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[Qemu-devel] [RFC V5 36/62] qcow2: Enable the deduplication feature.
From: |
Benoît Canet |
Subject: |
[Qemu-devel] [RFC V5 36/62] qcow2: Enable the deduplication feature. |
Date: |
Wed, 16 Jan 2013 16:48:15 +0100 |
---
block/qcow2.c | 17 +++++++++++++----
1 file changed, 13 insertions(+), 4 deletions(-)
diff --git a/block/qcow2.c b/block/qcow2.c
index bd7579a..753fce0 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -542,6 +542,13 @@ static int qcow2_open(BlockDriverState *bs, int flags)
}
}
+ if (s->incompatible_features & QCOW2_INCOMPAT_DEDUP) {
+ ret = qcow2_dedup_init(bs);
+ if (ret < 0) {
+ goto fail;
+ }
+ }
+
#ifdef DEBUG_ALLOC
{
BdrvCheckResult result = {0};
@@ -1011,11 +1018,11 @@ fail:
static void qcow2_close(BlockDriverState *bs)
{
BDRVQcowState *s = bs->opaque;
+
g_free(s->l1_table);
if (s->has_dedup) {
- qcow2_cache_flush(bs, s->dedup_cluster_cache);
- qcow2_cache_destroy(bs, s->dedup_cluster_cache);
+ qcow2_dedup_close(bs);
}
qcow2_cache_flush(bs, s->l2_table_cache);
@@ -1509,8 +1516,10 @@ static int qcow2_create2(const char *filename, int64_t
total_size,
}
/* minimal init */
- s->dedup_cluster_cache = qcow2_cache_create(bs, DEDUP_CACHE_SIZE,
- s->hash_block_size);
+ ret = qcow2_dedup_init(bs);
+ if (ret < 0) {
+ goto out;
+ }
}
/* Want a backing file? There you go.*/
--
1.7.10.4
- [Qemu-devel] [RFC V5 22/62] qcow2: Add qcow2_dedup_is_running to probe if dedup is running., (continued)
- [Qemu-devel] [RFC V5 22/62] qcow2: Add qcow2_dedup_is_running to probe if dedup is running., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 20/62] qcow2: Drop hash for a given cluster when dedup makes refcount > 2^16/2., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 19/62] qcow2: Add a deduplication boolean to update_refcount., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 27/62] qcow2: Add check_dedup_l2 in order to check l2 of dedup table., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 30/62] qcow2: Add lazy refcounts to deduplication to prevent qcow2_cache_set_dependency loops, Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 29/62] qcow2: Integrate SKEIN hash algorithm in deduplication., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 33/62] qemu-iotests: Filter dedup=on/off so existing tests don't break., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 31/62] qcow2: Use large L2 table for deduplication., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 32/62] qcow: Set large dedup hash block size., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 34/62] qcow2: Add qcow2_dedup_init and qcow2_dedup_close., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 36/62] qcow2: Enable the deduplication feature.,
Benoît Canet <=
- [Qemu-devel] [RFC V5 38/62] qcow2: Initialize deduplication metrics., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 35/62] qcow2: Add qcow2_co_dedup_resume to restart deduplication., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 45/62] qcow2: Count deduplication refcount overflow metric., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 42/62] qcow2: Count QCowHashNode creation metrics., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 46/62] qapi: Add support for deduplication infos in qapi-schema.json., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 47/62] block: Add deduplication metrics to BlockDriverInfo., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 48/62] qcow2: Add qcow2_dedup_update_metrics to compute dedup RAM usage., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 49/62] qcow2: returns deduplication metrics and status via bdrv_get_info(), Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 50/62] qapi: Return virtual block device deduplication metrics in QMP, Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 53/62] block: Add bdrv_has_dedup., Benoît Canet, 2013/01/16