On 05/08/2018 09:58 AM, Anton Nefedov wrote:
Signed-off-by: Anton Nefedov <anton.nefe...@virtuozzo.com>
Reviewed-by: Alberto Garcia <be...@igalia.com>
---
block/mirror.c | 11 +++++++++++
1 file changed, 11 insertions(+)
Reviewed-by: Eric Blake <ebl...@redhat.com>
That said,
diff --git a/block/mirror.c b/block/mirror.c
index 820f512..a22ddef 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1098,6 +1098,15 @@ static BlockDriver bdrv_mirror_top = {
.bdrv_child_perm = bdrv_mirror_top_child_perm,
};
+static void mirror_top_set_supported_flags(BlockDriverState *bs)
+{
+ bs->supported_write_flags = BDRV_REQ_FUA &
+ bs->backing->bs->supported_write_flags;
+ bs->supported_zero_flags =
+ (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
+ bs->backing->bs->supported_zero_flags;
+}
+
This is a pretty short static function...
static void mirror_start_job(const char *job_id, BlockDriverState *bs,
int creation_flags, BlockDriverState *target,
const char *replaces, int64_t speed,
@@ -1163,6 +1172,8 @@ static void mirror_start_job(const char *job_id,
BlockDriverState *bs,
return;
}
+ mirror_top_set_supported_flags(mirror_top_bs);
...with exactly one caller. Wouldn't it be easier to just inline it?
+
/* Make sure that the source is not resized while the job is running */
s = block_job_create(job_id, driver, NULL, mirror_top_bs,
BLK_PERM_CONSISTENT_READ,
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
