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_dio_read; 13 atomic_t netfs_n_rh_readahead; 14 atomic_t netfs_n_rh_read_folio; 15 atomic_t netfs_n_rh_read_single; 16 atomic_t netfs_n_rh_rreq; 17 atomic_t netfs_n_rh_sreq; 18 atomic_t netfs_n_rh_download; 19 atomic_t netfs_n_rh_download_done; 20 atomic_t netfs_n_rh_download_failed; 21 atomic_t netfs_n_rh_download_instead; 22 atomic_t netfs_n_rh_read; 23 atomic_t netfs_n_rh_read_done; 24 atomic_t netfs_n_rh_read_failed; 25 atomic_t netfs_n_rh_zero; 26 atomic_t netfs_n_rh_short_read; 27 atomic_t netfs_n_rh_write; 28 atomic_t netfs_n_rh_write_begin; 29 atomic_t netfs_n_rh_write_done; 30 atomic_t netfs_n_rh_write_failed; 31 atomic_t netfs_n_rh_write_zskip; 32 atomic_t netfs_n_rh_retry_read_req; 33 atomic_t netfs_n_rh_retry_read_subreq; 34 atomic_t netfs_n_wh_buffered_write; 35 atomic_t netfs_n_wh_dio_write; 36 atomic_t netfs_n_wh_writepages; 37 atomic_t netfs_n_wh_copy_to_cache; 38 atomic_t netfs_n_wh_wstream_conflict; 39 atomic_t netfs_n_wh_upload; 40 atomic_t netfs_n_wh_upload_done; 41 atomic_t netfs_n_wh_upload_failed; 42 atomic_t netfs_n_wh_write; 43 atomic_t netfs_n_wh_write_done; 44 atomic_t netfs_n_wh_write_failed; 45 atomic_t netfs_n_wh_retry_write_req; 46 atomic_t netfs_n_wh_retry_write_subreq; 47 atomic_t netfs_n_wb_lock_skip; 48 atomic_t netfs_n_wb_lock_wait; 49 atomic_t netfs_n_folioq; 50 51 int netfs_stats_show(struct seq_file *m, void *v) 52 { 53 seq_printf(m, "Reads : DR=%u RA=%u RF=%u RS=%u WB=%u WBZ=%u\n", 54 atomic_read(&netfs_n_rh_dio_read), 55 atomic_read(&netfs_n_rh_readahead), 56 atomic_read(&netfs_n_rh_read_folio), 57 atomic_read(&netfs_n_rh_read_single), 58 atomic_read(&netfs_n_rh_write_begin), 59 atomic_read(&netfs_n_rh_write_zskip)); 60 seq_printf(m, "Writes : BW=%u DW=%u WP=%u 2C=%u\n", 61 atomic_read(&netfs_n_wh_buffered_write), 62 atomic_read(&netfs_n_wh_dio_write), 63 atomic_read(&netfs_n_wh_writepages), 64 atomic_read(&netfs_n_wh_copy_to_cache)); 65 seq_printf(m, "ZeroOps: ZR=%u sh=%u sk=%u\n", 66 atomic_read(&netfs_n_rh_zero), 67 atomic_read(&netfs_n_rh_short_read), 68 atomic_read(&netfs_n_rh_write_zskip)); 69 seq_printf(m, "DownOps: DL=%u ds=%u df=%u di=%u\n", 70 atomic_read(&netfs_n_rh_download), 71 atomic_read(&netfs_n_rh_download_done), 72 atomic_read(&netfs_n_rh_download_failed), 73 atomic_read(&netfs_n_rh_download_instead)); 74 seq_printf(m, "CaRdOps: RD=%u rs=%u rf=%u\n", 75 atomic_read(&netfs_n_rh_read), 76 atomic_read(&netfs_n_rh_read_done), 77 atomic_read(&netfs_n_rh_read_failed)); 78 seq_printf(m, "UpldOps: UL=%u us=%u uf=%u\n", 79 atomic_read(&netfs_n_wh_upload), 80 atomic_read(&netfs_n_wh_upload_done), 81 atomic_read(&netfs_n_wh_upload_failed)); 82 seq_printf(m, "CaWrOps: WR=%u ws=%u wf=%u\n", 83 atomic_read(&netfs_n_wh_write), 84 atomic_read(&netfs_n_wh_write_done), 85 atomic_read(&netfs_n_wh_write_failed)); 86 seq_printf(m, "Retries: rq=%u rs=%u wq=%u ws=%u\n", 87 atomic_read(&netfs_n_rh_retry_read_req), 88 atomic_read(&netfs_n_rh_retry_read_subreq), 89 atomic_read(&netfs_n_wh_retry_write_req), 90 atomic_read(&netfs_n_wh_retry_write_subreq)); 91 seq_printf(m, "Objs : rr=%u sr=%u foq=%u wsc=%u\n", 92 atomic_read(&netfs_n_rh_rreq), 93 atomic_read(&netfs_n_rh_sreq), 94 atomic_read(&netfs_n_folioq), 95 atomic_read(&netfs_n_wh_wstream_conflict)); 96 seq_printf(m, "WbLock : skip=%u wait=%u\n", 97 atomic_read(&netfs_n_wb_lock_skip), 98 atomic_read(&netfs_n_wb_lock_wait)); 99 return fscache_stats_show(m); 100 } 101 EXPORT_SYMBOL(netfs_stats_show); 102