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ad9e767657
Originally it was thought it would be useful to split up the kmods by functionality. This would allow external consumers to only load what was needed. However, in practice we've never had a case where this functionality would be needed, and conversely managing multiple kmods can be awkward. Therefore, this change merges all but the spl.ko kmod in to a single zfs.ko kmod. Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz> Closes #13274
164 lines
4.9 KiB
C
164 lines
4.9 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://www.opensolaris.org/os/licensing.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*/
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/*
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* Copyright (C) 2016 Gvozden Neskovic <neskovic@gmail.com>.
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* Copyright (c) 2020 by Delphix. All rights reserved.
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*/
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#ifndef _MOD_COMPAT_H
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#define _MOD_COMPAT_H
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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/* Grsecurity kernel API change */
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#ifdef MODULE_PARAM_CALL_CONST
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typedef const struct kernel_param zfs_kernel_param_t;
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#else
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typedef struct kernel_param zfs_kernel_param_t;
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#endif
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#define ZMOD_RW 0644
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#define ZMOD_RD 0444
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#define INT int
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#define LONG long
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/* BEGIN CSTYLED */
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#define UINT uint
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#define ULONG ulong
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/* END CSTYLED */
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#define STRING charp
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enum scope_prefix_types {
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zfs,
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zfs_arc,
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zfs_condense,
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zfs_dbuf,
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zfs_dbuf_cache,
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zfs_deadman,
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zfs_dedup,
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zfs_l2arc,
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zfs_livelist,
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zfs_livelist_condense,
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zfs_lua,
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zfs_metaslab,
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zfs_mg,
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zfs_multihost,
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zfs_prefetch,
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zfs_reconstruct,
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zfs_recv,
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zfs_send,
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zfs_spa,
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zfs_trim,
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zfs_txg,
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zfs_vdev,
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zfs_vdev_cache,
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zfs_vdev_file,
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zfs_vdev_mirror,
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zfs_vnops,
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zfs_zevent,
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zfs_zio,
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zfs_zil
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};
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/*
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* Declare a module parameter / sysctl node
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*
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* "scope_prefix" the part of the sysctl / sysfs tree the node resides under
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* (currently a no-op on Linux)
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* "name_prefix" the part of the variable name that will be excluded from the
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* exported names on platforms with a hierarchical namespace
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* "name" the part of the variable that will be exposed on platforms with a
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* hierarchical namespace, or as name_prefix ## name on Linux
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* "type" the variable type
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* "perm" the permissions (read/write or read only)
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* "desc" a brief description of the option
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*
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* Examples:
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* ZFS_MODULE_PARAM(zfs_vdev_mirror, zfs_vdev_mirror_, rotating_inc, UINT,
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* ZMOD_RW, "Rotating media load increment for non-seeking I/O's");
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* on FreeBSD:
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* vfs.zfs.vdev.mirror.rotating_inc
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* on Linux:
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* zfs_vdev_mirror_rotating_inc
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*
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* ZFS_MODULE_PARAM(zfs, , dmu_prefetch_max, UINT, ZMOD_RW,
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* "Limit one prefetch call to this size");
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* on FreeBSD:
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* vfs.zfs.dmu_prefetch_max
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* on Linux:
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* dmu_prefetch_max
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*/
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#define ZFS_MODULE_PARAM(scope_prefix, name_prefix, name, type, perm, desc) \
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_Static_assert( \
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sizeof (scope_prefix) == sizeof (enum scope_prefix_types), \
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"" #scope_prefix " size mismatch with enum scope_prefix_types"); \
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module_param(name_prefix ## name, type, perm); \
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MODULE_PARM_DESC(name_prefix ## name, desc)
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/*
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* Declare a module parameter / sysctl node
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*
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* "scope_prefix" the part of the the sysctl / sysfs tree the node resides under
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* (currently a no-op on Linux)
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* "name_prefix" the part of the variable name that will be excluded from the
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* exported names on platforms with a hierarchical namespace
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* "name" the part of the variable that will be exposed on platforms with a
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* hierarchical namespace, or as name_prefix ## name on Linux
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* "setfunc" setter function
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* "getfunc" getter function
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* "perm" the permissions (read/write or read only)
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* "desc" a brief description of the option
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*
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* Examples:
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* ZFS_MODULE_PARAM_CALL(zfs_spa, spa_, slop_shift, param_set_slop_shift,
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* param_get_int, ZMOD_RW, "Reserved free space in pool");
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* on FreeBSD:
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* vfs.zfs.spa_slop_shift
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* on Linux:
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* spa_slop_shift
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*/
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#define ZFS_MODULE_PARAM_CALL( \
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scope_prefix, name_prefix, name, setfunc, getfunc, perm, desc) \
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_Static_assert( \
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sizeof (scope_prefix) == sizeof (enum scope_prefix_types), \
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"" #scope_prefix " size mismatch with enum scope_prefix_types"); \
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module_param_call(name_prefix ## name, setfunc, getfunc, \
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&name_prefix ## name, perm); \
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MODULE_PARM_DESC(name_prefix ## name, desc)
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/*
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* As above, but there is no variable with the name name_prefix ## name,
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* so NULL is passed to module_param_call instead.
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*/
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#define ZFS_MODULE_VIRTUAL_PARAM_CALL( \
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scope_prefix, name_prefix, name, setfunc, getfunc, perm, desc) \
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_Static_assert( \
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sizeof (scope_prefix) == sizeof (enum scope_prefix_types), \
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"" #scope_prefix " size mismatch with enum scope_prefix_types"); \
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module_param_call(name_prefix ## name, setfunc, getfunc, NULL, perm); \
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MODULE_PARM_DESC(name_prefix ## name, desc)
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#define ZFS_MODULE_PARAM_ARGS const char *buf, zfs_kernel_param_t *kp
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#endif /* _MOD_COMPAT_H */
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