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authorMike Christie <mchristi@redhat.com>2016-06-05 14:31:46 -0500
committerJens Axboe <axboe@fb.com>2016-06-07 13:41:38 -0600
commit511116669346a0029b7e54eaaa8e5a7029f89ab3 (patch)
tree682fc23a7cf203d3762c7f284598a2895914ed5e /drivers/md/dm-io.c
parenta8ebb056a8aeb58aafef0af241a6b3ac34ac86bd (diff)
downloadlinux-511116669346a0029b7e54eaaa8e5a7029f89ab3.tar.bz2
dm: use op_is_write instead of checking for REQ_WRITE
We currently set REQ_WRITE/WRITE for all non READ IOs like discard, flush, writesame, etc. In the next patches where we no longer set up the op as a bitmap, we will not be able to detect a operation direction like writesame by testing if REQ_WRITE is set. This has dm use the op_is_write helper which will do the right thing. Signed-off-by: Mike Christie <mchristi@redhat.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/dm-io.c')
-rw-r--r--drivers/md/dm-io.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c
index 50f17e32951a..26e9a85e3356 100644
--- a/drivers/md/dm-io.c
+++ b/drivers/md/dm-io.c
@@ -409,7 +409,7 @@ static int sync_io(struct dm_io_client *client, unsigned int num_regions,
struct io *io;
struct sync_io sio;
- if (num_regions > 1 && (rw & RW_MASK) != WRITE) {
+ if (num_regions > 1 && !op_is_write(rw)) {
WARN_ON(1);
return -EIO;
}
@@ -442,7 +442,7 @@ static int async_io(struct dm_io_client *client, unsigned int num_regions,
{
struct io *io;
- if (num_regions > 1 && (rw & RW_MASK) != WRITE) {
+ if (num_regions > 1 && !op_is_write(rw)) {
WARN_ON(1);
fn(1, context);
return -EIO;