diff options
| author | Richard Yao <[email protected]> | 2015-08-31 11:36:32 -0400 |
|---|---|---|
| committer | Richard Yao <[email protected]> | 2015-09-02 12:39:08 -0400 |
| commit | 782b2c326ea445c5cab0c1b0373d64d5e83cc5d4 (patch) | |
| tree | 7a20581b82ff8f6833d714304a02f0c369bffb24 | |
| parent | 69de34219af4a4d100cc5ed155a68ab03393fca4 (diff) | |
VDEV_REQ_FUA should be mapped to REQ_FUA
Pre-2.6.37 kernels support REQ_FUA in request flags, but not in BIO
flags. zvols are the only consumer of VDEV_REQ_FUA and since they are
passed requests, they should be obey the REQ_FUA flag like later
kernels. This optimization will only matter on 2.6.36 and 2.6.37 because
the zvol rework changes things to use bio, where we no longer are able
to distinguish on earlier kernels
Signed-off-by: Richard Yao <[email protected]>
| -rw-r--r-- | include/linux/blkdev_compat.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/blkdev_compat.h b/include/linux/blkdev_compat.h index ef6fa3bbd..cdcf12c42 100644 --- a/include/linux/blkdev_compat.h +++ b/include/linux/blkdev_compat.h @@ -458,7 +458,7 @@ bio_set_flags_failfast(struct block_device *bdev, int *flags) #else #define VDEV_WRITE_FLUSH_FUA WRITE_BARRIER #define VDEV_REQ_FLUSH REQ_HARDBARRIER -#define VDEV_REQ_FUA REQ_HARDBARRIER +#define VDEV_REQ_FUA REQ_FUA #endif /* |