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rbd: remove barriers from img_request_layered_{set,clear,test}()

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IMG_REQ_LAYERED is set in rbd_img_request_create(), and tested and
cleared in rbd_img_request_destroy() when the image request is about to
be destroyed.  The barriers are unnecessary.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ilya Dryomov 2020-01-30 13:54:59 +01:00
parent 072eaf3c0f
commit 94f4857f4b
1 changed files with 0 additions and 3 deletions
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3
drivers/block/rbd.c
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@ -1366,18 +1366,15 @@ static void rbd_osd_submit(struct ceph_osd_request *osd_req)
static void img_request_layered_set(struct rbd_img_request *img_request)
{
set_bit(IMG_REQ_LAYERED, &img_request->flags);
smp_mb();
}
static void img_request_layered_clear(struct rbd_img_request *img_request)
{
clear_bit(IMG_REQ_LAYERED, &img_request->flags);
smp_mb();
}
static bool img_request_layered_test(struct rbd_img_request *img_request)
{
smp_mb();
return test_bit(IMG_REQ_LAYERED, &img_request->flags) != 0;
}