHEAD 1
+#define BIO_RW 0 /* Must match RW in req flags (blkdev.h) */
+#define BIO_RW_AHEAD 1 /* Must match FAILFAST in req flags */
#define BIO_RW_BARRIER 2
#define BIO_RW_FAILFAST 3
#define BIO_RW_SYNC 4