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authorKevin Wolf <kwolf@redhat.com>2014-02-04 11:54:13 +0100
committerKevin Wolf <kwolf@redhat.com>2014-02-09 09:12:39 +0100
commitad6aef43d36fe65701ff84193576d7f3dcb82dc5 (patch)
treeec1d28fb891e7963dcb0aa9659abc1d995124cb2 /block
parent693a50ade339e3ef9b042fd73a3b81405101ba3d (diff)
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 <lersek@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'block')
-rw-r--r--block/raw_bsd.c8
1 files changed, 7 insertions, 1 deletions
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,