diff options
| author | Ilya Dryomov <idryomov@gmail.com> | 2017-01-25 20:16:22 +0300 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2017-02-20 14:16:14 +0300 |
| commit | 5bc3fb177548503735bcc35fe98475d883740ecb (patch) | |
| tree | f48c80317a9fc3c82f436bee3cddb75bf8750025 /drivers/block/rbd.c | |
| parent | 03acf083355ffeb89b9269d205004d6d888fff99 (diff) | |
| download | linux-5bc3fb177548503735bcc35fe98475d883740ecb.tar.xz | |
rbd: use rbd_obj_bytes() more
Returning u64 doesn't make sense: max header->obj_order is 25 and
ceph_file_layout::object_size is u32.
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jason Dillaman <dillaman@redhat.com>
Diffstat (limited to 'drivers/block/rbd.c')
| -rw-r--r-- | drivers/block/rbd.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index e2ffd4fffd06..55e30db0576d 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -971,6 +971,14 @@ static bool rbd_dev_ondisk_valid(struct rbd_image_header_ondisk *ondisk) } /* + * returns the size of an object in the image + */ +static u32 rbd_obj_bytes(struct rbd_image_header *header) +{ + return 1U << header->obj_order; +} + +/* * Fill an rbd image header with information from the given format 1 * on-disk header. */ @@ -1255,7 +1263,7 @@ static const char *rbd_segment_name(struct rbd_device *rbd_dev, u64 offset) static u64 rbd_segment_offset(struct rbd_device *rbd_dev, u64 offset) { - u64 segment_size = (u64) 1 << rbd_dev->header.obj_order; + u64 segment_size = rbd_obj_bytes(&rbd_dev->header); return offset & (segment_size - 1); } @@ -1263,7 +1271,7 @@ static u64 rbd_segment_offset(struct rbd_device *rbd_dev, u64 offset) static u64 rbd_segment_length(struct rbd_device *rbd_dev, u64 offset, u64 length) { - u64 segment_size = (u64) 1 << rbd_dev->header.obj_order; + u64 segment_size = rbd_obj_bytes(&rbd_dev->header); offset &= segment_size - 1; @@ -1275,14 +1283,6 @@ static u64 rbd_segment_length(struct rbd_device *rbd_dev, } /* - * returns the size of an object in the image - */ -static u64 rbd_obj_bytes(struct rbd_image_header *header) -{ - return 1 << header->obj_order; -} - -/* * bio helpers */ @@ -2721,7 +2721,7 @@ static int rbd_img_obj_parent_read_full(struct rbd_obj_request *obj_request) * child image to which the original request was to be sent. */ img_offset = obj_request->img_offset - obj_request->offset; - length = (u64)1 << rbd_dev->header.obj_order; + length = rbd_obj_bytes(&rbd_dev->header); /* * There is no defined parent data beyond the parent @@ -5130,7 +5130,7 @@ static int rbd_dev_v2_striping_info(struct rbd_device *rbd_dev) * out, and only fail if the image has non-default values. */ ret = -EINVAL; - obj_size = (u64)1 << rbd_dev->header.obj_order; + obj_size = rbd_obj_bytes(&rbd_dev->header); p = &striping_info_buf; stripe_unit = ceph_decode_64(&p); if (stripe_unit != obj_size) { |