Commit be217884 authored by Adam Crume's avatar Adam Crume Committed by Stefan Hajnoczi
Browse files

rbd: Add support for bdrv_invalidate_cache 

This fixes Ceph issue 2467: ttp://tracker.ceph.com/issues/2467



[Dropped return r in void function as suggested by Josh Durgin
<josh.durgin@inktank.com>.
--Stefan]

Signed-off-by: default avatarAdam Crume <adamcrume@gmail.com>
Reviewed-by: default avatarJosh Durgin <josh.durgin@inktank.com>
Reviewed-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
Message-id: 1412880272-3154-1-git-send-email-adamcrume@gmail.com
Signed-off-by: default avatarStefan Hajnoczi <stefanha@redhat.com>
parent da725d0b

block/rbd.c

+15 −0
Original line number Diff line number Diff line
@@ -887,6 +887,18 @@ static BlockAIOCB* qemu_rbd_aio_discard(BlockDriverState *bs, 
}

#endif



#ifdef LIBRBD_SUPPORTS_INVALIDATE

static void qemu_rbd_invalidate_cache(BlockDriverState *bs,

                                      Error **errp)

{

    BDRVRBDState *s = bs->opaque;

    int r = rbd_invalidate_cache(s->image);

    if (r < 0) {

        error_setg_errno(errp, -r, "Failed to invalidate the cache");

    }

}

#endif



static QemuOptsList qemu_rbd_create_opts = {

    .name = "rbd-create-opts",

    .head = QTAILQ_HEAD_INITIALIZER(qemu_rbd_create_opts.head),
@@ -936,6 +948,9 @@ static BlockDriver bdrv_rbd = { 
    .bdrv_snapshot_delete   = qemu_rbd_snap_remove,

    .bdrv_snapshot_list     = qemu_rbd_snap_list,

    .bdrv_snapshot_goto     = qemu_rbd_snap_rollback,

#ifdef LIBRBD_SUPPORTS_INVALIDATE

    .bdrv_invalidate_cache  = qemu_rbd_invalidate_cache,

#endif

};



static void bdrv_rbd_init(void)