/* * Copyright (c) 2001-2004 Silicon Graphics, Inc.  All Rights Reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * Further, this software is distributed without any warranty that it is * free of the rightful claim of any third person regarding infringement * or the like.  Any license provided herein, whether implied or * otherwise, applies only to this software file.  Patent licenses, if * any, provided herein do not apply to combinations of this program with * other software, or any other product whatsoever. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc., 59 * Temple Place - Suite 330, Boston MA 02111-1307, USA. * * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, * Mountain View, CA  94043, or: * * http://www.sgi.com * * For further information regarding this notice, see: * * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ */#include "xfs.h"#include "xfs_rw.h"#include <linux/sysctl.h>#include <linux/proc_fs.h>static struct ctl_table_header *xfs_table_header;#ifdef CONFIG_PROC_FSSTATIC intxfs_stats_clear_proc_handler(	ctl_table	*ctl,	int		write,	struct file	*filp,	void		*buffer,	size_t		*lenp,	loff_t		*ppos){	int		c, ret, *valp = ctl->data;	__uint32_t	vn_active;	ret = proc_dointvec_minmax(ctl, write, filp, buffer, lenp, ppos);	if (!ret && write && *valp) {		printk("XFS Clearing xfsstats\n");		for (c = 0; c < NR_CPUS; c++) {			if (!cpu_possible(c)) continue;			preempt_disable();			/* save vn_active, it's a universal truth! */			vn_active = per_cpu(xfsstats, c).vn_active;			memset(&per_cpu(xfsstats, c), 0,			       sizeof(struct xfsstats));			per_cpu(xfsstats, c).vn_active = vn_active;			preempt_enable();		}		xfs_stats_clear = 0;	}	return ret;}#endif /* CONFIG_PROC_FS */STATIC ctl_table xfs_table[] = {	{XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL, 	&xfs_params.restrict_chown.min, &xfs_params.restrict_chown.max},	{XFS_SGID_INHERIT, "irix_sgid_inherit", &xfs_params.sgid_inherit.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL,	&xfs_params.sgid_inherit.min, &xfs_params.sgid_inherit.max},	{XFS_SYMLINK_MODE, "irix_symlink_mode", &xfs_params.symlink_mode.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL, 	&xfs_params.symlink_mode.min, &xfs_params.symlink_mode.max},	{XFS_PANIC_MASK, "panic_mask", &xfs_params.panic_mask.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL, 	&xfs_params.panic_mask.min, &xfs_params.panic_mask.max},	{XFS_ERRLEVEL, "error_level", &xfs_params.error_level.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL, 	&xfs_params.error_level.min, &xfs_params.error_level.max},	{XFS_SYNCD_TIMER, "xfssyncd_centisecs", &xfs_params.syncd_timer.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL, 	&xfs_params.syncd_timer.min, &xfs_params.syncd_timer.max},	{XFS_INHERIT_SYNC, "inherit_sync", &xfs_params.inherit_sync.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL,	&xfs_params.inherit_sync.min, &xfs_params.inherit_sync.max},	{XFS_INHERIT_NODUMP, "inherit_nodump", &xfs_params.inherit_nodump.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL,	&xfs_params.inherit_nodump.min, &xfs_params.inherit_nodump.max},	{XFS_INHERIT_NOATIME, "inherit_noatime", &xfs_params.inherit_noatim.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL,	&xfs_params.inherit_noatim.min, &xfs_params.inherit_noatim.max},		{XFS_BUF_TIMER, "xfsbufd_centisecs", &xfs_params.xfs_buf_timer.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL,	&xfs_params.xfs_buf_timer.min, &xfs_params.xfs_buf_timer.max},	{XFS_BUF_AGE, "age_buffer_centisecs", &xfs_params.xfs_buf_age.val,	sizeof(int), 0644, NULL, &proc_dointvec_minmax,	&sysctl_intvec, NULL,	&xfs_params.xfs_buf_age.min, &xfs_params.xfs_buf_age.max},	/* please keep this the last entry */#ifdef CONFIG_PROC_FS	{XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val,	sizeof(int), 0644, NULL, &xfs_stats_clear_proc_handler,	&sysctl_intvec, NULL, 	&xfs_params.stats_clear.min, &xfs_params.stats_clear.max},#endif /* CONFIG_PROC_FS */	{0}};STATIC ctl_table xfs_dir_table[] = {	{FS_XFS, "xfs", NULL, 0, 0555, xfs_table},	{0}};STATIC ctl_table xfs_root_table[] = {	{CTL_FS, "fs",  NULL, 0, 0555, xfs_dir_table},	{0}};voidxfs_sysctl_register(void){	xfs_table_header = register_sysctl_table(xfs_root_table, 1);}voidxfs_sysctl_unregister(void){	if (xfs_table_header)		unregister_sysctl_table(xfs_table_header);}