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| author | Stefano Garzarella <sgarzare@redhat.com> | 2021-10-26 18:23:45 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2021-11-02 13:03:35 +0100 |
| commit | 512da211010700cdbfaab45c8980ca88958a4ab8 (patch) | |
| tree | 8054868338e2b4c4f12e58e010e60a059ba91f1c /include/block | |
| parent | 684960d46267d6e6443b39ee98b3a95632ba8dc6 (diff) | |
| download | qemu-512da211010700cdbfaab45c8980ca88958a4ab8.zip qemu-512da211010700cdbfaab45c8980ca88958a4ab8.tar.gz qemu-512da211010700cdbfaab45c8980ca88958a4ab8.tar.bz2 | |
linux-aio: add `dev_max_batch` parameter to laio_co_submit()
This new parameter can be used by block devices to limit the
Linux AIO batch size more than the limit set by the AIO context.
file-posix backend supports this, passing its `aio-max-batch` option
previously added.
Add an helper function to calculate the maximum batch size.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20211026162346.253081-3-sgarzare@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/raw-aio.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/block/raw-aio.h b/include/block/raw-aio.h index 251b10d..ebd042f 100644 --- a/include/block/raw-aio.h +++ b/include/block/raw-aio.h @@ -51,7 +51,8 @@ typedef struct LinuxAioState LinuxAioState; LinuxAioState *laio_init(Error **errp); void laio_cleanup(LinuxAioState *s); int coroutine_fn laio_co_submit(BlockDriverState *bs, LinuxAioState *s, int fd, - uint64_t offset, QEMUIOVector *qiov, int type); + uint64_t offset, QEMUIOVector *qiov, int type, + uint64_t dev_max_batch); void laio_detach_aio_context(LinuxAioState *s, AioContext *old_context); void laio_attach_aio_context(LinuxAioState *s, AioContext *new_context); void laio_io_plug(BlockDriverState *bs, LinuxAioState *s); |