diff options
| 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/nfs.c | |
| parent | 32a1681adc44f52e7c8a19408cd3be8452a0897b (diff) | |
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/nfs.c')
| -rw-r--r-- | block/nfs.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/block/nfs.c b/block/nfs.c index c3c5de0113..c396ee1dbd 100644 --- a/block/nfs.c +++ b/block/nfs.c @@ -759,11 +759,18 @@ static int64_t nfs_get_allocated_file_size(BlockDriverState *bs) return (task.ret < 0 ? task.ret : st.st_blocks * 512); } -static int nfs_file_truncate(BlockDriverState *bs, int64_t offset, Error **errp) +static int nfs_file_truncate(BlockDriverState *bs, int64_t offset, + PreallocMode prealloc, Error **errp) { NFSClient *client = bs->opaque; int ret; + if (prealloc != PREALLOC_MODE_OFF) { + error_setg(errp, "Unsupported preallocation mode '%s'", + PreallocMode_lookup[prealloc]); + return -ENOTSUP; + } + ret = nfs_ftruncate(client->context, client->fh, offset); if (ret < 0) { error_setg_errno(errp, -ret, "Failed to truncate file"); |