fs/netfs/stats.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /* Netfs support statistics
   3  *
   4  * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved.
   5  * Written by David Howells (dhowells@redhat.com)
   6  */
   7
   8 #include <linux/export.h>
   9 #include <linux/seq_file.h>
  10 #include "internal.h"
  11
  12 atomic_t netfs_n_rh_readahead;
  13 atomic_t netfs_n_rh_readpage;
  14 atomic_t netfs_n_rh_rreq;
  15 atomic_t netfs_n_rh_sreq;
  16 atomic_t netfs_n_rh_download;
  17 atomic_t netfs_n_rh_download_done;
  18 atomic_t netfs_n_rh_download_failed;
  19 atomic_t netfs_n_rh_download_instead;
  20 atomic_t netfs_n_rh_read;
  21 atomic_t netfs_n_rh_read_done;
  22 atomic_t netfs_n_rh_read_failed;
  23 atomic_t netfs_n_rh_zero;
  24 atomic_t netfs_n_rh_short_read;
  25 atomic_t netfs_n_rh_write;
  26 atomic_t netfs_n_rh_write_begin;
  27 atomic_t netfs_n_rh_write_done;
  28 atomic_t netfs_n_rh_write_failed;
  29 atomic_t netfs_n_rh_write_zskip;
  30
  31 void netfs_stats_show(struct seq_file *m)
  32 {
  33         seq_printf(m, "RdHelp : RA=%u RP=%u WB=%u WBZ=%u rr=%u sr=%u\n",
  34                    atomic_read(&netfs_n_rh_readahead),
  35                    atomic_read(&netfs_n_rh_readpage),
  36                    atomic_read(&netfs_n_rh_write_begin),
  37                    atomic_read(&netfs_n_rh_write_zskip),
  38                    atomic_read(&netfs_n_rh_rreq),
  39                    atomic_read(&netfs_n_rh_sreq));
  40         seq_printf(m, "RdHelp : ZR=%u sh=%u sk=%u\n",
  41                    atomic_read(&netfs_n_rh_zero),
  42                    atomic_read(&netfs_n_rh_short_read),
  43                    atomic_read(&netfs_n_rh_write_zskip));
  44         seq_printf(m, "RdHelp : DL=%u ds=%u df=%u di=%u\n",
  45                    atomic_read(&netfs_n_rh_download),
  46                    atomic_read(&netfs_n_rh_download_done),
  47                    atomic_read(&netfs_n_rh_download_failed),
  48                    atomic_read(&netfs_n_rh_download_instead));
  49         seq_printf(m, "RdHelp : RD=%u rs=%u rf=%u\n",
  50                    atomic_read(&netfs_n_rh_read),
  51                    atomic_read(&netfs_n_rh_read_done),
  52                    atomic_read(&netfs_n_rh_read_failed));
  53         seq_printf(m, "RdHelp : WR=%u ws=%u wf=%u\n",
  54                    atomic_read(&netfs_n_rh_write),
  55                    atomic_read(&netfs_n_rh_write_done),
  56                    atomic_read(&netfs_n_rh_write_failed));
  57 }
  58 EXPORT_SYMBOL(netfs_stats_show);