diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2015-09-25 19:01:46 +0100 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2015-09-25 19:01:46 +0100 |
| commit | 54b376230c795d9f63490fa2e951cb786f7b1e12 (patch) | |
| tree | ba0fc21bca0fceb7624c075b5a0d1df25584e911 /include | |
| parent | 690b286fefa806f130dfc1931b5ba0b4dd2fb415 (diff) | |
| parent | e6fd57ea297ec3aad32b24090c5d3757a99df3fe (diff) | |
Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging
# gpg: Signature made Fri 25 Sep 2015 16:47:31 BST using RSA key ID C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg: aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg: aka "Jeffrey Cody <codyprime@gmail.com>"
* remotes/cody/tags/block-pull-request:
sheepdog: refine discard support
sheepdog: use per AIOCB dirty indexes for non overlapping requests
Backup: don't do copy-on-read in before_write_notifier
block: Introduce a new API bdrv_co_no_copy_on_readv()
sheepdog: add reopen support
block/nfs: cache allocated filesize for read-only files
block/nfs: fix calculation of allocated file size
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/block.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/block/block.h b/include/block/block.h index ef67353108..2dd66300ed 100644 --- a/include/block/block.h +++ b/include/block/block.h @@ -51,15 +51,16 @@ typedef struct BlockFragInfo { } BlockFragInfo; typedef enum { - BDRV_REQ_COPY_ON_READ = 0x1, - BDRV_REQ_ZERO_WRITE = 0x2, + BDRV_REQ_COPY_ON_READ = 0x1, + BDRV_REQ_ZERO_WRITE = 0x2, /* The BDRV_REQ_MAY_UNMAP flag is used to indicate that the block driver * is allowed to optimize a write zeroes request by unmapping (discarding) * blocks if it is guaranteed that the result will read back as * zeroes. The flag is only passed to the driver if the block device is * opened with BDRV_O_UNMAP. */ - BDRV_REQ_MAY_UNMAP = 0x4, + BDRV_REQ_MAY_UNMAP = 0x4, + BDRV_REQ_NO_COPY_ON_READ = 0x8, } BdrvRequestFlags; typedef struct BlockSizes { @@ -252,6 +253,8 @@ int coroutine_fn bdrv_co_readv(BlockDriverState *bs, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov); int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov); +int coroutine_fn bdrv_co_no_copy_on_readv(BlockDriverState *bs, + int64_t sector_num, int nb_sectors, QEMUIOVector *qiov); int coroutine_fn bdrv_co_writev(BlockDriverState *bs, int64_t sector_num, int nb_sectors, QEMUIOVector *qiov); /* |