[RFC,11/76] fscache: Remove obsolete stats

Message ID	160588469905.3465195.11662839857493623334.stgit@warthog.procyon.org.uk (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-cifs-owner@kernel.org> Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Subject: [RFC PATCH 11/76] fscache: Remove obsolete stats From: David Howells <dhowells@redhat.com> To: Trond Myklebust <trondmy@hammerspace.com>, Anna Schumaker <anna.schumaker@netapp.com>, Steve French <sfrench@samba.org>, Dominique Martinet <asmadeus@codewreck.org> Cc: dhowells@redhat.com, Jeff Layton <jlayton@redhat.com>, Matthew Wilcox <willy@infradead.org>, Alexander Viro <viro@zeniv.linux.org.uk>, linux-cachefs@redhat.com, linux-afs@lists.infradead.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, ceph-devel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Date: Fri, 20 Nov 2020 15:04:59 +0000 Message-ID: <160588469905.3465195.11662839857493623334.stgit@warthog.procyon.org.uk> In-Reply-To: <160588455242.3465195.3214733858273019178.stgit@warthog.procyon.org.uk> References: <160588455242.3465195.3214733858273019178.stgit@warthog.procyon.org.uk> User-Agent: StGit/0.23 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk
Series	fscache: Modernisation \| expand [RFC,00/76] fscache: Modernisation [RFC,01/76] nfs, cifs, ceph, 9p: Disable use of fscache prior to its rewrite [RFC,02/76] afs: Disable use of the fscache I/O routines [RFC,03/76] fscache: Add a cookie debug ID and use that in traces [RFC,04/76] fscache: Procfile to display cookies [RFC,05/76] fscache: Remove the old I/O API [RFC,06/76] fscache: Remove the netfs data from the cookie [RFC,07/76] fscache: Remove struct fscache_cookie_def [RFC,08/76] fscache: Remove store_limit* from struct fscache_object [RFC,09/76] fscache: Remove fscache_check_consistency() [RFC,10/76] fscache: Remove fscache_attr_changed() [RFC,11/76] fscache: Remove obsolete stats [RFC,12/76] fscache: Remove old I/O tracepoints [RFC,13/76] fscache: Temporarily disable fscache_invalidate() [RFC,14/76] fscache: Remove the I/O operation manager [RFC,15/76] fscache: Change %p in format strings to something else [RFC,16/76] cachefiles: Change %p in format strings to something else [RFC,17/76] iov_iter: Add ITER_XARRAY [RFC,18/76] vm: Add wait/unlock functions for PG_fscache [RFC,19/76] mm: Implement readahead_control pageset expansion [RFC,20/76] mm: Stop generic_file_buffered_read() from grabbing a superfluous page [RFC,21/76] vfs: Export rw_verify_area() for use by cachefiles [RFC,22/76] vfs: Provide S_CACHE_FILE inode flag [RFC,23/76] cachefiles: Remove tree of active files and use S_CACHE_FILE inode flag [RFC,24/76] fscache: Provide a simple thread pool for running ops asynchronously [RFC,26/76] fscache: Rewrite the I/O API based on iov_iter [RFC,27/76] fscache: Keep track of size of a file last set independently on the server [RFC,28/76] fscache, cachefiles: Fix disabled histogram warnings [RFC,29/76] fscache: Recast assertion in terms of cookie not being an index [RFC,30/76] vfs, fscache: Force ->write_inode() to occur if cookie pinned for writeback [RFC,31/76] fscache: Allow ->put_super() to be used to wait for cache operations [RFC,32/76] netfs: Make a netfs helper module [RFC,33/76] netfs: Provide readahead and readpage netfs helpers [RFC,34/76] netfs: Use the cache [RFC,35/76] fscache: read-helper: Add tracepoints [RFC,36/76] cachefiles: Remove some redundant checks on unsigned values [RFC,37/76] cachefiles: trace: Log coherency checks [RFC,38/76] cachefiles: Split cachefiles_drop_object() up a bit [RFC,39/76] cachefiles: Implement new fscache I/O backend API [RFC,40/76] cachefiles: Merge object->backer into object->dentry [RFC,41/76] cachefiles: Implement a content-present indicator and bitmap [RFC,42/76] cachefiles: Shape requests from the fscache read helper [RFC,43/76] cachefiles: Round the cachefile size up to DIO block size [RFC,44/76] cachefiles: Implement read and write parts of new I/O API [RFC,45/76] cachefiles: Add I/O tracepoints [RFC,46/76] fscache: Display cache-specific data in /proc/fs/fscache/objects [RFC,47/76] fscache: Remove more obsolete stats [RFC,48/76] fscache: Always create /proc/fs/fscache/stats if configured [RFC,49/76] netfs: Stats [RFC,50/76] fscache: New stats [RFC,51/76] fscache, cachefiles: Rewrite invalidation [RFC,52/76] fscache: disable cookie when doing an invalidation for DIO write [RFC,53/76] fscache: Implement "will_modify" parameter on fscache_use_cookie() [RFC,54/76] fscache: Provide resize operation [RFC,55/76] fscache: Remove the update operation [RFC,56/76] afs: Pass page into dirty region helpers to provide THP size [RFC,57/76] afs: Print the operation debug_id when logging an unexpected data version [RFC,58/76] afs: Move key to afs_read struct [RFC,59/76] afs: Don't truncate iter during data fetch [RFC,60/76] afs: Log remote unmarshalling errors [RFC,61/76] afs: Set up the iov_iter before calling afs_extract_data() [RFC,62/76] afs: Use ITER_XARRAY for writing [RFC,63/76] afs: Wait on PG_fscache before modifying/releasing a page [RFC,64/76] afs: Extract writeback extension into its own function [RFC,65/76] afs: Prepare for use of THPs [RFC,66/76] afs: Use the fs operation ops to handle FetchData completion [RFC,67/76] afs: Use new fscache read helper API [RFC,68/76] netfs: Add write_begin helper [RFC,69/76] fscache: Add support for writing to the cache [RFC,70/76] afs: Use the fscache_write_begin() helper [RFC,71/76] afs: Copy local writes to the cache when writing to the server [RFC,72/76] afs: Invoke fscache_resize_cookie() when handling ATTR_SIZE for setattr [RFC,73/76] afs: Add O_DIRECT read support [RFC,74/76] afs: Skip truncation on the server of data we haven't written yet [RFC,75/76] afs: Make afs_write_begin() return the THP subpage [RFC,76/76] afs: Fix speculative status fetch going out of order wrt to modifications

diff --git a/fs/fscache/internal.h b/fs/fscache/internal.h index 20cbd1288b5a..360137fd19a7 100644 --- a/fs/fscache/internal.h +++ b/fs/fscache/internal.h @@ -166,9 +166,6 @@ extern void fscache_proc_cleanup(void); * stats.c */ #ifdef CONFIG_FSCACHE_STATS -extern atomic_t fscache_n_ops_processed[FSCACHE_MAX_THREADS]; -extern atomic_t fscache_n_objs_processed[FSCACHE_MAX_THREADS]; - extern atomic_t fscache_n_op_pend; extern atomic_t fscache_n_op_run; extern atomic_t fscache_n_op_enqueue; @@ -179,52 +176,6 @@ extern atomic_t fscache_n_op_gc; extern atomic_t fscache_n_op_cancelled; extern atomic_t fscache_n_op_rejected; -extern atomic_t fscache_n_attr_changed; -extern atomic_t fscache_n_attr_changed_ok; -extern atomic_t fscache_n_attr_changed_nobufs; -extern atomic_t fscache_n_attr_changed_nomem; -extern atomic_t fscache_n_attr_changed_calls; - -extern atomic_t fscache_n_allocs; -extern atomic_t fscache_n_allocs_ok; -extern atomic_t fscache_n_allocs_wait; -extern atomic_t fscache_n_allocs_nobufs; -extern atomic_t fscache_n_allocs_intr; -extern atomic_t fscache_n_allocs_object_dead; -extern atomic_t fscache_n_alloc_ops; -extern atomic_t fscache_n_alloc_op_waits; - -extern atomic_t fscache_n_retrievals; -extern atomic_t fscache_n_retrievals_ok; -extern atomic_t fscache_n_retrievals_wait; -extern atomic_t fscache_n_retrievals_nodata; -extern atomic_t fscache_n_retrievals_nobufs; -extern atomic_t fscache_n_retrievals_intr; -extern atomic_t fscache_n_retrievals_nomem; -extern atomic_t fscache_n_retrievals_object_dead; -extern atomic_t fscache_n_retrieval_ops; -extern atomic_t fscache_n_retrieval_op_waits; - -extern atomic_t fscache_n_stores; -extern atomic_t fscache_n_stores_ok; -extern atomic_t fscache_n_stores_again; -extern atomic_t fscache_n_stores_nobufs; -extern atomic_t fscache_n_stores_oom; -extern atomic_t fscache_n_store_ops; -extern atomic_t fscache_n_store_calls; -extern atomic_t fscache_n_store_pages; -extern atomic_t fscache_n_store_radix_deletes; -extern atomic_t fscache_n_store_pages_over_limit; - -extern atomic_t fscache_n_store_vmscan_not_storing; -extern atomic_t fscache_n_store_vmscan_gone; -extern atomic_t fscache_n_store_vmscan_busy; -extern atomic_t fscache_n_store_vmscan_cancelled; -extern atomic_t fscache_n_store_vmscan_wait; - -extern atomic_t fscache_n_marks; -extern atomic_t fscache_n_uncaches; - extern atomic_t fscache_n_acquires; extern atomic_t fscache_n_acquires_null; extern atomic_t fscache_n_acquires_no_cache; @@ -241,7 +192,6 @@ extern atomic_t fscache_n_updates_run; extern atomic_t fscache_n_relinquishes; extern atomic_t fscache_n_relinquishes_null; -extern atomic_t fscache_n_relinquishes_waitcrt; extern atomic_t fscache_n_relinquishes_retire; extern atomic_t fscache_n_cookie_index; @@ -258,11 +208,6 @@ extern atomic_t fscache_n_object_created; extern atomic_t fscache_n_object_avail; extern atomic_t fscache_n_object_dead; -extern atomic_t fscache_n_checkaux_none; -extern atomic_t fscache_n_checkaux_okay; -extern atomic_t fscache_n_checkaux_update; -extern atomic_t fscache_n_checkaux_obsolete; - extern atomic_t fscache_n_cop_alloc_object; extern atomic_t fscache_n_cop_lookup_object; extern atomic_t fscache_n_cop_lookup_complete; @@ -273,12 +218,6 @@ extern atomic_t fscache_n_cop_drop_object; extern atomic_t fscache_n_cop_put_object; extern atomic_t fscache_n_cop_sync_cache; extern atomic_t fscache_n_cop_attr_changed; -extern atomic_t fscache_n_cop_read_or_alloc_page; -extern atomic_t fscache_n_cop_read_or_alloc_pages; -extern atomic_t fscache_n_cop_allocate_page; -extern atomic_t fscache_n_cop_allocate_pages; -extern atomic_t fscache_n_cop_write_page; -extern atomic_t fscache_n_cop_uncache_page; extern atomic_t fscache_n_cache_no_space_reject; extern atomic_t fscache_n_cache_stale_objects; diff --git a/fs/fscache/stats.c b/fs/fscache/stats.c index 281022871e70..5b1cec456199 100644 --- a/fs/fscache/stats.c +++ b/fs/fscache/stats.c @@ -24,52 +24,6 @@ atomic_t fscache_n_op_gc; atomic_t fscache_n_op_cancelled; atomic_t fscache_n_op_rejected; -atomic_t fscache_n_attr_changed; -atomic_t fscache_n_attr_changed_ok; -atomic_t fscache_n_attr_changed_nobufs; -atomic_t fscache_n_attr_changed_nomem; -atomic_t fscache_n_attr_changed_calls; - -atomic_t fscache_n_allocs; -atomic_t fscache_n_allocs_ok; -atomic_t fscache_n_allocs_wait; -atomic_t fscache_n_allocs_nobufs; -atomic_t fscache_n_allocs_intr; -atomic_t fscache_n_allocs_object_dead; -atomic_t fscache_n_alloc_ops; -atomic_t fscache_n_alloc_op_waits; - -atomic_t fscache_n_retrievals; -atomic_t fscache_n_retrievals_ok; -atomic_t fscache_n_retrievals_wait; -atomic_t fscache_n_retrievals_nodata; -atomic_t fscache_n_retrievals_nobufs; -atomic_t fscache_n_retrievals_intr; -atomic_t fscache_n_retrievals_nomem; -atomic_t fscache_n_retrievals_object_dead; -atomic_t fscache_n_retrieval_ops; -atomic_t fscache_n_retrieval_op_waits; - -atomic_t fscache_n_stores; -atomic_t fscache_n_stores_ok; -atomic_t fscache_n_stores_again; -atomic_t fscache_n_stores_nobufs; -atomic_t fscache_n_stores_oom; -atomic_t fscache_n_store_ops; -atomic_t fscache_n_store_calls; -atomic_t fscache_n_store_pages; -atomic_t fscache_n_store_radix_deletes; -atomic_t fscache_n_store_pages_over_limit; - -atomic_t fscache_n_store_vmscan_not_storing; -atomic_t fscache_n_store_vmscan_gone; -atomic_t fscache_n_store_vmscan_busy; -atomic_t fscache_n_store_vmscan_cancelled; -atomic_t fscache_n_store_vmscan_wait; - -atomic_t fscache_n_marks; -atomic_t fscache_n_uncaches; - atomic_t fscache_n_acquires; atomic_t fscache_n_acquires_null; atomic_t fscache_n_acquires_no_cache; @@ -86,7 +40,6 @@ atomic_t fscache_n_updates_run; atomic_t fscache_n_relinquishes; atomic_t fscache_n_relinquishes_null; -atomic_t fscache_n_relinquishes_waitcrt; atomic_t fscache_n_relinquishes_retire; atomic_t fscache_n_cookie_index; @@ -103,11 +56,6 @@ atomic_t fscache_n_object_created; atomic_t fscache_n_object_avail; atomic_t fscache_n_object_dead; -atomic_t fscache_n_checkaux_none; -atomic_t fscache_n_checkaux_okay; -atomic_t fscache_n_checkaux_update; -atomic_t fscache_n_checkaux_obsolete; - atomic_t fscache_n_cop_alloc_object; atomic_t fscache_n_cop_lookup_object; atomic_t fscache_n_cop_lookup_complete; @@ -118,12 +66,6 @@ atomic_t fscache_n_cop_drop_object; atomic_t fscache_n_cop_put_object; atomic_t fscache_n_cop_sync_cache; atomic_t fscache_n_cop_attr_changed; -atomic_t fscache_n_cop_read_or_alloc_page; -atomic_t fscache_n_cop_read_or_alloc_pages; -atomic_t fscache_n_cop_allocate_page; -atomic_t fscache_n_cop_allocate_pages; -atomic_t fscache_n_cop_write_page; -atomic_t fscache_n_cop_uncache_page; atomic_t fscache_n_cache_no_space_reject; atomic_t fscache_n_cache_stale_objects; @@ -147,15 +89,6 @@ int fscache_stats_show(struct seq_file *m, void *v) atomic_read(&fscache_n_object_no_alloc), atomic_read(&fscache_n_object_avail), atomic_read(&fscache_n_object_dead)); - seq_printf(m, "ChkAux : non=%u ok=%u upd=%u obs=%u\n", - atomic_read(&fscache_n_checkaux_none), - atomic_read(&fscache_n_checkaux_okay), - atomic_read(&fscache_n_checkaux_update), - atomic_read(&fscache_n_checkaux_obsolete)); - - seq_printf(m, "Pages : mrk=%u unc=%u\n", - atomic_read(&fscache_n_marks), - atomic_read(&fscache_n_uncaches)); seq_printf(m, "Acquire: n=%u nul=%u noc=%u ok=%u nbf=%u" " oom=%u\n", @@ -182,64 +115,11 @@ int fscache_stats_show(struct seq_file *m, void *v) atomic_read(&fscache_n_updates_null), atomic_read(&fscache_n_updates_run)); - seq_printf(m, "Relinqs: n=%u nul=%u wcr=%u rtr=%u\n", + seq_printf(m, "Relinqs: n=%u nul=%u rtr=%u\n", atomic_read(&fscache_n_relinquishes), atomic_read(&fscache_n_relinquishes_null), - atomic_read(&fscache_n_relinquishes_waitcrt), atomic_read(&fscache_n_relinquishes_retire)); - seq_printf(m, "AttrChg: n=%u ok=%u nbf=%u oom=%u run=%u\n", - atomic_read(&fscache_n_attr_changed), - atomic_read(&fscache_n_attr_changed_ok), - atomic_read(&fscache_n_attr_changed_nobufs), - atomic_read(&fscache_n_attr_changed_nomem), - atomic_read(&fscache_n_attr_changed_calls)); - - seq_printf(m, "Allocs : n=%u ok=%u wt=%u nbf=%u int=%u\n", - atomic_read(&fscache_n_allocs), - atomic_read(&fscache_n_allocs_ok), - atomic_read(&fscache_n_allocs_wait), - atomic_read(&fscache_n_allocs_nobufs), - atomic_read(&fscache_n_allocs_intr)); - seq_printf(m, "Allocs : ops=%u owt=%u abt=%u\n", - atomic_read(&fscache_n_alloc_ops), - atomic_read(&fscache_n_alloc_op_waits), - atomic_read(&fscache_n_allocs_object_dead)); - - seq_printf(m, "Retrvls: n=%u ok=%u wt=%u nod=%u nbf=%u" - " int=%u oom=%u\n", - atomic_read(&fscache_n_retrievals), - atomic_read(&fscache_n_retrievals_ok), - atomic_read(&fscache_n_retrievals_wait), - atomic_read(&fscache_n_retrievals_nodata), - atomic_read(&fscache_n_retrievals_nobufs), - atomic_read(&fscache_n_retrievals_intr), - atomic_read(&fscache_n_retrievals_nomem)); - seq_printf(m, "Retrvls: ops=%u owt=%u abt=%u\n", - atomic_read(&fscache_n_retrieval_ops), - atomic_read(&fscache_n_retrieval_op_waits), - atomic_read(&fscache_n_retrievals_object_dead)); - - seq_printf(m, "Stores : n=%u ok=%u agn=%u nbf=%u oom=%u\n", - atomic_read(&fscache_n_stores), - atomic_read(&fscache_n_stores_ok), - atomic_read(&fscache_n_stores_again), - atomic_read(&fscache_n_stores_nobufs), - atomic_read(&fscache_n_stores_oom)); - seq_printf(m, "Stores : ops=%u run=%u pgs=%u rxd=%u olm=%u\n", - atomic_read(&fscache_n_store_ops), - atomic_read(&fscache_n_store_calls), - atomic_read(&fscache_n_store_pages), - atomic_read(&fscache_n_store_radix_deletes), - atomic_read(&fscache_n_store_pages_over_limit)); - - seq_printf(m, "VmScan : nos=%u gon=%u bsy=%u can=%u wt=%u\n", - atomic_read(&fscache_n_store_vmscan_not_storing), - atomic_read(&fscache_n_store_vmscan_gone), - atomic_read(&fscache_n_store_vmscan_busy), - atomic_read(&fscache_n_store_vmscan_cancelled), - atomic_read(&fscache_n_store_vmscan_wait)); - seq_printf(m, "Ops : pend=%u run=%u enq=%u can=%u rej=%u\n", atomic_read(&fscache_n_op_pend), atomic_read(&fscache_n_op_run), @@ -264,13 +144,6 @@ int fscache_stats_show(struct seq_file *m, void *v) atomic_read(&fscache_n_cop_put_object), atomic_read(&fscache_n_cop_attr_changed), atomic_read(&fscache_n_cop_sync_cache)); - seq_printf(m, "CacheOp: rap=%d ras=%d alp=%d als=%d wrp=%d ucp=%d\n", - atomic_read(&fscache_n_cop_read_or_alloc_page), - atomic_read(&fscache_n_cop_read_or_alloc_pages), - atomic_read(&fscache_n_cop_allocate_page), - atomic_read(&fscache_n_cop_allocate_pages), - atomic_read(&fscache_n_cop_write_page), - atomic_read(&fscache_n_cop_uncache_page)); seq_printf(m, "CacheEv: nsp=%d stl=%d rtr=%d cul=%d\n", atomic_read(&fscache_n_cache_no_space_reject), atomic_read(&fscache_n_cache_stale_objects),

[RFC,11/76] fscache: Remove obsolete stats

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