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[Qemu-devel] [RFC V7 32/32] qcow2: Enable the deduplication feature.
From: |
Benoît Canet |
Subject: |
[Qemu-devel] [RFC V7 32/32] qcow2: Enable the deduplication feature. |
Date: |
Fri, 15 Mar 2013 15:49:46 +0100 |
---
block/qcow2.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/block/qcow2.c b/block/qcow2.c
index 96fc86a..135c71e 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -531,6 +531,13 @@ 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};
@@ -1006,8 +1013,13 @@ fail:
static void qcow2_close(BlockDriverState *bs)
{
BDRVQcowState *s = bs->opaque;
+
g_free(s->l1_table);
+ if (s->has_dedup) {
+ qcow2_dedup_close(bs);
+ }
+
qcow2_cache_flush(bs, s->l2_table_cache);
qcow2_cache_flush(bs, s->refcount_block_cache);
@@ -1498,6 +1510,12 @@ static int qcow2_create2(const char *filename, int64_t
total_size,
if (ret < 0) {
goto out;
}
+
+ /* minimal init */
+ ret = qcow2_dedup_init(bs);
+ if (ret < 0) {
+ goto out;
+ }
}
/* Want a backing file? There you go.*/
--
1.7.10.4
- [Qemu-devel] [RFC V7 20/32] qcow2: Drop hash for a given cluster when dedup makes refcount > 2^16/2., (continued)
- [Qemu-devel] [RFC V7 20/32] qcow2: Drop hash for a given cluster when dedup makes refcount > 2^16/2., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 24/32] qcow2: Serialize write requests when deduplication is activated., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 23/32] qcow2: Integrate deduplication in qcow2_co_writev loop., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 19/32] block: Add qcow2_dedup format and image creation code., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 25/32] qcow2: Adapt checking of QCOW_OFLAG_COPIED for dedup., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 26/32] qcow2: Add check_dedup_l2 in order to check l2 of dedup table., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 27/32] qcow2: Add verification of dedup table., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 30/32] qcow2: Add qcow2_dedup_init and qcow2_dedup_close., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 28/32] qcow2: Integrate SKEIN hash algorithm in deduplication., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 29/32] qcow: Set large dedup hash block size., Benoît Canet, 2013/03/15
- [Qemu-devel] [RFC V7 32/32] qcow2: Enable the deduplication feature.,
Benoît Canet <=
- [Qemu-devel] [RFC V7 31/32] qcow2: Add qcow2_co_dedup_resume to restart deduplication., Benoît Canet, 2013/03/15