qcow2: Take locks for accessing bs->file

[mirror_qemu.git] / block / filter-compress.c

diff --git a/block/filter-compress.c b/block/filter-compress.c
index ac285f4b665776f195f6c7213a53f88bcccfce55..e3fc82f3221c7e21dff6b9344e9fc8d8e26cda36 100644 (file)
--- a/block/filter-compress.c
+++ b/block/filter-compress.c
@@ -97,7 +97,8 @@ compress_co_pdiscard(BlockDriverState *bs, int64_t offset, int64_t bytes)
 }
 
 
-static void compress_refresh_limits(BlockDriverState *bs, Error **errp)
+static void GRAPH_RDLOCK
+compress_refresh_limits(BlockDriverState *bs, Error **errp)
 {
     BlockDriverInfo bdi;
     int ret;
@@ -146,7 +147,6 @@ static BlockDriver bdrv_compress = {
     .bdrv_co_eject                      = compress_co_eject,
     .bdrv_co_lock_medium                = compress_co_lock_medium,
 
-    .has_variable_length                = true,
     .is_filter                          = true,
 };