From 8243ccb7433e59a3faa3cca27fb6c40d6da2b37c Mon Sep 17 00:00:00 2001 From: Max Reitz Date: Tue, 13 Jun 2017 22:20:52 +0200 Subject: block: Add PreallocMode to BD.bdrv_truncate() Add a PreallocMode parameter to the bdrv_truncate() function implemented by each block driver. Currently, we always pass PREALLOC_MODE_OFF and no driver accepts anything else. Signed-off-by: Max Reitz Reviewed-by: Stefan Hajnoczi Message-id: 20170613202107.10125-2-mreitz@redhat.com Signed-off-by: Max Reitz --- block/raw-format.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'block/raw-format.c') diff --git a/block/raw-format.c b/block/raw-format.c index a1622c6219..721c9a025b 100644 --- a/block/raw-format.c +++ b/block/raw-format.c @@ -352,10 +352,17 @@ static void raw_refresh_limits(BlockDriverState *bs, Error **errp) } } -static int raw_truncate(BlockDriverState *bs, int64_t offset, Error **errp) +static int raw_truncate(BlockDriverState *bs, int64_t offset, + PreallocMode prealloc, Error **errp) { BDRVRawState *s = bs->opaque; + if (prealloc != PREALLOC_MODE_OFF) { + error_setg(errp, "Unsupported preallocation mode '%s'", + PreallocMode_lookup[prealloc]); + return -ENOTSUP; + } + if (s->has_size) { error_setg(errp, "Cannot resize fixed-size raw disks"); return -ENOTSUP; -- cgit v1.2.3