[PATCH v5 6/6] block/rbd: drop qemu_rbd_refresh_limits

[Ilya Dryomov <idryomov@gmail.com>]

From: Peter Lieven <pl@kamp.de>

librbd supports 1 byte alignment for all aio operations.

Currently, there is no API call to query limits from the Ceph
ObjectStore backend.  So drop the bdrv_refresh_limits completely
until there is such an API call.

Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
---
 block/rbd.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/block/rbd.c b/block/rbd.c
index 3152bc8ba00a..01a7b94d6257 100644
--- a/block/rbd.c
+++ b/block/rbd.c
@@ -240,14 +240,6 @@ done:
     return;
 }
 
-
-static void qemu_rbd_refresh_limits(BlockDriverState *bs, Error **errp)
-{
-    /* XXX Does RBD support AIO on less than 512-byte alignment? */
-    bs->bl.request_alignment = 512;
-}
-
-
 static int qemu_rbd_set_auth(rados_t cluster, BlockdevOptionsRbd *opts,
                              Error **errp)
 {
@@ -1482,7 +1474,6 @@ static BlockDriver bdrv_rbd = {
     .format_name            = "rbd",
     .instance_size          = sizeof(BDRVRBDState),
     .bdrv_parse_filename    = qemu_rbd_parse_filename,
-    .bdrv_refresh_limits    = qemu_rbd_refresh_limits,
     .bdrv_file_open         = qemu_rbd_open,
     .bdrv_close             = qemu_rbd_close,
     .bdrv_reopen_prepare    = qemu_rbd_reopen_prepare,
-- 
2.19.2