From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:57022) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WM3gq-0007aW-7A for qemu-devel@nongnu.org; Fri, 07 Mar 2014 17:56:34 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WM3gk-0001aA-7M for qemu-devel@nongnu.org; Fri, 07 Mar 2014 17:56:28 -0500 Received: from mx1.redhat.com ([209.132.183.28]:46310) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WM3gj-0001a5-Vx for qemu-devel@nongnu.org; Fri, 07 Mar 2014 17:56:22 -0500 From: Max Reitz Date: Fri, 7 Mar 2014 23:55:51 +0100 Message-Id: <1394232956-27852-8-git-send-email-mreitz@redhat.com> In-Reply-To: <1394232956-27852-1-git-send-email-mreitz@redhat.com> References: <1394232956-27852-1-git-send-email-mreitz@redhat.com> Subject: [Qemu-devel] [PATCH v2 07/12] block/json: Add bdrv_co_get_block_status() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Kevin Wolf , =?UTF-8?q?Beno=C3=AEt=20Canet?= , Stefan Hajnoczi , Max Reitz Implement this function in the same way as raw_bsd does: Acknowledge that this is a passthrough driver (always return BDRV_BLOCK_OFFSET_VALID and BDRV_BLOCK_DATA and derive the offset directly from the sector index) and add BDRV_BLOCK_RAW to the returned value. Signed-off-by: Max Reitz --- block/json.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/block/json.c b/block/json.c index e4cdb68..966a5f5 100644 --- a/block/json.c +++ b/block/json.c @@ -110,6 +110,15 @@ static coroutine_fn int json_co_write_zeroes(BlockDriverState *bs, return bdrv_co_write_zeroes(bs->file, sector_num, nb_sectors, flags); } +static coroutine_fn int64_t json_co_get_block_status(BlockDriverState *bs, + int64_t sector_num, + int nb_sectors, int *pnum) +{ + *pnum = nb_sectors; + return BDRV_BLOCK_RAW | BDRV_BLOCK_OFFSET_VALID | BDRV_BLOCK_DATA | + (sector_num << BDRV_SECTOR_BITS); +} + static void json_invalidate_cache(BlockDriverState *bs) { return bdrv_invalidate_cache(bs->file); @@ -156,6 +165,7 @@ static BlockDriver bdrv_json = { .bdrv_aio_discard = json_aio_discard, .bdrv_co_write_zeroes = json_co_write_zeroes, + .bdrv_co_get_block_status = json_co_get_block_status, .bdrv_invalidate_cache = json_invalidate_cache, -- 1.9.0