From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52104) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZljI1-0007VK-2c for qemu-devel@nongnu.org; Mon, 12 Oct 2015 16:01:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZljHx-0000dK-41 for qemu-devel@nongnu.org; Mon, 12 Oct 2015 16:01:44 -0400 From: Max Reitz Date: Mon, 12 Oct 2015 22:00:16 +0200 Message-Id: <1444680042-13207-14-git-send-email-mreitz@redhat.com> In-Reply-To: <1444680042-13207-1-git-send-email-mreitz@redhat.com> References: <1444680042-13207-1-git-send-email-mreitz@redhat.com> Subject: [Qemu-devel] [PATCH v6 13/39] block: Move guest_block_size into BlockBackend List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-block@nongnu.org Cc: Kevin Wolf , Alberto Garcia , Markus Armbruster , qemu-devel@nongnu.org, Max Reitz , John Snow , Stefan Hajnoczi guest_block_size is a guest device property so it should be moved into the interface between block layer and guest devices, which is the BlockBackend. Signed-off-by: Max Reitz Reviewed-by: Eric Blake Reviewed-by: Alberto Garcia Reviewed-by: Kevin Wolf --- block.c | 7 ------- block/block-backend.c | 7 +++++-- include/block/block.h | 1 - include/block/block_int.h | 3 --- 4 files changed, 5 insertions(+), 13 deletions(-) diff --git a/block.c b/block.c index ccdef82..baad2b4 100644 --- a/block.c +++ b/block.c @@ -852,7 +852,6 @@ static int bdrv_open_common(BlockDriverState *bs, BdrvChild *file, goto fail_opts; } - bs->guest_block_size = 512; bs->request_alignment = 512; bs->zero_beyond_eof = true; open_flags = bdrv_open_flags(bs, flags); @@ -1992,7 +1991,6 @@ static void bdrv_move_feature_fields(BlockDriverState *bs_dest, /* move some fields that need to stay attached to the device */ /* dev info */ - bs_dest->guest_block_size = bs_src->guest_block_size; bs_dest->copy_on_read = bs_src->copy_on_read; bs_dest->enable_write_cache = bs_src->enable_write_cache; @@ -3197,11 +3195,6 @@ void bdrv_lock_medium(BlockDriverState *bs, bool locked) } } -void bdrv_set_guest_block_size(BlockDriverState *bs, int align) -{ - bs->guest_block_size = align; -} - BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs, const char *name) { BdrvDirtyBitmap *bm; diff --git a/block/block-backend.c b/block/block-backend.c index c7e0f7b..7bc2eb1 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -31,6 +31,9 @@ struct BlockBackend { /* TODO change to DeviceState when all users are qdevified */ const BlockDevOps *dev_ops; void *dev_opaque; + + /* the block size for which the guest device expects atomicity */ + int guest_block_size; }; typedef struct BlockBackendAIOCB { @@ -351,7 +354,7 @@ void blk_detach_dev(BlockBackend *blk, void *dev) blk->dev = NULL; blk->dev_ops = NULL; blk->dev_opaque = NULL; - bdrv_set_guest_block_size(blk->bs, 512); + blk->guest_block_size = 512; blk_unref(blk); } @@ -806,7 +809,7 @@ int blk_get_max_transfer_length(BlockBackend *blk) void blk_set_guest_block_size(BlockBackend *blk, int align) { - bdrv_set_guest_block_size(blk->bs, align); + blk->guest_block_size = align; } void *blk_blockalign(BlockBackend *blk, size_t size) diff --git a/include/block/block.h b/include/block/block.h index cb3e312..f923a01 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -466,7 +466,6 @@ void bdrv_img_create(const char *filename, const char *fmt, size_t bdrv_min_mem_align(BlockDriverState *bs); /* Returns optimal alignment in bytes for bounce buffer */ size_t bdrv_opt_mem_align(BlockDriverState *bs); -void bdrv_set_guest_block_size(BlockDriverState *bs, int align); void *qemu_blockalign(BlockDriverState *bs, size_t size); void *qemu_blockalign0(BlockDriverState *bs, size_t size); void *qemu_try_blockalign(BlockDriverState *bs, size_t size); diff --git a/include/block/block_int.h b/include/block/block_int.h index 40d40df..e79d8c0 100644 --- a/include/block/block_int.h +++ b/include/block/block_int.h @@ -411,9 +411,6 @@ struct BlockDriverState { /* Alignment requirement for offset/length of I/O requests */ unsigned int request_alignment; - /* the block size for which the guest device expects atomicity */ - int guest_block_size; - /* do we need to tell the quest if we have a volatile write cache? */ int enable_write_cache; -- 2.6.1