mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-12-27 03:19:35 +03:00
577d41d3b2
- Some optimizations for bqueue enqueue/dequeue. - Added a fix to prevent deadlock when both bqueue_enqueue_impl() and bqueue_dequeue() waits for signal to be triggered. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Ryan Moeller <ryan@iXsystems.com> Signed-off-by: Ameer Hamza <ahamza@ixsystems.com> Closes #13855
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* This file and its contents are supplied under the terms of the
|
|
* Common Development and Distribution License ("CDDL"), version 1.0.
|
|
* You may only use this file in accordance with the terms of version
|
|
* 1.0 of the CDDL.
|
|
*
|
|
* A full copy of the text of the CDDL should have accompanied this
|
|
* source. A copy of the CDDL is also available via the Internet at
|
|
* http://www.illumos.org/license/CDDL.
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright (c) 2014, 2018 by Delphix. All rights reserved.
|
|
*/
|
|
|
|
#ifndef _BQUEUE_H
|
|
#define _BQUEUE_H
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include <sys/zfs_context.h>
|
|
|
|
typedef struct bqueue {
|
|
list_t bq_list;
|
|
kmutex_t bq_lock;
|
|
kcondvar_t bq_add_cv;
|
|
kcondvar_t bq_pop_cv;
|
|
size_t bq_size;
|
|
size_t bq_maxsize;
|
|
uint_t bq_fill_fraction;
|
|
size_t bq_node_offset;
|
|
} bqueue_t;
|
|
|
|
typedef struct bqueue_node {
|
|
list_node_t bqn_node;
|
|
size_t bqn_size;
|
|
} bqueue_node_t;
|
|
|
|
|
|
int bqueue_init(bqueue_t *, uint_t, size_t, size_t);
|
|
void bqueue_destroy(bqueue_t *);
|
|
void bqueue_enqueue(bqueue_t *, void *, size_t);
|
|
void bqueue_enqueue_flush(bqueue_t *, void *, size_t);
|
|
void *bqueue_dequeue(bqueue_t *);
|
|
boolean_t bqueue_empty(bqueue_t *);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _BQUEUE_H */
|