[Qemu-devel] [PATCH 39/47] block: make round_to_clusters public

[Paolo Bonzini]

This function is needed by block/mirror.c in the following patch.

Signed-off-by: Paolo Bonzini <address@hidden>
---
 block.c |   16 ++++++++--------
 block.h |    4 ++++
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/block.c b/block.c
index 54d0cec..c56a500 100644
--- a/block.c
+++ b/block.c
@@ -1450,10 +1450,10 @@ static void tracked_request_begin(BdrvTrackedRequest 
*req,
 /**
  * Round a region to cluster boundaries
  */
-static void round_to_clusters(BlockDriverState *bs,
-                              int64_t sector_num, int nb_sectors,
-                              int64_t *cluster_sector_num,
-                              int *cluster_nb_sectors)
+void bdrv_round_to_clusters(BlockDriverState *bs,
+                            int64_t sector_num, int nb_sectors,
+                            int64_t *cluster_sector_num,
+                            int *cluster_nb_sectors)
 {
     BlockDriverInfo bdi;
 
@@ -1495,8 +1495,8 @@ static void coroutine_fn 
wait_for_overlapping_requests(BlockDriverState *bs,
      * CoR read and write operations are atomic and guest writes cannot
      * interleave between them.
      */
-    round_to_clusters(bs, sector_num, nb_sectors,
-                      &cluster_sector_num, &cluster_nb_sectors);
+    bdrv_round_to_clusters(bs, sector_num, nb_sectors,
+                           &cluster_sector_num, &cluster_nb_sectors);
 
     do {
         retry = false;
@@ -1819,8 +1819,8 @@ static int coroutine_fn 
bdrv_co_do_copy_on_readv(BlockDriverState *bs,
     /* Cover entire cluster so no additional backing file I/O is required when
      * allocating cluster in the image file.
      */
-    round_to_clusters(bs, sector_num, nb_sectors,
-                      &cluster_sector_num, &cluster_nb_sectors);
+    bdrv_round_to_clusters(bs, sector_num, nb_sectors,
+                           &cluster_sector_num, &cluster_nb_sectors);
 
     trace_bdrv_co_do_copy_on_readv(bs, sector_num, nb_sectors,
                                    cluster_sector_num, cluster_nb_sectors);
diff --git a/block.h b/block.h
index 8212a0f..d0312a0 100644
--- a/block.h
+++ b/block.h
@@ -283,6 +283,10 @@ int bdrv_get_flags(BlockDriverState *bs);
 int bdrv_write_compressed(BlockDriverState *bs, int64_t sector_num,
                           const uint8_t *buf, int nb_sectors);
 int bdrv_get_info(BlockDriverState *bs, BlockDriverInfo *bdi);
+void bdrv_round_to_clusters(BlockDriverState *bs,
+                            int64_t sector_num, int nb_sectors,
+                            int64_t *cluster_sector_num,
+                            int *cluster_nb_sectors);
 
 const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
 void bdrv_get_backing_filename(BlockDriverState *bs,
-- 
1.7.10.4