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| author | Frediano Ziglio <freddy77@gmail.com> | 2011-09-10 10:59:16 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-09-12 15:17:22 +0200 |
| commit | dea43a65d6b09c43cc7df94f76bb7522016318f4 (patch) | |
| tree | 0e129ceec8382425b3453fec7f4bb2403942aa39 | |
| parent | 847f171e6ac0c1a9b24e695e3496b140ec265b2c (diff) | |
| download | qemu-dea43a65d6b09c43cc7df94f76bb7522016318f4.zip qemu-dea43a65d6b09c43cc7df94f76bb7522016318f4.tar.gz qemu-dea43a65d6b09c43cc7df94f76bb7522016318f4.tar.bz2 | |
qcow2: align cluster_data to block to improve performance using O_DIRECT
Signed-off-by: Frediano Ziglio <freddy77@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
| -rw-r--r-- | 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); } |