xfs: remove subdirectories

Use the move from Linux 2.6 to Linux 3.x as an excuse to kill the
annoying subdirectories in the XFS source code.  Besides the large
amount of file rename the only changes are to the Makefile, a few
files including headers with the subdirectory prefix, and the binary
sysctl compat code that includes a header under fs/xfs/ from
kernel/.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 252 insertions, 0 deletions

diff --git a/fs/xfs/xfs_sysctl.c b/fs/xfs/xfs_sysctl.c
new file mode 100644
index 000000000000..ee2d2adaa438
--- /dev/null
+++ b/fs/xfs/xfs_sysctl.c
@@ -0,0 +1,252 @@
+/*
+ * Copyright (c) 2001-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms 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.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include "xfs.h"
+#include <linux/sysctl.h>
+#include <linux/proc_fs.h>
+#include "xfs_error.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,
+        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, buffer, lenp, ppos);
+
+        if (!ret && write && *valp) {
+                xfs_notice(NULL, "Clearing xfsstats");
+                for_each_possible_cpu(c) {
+                        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;
+}
+
+STATIC int
+xfs_panic_mask_proc_handler(
+        ctl_table       *ctl,
+        int             write,
+        void            __user *buffer,
+        size_t          *lenp,
+        loff_t          *ppos)
+{
+        int             ret, *valp = ctl->data;
+
+        ret = proc_dointvec_minmax(ctl, write, buffer, lenp, ppos);
+        if (!ret && write) {
+                xfs_panic_mask = *valp;
+#ifdef DEBUG
+                xfs_panic_mask |= (XFS_PTAG_SHUTDOWN_CORRUPT | XFS_PTAG_LOGRES);
+#endif
+        }
+        return ret;
+}
+#endif /* CONFIG_PROC_FS */
+
+static ctl_table xfs_table[] = {
+        {
+                .procname       = "irix_sgid_inherit",
+                .data           = &xfs_params.sgid_inherit.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.sgid_inherit.min,
+                .extra2         = &xfs_params.sgid_inherit.max
+        },
+        {
+                .procname       = "irix_symlink_mode",
+                .data           = &xfs_params.symlink_mode.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.symlink_mode.min,
+                .extra2         = &xfs_params.symlink_mode.max
+        },
+        {
+                .procname       = "panic_mask",
+                .data           = &xfs_params.panic_mask.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = xfs_panic_mask_proc_handler,
+                .extra1         = &xfs_params.panic_mask.min,
+                .extra2         = &xfs_params.panic_mask.max
+        },
+
+        {
+                .procname       = "error_level",
+                .data           = &xfs_params.error_level.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.error_level.min,
+                .extra2         = &xfs_params.error_level.max
+        },
+        {
+                .procname       = "xfssyncd_centisecs",
+                .data           = &xfs_params.syncd_timer.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.syncd_timer.min,
+                .extra2         = &xfs_params.syncd_timer.max
+        },
+        {
+                .procname       = "inherit_sync",
+                .data           = &xfs_params.inherit_sync.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.inherit_sync.min,
+                .extra2         = &xfs_params.inherit_sync.max
+        },
+        {
+                .procname       = "inherit_nodump",
+                .data           = &xfs_params.inherit_nodump.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.inherit_nodump.min,
+                .extra2         = &xfs_params.inherit_nodump.max
+        },
+        {
+                .procname       = "inherit_noatime",
+                .data           = &xfs_params.inherit_noatim.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.inherit_noatim.min,
+                .extra2         = &xfs_params.inherit_noatim.max
+        },
+        {
+                .procname       = "xfsbufd_centisecs",
+                .data           = &xfs_params.xfs_buf_timer.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.xfs_buf_timer.min,
+                .extra2         = &xfs_params.xfs_buf_timer.max
+        },
+        {
+                .procname       = "age_buffer_centisecs",
+                .data           = &xfs_params.xfs_buf_age.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.xfs_buf_age.min,
+                .extra2         = &xfs_params.xfs_buf_age.max
+        },
+        {
+                .procname       = "inherit_nosymlinks",
+                .data           = &xfs_params.inherit_nosym.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.inherit_nosym.min,
+                .extra2         = &xfs_params.inherit_nosym.max
+        },
+        {
+                .procname       = "rotorstep",
+                .data           = &xfs_params.rotorstep.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.rotorstep.min,
+                .extra2         = &xfs_params.rotorstep.max
+        },
+        {
+                .procname       = "inherit_nodefrag",
+                .data           = &xfs_params.inherit_nodfrg.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.inherit_nodfrg.min,
+                .extra2         = &xfs_params.inherit_nodfrg.max
+        },
+        {
+                .procname       = "filestream_centisecs",
+                .data           = &xfs_params.fstrm_timer.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = proc_dointvec_minmax,
+                .extra1         = &xfs_params.fstrm_timer.min,
+                .extra2         = &xfs_params.fstrm_timer.max,
+        },
+        /* please keep this the last entry */
+#ifdef CONFIG_PROC_FS
+        {
+                .procname       = "stats_clear",
+                .data           = &xfs_params.stats_clear.val,
+                .maxlen         = sizeof(int),
+                .mode           = 0644,
+                .proc_handler   = xfs_stats_clear_proc_handler,
+                .extra1         = &xfs_params.stats_clear.min,
+                .extra2         = &xfs_params.stats_clear.max
+        },
+#endif /* CONFIG_PROC_FS */
+
+        {}
+};
+
+static ctl_table xfs_dir_table[] = {
+        {
+                .procname       = "xfs",
+                .mode           = 0555,
+                .child          = xfs_table
+        },
+        {}
+};
+
+static ctl_table xfs_root_table[] = {
+        {
+                .procname       = "fs",
+                .mode           = 0555,
+                .child          = xfs_dir_table
+        },
+        {}
+};
+
+int
+xfs_sysctl_register(void)
+{
+        xfs_table_header = register_sysctl_table(xfs_root_table);
+        if (!xfs_table_header)
+                return -ENOMEM;
+        return 0;
+}
+
+void
+xfs_sysctl_unregister(void)
+{
+        unregister_sysctl_table(xfs_table_header);
+}