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authorMax Reitz <mreitz@redhat.com>2017-06-13 22:20:52 +0200
committerMax Reitz <mreitz@redhat.com>2017-07-11 17:45:01 +0200
commit8243ccb7433e59a3faa3cca27fb6c40d6da2b37c (patch)
tree18ab94c4ea476c161f7c579c30e9203abb96afbc /block/gluster.c
parent32a1681adc44f52e7c8a19408cd3be8452a0897b (diff)
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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/gluster.c')
-rw-r--r--block/gluster.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/block/gluster.c b/block/gluster.c
index addceed..bfa4df1 100644
--- a/block/gluster.c
+++ b/block/gluster.c
@@ -1096,11 +1096,17 @@ static coroutine_fn int qemu_gluster_co_rw(BlockDriverState *bs,
}
static int qemu_gluster_truncate(BlockDriverState *bs, int64_t offset,
- Error **errp)
+ PreallocMode prealloc, Error **errp)
{
int ret;
BDRVGlusterState *s = bs->opaque;
+ if (prealloc != PREALLOC_MODE_OFF) {
+ error_setg(errp, "Unsupported preallocation mode '%s'",
+ PreallocMode_lookup[prealloc]);
+ return -ENOTSUP;
+ }
+
ret = glfs_ftruncate(s->fd, offset);
if (ret < 0) {
ret = -errno;