1 files changed, 149 insertions, 0 deletions

diff --git a/fs/xfs/quota/xfs_qm_stats.c b/fs/xfs/quota/xfs_qm_stats.c
new file mode 100644
index 000000000000..29978e037fee
--- /dev/null
+++ b/fs/xfs/quota/xfs_qm_stats.c
@@ -0,0 +1,149 @@
+/*
+ * Copyright (c) 2000-2003 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_fs.h"
+#include "xfs_inum.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_dir.h"
+#include "xfs_dir2.h"
+#include "xfs_alloc.h"
+#include "xfs_dmapi.h"
+#include "xfs_quota.h"
+#include "xfs_mount.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_ialloc_btree.h"
+#include "xfs_btree.h"
+#include "xfs_ialloc.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dir_sf.h"
+#include "xfs_dir2_sf.h"
+#include "xfs_dinode.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bit.h"
+#include "xfs_rtalloc.h"
+#include "xfs_error.h"
+#include "xfs_itable.h"
+#include "xfs_rw.h"
+#include "xfs_acl.h"
+#include "xfs_cap.h"
+#include "xfs_mac.h"
+#include "xfs_attr.h"
+#include "xfs_buf_item.h"
+
+#include "xfs_qm.h"
+
+struct xqmstats xqmstats;
+
+STATIC int
+xfs_qm_read_xfsquota(
+        char            *buffer,
+        char            **start,
+        off_t           offset,
+        int             count,
+        int             *eof,
+        void            *data)
+{
+        int             len;
+
+        /* maximum; incore; ratio free to inuse; freelist */
+        len = sprintf(buffer, "%d\t%d\t%d\t%u\n",
+                        ndquot,
+                        xfs_Gqm? atomic_read(&xfs_Gqm->qm_totaldquots) : 0,
+                        xfs_Gqm? xfs_Gqm->qm_dqfree_ratio : 0,
+                        xfs_Gqm? xfs_Gqm->qm_dqfreelist.qh_nelems : 0);
+
+        if (offset >= len) {
+                *start = buffer;
+                *eof = 1;
+                return 0;
+        }
+        *start = buffer + offset;
+        if ((len -= offset) > count)
+                return count;
+        *eof = 1;
+
+        return len;
+}
+
+STATIC int
+xfs_qm_read_stats(
+        char            *buffer,
+        char            **start,
+        off_t           offset,
+        int             count,
+        int             *eof,
+        void            *data)
+{
+        int             len;
+
+        /* quota performance statistics */
+        len = sprintf(buffer, "qm %u %u %u %u %u %u %u %u\n",
+                        xqmstats.xs_qm_dqreclaims,
+                        xqmstats.xs_qm_dqreclaim_misses,
+                        xqmstats.xs_qm_dquot_dups,
+                        xqmstats.xs_qm_dqcachemisses,
+                        xqmstats.xs_qm_dqcachehits,
+                        xqmstats.xs_qm_dqwants,
+                        xqmstats.xs_qm_dqshake_reclaims,
+                        xqmstats.xs_qm_dqinact_reclaims);
+
+        if (offset >= len) {
+                *start = buffer;
+                *eof = 1;
+                return 0;
+        }
+        *start = buffer + offset;
+        if ((len -= offset) > count)
+                return count;
+        *eof = 1;
+
+        return len;
+}
+
+void
+xfs_qm_init_procfs(void)
+{
+        create_proc_read_entry("fs/xfs/xqmstat", 0, NULL, xfs_qm_read_stats, NULL);
+        create_proc_read_entry("fs/xfs/xqm", 0, NULL, xfs_qm_read_xfsquota, NULL);
+}
+
+void
+xfs_qm_cleanup_procfs(void)
+{
+        remove_proc_entry("fs/xfs/xqm", NULL);
+        remove_proc_entry("fs/xfs/xqmstat", NULL);
+}