ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/fs/xfs/xfs_stats.c b/marvell/linux/fs/xfs/xfs_stats.c
new file mode 100644
index 0000000..20e0534
--- /dev/null
+++ b/marvell/linux/fs/xfs/xfs_stats.c
@@ -0,0 +1,164 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ */
+#include "xfs.h"
+
+struct xstats xfsstats;
+
+static int counter_val(struct xfsstats __percpu *stats, int idx)
+{
+ int val = 0, cpu;
+
+ for_each_possible_cpu(cpu)
+ val += *(((__u32 *)per_cpu_ptr(stats, cpu) + idx));
+ return val;
+}
+
+int xfs_stats_format(struct xfsstats __percpu *stats, char *buf)
+{
+ int i, j;
+ int len = 0;
+ uint64_t xs_xstrat_bytes = 0;
+ uint64_t xs_write_bytes = 0;
+ uint64_t xs_read_bytes = 0;
+ uint64_t defer_relog = 0;
+
+ static const struct xstats_entry {
+ char *desc;
+ int endpoint;
+ } xstats[] = {
+ { "extent_alloc", xfsstats_offset(xs_abt_lookup) },
+ { "abt", xfsstats_offset(xs_blk_mapr) },
+ { "blk_map", xfsstats_offset(xs_bmbt_lookup) },
+ { "bmbt", xfsstats_offset(xs_dir_lookup) },
+ { "dir", xfsstats_offset(xs_trans_sync) },
+ { "trans", xfsstats_offset(xs_ig_attempts) },
+ { "ig", xfsstats_offset(xs_log_writes) },
+ { "log", xfsstats_offset(xs_try_logspace)},
+ { "push_ail", xfsstats_offset(xs_xstrat_quick)},
+ { "xstrat", xfsstats_offset(xs_write_calls) },
+ { "rw", xfsstats_offset(xs_attr_get) },
+ { "attr", xfsstats_offset(xs_iflush_count)},
+ { "icluster", xfsstats_offset(vn_active) },
+ { "vnodes", xfsstats_offset(xb_get) },
+ { "buf", xfsstats_offset(xs_abtb_2) },
+ { "abtb2", xfsstats_offset(xs_abtc_2) },
+ { "abtc2", xfsstats_offset(xs_bmbt_2) },
+ { "bmbt2", xfsstats_offset(xs_ibt_2) },
+ { "ibt2", xfsstats_offset(xs_fibt_2) },
+ { "fibt2", xfsstats_offset(xs_rmap_2) },
+ { "rmapbt", xfsstats_offset(xs_refcbt_2) },
+ { "refcntbt", xfsstats_offset(xs_qm_dqreclaims)},
+ /* we print both series of quota information together */
+ { "qm", xfsstats_offset(xs_xstrat_bytes)},
+ };
+
+ /* Loop over all stats groups */
+
+ for (i = j = 0; i < ARRAY_SIZE(xstats); i++) {
+ len += scnprintf(buf + len, PATH_MAX - len, "%s",
+ xstats[i].desc);
+ /* inner loop does each group */
+ for (; j < xstats[i].endpoint; j++)
+ len += scnprintf(buf + len, PATH_MAX - len, " %u",
+ counter_val(stats, j));
+ len += scnprintf(buf + len, PATH_MAX - len, "\n");
+ }
+ /* extra precision counters */
+ for_each_possible_cpu(i) {
+ xs_xstrat_bytes += per_cpu_ptr(stats, i)->s.xs_xstrat_bytes;
+ xs_write_bytes += per_cpu_ptr(stats, i)->s.xs_write_bytes;
+ xs_read_bytes += per_cpu_ptr(stats, i)->s.xs_read_bytes;
+ defer_relog += per_cpu_ptr(stats, i)->s.defer_relog;
+ }
+
+ len += scnprintf(buf + len, PATH_MAX-len, "xpc %Lu %Lu %Lu\n",
+ xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
+ len += scnprintf(buf + len, PATH_MAX-len, "defer_relog %llu\n",
+ defer_relog);
+ len += scnprintf(buf + len, PATH_MAX-len, "debug %u\n",
+#if defined(DEBUG)
+ 1);
+#else
+ 0);
+#endif
+
+ return len;
+}
+
+void xfs_stats_clearall(struct xfsstats __percpu *stats)
+{
+ int c;
+ uint32_t vn_active;
+
+ xfs_notice(NULL, "Clearing xfsstats");
+ for_each_possible_cpu(c) {
+ preempt_disable();
+ /* save vn_active, it's a universal truth! */
+ vn_active = per_cpu_ptr(stats, c)->s.vn_active;
+ memset(per_cpu_ptr(stats, c), 0, sizeof(*stats));
+ per_cpu_ptr(stats, c)->s.vn_active = vn_active;
+ preempt_enable();
+ }
+}
+
+#ifdef CONFIG_PROC_FS
+/* legacy quota interfaces */
+#ifdef CONFIG_XFS_QUOTA
+
+#define XFSSTAT_START_XQMSTAT xfsstats_offset(xs_qm_dqreclaims)
+#define XFSSTAT_END_XQMSTAT xfsstats_offset(xs_qm_dquot)
+
+static int xqm_proc_show(struct seq_file *m, void *v)
+{
+ /* maximum; incore; ratio free to inuse; freelist */
+ seq_printf(m, "%d\t%d\t%d\t%u\n",
+ 0, counter_val(xfsstats.xs_stats, XFSSTAT_END_XQMSTAT),
+ 0, counter_val(xfsstats.xs_stats, XFSSTAT_END_XQMSTAT + 1));
+ return 0;
+}
+
+/* legacy quota stats interface no 2 */
+static int xqmstat_proc_show(struct seq_file *m, void *v)
+{
+ int j;
+
+ seq_printf(m, "qm");
+ for (j = XFSSTAT_START_XQMSTAT; j < XFSSTAT_END_XQMSTAT; j++)
+ seq_printf(m, " %u", counter_val(xfsstats.xs_stats, j));
+ seq_putc(m, '\n');
+ return 0;
+}
+#endif /* CONFIG_XFS_QUOTA */
+
+int
+xfs_init_procfs(void)
+{
+ if (!proc_mkdir("fs/xfs", NULL))
+ return -ENOMEM;
+
+ if (!proc_symlink("fs/xfs/stat", NULL,
+ "/sys/fs/xfs/stats/stats"))
+ goto out;
+
+#ifdef CONFIG_XFS_QUOTA
+ if (!proc_create_single("fs/xfs/xqmstat", 0, NULL, xqmstat_proc_show))
+ goto out;
+ if (!proc_create_single("fs/xfs/xqm", 0, NULL, xqm_proc_show))
+ goto out;
+#endif
+ return 0;
+
+out:
+ remove_proc_subtree("fs/xfs", NULL);
+ return -ENOMEM;
+}
+
+void
+xfs_cleanup_procfs(void)
+{
+ remove_proc_subtree("fs/xfs", NULL);
+}
+#endif /* CONFIG_PROC_FS */