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[Qemu-devel] [PATCH v5 06/15] block: support BDRV_REQ_ALLOCATE in passth
From: |
Anton Nefedov |
Subject: |
[Qemu-devel] [PATCH v5 06/15] block: support BDRV_REQ_ALLOCATE in passthrough drivers |
Date: |
Wed, 1 Nov 2017 18:43:59 +0300 |
Support the flag if the underlying BDS supports it
Signed-off-by: Anton Nefedov <address@hidden>
Reviewed-by: Alberto Garcia <address@hidden>
---
block/blkdebug.c | 3 ++-
block/blkverify.c | 2 +-
block/mirror.c | 2 +-
block/raw-format.c | 3 ++-
4 files changed, 6 insertions(+), 4 deletions(-)
diff --git a/block/blkdebug.c b/block/blkdebug.c
index e216699..7d5773d 100644
--- a/block/blkdebug.c
+++ b/block/blkdebug.c
@@ -400,7 +400,8 @@ static int blkdebug_open(BlockDriverState *bs, QDict
*options, int flags,
bs->supported_write_flags = BDRV_REQ_FUA &
bs->file->bs->supported_write_flags;
- bs->supported_zero_flags = (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
+ bs->supported_zero_flags =
+ (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_ALLOCATE) &
bs->file->bs->supported_zero_flags;
ret = -EINVAL;
diff --git a/block/blkverify.c b/block/blkverify.c
index 9ba65d0..b249636 100644
--- a/block/blkverify.c
+++ b/block/blkverify.c
@@ -145,7 +145,7 @@ static int blkverify_open(BlockDriverState *bs, QDict
*options, int flags,
s->test_file->bs->supported_write_flags;
bs->supported_zero_flags =
- (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
+ (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_ALLOCATE) &
bs->file->bs->supported_zero_flags &
s->test_file->bs->supported_zero_flags;
diff --git a/block/mirror.c b/block/mirror.c
index 19c8987..404c3e9 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -1067,7 +1067,7 @@ static void
bdrv_mirror_top_refresh_filename(BlockDriverState *bs, QDict *opts)
bs->supported_write_flags = BDRV_REQ_FUA &
bs->backing->bs->supported_write_flags;
bs->supported_zero_flags =
- (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
+ (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_ALLOCATE) &
bs->backing->bs->supported_zero_flags;
}
diff --git a/block/raw-format.c b/block/raw-format.c
index ab552c0..b1deb93 100644
--- a/block/raw-format.c
+++ b/block/raw-format.c
@@ -416,7 +416,8 @@ static int raw_open(BlockDriverState *bs, QDict *options,
int flags,
bs->sg = bs->file->bs->sg;
bs->supported_write_flags = BDRV_REQ_FUA &
bs->file->bs->supported_write_flags;
- bs->supported_zero_flags = (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP) &
+ bs->supported_zero_flags =
+ (BDRV_REQ_FUA | BDRV_REQ_MAY_UNMAP | BDRV_REQ_ALLOCATE) &
bs->file->bs->supported_zero_flags;
if (bs->probed && !bdrv_is_read_only(bs)) {
--
2.7.4
- [Qemu-devel] [PATCH v5 00/15] qcow2: space preallocation and COW improvements, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 01/15] mirror: inherit supported write/zero flags, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 02/15] blkverify: set supported write/zero flags, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 04/15] block: treat BDRV_REQ_ALLOCATE as serialising, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 03/15] block: introduce BDRV_REQ_ALLOCATE flag, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 05/15] file-posix: support BDRV_REQ_ALLOCATE, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 06/15] block: support BDRV_REQ_ALLOCATE in passthrough drivers,
Anton Nefedov <=
- [Qemu-devel] [PATCH v5 07/15] qcow2: move is_zero() up, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 08/15] qcow2: skip writing zero buffers to empty COW areas, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 10/15] qcow2: set inactive flag, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 09/15] qcow2: preallocation at image expand, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 13/15] qcow2: do not zero out clusters if already preallocated, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 11/15] qcow2: truncate preallocated space, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 12/15] qcow2: check space leak at the end of the image, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 14/15] iotest 198: test BDRV_REQ_ALLOCATE, Anton Nefedov, 2017/11/01
- [Qemu-devel] [PATCH v5 15/15] iotest 134: test cluster-misaligned encrypted write, Anton Nefedov, 2017/11/01