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[Qemu-block] [PATCH 1/2] block: make bdrv_get_cluster_size public
From: |
jemmy858585 |
Subject: |
[Qemu-block] [PATCH 1/2] block: make bdrv_get_cluster_size public |
Date: |
Thu, 6 Apr 2017 21:15:35 +0800 |
From: Lidong Chen <address@hidden>
The bdrv_get_cluster_size function is need by block migration
to optimize zero cluster.
Signed-off-by: Lidong Chen <address@hidden>
---
block/io.c | 2 +-
include/block/block.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/block/io.c b/block/io.c
index 2709a70..1c31c2b 100644
--- a/block/io.c
+++ b/block/io.c
@@ -459,7 +459,7 @@ void bdrv_round_to_clusters(BlockDriverState *bs,
}
}
-static int bdrv_get_cluster_size(BlockDriverState *bs)
+int bdrv_get_cluster_size(BlockDriverState *bs)
{
BlockDriverInfo bdi;
int ret;
diff --git a/include/block/block.h b/include/block/block.h
index 5149260..a0d78fc 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -473,6 +473,7 @@ void bdrv_round_to_clusters(BlockDriverState *bs,
int64_t offset, unsigned int bytes,
int64_t *cluster_offset,
unsigned int *cluster_bytes);
+int bdrv_get_cluster_size(BlockDriverState *bs);
const char *bdrv_get_encrypted_filename(BlockDriverState *bs);
void bdrv_get_backing_filename(BlockDriverState *bs,
--
1.8.3.1