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[Qemu-devel] [PATCH 14/28] qcow2: drop unnecessary flush in qcow2_update
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH 14/28] qcow2: drop unnecessary flush in qcow2_update_snapshot_refcount() |
Date: |
Fri, 15 Mar 2013 16:14:11 +0100 |
We already flush when the function completes. There is no need to flush
after every compressed cluster.
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block/qcow2-refcount.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 92519ea..9bfb390 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -790,10 +790,6 @@ int qcow2_update_snapshot_refcount(BlockDriverState *bs,
if (ret < 0) {
goto fail;
}
-
- /* TODO Flushing once for the whole function should
- * be enough */
- bdrv_flush(bs->file);
}
/* compressed clusters are never modified */
refcount = 2;
--
1.8.1.4
- [Qemu-devel] [PATCH 04/28] block: Add options QDict to bdrv_open_common(), (continued)
- [Qemu-devel] [PATCH 04/28] block: Add options QDict to bdrv_open_common(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 03/28] Add qdict_clone_shallow(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 05/28] qemu-option: Add qemu_opts_absorb_qdict(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 08/28] qcow2: Allow lazy refcounts to be enabled on the command line, Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 02/28] block: Add options QDict to bdrv_open() prototype, Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 01/28] block: Add options QDict to .bdrv_open(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 10/28] qcow2: flush refcount cache correctly in qcow2_write_snapshots(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 11/28] qcow2: set L2 cache dependency in qcow2_alloc_bytes(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 09/28] qcow2: flush refcount cache correctly in alloc_refcount_block(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 07/28] block: Support driver specific options in drive_init(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 14/28] qcow2: drop unnecessary flush in qcow2_update_snapshot_refcount(),
Stefan Hajnoczi <=
- [Qemu-devel] [PATCH 06/28] blockdev: Keep a copy of DriveInfo.serial, Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 12/28] qcow2: flush in qcow2_update_snapshot_refcount(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 13/28] qcow2: drop flush in update_cluster_refcount(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 15/28] qcow2: make is_allocated return true for zero clusters, Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 16/28] sheepdog: use non-blocking fd in coroutine context, Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 17/28] sheepdog: set io_flush handler in do_co_req, Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 19/28] threadpool: move globals into struct ThreadPool, Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 20/28] threadpool: add thread_pool_new() and thread_pool_free(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 22/28] block: add bdrv_get_aio_context(), Stefan Hajnoczi, 2013/03/15
- [Qemu-devel] [PATCH 18/28] main-loop: add qemu_get_aio_context(), Stefan Hajnoczi, 2013/03/15