mirror_zfs/module/os/linux/zfs/spa_misc_os.c
ednadolski-ix 95f71c019d
Selectable block allocators
ZFS historically has had several space allocators that were
dynamically selectable.  While these have been retained in 
OpenZFS, only a single allocator has been statically compiled 
in. This patch compiles all allocators for OpenZFS and provides 
a module parameter to allow for manual selection between them.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Edmund Nadolski <edmund.nadolski@ixsystems.com>
Closes #15218
2023-09-01 18:00:30 -07:00

147 lines
3.0 KiB
C

/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or https://opensource.org/licenses/CDDL-1.0.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2019 by Delphix. All rights reserved.
* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
* Copyright 2013 Saso Kiselkov. All rights reserved.
* Copyright (c) 2017 Datto Inc.
* Copyright (c) 2017, Intel Corporation.
*/
#include <sys/zfs_context.h>
#include <sys/spa_impl.h>
#include <sys/spa.h>
#include <sys/txg.h>
#include <sys/unique.h>
#include <sys/dsl_pool.h>
#include <sys/dsl_dir.h>
#include <sys/dsl_prop.h>
#include <sys/fm/util.h>
#include <sys/dsl_scan.h>
#include <sys/fs/zfs.h>
#include <sys/kstat.h>
#include "zfs_prop.h"
int
param_set_deadman_failmode(const char *val, zfs_kernel_param_t *kp)
{
int error;
error = -param_set_deadman_failmode_common(val);
if (error == 0)
error = param_set_charp(val, kp);
return (error);
}
int
param_set_deadman_ziotime(const char *val, zfs_kernel_param_t *kp)
{
int error;
error = spl_param_set_u64(val, kp);
if (error < 0)
return (SET_ERROR(error));
spa_set_deadman_ziotime(MSEC2NSEC(zfs_deadman_ziotime_ms));
return (0);
}
int
param_set_deadman_synctime(const char *val, zfs_kernel_param_t *kp)
{
int error;
error = spl_param_set_u64(val, kp);
if (error < 0)
return (SET_ERROR(error));
spa_set_deadman_synctime(MSEC2NSEC(zfs_deadman_synctime_ms));
return (0);
}
int
param_set_slop_shift(const char *buf, zfs_kernel_param_t *kp)
{
unsigned long val;
int error;
error = kstrtoul(buf, 0, &val);
if (error)
return (SET_ERROR(error));
if (val < 1 || val > 31)
return (SET_ERROR(-EINVAL));
error = param_set_int(buf, kp);
if (error < 0)
return (SET_ERROR(error));
return (0);
}
int
param_set_active_allocator(const char *val, zfs_kernel_param_t *kp)
{
int error;
error = -param_set_active_allocator_common(val);
if (error == 0)
error = param_set_charp(val, kp);
return (error);
}
const char *
spa_history_zone(void)
{
return ("linux");
}
void
spa_import_os(spa_t *spa)
{
(void) spa;
}
void
spa_export_os(spa_t *spa)
{
(void) spa;
}
void
spa_activate_os(spa_t *spa)
{
(void) spa;
}
void
spa_deactivate_os(spa_t *spa)
{
(void) spa;
}