From: Dave Wysochanski <dwysocha@redhat.com>
To: Anna Schumaker <anna.schumaker@netapp.com>,
Trond Myklebust <trond.myklebust@hammerspace.com>,
David Howells <dhowells@redhat.com>
Cc: linux-nfs@vger.kernel.org, linux-cachefs@redhat.com,
Benjamin Maynard <benmaynard@google.com>,
Daire Byrne <daire.byrne@gmail.com>
Subject: [PATCH v8 4/5] NFS: Remove all NFSIOS_FSCACHE counters due to conversion to netfs API
Date: Thu, 22 Sep 2022 09:58:20 -0400 [thread overview]
Message-ID: <20220922135821.1771966-5-dwysocha@redhat.com> (raw)
In-Reply-To: <20220922135821.1771966-1-dwysocha@redhat.com>
The old NFSIOS_FSCACHE counters are no longer accurate or useful with
the conversion to the new netfs API. The new API does not have a page
based interface, and so the counters in nfs_stat_fscachecounters are
no longer obtainable. The new netfs the API has extensive statistics
inside /proc/fs/fscache/stats so we no longer need NFS specific fscache
stats.
Note this also removes the 'fsc:' line from /proc/self/mountstats so
it will be a user-visible change.
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
---
fs/nfs/iostat.h | 17 -----------------
fs/nfs/super.c | 11 -----------
include/linux/nfs_iostat.h | 12 ------------
3 files changed, 40 deletions(-)
diff --git a/fs/nfs/iostat.h b/fs/nfs/iostat.h
index 2ddaab1ac653..5aa776b5a3e7 100644
--- a/fs/nfs/iostat.h
+++ b/fs/nfs/iostat.h
@@ -17,9 +17,6 @@
struct nfs_iostats {
unsigned long long bytes[__NFSIOS_BYTESMAX];
-#ifdef CONFIG_NFS_FSCACHE
- unsigned long long fscache[__NFSIOS_FSCACHEMAX];
-#endif
unsigned long events[__NFSIOS_COUNTSMAX];
} ____cacheline_aligned;
@@ -49,20 +46,6 @@ static inline void nfs_add_stats(const struct inode *inode,
nfs_add_server_stats(NFS_SERVER(inode), stat, addend);
}
-#ifdef CONFIG_NFS_FSCACHE
-static inline void nfs_add_fscache_stats(struct inode *inode,
- enum nfs_stat_fscachecounters stat,
- long addend)
-{
- this_cpu_add(NFS_SERVER(inode)->io_stats->fscache[stat], addend);
-}
-static inline void nfs_inc_fscache_stats(struct inode *inode,
- enum nfs_stat_fscachecounters stat)
-{
- this_cpu_inc(NFS_SERVER(inode)->io_stats->fscache[stat]);
-}
-#endif
-
static inline struct nfs_iostats __percpu *nfs_alloc_iostats(void)
{
return alloc_percpu(struct nfs_iostats);
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index ee66ffdb985e..302148258ff1 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -692,10 +692,6 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root)
totals.events[i] += stats->events[i];
for (i = 0; i < __NFSIOS_BYTESMAX; i++)
totals.bytes[i] += stats->bytes[i];
-#ifdef CONFIG_NFS_FSCACHE
- for (i = 0; i < __NFSIOS_FSCACHEMAX; i++)
- totals.fscache[i] += stats->fscache[i];
-#endif
preempt_enable();
}
@@ -706,13 +702,6 @@ int nfs_show_stats(struct seq_file *m, struct dentry *root)
seq_puts(m, "\n\tbytes:\t");
for (i = 0; i < __NFSIOS_BYTESMAX; i++)
seq_printf(m, "%Lu ", totals.bytes[i]);
-#ifdef CONFIG_NFS_FSCACHE
- if (nfss->options & NFS_OPTION_FSCACHE) {
- seq_puts(m, "\n\tfsc:\t");
- for (i = 0; i < __NFSIOS_FSCACHEMAX; i++)
- seq_printf(m, "%Lu ", totals.fscache[i]);
- }
-#endif
seq_putc(m, '\n');
rpc_clnt_show_stats(m, nfss->client);
diff --git a/include/linux/nfs_iostat.h b/include/linux/nfs_iostat.h
index 027874c36c88..8d946089d151 100644
--- a/include/linux/nfs_iostat.h
+++ b/include/linux/nfs_iostat.h
@@ -119,16 +119,4 @@ enum nfs_stat_eventcounters {
__NFSIOS_COUNTSMAX,
};
-/*
- * NFS local caching servicing counters
- */
-enum nfs_stat_fscachecounters {
- NFSIOS_FSCACHE_PAGES_READ_OK,
- NFSIOS_FSCACHE_PAGES_READ_FAIL,
- NFSIOS_FSCACHE_PAGES_WRITTEN_OK,
- NFSIOS_FSCACHE_PAGES_WRITTEN_FAIL,
- NFSIOS_FSCACHE_PAGES_UNCACHED,
- __NFSIOS_FSCACHEMAX,
-};
-
#endif /* _LINUX_NFS_IOSTAT */
--
2.31.1
next prev parent reply other threads:[~2022-09-22 13:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-22 13:58 [PATCH v8 0/3] Convert NFS with fscache to the netfs API Dave Wysochanski
2022-09-22 13:58 ` [PATCH v8 1/5] NFS: Rename readpage_async_filler to nfs_pageio_add_page Dave Wysochanski
2022-09-22 13:58 ` [PATCH v8 2/5] NFS: Configure support for netfs when NFS fscache is configured Dave Wysochanski
2022-09-22 13:58 ` [PATCH v8 3/5] NFS: Convert buffered read paths to use netfs when fscache is enabled Dave Wysochanski
2022-09-28 10:07 ` Jeff Layton
2022-09-22 13:58 ` Dave Wysochanski [this message]
2022-09-22 13:58 ` [PATCH v8 5/5] NFS: Remove fscache specific trace points and NFS_INO_FSCACHE bit Dave Wysochanski
2022-09-28 10:10 ` [PATCH v8 0/3] Convert NFS with fscache to the netfs API Jeff Layton
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