qemu/include/block/write-threshold.h
Markus Armbruster 02f95e91a6 block: Clean up includes
This commit was created with scripts/clean-includes.

All .c should include qemu/osdep.h first.  The script performs three
related cleanups:

* Ensure .c files include qemu/osdep.h first.
* Including it in a .h is redundant, since the .c  already includes
  it.  Drop such inclusions.
* Likewise, including headers qemu/osdep.h includes is redundant.
  Drop these, too.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20230202133830.2152150-16-armbru@redhat.com>
2023-02-08 07:28:05 +01:00

46 lines
1.2 KiB
C

/*
* QEMU System Emulator block write threshold notification
*
* Copyright Red Hat, Inc. 2014
*
* Authors:
* Francesco Romani <fromani@redhat.com>
*
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
* See the COPYING.LIB file in the top-level directory.
*/
#ifndef BLOCK_WRITE_THRESHOLD_H
#define BLOCK_WRITE_THRESHOLD_H
/*
* bdrv_write_threshold_set:
*
* Set the write threshold for block devices, in bytes.
* Notify when a write exceeds the threshold, meaning the device
* is becoming full, so it can be transparently resized.
* To be used with thin-provisioned block devices.
*
* Use threshold_bytes == 0 to disable.
*/
void bdrv_write_threshold_set(BlockDriverState *bs, uint64_t threshold_bytes);
/*
* bdrv_write_threshold_get
*
* Get the configured write threshold, in bytes.
* Zero means no threshold configured.
*/
uint64_t bdrv_write_threshold_get(const BlockDriverState *bs);
/*
* bdrv_write_threshold_check_write
*
* Check whether the specified request exceeds the write threshold.
* If so, send a corresponding event and disable write threshold checking.
*/
void bdrv_write_threshold_check_write(BlockDriverState *bs, int64_t offset,
int64_t bytes);
#endif