block: Add flags to BlockDriver.bdrv_co_truncate()

This adds a new BdrvRequestFlags parameter to the .bdrv_co_truncate()
driver callbacks, and a supported_truncate_flags field in
BlockDriverState that allows drivers to advertise support for request
flags in the context of truncate.

For now, we always pass 0 and no drivers declare support for any flag.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200424125448.63318-2-kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2020-04-24 14:54:39 +02:00
parent 3fb6108707
commit 92b92799dc
15 changed files with 33 additions and 13 deletions

View file

@ -1298,7 +1298,7 @@ static int64_t ssh_getlength(BlockDriverState *bs)
static int coroutine_fn ssh_co_truncate(BlockDriverState *bs, int64_t offset,
bool exact, PreallocMode prealloc,
Error **errp)
BdrvRequestFlags flags, Error **errp)
{
BDRVSSHState *s = bs->opaque;