[Qemu-devel] [PATCH v4 03/20] qmp: Ensure consistent granularity type

[John Snow <jsnow@redhat.com>]

We treat this field with a variety of different types everywhere
in the code. Now it's just uint32_t.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
---
 block.c                   | 11 ++++++-----
 block/mirror.c            |  4 ++--
 include/block/block.h     |  2 +-
 include/block/block_int.h |  2 +-
 qapi/block-core.json      |  2 +-
 5 files changed, 11 insertions(+), 10 deletions(-)

diff --git a/block.c b/block.c
index bdf98a9..a05971a 100644
--- a/block.c
+++ b/block.c
@@ -5423,12 +5423,13 @@ void bdrv_dirty_bitmap_make_anon(BlockDriverState *bs, BdrvDirtyBitmap *bitmap)
 }
 
 BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
-                                          int granularity,
+                                          uint32_t granularity,
                                           const char *name,
                                           Error **errp)
 {
     int64_t bitmap_size;
     BdrvDirtyBitmap *bitmap;
+    uint32_t sector_granularity;
 
     assert((granularity & (granularity - 1)) == 0);
 
@@ -5436,8 +5437,8 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
         error_setg(errp, "Bitmap already exists: %s", name);
         return NULL;
     }
-    granularity >>= BDRV_SECTOR_BITS;
-    assert(granularity);
+    sector_granularity = granularity >> BDRV_SECTOR_BITS;
+    assert(sector_granularity);
     bitmap_size = bdrv_nb_sectors(bs);
     if (bitmap_size < 0) {
         error_setg_errno(errp, -bitmap_size, "could not get length of device");
@@ -5445,7 +5446,7 @@ BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
         return NULL;
     }
     bitmap = g_new0(BdrvDirtyBitmap, 1);
-    bitmap->bitmap = hbitmap_alloc(bitmap_size, ffs(granularity) - 1);
+    bitmap->bitmap = hbitmap_alloc(bitmap_size, ffs(sector_granularity) - 1);
     bitmap->name = g_strdup(name);
     QLIST_INSERT_HEAD(&bs->dirty_bitmaps, bitmap, list);
     return bitmap;
@@ -5476,7 +5477,7 @@ BlockDirtyInfoList *bdrv_query_dirty_bitmaps(BlockDriverState *bs)
         BlockDirtyInfoList *entry = g_new0(BlockDirtyInfoList, 1);
         info->count = bdrv_get_dirty_count(bs, bm);
         info->granularity =
-            ((int64_t) BDRV_SECTOR_SIZE << hbitmap_granularity(bm->bitmap));
+            ((uint32_t) BDRV_SECTOR_SIZE << hbitmap_granularity(bm->bitmap));
         info->has_name = !!bm->name;
         info->name = g_strdup(bm->name);
         entry->value = info;
diff --git a/block/mirror.c b/block/mirror.c
index f073ad7..f8aac33 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -656,7 +656,7 @@ static const BlockJobDriver commit_active_job_driver = {
 
 static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target,
                              const char *replaces,
-                             int64_t speed, int64_t granularity,
+                             int64_t speed, uint32_t granularity,
                              int64_t buf_size,
                              BlockdevOnError on_source_error,
                              BlockdevOnError on_target_error,
@@ -717,7 +717,7 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target,
 
 void mirror_start(BlockDriverState *bs, BlockDriverState *target,
                   const char *replaces,
-                  int64_t speed, int64_t granularity, int64_t buf_size,
+                  int64_t speed, uint32_t granularity, int64_t buf_size,
                   MirrorSyncMode mode, BlockdevOnError on_source_error,
                   BlockdevOnError on_target_error,
                   BlockCompletionFunc *cb,
diff --git a/include/block/block.h b/include/block/block.h
index 05e32f9..5235086 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -450,7 +450,7 @@ bool bdrv_qiov_is_aligned(BlockDriverState *bs, QEMUIOVector *qiov);
 struct HBitmapIter;
 typedef struct BdrvDirtyBitmap BdrvDirtyBitmap;
 BdrvDirtyBitmap *bdrv_create_dirty_bitmap(BlockDriverState *bs,
-                                          int granularity,
+                                          uint32_t granularity,
                                           const char *name,
                                           Error **errp);
 BdrvDirtyBitmap *bdrv_find_dirty_bitmap(BlockDriverState *bs,
diff --git a/include/block/block_int.h b/include/block/block_int.h
index dccb092..fb9e100 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -590,7 +590,7 @@ void commit_active_start(BlockDriverState *bs, BlockDriverState *base,
  */
 void mirror_start(BlockDriverState *bs, BlockDriverState *target,
                   const char *replaces,
-                  int64_t speed, int64_t granularity, int64_t buf_size,
+                  int64_t speed, uint32_t granularity, int64_t buf_size,
                   MirrorSyncMode mode, BlockdevOnError on_source_error,
                   BlockdevOnError on_target_error,
                   BlockCompletionFunc *cb,
diff --git a/qapi/block-core.json b/qapi/block-core.json
index ad3d5c3..42c9d75 100644
--- a/qapi/block-core.json
+++ b/qapi/block-core.json
@@ -339,7 +339,7 @@
 # Since: 1.3
 ##
 { 'type': 'BlockDirtyInfo',
-  'data': {'*name': 'str', 'count': 'int', 'granularity': 'int'} }
+  'data': {'*name': 'str', 'count': 'int', 'granularity': 'uint32'} }
 
 ##
 # @BlockInfo:
-- 
2.1.0