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authorManos Pitsidianakis <el13635@mail.ntua.gr>2017-07-13 18:30:27 +0300
committerKevin Wolf <kwolf@redhat.com>2017-09-04 18:31:13 +0200
commitd8e12cd3227f0cb3b5558563f094088cfefb8f21 (patch)
tree7804bf0202c245145d378c76fdb8a55e22b46fec
parentf024aee8673676712f7622e814f27b0f7d5bffd5 (diff)
downloadfocaccia-qemu-d8e12cd3227f0cb3b5558563f094088cfefb8f21.tar.gz
focaccia-qemu-d8e12cd3227f0cb3b5558563f094088cfefb8f21.zip
block: remove bdrv_truncate callback in blkdebug
Now that bdrv_truncate is passed to bs->file by default, remove the
callback from block/blkdebug.c and set is_filter to true. is_filter also gives
access to other callbacks that are forwarded automatically to bs->file for
filters.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Manos Pitsidianakis <el13635@mail.ntua.gr>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r--block/blkdebug.c8
1 files changed, 1 insertions, 7 deletions
diff --git a/block/blkdebug.c b/block/blkdebug.c
index 8e385acf54..f10e3e5638 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -808,12 +808,6 @@ static int64_t blkdebug_getlength(BlockDriverState *bs)
     return bdrv_getlength(bs->file->bs);
 }
 
-static int blkdebug_truncate(BlockDriverState *bs, int64_t offset,
-                             PreallocMode prealloc, Error **errp)
-{
-    return bdrv_truncate(bs->file, offset, prealloc, errp);
-}
-
 static void blkdebug_refresh_filename(BlockDriverState *bs, QDict *options)
 {
     BDRVBlkdebugState *s = bs->opaque;
@@ -896,6 +890,7 @@ static BlockDriver bdrv_blkdebug = {
     .format_name            = "blkdebug",
     .protocol_name          = "blkdebug",
     .instance_size          = sizeof(BDRVBlkdebugState),
+    .is_filter              = true,
 
     .bdrv_parse_filename    = blkdebug_parse_filename,
     .bdrv_file_open         = blkdebug_open,
@@ -904,7 +899,6 @@ static BlockDriver bdrv_blkdebug = {
     .bdrv_child_perm        = bdrv_filter_default_perms,
 
     .bdrv_getlength         = blkdebug_getlength,
-    .bdrv_truncate          = blkdebug_truncate,
     .bdrv_refresh_filename  = blkdebug_refresh_filename,
     .bdrv_refresh_limits    = blkdebug_refresh_limits,