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| author | Max Reitz <mreitz@redhat.com> | 2017-06-13 22:20:52 +0200 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2017-07-11 17:45:01 +0200 |
| commit | 8243ccb7433e59a3faa3cca27fb6c40d6da2b37c (patch) | |
| tree | 18ab94c4ea476c161f7c579c30e9203abb96afbc /block/raw-format.c | |
| parent | 32a1681adc44f52e7c8a19408cd3be8452a0897b (diff) | |
| download | qemu-8243ccb7433e59a3faa3cca27fb6c40d6da2b37c.zip qemu-8243ccb7433e59a3faa3cca27fb6c40d6da2b37c.tar.gz qemu-8243ccb7433e59a3faa3cca27fb6c40d6da2b37c.tar.bz2 | |
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 <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170613202107.10125-2-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'block/raw-format.c')
| -rw-r--r-- | block/raw-format.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/block/raw-format.c b/block/raw-format.c index a1622c6..721c9a0 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; |