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[Qemu-devel] [PATCH] qcow2: align cluster_data to block to improve perfo
From: |
Frediano Ziglio |
Subject: |
[Qemu-devel] [PATCH] qcow2: align cluster_data to block to improve performance using O_DIRECT |
Date: |
Sat, 10 Sep 2011 10:59:16 +0200 |
Signed-off-by: Frediano Ziglio <address@hidden>
---
block/qcow2.c | 14 +++++++-------
1 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index 8aed310..510ff68 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -237,7 +237,7 @@ static int qcow2_open(BlockDriverState *bs, int flags)
s->cluster_cache = g_malloc(s->cluster_size);
/* one more sector for decompressed data alignment */
- s->cluster_data = g_malloc(QCOW_MAX_CRYPT_CLUSTERS * s->cluster_size
+ s->cluster_data = qemu_blockalign(bs, QCOW_MAX_CRYPT_CLUSTERS *
s->cluster_size
+ 512);
s->cluster_cache_offset = -1;
@@ -296,7 +296,7 @@ static int qcow2_open(BlockDriverState *bs, int flags)
qcow2_cache_destroy(bs, s->l2_table_cache);
}
g_free(s->cluster_cache);
- g_free(s->cluster_data);
+ qemu_vfree(s->cluster_data);
return ret;
}
@@ -456,7 +456,7 @@ static int qcow2_co_readv(BlockDriverState *bs, int64_t
sector_num,
*/
if (!cluster_data) {
cluster_data =
- g_malloc0(QCOW_MAX_CRYPT_CLUSTERS * s->cluster_size);
+ qemu_blockalign(bs, QCOW_MAX_CRYPT_CLUSTERS *
s->cluster_size);
}
assert(cur_nr_sectors <=
@@ -496,7 +496,7 @@ fail:
qemu_co_mutex_unlock(&s->lock);
qemu_iovec_destroy(&hd_qiov);
- g_free(cluster_data);
+ qemu_vfree(cluster_data);
return ret;
}
@@ -566,7 +566,7 @@ static int qcow2_co_writev(BlockDriverState *bs,
if (s->crypt_method) {
if (!cluster_data) {
- cluster_data = g_malloc0(QCOW_MAX_CRYPT_CLUSTERS *
+ cluster_data = qemu_blockalign(bs, QCOW_MAX_CRYPT_CLUSTERS *
s->cluster_size);
}
@@ -611,7 +611,7 @@ fail:
qemu_co_mutex_unlock(&s->lock);
qemu_iovec_destroy(&hd_qiov);
- g_free(cluster_data);
+ qemu_vfree(cluster_data);
return ret;
}
@@ -628,7 +628,7 @@ static void qcow2_close(BlockDriverState *bs)
qcow2_cache_destroy(bs, s->refcount_block_cache);
g_free(s->cluster_cache);
- g_free(s->cluster_data);
+ qemu_vfree(s->cluster_data);
qcow2_refcount_close(bs);
}
--
1.7.1
- [Qemu-devel] [PATCH] qcow2: align cluster_data to block to improve performance using O_DIRECT,
Frediano Ziglio <=