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_writethrough; 36 atomic_t netfs_n_wh_dio_write; 37 atomic_t netfs_n_wh_writepages; 38 atomic_t netfs_n_wh_copy_to_cache; 39 atomic_t netfs_n_wh_wstream_conflict; 40 atomic_t netfs_n_wh_upload; 41 atomic_t netfs_n_wh_upload_done; 42 atomic_t netfs_n_wh_upload_failed; 43 atomic_t netfs_n_wh_write; 44 atomic_t netfs_n_wh_write_done; 45 atomic_t netfs_n_wh_write_failed; 46 atomic_t netfs_n_wh_retry_write_req; 47 atomic_t netfs_n_wh_retry_write_subreq; 48 atomic_t netfs_n_wb_lock_skip; 49 atomic_t netfs_n_wb_lock_wait; 50 atomic_t netfs_n_folioq; 51 52 int netfs_stats_show(struct seq_file *m, void *v) 53 { 54 seq_printf(m, "Reads : DR=%u RA=%u RF=%u RS=%u WB=%u WBZ=%u\n", 55 atomic_read(&netfs_n_rh_dio_read), 56 atomic_read(&netfs_n_rh_readahead), 57 atomic_read(&netfs_n_rh_read_folio), 58 atomic_read(&netfs_n_rh_read_single), 59 atomic_read(&netfs_n_rh_write_begin), 60 atomic_read(&netfs_n_rh_write_zskip)); 61 seq_printf(m, "Writes : BW=%u WT=%u DW=%u WP=%u 2C=%u\n", 62 atomic_read(&netfs_n_wh_buffered_write), 63 atomic_read(&netfs_n_wh_writethrough), 64 atomic_read(&netfs_n_wh_dio_write), 65 atomic_read(&netfs_n_wh_writepages), 66 atomic_read(&netfs_n_wh_copy_to_cache)); 67 seq_printf(m, "ZeroOps: ZR=%u sh=%u sk=%u\n", 68 atomic_read(&netfs_n_rh_zero), 69 atomic_read(&netfs_n_rh_short_read), 70 atomic_read(&netfs_n_rh_write_zskip)); 71 seq_printf(m, "DownOps: DL=%u ds=%u df=%u di=%u\n", 72 atomic_read(&netfs_n_rh_download), 73 atomic_read(&netfs_n_rh_download_done), 74 atomic_read(&netfs_n_rh_download_failed), 75 atomic_read(&netfs_n_rh_download_instead)); 76 seq_printf(m, "CaRdOps: RD=%u rs=%u rf=%u\n", 77 atomic_read(&netfs_n_rh_read), 78 atomic_read(&netfs_n_rh_read_done), 79 atomic_read(&netfs_n_rh_read_failed)); 80 seq_printf(m, "UpldOps: UL=%u us=%u uf=%u\n", 81 atomic_read(&netfs_n_wh_upload), 82 atomic_read(&netfs_n_wh_upload_done), 83 atomic_read(&netfs_n_wh_upload_failed)); 84 seq_printf(m, "CaWrOps: WR=%u ws=%u wf=%u\n", 85 atomic_read(&netfs_n_wh_write), 86 atomic_read(&netfs_n_wh_write_done), 87 atomic_read(&netfs_n_wh_write_failed)); 88 seq_printf(m, "Retries: rq=%u rs=%u wq=%u ws=%u\n", 89 atomic_read(&netfs_n_rh_retry_read_req), 90 atomic_read(&netfs_n_rh_retry_read_subreq), 91 atomic_read(&netfs_n_wh_retry_write_req), 92 atomic_read(&netfs_n_wh_retry_write_subreq)); 93 seq_printf(m, "Objs : rr=%u sr=%u foq=%u wsc=%u\n", 94 atomic_read(&netfs_n_rh_rreq), 95 atomic_read(&netfs_n_rh_sreq), 96 atomic_read(&netfs_n_folioq), 97 atomic_read(&netfs_n_wh_wstream_conflict)); 98 seq_printf(m, "WbLock : skip=%u wait=%u\n", 99 atomic_read(&netfs_n_wb_lock_skip), 100 atomic_read(&netfs_n_wb_lock_wait)); 101 return fscache_stats_show(m); 102 } 103 EXPORT_SYMBOL(netfs_stats_show); 104