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[PULL 10/15] block-backend: convert blk_co_copy_range to int64_t bytes
From: |
Eric Blake |
Subject: |
[PULL 10/15] block-backend: convert blk_co_copy_range to int64_t bytes |
Date: |
Fri, 15 Oct 2021 16:10:05 -0500 |
From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Function is updated so that parameter type becomes wider, so all
callers should be OK with it.
Look at blk_co_copy_range() itself: bytes is passed only to
blk_check_byte_request() and bdrv_co_copy_range(), which already have
int64_t bytes parameter, so we are OK.
Note that requests exceeding INT_MAX are still restricted by
blk_check_byte_request().
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006131718.214235-10-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: grammar tweaks]
Signed-off-by: Eric Blake <eblake@redhat.com>
---
include/sysemu/block-backend.h | 2 +-
block/block-backend.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/sysemu/block-backend.h b/include/sysemu/block-backend.h
index 3294d1b07a33..9ccf9f1a8025 100644
--- a/include/sysemu/block-backend.h
+++ b/include/sysemu/block-backend.h
@@ -270,7 +270,7 @@ void blk_unregister_buf(BlockBackend *blk, void *host);
int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
BlockBackend *blk_out, int64_t off_out,
- int bytes, BdrvRequestFlags read_flags,
+ int64_t bytes, BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags);
const BdrvChild *blk_root(BlockBackend *blk);
diff --git a/block/block-backend.c b/block/block-backend.c
index ee20ae5f0f28..0746be89842b 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2418,7 +2418,7 @@ void blk_unregister_buf(BlockBackend *blk, void *host)
int coroutine_fn blk_co_copy_range(BlockBackend *blk_in, int64_t off_in,
BlockBackend *blk_out, int64_t off_out,
- int bytes, BdrvRequestFlags read_flags,
+ int64_t bytes, BdrvRequestFlags read_flags,
BdrvRequestFlags write_flags)
{
int r;
--
2.31.1
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