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| author | Stefan Hajnoczi | 2022-10-30 20:07:25 +0100 |
|---|---|---|
| committer | Stefan Hajnoczi | 2022-10-30 20:07:25 +0100 |
| commit | 75d30fde55485b965a1168a21d016dd07b50ed32 (patch) | |
| tree | 9d960d731c2057a9e9ee69e15bb3fb8169ca1eda /include/qemu | |
| parent | Merge tag 'qga-pull-2022-10-26' of https://github.com/kostyanf14/qemu into st... (diff) | |
| parent | virtio-blk: use BDRV_REQ_REGISTERED_BUF optimization hint (diff) | |
| download | qemu-75d30fde55485b965a1168a21d016dd07b50ed32.tar.gz qemu-75d30fde55485b965a1168a21d016dd07b50ed32.tar.xz qemu-75d30fde55485b965a1168a21d016dd07b50ed32.zip | |
Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into staging
Pull request
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# gpg: Signature made Wed 26 Oct 2022 14:58:38 EDT
# gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [ultimate]
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [ultimate]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* tag 'block-pull-request' of https://gitlab.com/stefanha/qemu:
virtio-blk: use BDRV_REQ_REGISTERED_BUF optimization hint
blkio: implement BDRV_REQ_REGISTERED_BUF optimization
stubs: add qemu_ram_block_from_host() and qemu_ram_get_fd()
exec/cpu-common: add qemu_ram_get_fd()
block: add BlockRAMRegistrar
numa: use QLIST_FOREACH_SAFE() for RAM block notifiers
block: return errors from bdrv_register_buf()
block: add BDRV_REQ_REGISTERED_BUF request flag
block: use BdrvRequestFlags type for supported flag fields
block: pass size to bdrv_unregister_buf()
numa: call ->ram_block_removed() in ram_block_notifer_remove()
blkio: add libblkio block driver
coroutine: add flag to re-queue at front of CoQueue
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'include/qemu')
| -rw-r--r-- | include/qemu/coroutine.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/include/qemu/coroutine.h b/include/qemu/coroutine.h index aae33cce17..608fe45dcf 100644 --- a/include/qemu/coroutine.h +++ b/include/qemu/coroutine.h @@ -198,14 +198,25 @@ typedef struct CoQueue { */ void qemu_co_queue_init(CoQueue *queue); +typedef enum { + /* + * Enqueue at front instead of back. Use this to re-queue a request when + * its wait condition is not satisfied after being woken up. + */ + CO_QUEUE_WAIT_FRONT = 0x1, +} CoQueueWaitFlags; + /** * Adds the current coroutine to the CoQueue and transfers control to the * caller of the coroutine. The mutex is unlocked during the wait and * locked again afterwards. */ #define qemu_co_queue_wait(queue, lock) \ - qemu_co_queue_wait_impl(queue, QEMU_MAKE_LOCKABLE(lock)) -void coroutine_fn qemu_co_queue_wait_impl(CoQueue *queue, QemuLockable *lock); + qemu_co_queue_wait_impl(queue, QEMU_MAKE_LOCKABLE(lock), 0) +#define qemu_co_queue_wait_flags(queue, lock, flags) \ + qemu_co_queue_wait_impl(queue, QEMU_MAKE_LOCKABLE(lock), (flags)) +void coroutine_fn qemu_co_queue_wait_impl(CoQueue *queue, QemuLockable *lock, + CoQueueWaitFlags flags); /** * Removes the next coroutine from the CoQueue, and queue it to run after |