[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [RFC V5 53/62] block: Add bdrv_has_dedup.
From: |
Benoît Canet |
Subject: |
[Qemu-devel] [RFC V5 53/62] block: Add bdrv_has_dedup. |
Date: |
Wed, 16 Jan 2013 16:48:32 +0100 |
---
block.c | 15 +++++++++++++++
include/block/block.h | 1 +
2 files changed, 16 insertions(+)
diff --git a/block.c b/block.c
index a245653..aee33e0 100644
--- a/block.c
+++ b/block.c
@@ -4327,6 +4327,21 @@ void bdrv_lock_medium(BlockDriverState *bs, bool locked)
}
}
+/* Return true if the device has deduplication */
+bool bdrv_has_dedup(BlockDriverState *bs)
+{
+ BlockDriverInfo bdi;
+ int ret = 0;
+
+ ret = bdrv_get_info((BlockDriverState *) bs, &bdi);
+
+ if (ret < 0) {
+ return false;
+ }
+
+ return bdi.has_dedup;
+}
+
/* needed for generic scsi interface */
int bdrv_ioctl(BlockDriverState *bs, unsigned long int req, void *buf)
diff --git a/include/block/block.h b/include/block/block.h
index 2043560..e6f86ac 100644
--- a/include/block/block.h
+++ b/include/block/block.h
@@ -306,6 +306,7 @@ void bdrv_set_enable_write_cache(BlockDriverState *bs, bool
wce);
int bdrv_is_inserted(BlockDriverState *bs);
int bdrv_media_changed(BlockDriverState *bs);
void bdrv_lock_medium(BlockDriverState *bs, bool locked);
+bool bdrv_has_dedup(BlockDriverState *bs);
void bdrv_eject(BlockDriverState *bs, bool eject_flag);
const char *bdrv_get_format_name(BlockDriverState *bs);
BlockDriverState *bdrv_find(const char *name);
--
1.7.10.4
- [Qemu-devel] [RFC V5 33/62] qemu-iotests: Filter dedup=on/off so existing tests don't break., (continued)
- [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, 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 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 <=
- [Qemu-devel] [RFC V5 52/62] qcow2: Add code to deduplicate cluster flagged with QCOW_OFLAG_TO_DEDUP., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 54/62] block: Add bdrv_is_dedup_running., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 55/62] block: Add bdrv_resume_dedup., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 61/62] qmp: Add block-pause-dedup., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 62/62] qmp: Add block_resume_dedup., Benoît Canet, 2013/01/16
- Re: [Qemu-devel] [RFC V5 00/62] QCOW2 deduplication, Eric Blake, 2013/01/16
- [Qemu-devel] [RFC V5 41/62] qcow2: Collect undeduplicated cluster metric., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 25/62] qcow2: Add verification of dedup table., Benoît Canet, 2013/01/16
- [Qemu-devel] [RFC V5 39/62] qcow2: Collect unaligned writes missing data reads metric., Benoît Canet, 2013/01/16