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Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
283 lines
9.9 KiB
C
283 lines
9.9 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* FS-Cache statistics
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*
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* Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
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* Written by David Howells (dhowells@redhat.com)
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*/
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#define FSCACHE_DEBUG_LEVEL THREAD
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#include <linux/module.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include "internal.h"
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/*
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* operation counters
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*/
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atomic_t fscache_n_op_pend;
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atomic_t fscache_n_op_run;
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atomic_t fscache_n_op_enqueue;
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atomic_t fscache_n_op_deferred_release;
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atomic_t fscache_n_op_initialised;
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atomic_t fscache_n_op_release;
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atomic_t fscache_n_op_gc;
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atomic_t fscache_n_op_cancelled;
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atomic_t fscache_n_op_rejected;
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atomic_t fscache_n_attr_changed;
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atomic_t fscache_n_attr_changed_ok;
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atomic_t fscache_n_attr_changed_nobufs;
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atomic_t fscache_n_attr_changed_nomem;
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atomic_t fscache_n_attr_changed_calls;
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atomic_t fscache_n_allocs;
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atomic_t fscache_n_allocs_ok;
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atomic_t fscache_n_allocs_wait;
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atomic_t fscache_n_allocs_nobufs;
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atomic_t fscache_n_allocs_intr;
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atomic_t fscache_n_allocs_object_dead;
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atomic_t fscache_n_alloc_ops;
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atomic_t fscache_n_alloc_op_waits;
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atomic_t fscache_n_retrievals;
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atomic_t fscache_n_retrievals_ok;
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atomic_t fscache_n_retrievals_wait;
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atomic_t fscache_n_retrievals_nodata;
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atomic_t fscache_n_retrievals_nobufs;
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atomic_t fscache_n_retrievals_intr;
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atomic_t fscache_n_retrievals_nomem;
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atomic_t fscache_n_retrievals_object_dead;
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atomic_t fscache_n_retrieval_ops;
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atomic_t fscache_n_retrieval_op_waits;
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atomic_t fscache_n_stores;
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atomic_t fscache_n_stores_ok;
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atomic_t fscache_n_stores_again;
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atomic_t fscache_n_stores_nobufs;
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atomic_t fscache_n_stores_oom;
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atomic_t fscache_n_store_ops;
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atomic_t fscache_n_store_calls;
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atomic_t fscache_n_store_pages;
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atomic_t fscache_n_store_radix_deletes;
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atomic_t fscache_n_store_pages_over_limit;
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atomic_t fscache_n_store_vmscan_not_storing;
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atomic_t fscache_n_store_vmscan_gone;
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atomic_t fscache_n_store_vmscan_busy;
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atomic_t fscache_n_store_vmscan_cancelled;
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atomic_t fscache_n_store_vmscan_wait;
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atomic_t fscache_n_marks;
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atomic_t fscache_n_uncaches;
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atomic_t fscache_n_acquires;
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atomic_t fscache_n_acquires_null;
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atomic_t fscache_n_acquires_no_cache;
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atomic_t fscache_n_acquires_ok;
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atomic_t fscache_n_acquires_nobufs;
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atomic_t fscache_n_acquires_oom;
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atomic_t fscache_n_invalidates;
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atomic_t fscache_n_invalidates_run;
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atomic_t fscache_n_updates;
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atomic_t fscache_n_updates_null;
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atomic_t fscache_n_updates_run;
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atomic_t fscache_n_relinquishes;
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atomic_t fscache_n_relinquishes_null;
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atomic_t fscache_n_relinquishes_waitcrt;
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atomic_t fscache_n_relinquishes_retire;
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atomic_t fscache_n_cookie_index;
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atomic_t fscache_n_cookie_data;
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atomic_t fscache_n_cookie_special;
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atomic_t fscache_n_object_alloc;
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atomic_t fscache_n_object_no_alloc;
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atomic_t fscache_n_object_lookups;
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atomic_t fscache_n_object_lookups_negative;
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atomic_t fscache_n_object_lookups_positive;
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atomic_t fscache_n_object_lookups_timed_out;
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atomic_t fscache_n_object_created;
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atomic_t fscache_n_object_avail;
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atomic_t fscache_n_object_dead;
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atomic_t fscache_n_checkaux_none;
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atomic_t fscache_n_checkaux_okay;
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atomic_t fscache_n_checkaux_update;
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atomic_t fscache_n_checkaux_obsolete;
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atomic_t fscache_n_cop_alloc_object;
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atomic_t fscache_n_cop_lookup_object;
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atomic_t fscache_n_cop_lookup_complete;
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atomic_t fscache_n_cop_grab_object;
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atomic_t fscache_n_cop_invalidate_object;
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atomic_t fscache_n_cop_update_object;
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atomic_t fscache_n_cop_drop_object;
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atomic_t fscache_n_cop_put_object;
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atomic_t fscache_n_cop_sync_cache;
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atomic_t fscache_n_cop_attr_changed;
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atomic_t fscache_n_cop_read_or_alloc_page;
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atomic_t fscache_n_cop_read_or_alloc_pages;
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atomic_t fscache_n_cop_allocate_page;
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atomic_t fscache_n_cop_allocate_pages;
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atomic_t fscache_n_cop_write_page;
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atomic_t fscache_n_cop_uncache_page;
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atomic_t fscache_n_cop_dissociate_pages;
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atomic_t fscache_n_cache_no_space_reject;
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atomic_t fscache_n_cache_stale_objects;
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atomic_t fscache_n_cache_retired_objects;
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atomic_t fscache_n_cache_culled_objects;
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/*
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* display the general statistics
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*/
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int fscache_stats_show(struct seq_file *m, void *v)
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{
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seq_puts(m, "FS-Cache statistics\n");
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seq_printf(m, "Cookies: idx=%u dat=%u spc=%u\n",
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atomic_read(&fscache_n_cookie_index),
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atomic_read(&fscache_n_cookie_data),
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atomic_read(&fscache_n_cookie_special));
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seq_printf(m, "Objects: alc=%u nal=%u avl=%u ded=%u\n",
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atomic_read(&fscache_n_object_alloc),
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atomic_read(&fscache_n_object_no_alloc),
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atomic_read(&fscache_n_object_avail),
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atomic_read(&fscache_n_object_dead));
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seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n",
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atomic_read(&fscache_n_checkaux_none),
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atomic_read(&fscache_n_checkaux_okay),
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atomic_read(&fscache_n_checkaux_update),
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atomic_read(&fscache_n_checkaux_obsolete));
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seq_printf(m, "Pages : mrk=%u unc=%u\n",
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atomic_read(&fscache_n_marks),
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atomic_read(&fscache_n_uncaches));
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seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u"
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" oom=%u\n",
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atomic_read(&fscache_n_acquires),
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atomic_read(&fscache_n_acquires_null),
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atomic_read(&fscache_n_acquires_no_cache),
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atomic_read(&fscache_n_acquires_ok),
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atomic_read(&fscache_n_acquires_nobufs),
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atomic_read(&fscache_n_acquires_oom));
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seq_printf(m, "Lookups: n=%u neg=%u pos=%u crt=%u tmo=%u\n",
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atomic_read(&fscache_n_object_lookups),
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atomic_read(&fscache_n_object_lookups_negative),
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atomic_read(&fscache_n_object_lookups_positive),
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atomic_read(&fscache_n_object_created),
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atomic_read(&fscache_n_object_lookups_timed_out));
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seq_printf(m, "Invals : n=%u run=%u\n",
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atomic_read(&fscache_n_invalidates),
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atomic_read(&fscache_n_invalidates_run));
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seq_printf(m, "Updates: n=%u nul=%u run=%u\n",
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atomic_read(&fscache_n_updates),
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atomic_read(&fscache_n_updates_null),
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atomic_read(&fscache_n_updates_run));
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seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n",
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atomic_read(&fscache_n_relinquishes),
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atomic_read(&fscache_n_relinquishes_null),
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atomic_read(&fscache_n_relinquishes_waitcrt),
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atomic_read(&fscache_n_relinquishes_retire));
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seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n",
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atomic_read(&fscache_n_attr_changed),
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atomic_read(&fscache_n_attr_changed_ok),
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atomic_read(&fscache_n_attr_changed_nobufs),
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atomic_read(&fscache_n_attr_changed_nomem),
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atomic_read(&fscache_n_attr_changed_calls));
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seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n",
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atomic_read(&fscache_n_allocs),
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atomic_read(&fscache_n_allocs_ok),
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atomic_read(&fscache_n_allocs_wait),
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atomic_read(&fscache_n_allocs_nobufs),
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atomic_read(&fscache_n_allocs_intr));
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seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n",
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atomic_read(&fscache_n_alloc_ops),
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atomic_read(&fscache_n_alloc_op_waits),
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atomic_read(&fscache_n_allocs_object_dead));
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seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u"
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" int=%u oom=%u\n",
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atomic_read(&fscache_n_retrievals),
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atomic_read(&fscache_n_retrievals_ok),
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atomic_read(&fscache_n_retrievals_wait),
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atomic_read(&fscache_n_retrievals_nodata),
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atomic_read(&fscache_n_retrievals_nobufs),
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atomic_read(&fscache_n_retrievals_intr),
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atomic_read(&fscache_n_retrievals_nomem));
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seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n",
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atomic_read(&fscache_n_retrieval_ops),
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atomic_read(&fscache_n_retrieval_op_waits),
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atomic_read(&fscache_n_retrievals_object_dead));
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seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n",
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atomic_read(&fscache_n_stores),
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atomic_read(&fscache_n_stores_ok),
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atomic_read(&fscache_n_stores_again),
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atomic_read(&fscache_n_stores_nobufs),
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atomic_read(&fscache_n_stores_oom));
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seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n",
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atomic_read(&fscache_n_store_ops),
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atomic_read(&fscache_n_store_calls),
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atomic_read(&fscache_n_store_pages),
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atomic_read(&fscache_n_store_radix_deletes),
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atomic_read(&fscache_n_store_pages_over_limit));
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seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u wt=%u\n",
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atomic_read(&fscache_n_store_vmscan_not_storing),
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atomic_read(&fscache_n_store_vmscan_gone),
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atomic_read(&fscache_n_store_vmscan_busy),
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atomic_read(&fscache_n_store_vmscan_cancelled),
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atomic_read(&fscache_n_store_vmscan_wait));
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seq_printf(m, "Ops : pend=%u run=%u enq=%u can=%u rej=%u\n",
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atomic_read(&fscache_n_op_pend),
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atomic_read(&fscache_n_op_run),
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atomic_read(&fscache_n_op_enqueue),
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atomic_read(&fscache_n_op_cancelled),
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atomic_read(&fscache_n_op_rejected));
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seq_printf(m, "Ops : ini=%u dfr=%u rel=%u gc=%u\n",
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atomic_read(&fscache_n_op_initialised),
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atomic_read(&fscache_n_op_deferred_release),
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atomic_read(&fscache_n_op_release),
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atomic_read(&fscache_n_op_gc));
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seq_printf(m, "CacheOp: alo=%d luo=%d luc=%d gro=%d\n",
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atomic_read(&fscache_n_cop_alloc_object),
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atomic_read(&fscache_n_cop_lookup_object),
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atomic_read(&fscache_n_cop_lookup_complete),
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atomic_read(&fscache_n_cop_grab_object));
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seq_printf(m, "CacheOp: inv=%d upo=%d dro=%d pto=%d atc=%d syn=%d\n",
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atomic_read(&fscache_n_cop_invalidate_object),
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atomic_read(&fscache_n_cop_update_object),
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atomic_read(&fscache_n_cop_drop_object),
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atomic_read(&fscache_n_cop_put_object),
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atomic_read(&fscache_n_cop_attr_changed),
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atomic_read(&fscache_n_cop_sync_cache));
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seq_printf(m, "CacheOp: rap=%d ras=%d alp=%d als=%d wrp=%d ucp=%d dsp=%d\n",
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atomic_read(&fscache_n_cop_read_or_alloc_page),
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atomic_read(&fscache_n_cop_read_or_alloc_pages),
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atomic_read(&fscache_n_cop_allocate_page),
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atomic_read(&fscache_n_cop_allocate_pages),
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atomic_read(&fscache_n_cop_write_page),
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atomic_read(&fscache_n_cop_uncache_page),
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atomic_read(&fscache_n_cop_dissociate_pages));
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seq_printf(m, "CacheEv: nsp=%d stl=%d rtr=%d cul=%d\n",
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atomic_read(&fscache_n_cache_no_space_reject),
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atomic_read(&fscache_n_cache_stale_objects),
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atomic_read(&fscache_n_cache_retired_objects),
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atomic_read(&fscache_n_cache_culled_objects));
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return 0;
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}
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