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[Qemu-block] [PATCH 0/2] use blk_pwrite_zeroes for each zero cluster
From: |
jemmy858585 |
Subject: |
[Qemu-block] [PATCH 0/2] use blk_pwrite_zeroes for each zero cluster |
Date: |
Thu, 6 Apr 2017 21:15:34 +0800 |
From: Lidong Chen <address@hidden>
BLOCK_SIZE is (1 << 20), qcow2 cluster size is 65536 by default,
this maybe cause the qcow2 file size is bigger after migration.
This patch check each cluster, use blk_pwrite_zeroes for each
zero cluster.
Lidong Chen (2):
block: make bdrv_get_cluster_size public
migration/block: use blk_pwrite_zeroes for each zero cluster
block/io.c | 2 +-
include/block/block.h | 1 +
migration/block.c | 34 ++++++++++++++++++++++++++++++++--
3 files changed, 34 insertions(+), 3 deletions(-)
--
1.8.3.1
- [Qemu-block] [PATCH 0/2] use blk_pwrite_zeroes for each zero cluster,
jemmy858585 <=