From 289af54cc67ace285b6d4335a54324562894c4e2 Mon Sep 17 00:00:00 2001 From: David Howells Date: Tue, 3 Nov 2020 11:32:41 +0000 Subject: netfs: Gather stats Gather statistics from the netfs interface that can be exported through a seqfile. This is intended to be called by a later patch when viewing /proc/fs/fscache/stats. Signed-off-by: David Howells Reviewed-and-tested-by: Jeff Layton Tested-by: Dave Wysochanski Tested-By: Marc Dionne cc: Matthew Wilcox cc: linux-mm@kvack.org cc: linux-cachefs@redhat.com cc: linux-afs@lists.infradead.org cc: linux-nfs@vger.kernel.org cc: linux-cifs@vger.kernel.org cc: ceph-devel@vger.kernel.org cc: v9fs-developer@lists.sourceforge.net cc: linux-fsdevel@vger.kernel.org Link: https://lore.kernel.org/r/161118139247.1232039.10556850937548511068.stgit@warthog.procyon.org.uk/ # rfc Link: https://lore.kernel.org/r/161161034669.2537118.2761232524997091480.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/161340397101.1303470.17581910581108378458.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/161539539959.286939.6794352576462965914.stgit@warthog.procyon.org.uk/ # v4 Link: https://lore.kernel.org/r/161653797700.2770958.5801990354413178228.stgit@warthog.procyon.org.uk/ # v5 Link: https://lore.kernel.org/r/161789079281.6155.17141344853277186500.stgit@warthog.procyon.org.uk/ # v6 --- fs/netfs/internal.h | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) (limited to 'fs/netfs/internal.h') diff --git a/fs/netfs/internal.h b/fs/netfs/internal.h index ee665c0e7dc8..98b6f4516da1 100644 --- a/fs/netfs/internal.h +++ b/fs/netfs/internal.h @@ -16,8 +16,42 @@ */ extern unsigned int netfs_debug; +/* + * stats.c + */ +#ifdef CONFIG_NETFS_STATS +extern atomic_t netfs_n_rh_readahead; +extern atomic_t netfs_n_rh_readpage; +extern atomic_t netfs_n_rh_rreq; +extern atomic_t netfs_n_rh_sreq; +extern atomic_t netfs_n_rh_download; +extern atomic_t netfs_n_rh_download_done; +extern atomic_t netfs_n_rh_download_failed; +extern atomic_t netfs_n_rh_download_instead; +extern atomic_t netfs_n_rh_read; +extern atomic_t netfs_n_rh_read_done; +extern atomic_t netfs_n_rh_read_failed; +extern atomic_t netfs_n_rh_zero; +extern atomic_t netfs_n_rh_short_read; +extern atomic_t netfs_n_rh_write; +extern atomic_t netfs_n_rh_write_done; +extern atomic_t netfs_n_rh_write_failed; + + +static inline void netfs_stat(atomic_t *stat) +{ + atomic_inc(stat); +} + +static inline void netfs_stat_d(atomic_t *stat) +{ + atomic_dec(stat); +} + +#else #define netfs_stat(x) do {} while(0) #define netfs_stat_d(x) do {} while(0) +#endif /*****************************************************************************/ /* -- cgit v1.2.3