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authorMax Reitz <mreitz@redhat.com>2013-10-10 11:09:24 +0200
committerKevin Wolf <kwolf@redhat.com>2013-10-11 16:50:00 +0200
commit3e3553905cfc814d59de6d1a634c3a991b2a9257 (patch)
tree6c9fb3953ea84d8ec76f408c0bb48f50cede934e
parent231bb267644ee3a9ebfd9c7f42d5d41610194b45 (diff)
qcow2: Make overlap check mask variable
Replace the QCOW2_OL_DEFAULT macro by a variable overlap_check in BDRVQcowState. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r--block/qcow2-refcount.c2
-rw-r--r--block/qcow2.c2
-rw-r--r--block/qcow2.h5
3 files changed, 5 insertions, 4 deletions
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 988644a281..1ff43d0906 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -1649,7 +1649,7 @@ int qcow2_check_metadata_overlap(BlockDriverState *bs, int ign, int64_t offset,
int64_t size)
{
BDRVQcowState *s = bs->opaque;
- int chk = QCOW2_OL_DEFAULT & ~ign;
+ int chk = s->overlap_check & ~ign;
int i, j;
if (!size) {
diff --git a/block/qcow2.c b/block/qcow2.c
index c461471ade..46acca75f0 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -631,6 +631,8 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
s->discard_passthrough[QCOW2_DISCARD_OTHER] =
qemu_opt_get_bool(opts, QCOW2_OPT_DISCARD_OTHER, false);
+ s->overlap_check = QCOW2_OL_CACHED;
+
qemu_opts_del(opts);
if (s->use_lazy_refcounts && s->qcow_version < 3) {
diff --git a/block/qcow2.h b/block/qcow2.h
index 8692011347..6c85bb9395 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -203,6 +203,8 @@ typedef struct BDRVQcowState {
bool discard_passthrough[QCOW2_DISCARD_MAX];
+ int overlap_check; /* bitmask of Qcow2MetadataOverlap values */
+
uint64_t incompatible_features;
uint64_t compatible_features;
uint64_t autoclear_features;
@@ -321,9 +323,6 @@ typedef enum QCow2MetadataOverlap {
QCOW2_OL_REFCOUNT_TABLE | QCOW2_OL_REFCOUNT_BLOCK | \
QCOW2_OL_SNAPSHOT_TABLE | QCOW2_OL_INACTIVE_L1)
-/* The default checks to perform */
-#define QCOW2_OL_DEFAULT QCOW2_OL_CACHED
-
#define L1E_OFFSET_MASK 0x00ffffffffffff00ULL
#define L2E_OFFSET_MASK 0x00ffffffffffff00ULL
#define L2E_COMPRESSED_OFFSET_SIZE_MASK 0x3fffffffffffffffULL