diff options
Diffstat (limited to 'fs/netfs/stats.c')
| -rw-r--r-- | fs/netfs/stats.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/fs/netfs/stats.c b/fs/netfs/stats.c new file mode 100644 index 000000000000..df6ff5718f25 --- /dev/null +++ b/fs/netfs/stats.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Netfs support statistics + * + * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ + +#include <linux/export.h> +#include <linux/seq_file.h> +#include <linux/netfs.h> +#include "internal.h" + +atomic_t netfs_n_rh_readahead; +atomic_t netfs_n_rh_readpage; +atomic_t netfs_n_rh_rreq; +atomic_t netfs_n_rh_sreq; +atomic_t netfs_n_rh_download; +atomic_t netfs_n_rh_download_done; +atomic_t netfs_n_rh_download_failed; +atomic_t netfs_n_rh_download_instead; +atomic_t netfs_n_rh_read; +atomic_t netfs_n_rh_read_done; +atomic_t netfs_n_rh_read_failed; +atomic_t netfs_n_rh_zero; +atomic_t netfs_n_rh_short_read; +atomic_t netfs_n_rh_write; +atomic_t netfs_n_rh_write_done; +atomic_t netfs_n_rh_write_failed; + +void netfs_stats_show(struct seq_file *m) +{ + seq_printf(m, "RdHelp : RA=%u RP=%u rr=%u sr=%u\n", + atomic_read(&netfs_n_rh_readahead), + atomic_read(&netfs_n_rh_readpage), + atomic_read(&netfs_n_rh_rreq), + atomic_read(&netfs_n_rh_sreq)); + seq_printf(m, "RdHelp : ZR=%u sh=%u\n", + atomic_read(&netfs_n_rh_zero), + atomic_read(&netfs_n_rh_short_read)); + seq_printf(m, "RdHelp : DL=%u ds=%u df=%u di=%u\n", + atomic_read(&netfs_n_rh_download), + atomic_read(&netfs_n_rh_download_done), + atomic_read(&netfs_n_rh_download_failed), + atomic_read(&netfs_n_rh_download_instead)); + seq_printf(m, "RdHelp : RD=%u rs=%u rf=%u\n", + atomic_read(&netfs_n_rh_read), + atomic_read(&netfs_n_rh_read_done), + atomic_read(&netfs_n_rh_read_failed)); + seq_printf(m, "RdHelp : WR=%u ws=%u wf=%u\n", + atomic_read(&netfs_n_rh_write), + atomic_read(&netfs_n_rh_write_done), + atomic_read(&netfs_n_rh_write_failed)); +} +EXPORT_SYMBOL(netfs_stats_show); |