From ad6aef43d36fe65701ff84193576d7f3dcb82dc5 Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Tue, 4 Feb 2014 11:54:13 +0100 Subject: [PATCH] raw: Fix BlockLimits passthrough raw copies over the BlockLimits of bs->file during bdrv_open(). However, since commit d34682cd it is immediately overwritten during bdrv_refresh_limits(). This caused all fields except for opt_transfer_length and opt_mem_alignment (which happen to be correctly inherited in generic code) to be zeroed. Move the BlockLimit assignment to a .bdrv_refresh_limits() callback to make it work again for all fields. Reported-by: Laszlo Ersek Signed-off-by: Kevin Wolf Reviewed-by: Laszlo Ersek --- block/raw_bsd.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/block/raw_bsd.c b/block/raw_bsd.c index 978ae7a102..af8706dc97 100644 --- a/block/raw_bsd.c +++ b/block/raw_bsd.c @@ -90,6 +90,12 @@ static int raw_get_info(BlockDriverState *bs, BlockDriverInfo *bdi) return bdrv_get_info(bs->file, bdi); } +static int raw_refresh_limits(BlockDriverState *bs) +{ + bs->bl = bs->file->bl; + return 0; +} + static int raw_truncate(BlockDriverState *bs, int64_t offset) { return bdrv_truncate(bs->file, offset); @@ -150,7 +156,6 @@ static int raw_open(BlockDriverState *bs, QDict *options, int flags, Error **errp) { bs->sg = bs->file->sg; - bs->bl = bs->file->bl; return 0; } @@ -182,6 +187,7 @@ static BlockDriver bdrv_raw = { .bdrv_getlength = &raw_getlength, .has_variable_length = true, .bdrv_get_info = &raw_get_info, + .bdrv_refresh_limits = &raw_refresh_limits, .bdrv_is_inserted = &raw_is_inserted, .bdrv_media_changed = &raw_media_changed, .bdrv_eject = &raw_eject, -- GitLab