Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/fs/xfs/linux-2.6/xfs_stats.c b/fs/xfs/linux-2.6/xfs_stats.c
new file mode 100644
index 0000000..aaf5ddb
--- /dev/null
+++ b/fs/xfs/linux-2.6/xfs_stats.c
@@ -0,0 +1,132 @@
+/*
+ * 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 <linux/proc_fs.h>
+
+DEFINE_PER_CPU(struct xfsstats, xfsstats);
+
+STATIC int
+xfs_read_xfsstats(
+ char *buffer,
+ char **start,
+ off_t offset,
+ int count,
+ int *eof,
+ void *data)
+{
+ int c, i, j, len, val;
+ __uint64_t xs_xstrat_bytes = 0;
+ __uint64_t xs_write_bytes = 0;
+ __uint64_t xs_read_bytes = 0;
+
+ static struct xstats_entry {
+ char *desc;
+ int endpoint;
+ } xstats[] = {
+ { "extent_alloc", XFSSTAT_END_EXTENT_ALLOC },
+ { "abt", XFSSTAT_END_ALLOC_BTREE },
+ { "blk_map", XFSSTAT_END_BLOCK_MAPPING },
+ { "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE },
+ { "dir", XFSSTAT_END_DIRECTORY_OPS },
+ { "trans", XFSSTAT_END_TRANSACTIONS },
+ { "ig", XFSSTAT_END_INODE_OPS },
+ { "log", XFSSTAT_END_LOG_OPS },
+ { "push_ail", XFSSTAT_END_TAIL_PUSHING },
+ { "xstrat", XFSSTAT_END_WRITE_CONVERT },
+ { "rw", XFSSTAT_END_READ_WRITE_OPS },
+ { "attr", XFSSTAT_END_ATTRIBUTE_OPS },
+ { "icluster", XFSSTAT_END_INODE_CLUSTER },
+ { "vnodes", XFSSTAT_END_VNODE_OPS },
+ { "buf", XFSSTAT_END_BUF },
+ };
+
+ /* Loop over all stats groups */
+ for (i=j=len = 0; i < sizeof(xstats)/sizeof(struct xstats_entry); i++) {
+ len += sprintf(buffer + len, xstats[i].desc);
+ /* inner loop does each group */
+ while (j < xstats[i].endpoint) {
+ val = 0;
+ /* sum over all cpus */
+ for (c = 0; c < NR_CPUS; c++) {
+ if (!cpu_possible(c)) continue;
+ val += *(((__u32*)&per_cpu(xfsstats, c) + j));
+ }
+ len += sprintf(buffer + len, " %u", val);
+ j++;
+ }
+ buffer[len++] = '\n';
+ }
+ /* extra precision counters */
+ for (i = 0; i < NR_CPUS; i++) {
+ if (!cpu_possible(i)) continue;
+ xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes;
+ xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes;
+ xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
+ }
+
+ len += sprintf(buffer + len, "xpc %Lu %Lu %Lu\n",
+ xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
+ len += sprintf(buffer + len, "debug %u\n",
+#if defined(DEBUG)
+ 1);
+#else
+ 0);
+#endif
+
+ if (offset >= len) {
+ *start = buffer;
+ *eof = 1;
+ return 0;
+ }
+ *start = buffer + offset;
+ if ((len -= offset) > count)
+ return count;
+ *eof = 1;
+
+ return len;
+}
+
+void
+xfs_init_procfs(void)
+{
+ if (!proc_mkdir("fs/xfs", NULL))
+ return;
+ create_proc_read_entry("fs/xfs/stat", 0, NULL, xfs_read_xfsstats, NULL);
+}
+
+void
+xfs_cleanup_procfs(void)
+{
+ remove_proc_entry("fs/xfs/stat", NULL);
+ remove_proc_entry("fs/xfs", NULL);
+}
