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List-Subscribe: , Cc: kwolf@redhat.com, Liu Yuan , "open list:Sheepdog" , qemu-block@nongnu.org, mreitz@redhat.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 3/24/20 1:42 PM, Eric Blake wrote: > block_int.h claims that .bdrv_has_zero_init must return 0 if > .bdrv_has_zero_init_truncate does likewise; but this is violated if > only the former callback is provided if .bdrv_co_truncate also exists. > When adding the latter callback, it was mistakenly added to only one > of the three possible sheepdog instantiations. > > Fixes: 1dcaf527 > Signed-off-by: Eric Blake > --- > block/sheepdog.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/block/sheepdog.c b/block/sheepdog.c > index cfa84338a2d6..522c16a93676 100644 > --- a/block/sheepdog.c > +++ b/block/sheepdog.c > @@ -3269,6 +3269,7 @@ static BlockDriver bdrv_sheepdog_tcp = { > .bdrv_co_create = sd_co_create, > .bdrv_co_create_opts = sd_co_create_opts, > .bdrv_has_zero_init = bdrv_has_zero_init_1, > + .bdrv_has_zero_init_truncate = bdrv_has_zero_init_1, > .bdrv_getlength = sd_getlength, > .bdrv_get_allocated_file_size = sd_get_allocated_file_size, > .bdrv_co_truncate = sd_co_truncate, > @@ -3307,6 +3308,7 @@ static BlockDriver bdrv_sheepdog_unix = { > .bdrv_co_create = sd_co_create, > .bdrv_co_create_opts = sd_co_create_opts, > .bdrv_has_zero_init = bdrv_has_zero_init_1, > + .bdrv_has_zero_init_truncate = bdrv_has_zero_init_1, > .bdrv_getlength = sd_getlength, > .bdrv_get_allocated_file_size = sd_get_allocated_file_size, > .bdrv_co_truncate = sd_co_truncate, > Reviewed-by: John Snow