1 files changed, 174 insertions, 0 deletions

diff --git a/fs/xfs/linux-2.6/xfs_sysctl.c b/fs/xfs/linux-2.6/xfs_sysctl.c
new file mode 100644
index 000000000000..0dc010356f4d
--- /dev/null
+++ b/fs/xfs/linux-2.6/xfs_sysctl.c
@@ -0,0 +1,174 @@
+/*
+ * 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_FS
+STATIC int
+xfs_stats_clear_proc_handler(
+        ctl_table       *ctl,
+        int             write,
+        struct file     *filp,
+        void            __user *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},
+
+        {XFS_INHERIT_NOSYM, "inherit_nosymlinks", &xfs_params.inherit_nosym.val,
+        sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+        &sysctl_intvec, NULL,
+        &xfs_params.inherit_nosym.min, &xfs_params.inherit_nosym.max},
+
+        {XFS_ROTORSTEP, "rotorstep", &xfs_params.rotorstep.val,
+        sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+        &sysctl_intvec, NULL, 
+        &xfs_params.rotorstep.min, &xfs_params.rotorstep.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}
+};
+
+void
+xfs_sysctl_register(void)
+{
+        xfs_table_header = register_sysctl_table(xfs_root_table, 1);
+}
+
+void
+xfs_sysctl_unregister(void)
+{
+        if (xfs_table_header)
+                unregister_sysctl_table(xfs_table_header);
+}