[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH v6 6/9] block: support BDRV_REQ_ALLOCATE in passthro
From: |
Anton Nefedov |
Subject: |
[Qemu-devel] [PATCH v6 6/9] block: support BDRV_REQ_ALLOCATE in passthrough drivers |
Date: |
Tue, 16 Jan 2018 16:04:27 +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 d18ec65..eb41deb 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 v6 0/9] qcow2: cluster space preallocation, Anton Nefedov, 2018/01/16
- [Qemu-devel] [PATCH v6 3/9] block: introduce BDRV_REQ_ALLOCATE flag, Anton Nefedov, 2018/01/16
- [Qemu-devel] [PATCH v6 1/9] mirror: inherit supported write/zero flags, Anton Nefedov, 2018/01/16
- [Qemu-devel] [PATCH v6 4/9] block: treat BDRV_REQ_ALLOCATE as serialising, Anton Nefedov, 2018/01/16
- [Qemu-devel] [PATCH v6 2/9] blkverify: set supported write/zero flags, Anton Nefedov, 2018/01/16
- [Qemu-devel] [PATCH v6 9/9] iotest 134: test cluster-misaligned encrypted write, Anton Nefedov, 2018/01/16
- [Qemu-devel] [PATCH v6 7/9] qcow2: move is_zero() up, Anton Nefedov, 2018/01/16
- [Qemu-devel] [PATCH v6 6/9] block: support BDRV_REQ_ALLOCATE in passthrough drivers,
Anton Nefedov <=
- [Qemu-devel] [PATCH v6 5/9] file-posix: support BDRV_REQ_ALLOCATE, Anton Nefedov, 2018/01/16
- [Qemu-devel] [PATCH v6 8/9] qcow2: skip writing zero buffers to empty COW areas, Anton Nefedov, 2018/01/16