From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39793) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f82Ya-0006AY-0V for qemu-devel@nongnu.org; Mon, 16 Apr 2018 07:44:25 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f82YU-0005ky-Sk for qemu-devel@nongnu.org; Mon, 16 Apr 2018 07:44:23 -0400 From: Vladimir Sementsov-Ogievskiy Date: Mon, 16 Apr 2018 14:44:14 +0300 Message-Id: <20180416114414.18406-8-vsementsov@virtuozzo.com> In-Reply-To: <20180416114414.18406-1-vsementsov@virtuozzo.com> References: <20180416114414.18406-1-vsementsov@virtuozzo.com> Subject: [Qemu-devel] [PATCH v2 7/7] blockdev: unify block-dirty-bitmap-clear command and transaction action List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, qemu-block@nongnu.org Cc: mreitz@redhat.com, kwolf@redhat.com, den@openvz.org, vsementsov@virtuozzo.com, pbonzini@redhat.com, eblake@redhat.com, armbru@redhat.com, jsnow@redhat.com, famz@redhat.com - use error messages from qmp command, as they are more descriptive - we need not check bs, as block_dirty_bitmap_lookup never returns bs = NULL on success (and if user set bs to be not NULL pointer), so, let's just assert it. Signed-off-by: Vladimir Sementsov-Ogievskiy --- blockdev.c | 53 +++++++++++++++++++++-------------------------------- 1 file changed, 21 insertions(+), 32 deletions(-) diff --git a/blockdev.c b/blockdev.c index 54e1ba8f44..3f0979298e 100644 --- a/blockdev.c +++ b/blockdev.c @@ -2114,18 +2114,26 @@ static void block_dirty_bitmap_clear_prepare(BlkActionState *common, if (!state->bitmap) { return; } + assert(state->bs != NULL); if (bdrv_dirty_bitmap_frozen(state->bitmap)) { - error_setg(errp, "Cannot modify a frozen bitmap"); + error_setg(errp, + "Bitmap '%s' is currently frozen and cannot be modified", + action->name); return; } else if (bdrv_dirty_bitmap_qmp_locked(state->bitmap)) { - error_setg(errp, "Cannot modify a locked bitmap"); + error_setg(errp, + "Bitmap '%s' is currently locked and cannot be modified", + action->name); return; } else if (!bdrv_dirty_bitmap_enabled(state->bitmap)) { - error_setg(errp, "Cannot clear a disabled bitmap"); + error_setg(errp, + "Bitmap '%s' is currently disabled and cannot be cleared", + action->name); return; } else if (bdrv_dirty_bitmap_readonly(state->bitmap)) { - error_setg(errp, "Cannot clear a readonly bitmap"); + error_setg(errp, "Bitmap '%s' is readonly and cannot be cleared", + action->name); return; } } @@ -2878,35 +2886,16 @@ void qmp_block_dirty_bitmap_remove(const char *node, const char *name, void qmp_block_dirty_bitmap_clear(const char *node, const char *name, Error **errp) { - BdrvDirtyBitmap *bitmap; - BlockDriverState *bs; - - bitmap = block_dirty_bitmap_lookup(node, name, &bs, errp); - if (!bitmap || !bs) { - return; - } - - if (bdrv_dirty_bitmap_frozen(bitmap)) { - error_setg(errp, - "Bitmap '%s' is currently frozen and cannot be modified", - name); - return; - } else if (bdrv_dirty_bitmap_qmp_locked(bitmap)) { - error_setg(errp, - "Bitmap '%s' is currently locked and cannot be modified", - name); - return; - } else if (!bdrv_dirty_bitmap_enabled(bitmap)) { - error_setg(errp, - "Bitmap '%s' is currently disabled and cannot be cleared", - name); - return; - } else if (bdrv_dirty_bitmap_readonly(bitmap)) { - error_setg(errp, "Bitmap '%s' is readonly and cannot be cleared", name); - return; - } + BlockDirtyBitmap data = { + .node = (char *)node, + .name = (char *)name + }; + TransactionAction action = { + .type = TRANSACTION_ACTION_KIND_BLOCK_DIRTY_BITMAP_CLEAR, + .u.block_dirty_bitmap_clear.data = &data, + }; - bdrv_clear_dirty_bitmap(bitmap); + blockdev_do_action(&action, errp); } BlockDirtyBitmapSha256 *qmp_x_debug_block_dirty_bitmap_sha256(const char *node, -- 2.11.1