mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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48776fd223
Switch the quota code over to use the generic XFS statistics infrastructure. While the legacy /proc/fs/xfs/xqm and /proc/fs/xfs/xqmstats interfaces are preserved for now the statistics that still have a meaning with the current code are now also available from /proc/fs/xfs/stats. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
198 lines
5.0 KiB
C
198 lines
5.0 KiB
C
/*
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* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "xfs.h"
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#include <linux/proc_fs.h>
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DEFINE_PER_CPU(struct xfsstats, xfsstats);
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static int counter_val(int idx)
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{
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int val = 0, cpu;
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for_each_possible_cpu(cpu)
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val += *(((__u32 *)&per_cpu(xfsstats, cpu) + idx));
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return val;
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}
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static int xfs_stat_proc_show(struct seq_file *m, void *v)
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{
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int i, j;
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__uint64_t xs_xstrat_bytes = 0;
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__uint64_t xs_write_bytes = 0;
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__uint64_t xs_read_bytes = 0;
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static const struct xstats_entry {
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char *desc;
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int endpoint;
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} xstats[] = {
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{ "extent_alloc", XFSSTAT_END_EXTENT_ALLOC },
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{ "abt", XFSSTAT_END_ALLOC_BTREE },
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{ "blk_map", XFSSTAT_END_BLOCK_MAPPING },
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{ "bmbt", XFSSTAT_END_BLOCK_MAP_BTREE },
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{ "dir", XFSSTAT_END_DIRECTORY_OPS },
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{ "trans", XFSSTAT_END_TRANSACTIONS },
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{ "ig", XFSSTAT_END_INODE_OPS },
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{ "log", XFSSTAT_END_LOG_OPS },
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{ "push_ail", XFSSTAT_END_TAIL_PUSHING },
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{ "xstrat", XFSSTAT_END_WRITE_CONVERT },
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{ "rw", XFSSTAT_END_READ_WRITE_OPS },
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{ "attr", XFSSTAT_END_ATTRIBUTE_OPS },
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{ "icluster", XFSSTAT_END_INODE_CLUSTER },
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{ "vnodes", XFSSTAT_END_VNODE_OPS },
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{ "buf", XFSSTAT_END_BUF },
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{ "abtb2", XFSSTAT_END_ABTB_V2 },
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{ "abtc2", XFSSTAT_END_ABTC_V2 },
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{ "bmbt2", XFSSTAT_END_BMBT_V2 },
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{ "ibt2", XFSSTAT_END_IBT_V2 },
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/* we print both series of quota information together */
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{ "qm", XFSSTAT_END_QM },
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};
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/* Loop over all stats groups */
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for (i = j = 0; i < ARRAY_SIZE(xstats); i++) {
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seq_printf(m, "%s", xstats[i].desc);
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/* inner loop does each group */
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for (; j < xstats[i].endpoint; j++)
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seq_printf(m, " %u", counter_val(j));
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seq_putc(m, '\n');
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}
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/* extra precision counters */
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for_each_possible_cpu(i) {
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xs_xstrat_bytes += per_cpu(xfsstats, i).xs_xstrat_bytes;
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xs_write_bytes += per_cpu(xfsstats, i).xs_write_bytes;
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xs_read_bytes += per_cpu(xfsstats, i).xs_read_bytes;
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}
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seq_printf(m, "xpc %Lu %Lu %Lu\n",
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xs_xstrat_bytes, xs_write_bytes, xs_read_bytes);
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seq_printf(m, "debug %u\n",
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#if defined(DEBUG)
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1);
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#else
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0);
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#endif
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return 0;
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}
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static int xfs_stat_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, xfs_stat_proc_show, NULL);
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}
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static const struct file_operations xfs_stat_proc_fops = {
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.owner = THIS_MODULE,
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.open = xfs_stat_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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/* legacy quota interfaces */
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#ifdef CONFIG_XFS_QUOTA
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static int xqm_proc_show(struct seq_file *m, void *v)
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{
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/* maximum; incore; ratio free to inuse; freelist */
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seq_printf(m, "%d\t%d\t%d\t%u\n",
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0,
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counter_val(XFSSTAT_END_XQMSTAT),
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0,
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counter_val(XFSSTAT_END_XQMSTAT + 1));
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return 0;
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}
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static int xqm_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, xqm_proc_show, NULL);
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}
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static const struct file_operations xqm_proc_fops = {
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.owner = THIS_MODULE,
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.open = xqm_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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/* legacy quota stats interface no 2 */
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static int xqmstat_proc_show(struct seq_file *m, void *v)
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{
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int j;
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seq_printf(m, "qm");
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for (j = XFSSTAT_END_IBT_V2; j < XFSSTAT_END_XQMSTAT; j++)
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seq_printf(m, " %u", counter_val(j));
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seq_putc(m, '\n');
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return 0;
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}
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static int xqmstat_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, xqmstat_proc_show, NULL);
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}
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static const struct file_operations xqmstat_proc_fops = {
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.owner = THIS_MODULE,
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.open = xqmstat_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif /* CONFIG_XFS_QUOTA */
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int
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xfs_init_procfs(void)
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{
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if (!proc_mkdir("fs/xfs", NULL))
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goto out;
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if (!proc_create("fs/xfs/stat", 0, NULL,
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&xfs_stat_proc_fops))
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goto out_remove_xfs_dir;
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#ifdef CONFIG_XFS_QUOTA
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if (!proc_create("fs/xfs/xqmstat", 0, NULL,
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&xqmstat_proc_fops))
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goto out_remove_stat_file;
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if (!proc_create("fs/xfs/xqm", 0, NULL,
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&xqm_proc_fops))
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goto out_remove_xqmstat_file;
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#endif
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return 0;
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#ifdef CONFIG_XFS_QUOTA
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out_remove_xqmstat_file:
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remove_proc_entry("fs/xfs/xqmstat", NULL);
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out_remove_stat_file:
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remove_proc_entry("fs/xfs/stat", NULL);
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#endif
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out_remove_xfs_dir:
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remove_proc_entry("fs/xfs", NULL);
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out:
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return -ENOMEM;
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}
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void
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xfs_cleanup_procfs(void)
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{
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#ifdef CONFIG_XFS_QUOTA
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remove_proc_entry("fs/xfs/xqm", NULL);
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remove_proc_entry("fs/xfs/xqmstat", NULL);
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#endif
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remove_proc_entry("fs/xfs/stat", NULL);
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remove_proc_entry("fs/xfs", NULL);
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}
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