-/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
- * vim:expandtab:shiftwidth=8:tabstop=8:
+/*
+ * GPL HEADER START
*
- * Copyright (C) 2002 Cluster File Systems, Inc.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
- * This file is part of Lustre, http://www.lustre.org.
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
*
- * Lustre is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
*
- * Lustre is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see
+ * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
*
- * You should have received a copy of the GNU General Public License
- * along with Lustre; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
*
+ * GPL HEADER END
+ */
+/*
+ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Use is subject to license terms.
+ *
+ * Copyright (c) 2012, 2014, Intel Corporation.
+ */
+/*
+ * This file is part of Lustre, http://www.lustre.org/
+ * Lustre is a trademark of Sun Microsystems, Inc.
*/
#define DEBUG_SUBSYSTEM S_LLITE
#include <linux/version.h>
-#include <lustre_lite.h>
+#include <linux/user_namespace.h>
+#ifdef HAVE_UIDGID_HEADER
+# include <linux/uidgid.h>
+#endif
+#include <lustre_param.h>
#include <lprocfs_status.h>
-#include <linux/seq_file.h>
#include <obd_support.h>
#include "llite_internal.h"
+#include "vvp_internal.h"
struct proc_dir_entry *proc_lustre_fs_root;
-#ifdef LPROCFS
+#ifdef CONFIG_PROC_FS
/* /proc/lustre/llite mount point registration */
-struct file_operations llite_dump_pgcache_fops;
-struct file_operations ll_ra_stats_fops;
-struct file_operations ll_rw_extents_stats_fops;
-struct file_operations ll_rw_extents_stats_pp_fops;
-struct file_operations ll_rw_offset_stats_fops;
-
-static int ll_rd_blksize(char *page, char **start, off_t off, int count,
- int *eof, void *data)
-{
- struct super_block *sb = (struct super_block *)data;
- struct obd_statfs osfs;
- int rc;
-
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ,
- OBD_STATFS_NODELAY);
- if (!rc) {
- *eof = 1;
- rc = snprintf(page, count, "%u\n", osfs.os_bsize);
- }
+static const struct file_operations ll_rw_extents_stats_fops;
+static const struct file_operations ll_rw_extents_stats_pp_fops;
+static const struct file_operations ll_rw_offset_stats_fops;
- return rc;
+static int ll_blksize_seq_show(struct seq_file *m, void *v)
+{
+ struct super_block *sb = m->private;
+ struct obd_statfs osfs;
+ int rc;
+
+ LASSERT(sb != NULL);
+ rc = ll_statfs_internal(sb, &osfs,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+ OBD_STATFS_NODELAY);
+ if (!rc)
+ rc = seq_printf(m, "%u\n", osfs.os_bsize);
+ return rc;
}
+LPROC_SEQ_FOPS_RO(ll_blksize);
-static int ll_rd_kbytestotal(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_kbytestotal_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = (struct super_block *)data;
- struct obd_statfs osfs;
- int rc;
-
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ,
- OBD_STATFS_NODELAY);
- if (!rc) {
- __u32 blk_size = osfs.os_bsize >> 10;
- __u64 result = osfs.os_blocks;
-
- while (blk_size >>= 1)
- result <<= 1;
-
- *eof = 1;
- rc = snprintf(page, count, LPU64"\n", result);
- }
- return rc;
-
+ struct super_block *sb = m->private;
+ struct obd_statfs osfs;
+ int rc;
+
+ LASSERT(sb != NULL);
+ rc = ll_statfs_internal(sb, &osfs,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+ OBD_STATFS_NODELAY);
+ if (!rc) {
+ __u32 blk_size = osfs.os_bsize >> 10;
+ __u64 result = osfs.os_blocks;
+
+ while (blk_size >>= 1)
+ result <<= 1;
+
+ rc = seq_printf(m, LPU64"\n", result);
+ }
+ return rc;
}
+LPROC_SEQ_FOPS_RO(ll_kbytestotal);
-static int ll_rd_kbytesfree(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_kbytesfree_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = (struct super_block *)data;
- struct obd_statfs osfs;
- int rc;
-
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ,
- OBD_STATFS_NODELAY);
- if (!rc) {
- __u32 blk_size = osfs.os_bsize >> 10;
- __u64 result = osfs.os_bfree;
-
- while (blk_size >>= 1)
- result <<= 1;
-
- *eof = 1;
- rc = snprintf(page, count, LPU64"\n", result);
- }
- return rc;
+ struct super_block *sb = m->private;
+ struct obd_statfs osfs;
+ int rc;
+
+ LASSERT(sb != NULL);
+ rc = ll_statfs_internal(sb, &osfs,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+ OBD_STATFS_NODELAY);
+ if (!rc) {
+ __u32 blk_size = osfs.os_bsize >> 10;
+ __u64 result = osfs.os_bfree;
+
+ while (blk_size >>= 1)
+ result <<= 1;
+
+ rc = seq_printf(m, LPU64"\n", result);
+ }
+ return rc;
}
+LPROC_SEQ_FOPS_RO(ll_kbytesfree);
-static int ll_rd_kbytesavail(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_kbytesavail_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = (struct super_block *)data;
- struct obd_statfs osfs;
- int rc;
-
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ,
- OBD_STATFS_NODELAY);
- if (!rc) {
- __u32 blk_size = osfs.os_bsize >> 10;
- __u64 result = osfs.os_bavail;
-
- while (blk_size >>= 1)
- result <<= 1;
-
- *eof = 1;
- rc = snprintf(page, count, LPU64"\n", result);
- }
- return rc;
+ struct super_block *sb = m->private;
+ struct obd_statfs osfs;
+ int rc;
+
+ LASSERT(sb != NULL);
+ rc = ll_statfs_internal(sb, &osfs,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+ OBD_STATFS_NODELAY);
+ if (!rc) {
+ __u32 blk_size = osfs.os_bsize >> 10;
+ __u64 result = osfs.os_bavail;
+
+ while (blk_size >>= 1)
+ result <<= 1;
+
+ rc = seq_printf(m, LPU64"\n", result);
+ }
+ return rc;
}
+LPROC_SEQ_FOPS_RO(ll_kbytesavail);
-static int ll_rd_filestotal(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_filestotal_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = (struct super_block *)data;
- struct obd_statfs osfs;
- int rc;
-
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ,
- OBD_STATFS_NODELAY);
- if (!rc) {
- *eof = 1;
- rc = snprintf(page, count, LPU64"\n", osfs.os_files);
- }
- return rc;
+ struct super_block *sb = m->private;
+ struct obd_statfs osfs;
+ int rc;
+
+ LASSERT(sb != NULL);
+ rc = ll_statfs_internal(sb, &osfs,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+ OBD_STATFS_NODELAY);
+ if (!rc)
+ rc = seq_printf(m, LPU64"\n", osfs.os_files);
+ return rc;
}
+LPROC_SEQ_FOPS_RO(ll_filestotal);
-static int ll_rd_filesfree(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_filesfree_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = (struct super_block *)data;
- struct obd_statfs osfs;
- int rc;
-
- LASSERT(sb != NULL);
- rc = ll_statfs_internal(sb, &osfs, cfs_time_current_64() - HZ,
- OBD_STATFS_NODELAY);
- if (!rc) {
- *eof = 1;
- rc = snprintf(page, count, LPU64"\n", osfs.os_ffree);
- }
- return rc;
-
+ struct super_block *sb = m->private;
+ struct obd_statfs osfs;
+ int rc;
+
+ LASSERT(sb != NULL);
+ rc = ll_statfs_internal(sb, &osfs,
+ cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
+ OBD_STATFS_NODELAY);
+ if (!rc)
+ rc = seq_printf(m, LPU64"\n", osfs.os_ffree);
+ return rc;
}
+LPROC_SEQ_FOPS_RO(ll_filesfree);
-static int ll_rd_client_type(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_client_type_seq_show(struct seq_file *m, void *v)
{
- struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)data);
- int rc;
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
+ int rc;
- LASSERT(sbi != NULL);
-
- *eof = 1;
- if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
- rc = snprintf(page, count, "remote client\n");
- else
- rc = snprintf(page, count, "local client\n");
+ LASSERT(sbi != NULL);
- return rc;
+ if (sbi->ll_flags & LL_SBI_RMT_CLIENT)
+ rc = seq_printf(m, "remote client\n");
+ else
+ rc = seq_printf(m, "local client\n");
+ return rc;
}
+LPROC_SEQ_FOPS_RO(ll_client_type);
-static int ll_rd_fstype(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_fstype_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = (struct super_block*)data;
+ struct super_block *sb = m->private;
- LASSERT(sb != NULL);
- *eof = 1;
- return snprintf(page, count, "%s\n", sb->s_type->name);
+ LASSERT(sb != NULL);
+ return seq_printf(m, "%s\n", sb->s_type->name);
}
+LPROC_SEQ_FOPS_RO(ll_fstype);
-static int ll_rd_sb_uuid(char *page, char **start, off_t off, int count,
- int *eof, void *data)
+static int ll_sb_uuid_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = (struct super_block *)data;
+ struct super_block *sb = m->private;
- LASSERT(sb != NULL);
- *eof = 1;
- return snprintf(page, count, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid);
+ LASSERT(sb != NULL);
+ return seq_printf(m, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid);
}
+LPROC_SEQ_FOPS_RO(ll_sb_uuid);
-static int ll_rd_max_readahead_mb(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ll_xattr_cache_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- long pages_number;
- int mult;
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
- spin_lock(&sbi->ll_lock);
- pages_number = sbi->ll_ra_info.ra_max_pages;
- spin_unlock(&sbi->ll_lock);
-
- mult = 1 << (20 - PAGE_CACHE_SHIFT);
- return lprocfs_read_frac_helper(page, count, pages_number, mult);
+ return seq_printf(m, "%u\n", sbi->ll_xattr_cache_enabled);
}
-static int ll_wr_max_readahead_mb(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t ll_xattr_cache_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- int mult, rc, pages_number;
+ struct seq_file *m = file->private_data;
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
+ int val, rc;
- mult = 1 << (20 - CFS_PAGE_SHIFT);
- rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
- if (rc)
- return rc;
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
- if (pages_number < 0 || pages_number > num_physpages / 2) {
- CERROR("can't set file readahead more than %lu MB\n",
- num_physpages >> (20 - CFS_PAGE_SHIFT + 1)); /*1/2 of RAM*/
- return -ERANGE;
- }
+ if (val != 0 && val != 1)
+ return -ERANGE;
- spin_lock(&sbi->ll_lock);
- sbi->ll_ra_info.ra_max_pages = pages_number;
- spin_unlock(&sbi->ll_lock);
+ if (val == 1 && !(sbi->ll_flags & LL_SBI_XATTR_CACHE))
+ return -ENOTSUPP;
- return count;
+ sbi->ll_xattr_cache_enabled = val;
+
+ return count;
}
+LPROC_SEQ_FOPS(ll_xattr_cache);
-static int ll_rd_max_read_ahead_whole_mb(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ll_site_stats_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- long pages_number;
- int mult;
+ struct super_block *sb = m->private;
- spin_lock(&sbi->ll_lock);
- pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages;
- spin_unlock(&sbi->ll_lock);
-
- mult = 1 << (20 - CFS_PAGE_SHIFT);
- return lprocfs_read_frac_helper(page, count, pages_number, mult);
+ /*
+ * See description of statistical counters in struct cl_site, and
+ * struct lu_site.
+ */
+ return cl_site_stats_print(lu2cl_site(ll_s2sbi(sb)->ll_site), m);
}
+LPROC_SEQ_FOPS_RO(ll_site_stats);
-static int ll_wr_max_read_ahead_whole_mb(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int ll_max_readahead_mb_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- int mult, rc, pages_number;
-
- mult = 1 << (20 - CFS_PAGE_SHIFT);
- rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
- if (rc)
- return rc;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ long pages_number;
+ int mult;
- /* Cap this at the current max readahead window size, the readahead
- * algorithm does this anyway so it's pointless to set it larger. */
- if (pages_number < 0 || pages_number > sbi->ll_ra_info.ra_max_pages) {
- CERROR("can't set max_read_ahead_whole_mb more than "
- "max_read_ahead_mb: %lu\n",
- sbi->ll_ra_info.ra_max_pages >> (20 - CFS_PAGE_SHIFT));
- return -ERANGE;
- }
+ spin_lock(&sbi->ll_lock);
+ pages_number = sbi->ll_ra_info.ra_max_pages;
+ spin_unlock(&sbi->ll_lock);
- spin_lock(&sbi->ll_lock);
- sbi->ll_ra_info.ra_max_read_ahead_whole_pages = pages_number;
- spin_unlock(&sbi->ll_lock);
+ mult = 1 << (20 - PAGE_CACHE_SHIFT);
+ return lprocfs_seq_read_frac_helper(m, pages_number, mult);
+}
- return count;
+static ssize_t
+ll_max_readahead_mb_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *m = file->private_data;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ __u64 val;
+ long pages_number;
+ int pages_shift;
+ int rc;
+
+ pages_shift = 20 - PAGE_CACHE_SHIFT;
+ rc = lprocfs_write_frac_u64_helper(buffer, count, &val,
+ 1 << pages_shift);
+ if (rc)
+ return rc;
+
+ if (val > LONG_MAX)
+ return -ERANGE;
+ pages_number = (long)val;
+
+ if (pages_number < 0 || pages_number > totalram_pages / 2) {
+ /* 1/2 of RAM */
+ CERROR("%s: can't set max_readahead_mb=%lu > %luMB\n",
+ ll_get_fsname(sb, NULL, 0), pages_number >> pages_shift,
+ totalram_pages >> (pages_shift + 1));
+ return -ERANGE;
+ }
+
+ spin_lock(&sbi->ll_lock);
+ sbi->ll_ra_info.ra_max_pages = pages_number;
+ spin_unlock(&sbi->ll_lock);
+ return count;
}
+LPROC_SEQ_FOPS(ll_max_readahead_mb);
-static int ll_rd_max_cached_mb(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ll_max_readahead_per_file_mb_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- long pages_number;
- int mult;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ long pages_number;
+ int mult;
- spin_lock(&sbi->ll_lock);
- pages_number = sbi->ll_async_page_max;
- spin_unlock(&sbi->ll_lock);
+ spin_lock(&sbi->ll_lock);
+ pages_number = sbi->ll_ra_info.ra_max_pages_per_file;
+ spin_unlock(&sbi->ll_lock);
- mult = 1 << (20 - CFS_PAGE_SHIFT);
- return lprocfs_read_frac_helper(page, count, pages_number, mult);;
+ mult = 1 << (20 - PAGE_CACHE_SHIFT);
+ return lprocfs_seq_read_frac_helper(m, pages_number, mult);
}
-static int ll_wr_max_cached_mb(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t
+ll_max_readahead_per_file_mb_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- int mult, rc, pages_number;
+ struct seq_file *m = file->private_data;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ int pages_shift, rc, pages_number;
+
+ pages_shift = 20 - PAGE_CACHE_SHIFT;
+ rc = lprocfs_write_frac_helper(buffer, count, &pages_number,
+ 1 << pages_shift);
+ if (rc)
+ return rc;
+
+ if (pages_number < 0 || pages_number > sbi->ll_ra_info.ra_max_pages) {
+ CERROR("%s: can't set max_readahead_per_file_mb=%u > "
+ "max_read_ahead_mb=%lu\n", ll_get_fsname(sb, NULL, 0),
+ pages_number >> pages_shift,
+ sbi->ll_ra_info.ra_max_pages >> pages_shift);
+ return -ERANGE;
+ }
+
+ spin_lock(&sbi->ll_lock);
+ sbi->ll_ra_info.ra_max_pages_per_file = pages_number;
+ spin_unlock(&sbi->ll_lock);
+ return count;
+}
+LPROC_SEQ_FOPS(ll_max_readahead_per_file_mb);
- mult = 1 << (20 - CFS_PAGE_SHIFT);
- rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult);
- if (rc)
- return rc;
+static int ll_max_read_ahead_whole_mb_seq_show(struct seq_file *m, void *v)
+{
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ long pages_number;
+ int mult;
- if (pages_number < 0 || pages_number > num_physpages) {
- CERROR("can't set max cache more than %lu MB\n",
- num_physpages >> (20 - CFS_PAGE_SHIFT));
- return -ERANGE;
- }
+ spin_lock(&sbi->ll_lock);
+ pages_number = sbi->ll_ra_info.ra_max_read_ahead_whole_pages;
+ spin_unlock(&sbi->ll_lock);
- spin_lock(&sbi->ll_lock);
- sbi->ll_async_page_max = pages_number ;
- spin_unlock(&sbi->ll_lock);
-
- if (!sbi->ll_dt_exp)
- /* Not set up yet, don't call llap_shrink_cache */
- return count;
+ mult = 1 << (20 - PAGE_CACHE_SHIFT);
+ return lprocfs_seq_read_frac_helper(m, pages_number, mult);
+}
- if (sbi->ll_async_page_count >= sbi->ll_async_page_max)
- llap_shrink_cache(sbi, 0);
+static ssize_t
+ll_max_read_ahead_whole_mb_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *m = file->private_data;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ int pages_shift, rc, pages_number;
+
+ pages_shift = 20 - PAGE_CACHE_SHIFT;
+ rc = lprocfs_write_frac_helper(buffer, count, &pages_number,
+ 1 << pages_shift);
+ if (rc)
+ return rc;
+
+ /* Cap this at the current max readahead window size, the readahead
+ * algorithm does this anyway so it's pointless to set it larger. */
+ if (pages_number < 0 ||
+ pages_number > sbi->ll_ra_info.ra_max_pages_per_file) {
+ CERROR("%s: can't set max_read_ahead_whole_mb=%u > "
+ "max_read_ahead_per_file_mb=%lu\n",
+ ll_get_fsname(sb, NULL, 0),
+ pages_number >> pages_shift,
+ sbi->ll_ra_info.ra_max_pages_per_file >> pages_shift);
+ return -ERANGE;
+ }
+
+ spin_lock(&sbi->ll_lock);
+ sbi->ll_ra_info.ra_max_read_ahead_whole_pages = pages_number;
+ spin_unlock(&sbi->ll_lock);
+ return count;
+}
+LPROC_SEQ_FOPS(ll_max_read_ahead_whole_mb);
- return count;
+static int ll_max_cached_mb_seq_show(struct seq_file *m, void *v)
+{
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct cl_client_cache *cache = sbi->ll_cache;
+ int shift = 20 - PAGE_CACHE_SHIFT;
+ long max_cached_mb;
+ long unused_mb;
+
+ max_cached_mb = cache->ccc_lru_max >> shift;
+ unused_mb = atomic_long_read(&cache->ccc_lru_left) >> shift;
+ return seq_printf(m,
+ "users: %d\n"
+ "max_cached_mb: %ld\n"
+ "used_mb: %ld\n"
+ "unused_mb: %ld\n"
+ "reclaim_count: %u\n",
+ atomic_read(&cache->ccc_users),
+ max_cached_mb,
+ max_cached_mb - unused_mb,
+ unused_mb,
+ cache->ccc_lru_shrinkers);
+}
+
+static ssize_t
+ll_max_cached_mb_seq_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *m = file->private_data;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct cl_client_cache *cache = sbi->ll_cache;
+ struct lu_env *env;
+ __u64 val;
+ long diff = 0;
+ long nrpages = 0;
+ long pages_number;
+ int refcheck;
+ int mult;
+ long rc;
+ char kernbuf[128];
+ ENTRY;
+
+ if (count >= sizeof(kernbuf))
+ RETURN(-EINVAL);
+
+ if (copy_from_user(kernbuf, buffer, count))
+ RETURN(-EFAULT);
+ kernbuf[count] = 0;
+
+ mult = 1 << (20 - PAGE_CACHE_SHIFT);
+ buffer += lprocfs_find_named_value(kernbuf, "max_cached_mb:", &count) -
+ kernbuf;
+ rc = lprocfs_write_frac_u64_helper(buffer, count, &val, mult);
+ if (rc)
+ RETURN(rc);
+
+ if (val > LONG_MAX)
+ return -ERANGE;
+ pages_number = (long)val;
+
+ if (pages_number < 0 || pages_number > totalram_pages) {
+ CERROR("%s: can't set max cache more than %lu MB\n",
+ ll_get_fsname(sb, NULL, 0),
+ totalram_pages >> (20 - PAGE_CACHE_SHIFT));
+ RETURN(-ERANGE);
+ }
+ /* Allow enough cache so clients can make well-formed RPCs */
+ pages_number = max_t(long, pages_number, PTLRPC_MAX_BRW_PAGES);
+
+ spin_lock(&sbi->ll_lock);
+ diff = pages_number - cache->ccc_lru_max;
+ spin_unlock(&sbi->ll_lock);
+
+ /* easy - add more LRU slots. */
+ if (diff >= 0) {
+ atomic_long_add(diff, &cache->ccc_lru_left);
+ GOTO(out, rc = 0);
+ }
+
+ env = cl_env_get(&refcheck);
+ if (IS_ERR(env))
+ RETURN(rc);
+
+ diff = -diff;
+ while (diff > 0) {
+ long tmp;
+
+ /* reduce LRU budget from free slots. */
+ do {
+ long ov, nv;
+
+ ov = atomic_long_read(&cache->ccc_lru_left);
+ if (ov == 0)
+ break;
+
+ nv = ov > diff ? ov - diff : 0;
+ rc = atomic_long_cmpxchg(&cache->ccc_lru_left, ov, nv);
+ if (likely(ov == rc)) {
+ diff -= ov - nv;
+ nrpages += ov - nv;
+ break;
+ }
+ } while (1);
+
+ if (diff <= 0)
+ break;
+
+ if (sbi->ll_dt_exp == NULL) { /* being initialized */
+ rc = -ENODEV;
+ break;
+ }
+
+ /* difficult - have to ask OSCs to drop LRU slots. */
+ tmp = diff << 1;
+ rc = obd_set_info_async(env, sbi->ll_dt_exp,
+ sizeof(KEY_CACHE_LRU_SHRINK),
+ KEY_CACHE_LRU_SHRINK,
+ sizeof(tmp), &tmp, NULL);
+ if (rc < 0)
+ break;
+ }
+ cl_env_put(env, &refcheck);
+
+out:
+ if (rc >= 0) {
+ spin_lock(&sbi->ll_lock);
+ cache->ccc_lru_max = pages_number;
+ spin_unlock(&sbi->ll_lock);
+ rc = count;
+ } else {
+ atomic_long_add(nrpages, &cache->ccc_lru_left);
+ }
+ return rc;
}
+LPROC_SEQ_FOPS(ll_max_cached_mb);
-static int ll_rd_checksum(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ll_checksum_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
- return snprintf(page, count, "%u\n",
- (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
+ return seq_printf(m, "%u\n", (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0);
}
-static int ll_wr_checksum(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t ll_checksum_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct seq_file *m = file->private_data;
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
int val, rc;
if (!sbi->ll_dt_exp)
else
sbi->ll_flags &= ~LL_SBI_CHECKSUM;
- rc = obd_set_info_async(sbi->ll_dt_exp, strlen("checksum"), "checksum",
- sizeof(val), &val, NULL);
+ rc = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM),
+ KEY_CHECKSUM, sizeof(val), &val, NULL);
if (rc)
CWARN("Failed to set OSC checksum flags: %d\n", rc);
return count;
}
+LPROC_SEQ_FOPS(ll_checksum);
+
+static int ll_rd_track_id(struct seq_file *m, enum stats_track_type type)
+{
+ struct super_block *sb = m->private;
+
+ if (ll_s2sbi(sb)->ll_stats_track_type == type) {
+ return seq_printf(m, "%d\n",
+ ll_s2sbi(sb)->ll_stats_track_id);
+ } else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL) {
+ return seq_printf(m, "0 (all)\n");
+ } else {
+ return seq_printf(m, "untracked\n");
+ }
+}
-static int ll_rd_max_rw_chunk(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ll_wr_track_id(const char __user *buffer, unsigned long count,
+ void *data, enum stats_track_type type)
{
- struct super_block *sb = data;
+ struct super_block *sb = data;
+ int rc, pid;
+
+ rc = lprocfs_write_helper(buffer, count, &pid);
+ if (rc)
+ return rc;
+ ll_s2sbi(sb)->ll_stats_track_id = pid;
+ if (pid == 0)
+ ll_s2sbi(sb)->ll_stats_track_type = STATS_TRACK_ALL;
+ else
+ ll_s2sbi(sb)->ll_stats_track_type = type;
+ lprocfs_clear_stats(ll_s2sbi(sb)->ll_stats);
+ return count;
+}
- return snprintf(page, count, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk);
+static int ll_track_pid_seq_show(struct seq_file *m, void *v)
+{
+ return ll_rd_track_id(m, STATS_TRACK_PID);
}
-static int ll_wr_max_rw_chunk(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t ll_track_pid_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct super_block *sb = data;
- int rc, val;
+ struct seq_file *seq = file->private_data;
+ return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_PID);
+}
+LPROC_SEQ_FOPS(ll_track_pid);
+
+static int ll_track_ppid_seq_show(struct seq_file *m, void *v)
+{
+ return ll_rd_track_id(m, STATS_TRACK_PPID);
+}
+
+static ssize_t ll_track_ppid_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_PPID);
+}
+LPROC_SEQ_FOPS(ll_track_ppid);
+
+static int ll_track_gid_seq_show(struct seq_file *m, void *v)
+{
+ return ll_rd_track_id(m, STATS_TRACK_GID);
+}
+
+static ssize_t ll_track_gid_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ return ll_wr_track_id(buffer, count, seq->private, STATS_TRACK_GID);
+}
+LPROC_SEQ_FOPS(ll_track_gid);
+
+static int ll_statahead_max_seq_show(struct seq_file *m, void *v)
+{
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+
+ return seq_printf(m, "%u\n", sbi->ll_sa_max);
+}
+
+static ssize_t ll_statahead_max_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *m = file->private_data;
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
+ int val, rc;
rc = lprocfs_write_helper(buffer, count, &val);
if (rc)
return rc;
- ll_s2sbi(sb)->ll_max_rw_chunk = val;
+
+ if (val >= 0 && val <= LL_SA_RPC_MAX)
+ sbi->ll_sa_max = val;
+ else
+ CERROR("Bad statahead_max value %d. Valid values are in the "
+ "range [0, %d]\n", val, LL_SA_RPC_MAX);
+
return count;
}
+LPROC_SEQ_FOPS(ll_statahead_max);
-static int ll_rd_track_id(char *page, int count, void *data,
- enum stats_track_type type)
+static int ll_statahead_agl_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = data;
-
- if (ll_s2sbi(sb)->ll_stats_track_type == type) {
- return snprintf(page, count, "%d\n",
- ll_s2sbi(sb)->ll_stats_track_id);
-
- } else if (ll_s2sbi(sb)->ll_stats_track_type == STATS_TRACK_ALL) {
- return snprintf(page, count, "0 (all)\n");
- } else {
- return snprintf(page, count, "untracked\n");
- }
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+
+ return seq_printf(m, "%u\n",
+ sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0);
}
-static int ll_wr_track_id(const char *buffer, unsigned long count, void *data,
- enum stats_track_type type)
+static ssize_t ll_statahead_agl_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct super_block *sb = data;
- int rc, pid;
+ struct seq_file *m = file->private_data;
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
+ int val, rc;
- rc = lprocfs_write_helper(buffer, count, &pid);
+ rc = lprocfs_write_helper(buffer, count, &val);
if (rc)
return rc;
- ll_s2sbi(sb)->ll_stats_track_id = pid;
- if (pid == 0)
- ll_s2sbi(sb)->ll_stats_track_type = STATS_TRACK_ALL;
+
+ if (val)
+ sbi->ll_flags |= LL_SBI_AGL_ENABLED;
else
- ll_s2sbi(sb)->ll_stats_track_type = type;
- lprocfs_clear_stats(ll_s2sbi(sb)->ll_stats);
+ sbi->ll_flags &= ~LL_SBI_AGL_ENABLED;
+
return count;
}
+LPROC_SEQ_FOPS(ll_statahead_agl);
-static int ll_rd_track_pid(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ll_statahead_stats_seq_show(struct seq_file *m, void *v)
{
- return (ll_rd_track_id(page, count, data, STATS_TRACK_PID));
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+
+ return seq_printf(m,
+ "statahead total: %u\n"
+ "statahead wrong: %u\n"
+ "agl total: %u\n",
+ atomic_read(&sbi->ll_sa_total),
+ atomic_read(&sbi->ll_sa_wrong),
+ atomic_read(&sbi->ll_agl_total));
}
+LPROC_SEQ_FOPS_RO(ll_statahead_stats);
-static int ll_wr_track_pid(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int ll_lazystatfs_seq_show(struct seq_file *m, void *v)
{
- return (ll_wr_track_id(buffer, count, data, STATS_TRACK_PID));
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+
+ return seq_printf(m, "%u\n",
+ (sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0);
}
-static int ll_rd_track_ppid(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static ssize_t ll_lazystatfs_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- return (ll_rd_track_id(page, count, data, STATS_TRACK_PPID));
+ struct seq_file *m = file->private_data;
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private);
+ int val, rc;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc)
+ return rc;
+
+ if (val)
+ sbi->ll_flags |= LL_SBI_LAZYSTATFS;
+ else
+ sbi->ll_flags &= ~LL_SBI_LAZYSTATFS;
+
+ return count;
}
+LPROC_SEQ_FOPS(ll_lazystatfs);
-static int ll_wr_track_ppid(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int ll_max_easize_seq_show(struct seq_file *m, void *v)
{
- return (ll_wr_track_id(buffer, count, data, STATS_TRACK_PPID));
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ unsigned int ealen;
+ int rc;
+
+ rc = ll_get_max_mdsize(sbi, &ealen);
+ if (rc)
+ return rc;
+
+ return seq_printf(m, "%u\n", ealen);
}
+LPROC_SEQ_FOPS_RO(ll_max_easize);
-static int ll_rd_track_gid(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Get default_easize.
+ *
+ * \see client_obd::cl_default_mds_easize
+ *
+ * \param[in] m seq_file handle
+ * \param[in] v unused for single entry
+ *
+ * \retval 0 on success
+ * \retval negative negated errno on failure
+ */
+static int ll_default_easize_seq_show(struct seq_file *m, void *v)
{
- return (ll_rd_track_id(page, count, data, STATS_TRACK_GID));
-}
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ unsigned int ealen;
+ int rc;
-static int ll_wr_track_gid(struct file *file, const char *buffer,
- unsigned long count, void *data)
-{
- return (ll_wr_track_id(buffer, count, data, STATS_TRACK_GID));
+ rc = ll_get_default_mdsize(sbi, &ealen);
+ if (rc)
+ return rc;
+
+ return seq_printf(m, "%u\n", ealen);
}
-static int ll_rd_contention_time(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+/**
+ * Set default_easize.
+ *
+ * Range checking on the passed value is handled by
+ * ll_set_default_mdsize().
+ *
+ * \see client_obd::cl_default_mds_easize
+ *
+ * \param[in] file proc file
+ * \param[in] buffer string passed from user space
+ * \param[in] count \a buffer length
+ * \param[in] off unused for single entry
+ *
+ * \retval positive \a count on success
+ * \retval negative negated errno on failure
+ */
+static ssize_t ll_default_easize_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *unused)
{
- struct super_block *sb = data;
+ struct seq_file *seq = file->private_data;
+ struct super_block *sb = (struct super_block *)seq->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ int val;
+ int rc;
+
+ if (count == 0)
+ return 0;
+
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc < 0)
+ return rc;
- *eof = 1;
- return snprintf(page, count, "%u\n", ll_s2sbi(sb)->ll_contention_time);
+ rc = ll_set_default_mdsize(sbi, val);
+ if (rc)
+ return rc;
+ return count;
+}
+LPROC_SEQ_FOPS(ll_default_easize);
+
+static int ll_sbi_flags_seq_show(struct seq_file *m, void *v)
+{
+ const char *str[] = LL_SBI_FLAGS;
+ struct super_block *sb = m->private;
+ int flags = ll_s2sbi(sb)->ll_flags;
+ int i = 0;
+
+ while (flags != 0) {
+ if (ARRAY_SIZE(str) <= i) {
+ CERROR("%s: Revise array LL_SBI_FLAGS to match sbi "
+ "flags please.\n", ll_get_fsname(sb, NULL, 0));
+ return -EINVAL;
+ }
+
+ if (flags & 0x1)
+ seq_printf(m, "%s ", str[i]);
+ flags >>= 1;
+ ++i;
+ }
+ seq_printf(m, "\b\n");
+ return 0;
}
+LPROC_SEQ_FOPS_RO(ll_sbi_flags);
-static int ll_wr_contention_time(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static int ll_unstable_stats_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct cl_client_cache *cache = sbi->ll_cache;
+ long pages;
+ int mb;
+
+ pages = atomic_long_read(&cache->ccc_unstable_nr);
+ mb = (pages * PAGE_CACHE_SIZE) >> 20;
+
+ return seq_printf(m, "unstable_check: %8d\n"
+ "unstable_pages: %12ld\n"
+ "unstable_mb: %8d\n",
+ cache->ccc_unstable_check, pages, mb);
+}
- return lprocfs_write_helper(buffer, count,&sbi->ll_contention_time) ?:
- count;
+static ssize_t ll_unstable_stats_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *unused)
+{
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)seq->private);
+ char kernbuf[128];
+ int val, rc;
+
+ if (count == 0)
+ return 0;
+ if (count >= sizeof(kernbuf))
+ return -EINVAL;
+
+ if (copy_from_user(kernbuf, buffer, count))
+ return -EFAULT;
+ kernbuf[count] = 0;
+
+ buffer += lprocfs_find_named_value(kernbuf, "unstable_check:", &count) -
+ kernbuf;
+ rc = lprocfs_write_helper(buffer, count, &val);
+ if (rc < 0)
+ return rc;
+
+ /* borrow lru lock to set the value */
+ spin_lock(&sbi->ll_cache->ccc_lru_lock);
+ sbi->ll_cache->ccc_unstable_check = !!val;
+ spin_unlock(&sbi->ll_cache->ccc_lru_lock);
+
+ return count;
}
+LPROC_SEQ_FOPS(ll_unstable_stats);
-static int ll_rd_lockless_truncate(char *page, char **start, off_t off,
- int count, int *eof, void *data)
+static int ll_root_squash_seq_show(struct seq_file *m, void *v)
{
- struct super_block *sb = data;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct root_squash_info *squash = &sbi->ll_squash;
- *eof = 1;
- return snprintf(page, count, "%u\n",
- ll_s2sbi(sb)->ll_lockless_truncate_enable);
+ return seq_printf(m, "%u:%u\n", squash->rsi_uid, squash->rsi_gid);
}
-static int ll_wr_lockless_truncate(struct file *file, const char *buffer,
- unsigned long count, void *data)
+static ssize_t ll_root_squash_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
{
- struct super_block *sb = data;
- struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct seq_file *m = file->private_data;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct root_squash_info *squash = &sbi->ll_squash;
+
+ return lprocfs_wr_root_squash(buffer, count, squash,
+ ll_get_fsname(sb, NULL, 0));
+}
+LPROC_SEQ_FOPS(ll_root_squash);
- return lprocfs_write_helper(buffer, count,
- &sbi->ll_lockless_truncate_enable)
- ?: count;
+static int ll_nosquash_nids_seq_show(struct seq_file *m, void *v)
+{
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct root_squash_info *squash = &sbi->ll_squash;
+ int len, rc;
+
+ down_read(&squash->rsi_sem);
+ if (!list_empty(&squash->rsi_nosquash_nids)) {
+ len = cfs_print_nidlist(m->buf + m->count, m->size - m->count,
+ &squash->rsi_nosquash_nids);
+ m->count += len;
+ rc = seq_printf(m, "\n");
+ } else {
+ rc = seq_printf(m, "NONE\n");
+ }
+ up_read(&squash->rsi_sem);
+
+ return rc;
}
-static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
- { "uuid", ll_rd_sb_uuid, 0, 0 },
- //{ "mntpt_path", ll_rd_path, 0, 0 },
- { "fstype", ll_rd_fstype, 0, 0 },
- { "blocksize", ll_rd_blksize, 0, 0 },
- { "kbytestotal", ll_rd_kbytestotal, 0, 0 },
- { "kbytesfree", ll_rd_kbytesfree, 0, 0 },
- { "kbytesavail", ll_rd_kbytesavail, 0, 0 },
- { "filestotal", ll_rd_filestotal, 0, 0 },
- { "filesfree", ll_rd_filesfree, 0, 0 },
- { "client_type", ll_rd_client_type, 0, 0 },
- //{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
- { "max_read_ahead_mb", ll_rd_max_readahead_mb,
- ll_wr_max_readahead_mb, 0 },
- { "max_read_ahead_whole_mb", ll_rd_max_read_ahead_whole_mb,
- ll_wr_max_read_ahead_whole_mb, 0 },
- { "max_cached_mb", ll_rd_max_cached_mb, ll_wr_max_cached_mb, 0 },
- { "checksum_pages", ll_rd_checksum, ll_wr_checksum, 0 },
- { "max_rw_chunk", ll_rd_max_rw_chunk, ll_wr_max_rw_chunk, 0 },
- { "stats_track_pid", ll_rd_track_pid, ll_wr_track_pid, 0 },
- { "stats_track_ppid", ll_rd_track_ppid, ll_wr_track_ppid, 0 },
- { "stats_track_gid", ll_rd_track_gid, ll_wr_track_gid, 0 },
- { "contention_seconds", ll_rd_contention_time, ll_wr_contention_time, 0},
- { "lockless_truncate", ll_rd_lockless_truncate,
- ll_wr_lockless_truncate, 0},
- { 0 }
+static ssize_t ll_nosquash_nids_seq_write(struct file *file,
+ const char __user *buffer,
+ size_t count, loff_t *off)
+{
+ struct seq_file *m = file->private_data;
+ struct super_block *sb = m->private;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct root_squash_info *squash = &sbi->ll_squash;
+ int rc;
+
+ rc = lprocfs_wr_nosquash_nids(buffer, count, squash,
+ ll_get_fsname(sb, NULL, 0));
+ if (rc < 0)
+ return rc;
+
+ ll_compute_rootsquash_state(sbi);
+
+ return rc;
+}
+LPROC_SEQ_FOPS(ll_nosquash_nids);
+
+struct lprocfs_vars lprocfs_llite_obd_vars[] = {
+ { .name = "uuid",
+ .fops = &ll_sb_uuid_fops },
+ { .name = "fstype",
+ .fops = &ll_fstype_fops },
+ { .name = "site",
+ .fops = &ll_site_stats_fops },
+ { .name = "blocksize",
+ .fops = &ll_blksize_fops },
+ { .name = "kbytestotal",
+ .fops = &ll_kbytestotal_fops },
+ { .name = "kbytesfree",
+ .fops = &ll_kbytesfree_fops },
+ { .name = "kbytesavail",
+ .fops = &ll_kbytesavail_fops },
+ { .name = "filestotal",
+ .fops = &ll_filestotal_fops },
+ { .name = "filesfree",
+ .fops = &ll_filesfree_fops },
+ { .name = "client_type",
+ .fops = &ll_client_type_fops },
+ { .name = "max_read_ahead_mb",
+ .fops = &ll_max_readahead_mb_fops },
+ { .name = "max_read_ahead_per_file_mb",
+ .fops = &ll_max_readahead_per_file_mb_fops },
+ { .name = "max_read_ahead_whole_mb",
+ .fops = &ll_max_read_ahead_whole_mb_fops },
+ { .name = "max_cached_mb",
+ .fops = &ll_max_cached_mb_fops },
+ { .name = "checksum_pages",
+ .fops = &ll_checksum_fops },
+ { .name = "stats_track_pid",
+ .fops = &ll_track_pid_fops },
+ { .name = "stats_track_ppid",
+ .fops = &ll_track_ppid_fops },
+ { .name = "stats_track_gid",
+ .fops = &ll_track_gid_fops },
+ { .name = "statahead_max",
+ .fops = &ll_statahead_max_fops },
+ { .name = "statahead_agl",
+ .fops = &ll_statahead_agl_fops },
+ { .name = "statahead_stats",
+ .fops = &ll_statahead_stats_fops },
+ { .name = "lazystatfs",
+ .fops = &ll_lazystatfs_fops },
+ { .name = "max_easize",
+ .fops = &ll_max_easize_fops },
+ { .name = "default_easize",
+ .fops = &ll_default_easize_fops },
+ { .name = "sbi_flags",
+ .fops = &ll_sbi_flags_fops },
+ { .name = "xattr_cache",
+ .fops = &ll_xattr_cache_fops },
+ { .name = "unstable_stats",
+ .fops = &ll_unstable_stats_fops },
+ { .name = "root_squash",
+ .fops = &ll_root_squash_fops },
+ { .name = "nosquash_nids",
+ .fops = &ll_nosquash_nids_fops },
+ { NULL }
};
#define MAX_STRING_SIZE 128
-struct llite_file_opcode {
+static const struct llite_file_opcode {
__u32 opcode;
__u32 type;
const char *opname;
/* file operation */
{ LPROC_LL_DIRTY_HITS, LPROCFS_TYPE_REGS, "dirty_pages_hits" },
{ LPROC_LL_DIRTY_MISSES, LPROCFS_TYPE_REGS, "dirty_pages_misses" },
- { LPROC_LL_WB_WRITEPAGE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
- "writeback_from_writepage" },
- { LPROC_LL_WB_PRESSURE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
- "writeback_from_pressure" },
- { LPROC_LL_WB_OK, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
- "writeback_ok_pages" },
- { LPROC_LL_WB_FAIL, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
- "writeback_failed_pages" },
{ LPROC_LL_READ_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
"read_bytes" },
{ LPROC_LL_WRITE_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
"brw_read" },
{ LPROC_LL_BRW_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
"brw_write" },
-
+ { LPROC_LL_OSC_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
+ "osc_read" },
+ { LPROC_LL_OSC_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
+ "osc_write" },
{ LPROC_LL_IOCTL, LPROCFS_TYPE_REGS, "ioctl" },
{ LPROC_LL_OPEN, LPROCFS_TYPE_REGS, "open" },
{ LPROC_LL_RELEASE, LPROCFS_TYPE_REGS, "close" },
{ LPROC_LL_MAP, LPROCFS_TYPE_REGS, "mmap" },
{ LPROC_LL_LLSEEK, LPROCFS_TYPE_REGS, "seek" },
{ LPROC_LL_FSYNC, LPROCFS_TYPE_REGS, "fsync" },
+ { LPROC_LL_READDIR, LPROCFS_TYPE_REGS, "readdir" },
/* inode operation */
{ LPROC_LL_SETATTR, LPROCFS_TYPE_REGS, "setattr" },
{ LPROC_LL_TRUNC, LPROCFS_TYPE_REGS, "truncate" },
- { LPROC_LL_LOCKLESS_TRUNC, LPROCFS_TYPE_REGS, "lockless_truncate"},
{ LPROC_LL_FLOCK, LPROCFS_TYPE_REGS, "flock" },
{ LPROC_LL_GETATTR, LPROCFS_TYPE_REGS, "getattr" },
+ /* dir inode operation */
+ { LPROC_LL_CREATE, LPROCFS_TYPE_REGS, "create" },
+ { LPROC_LL_LINK, LPROCFS_TYPE_REGS, "link" },
+ { LPROC_LL_UNLINK, LPROCFS_TYPE_REGS, "unlink" },
+ { LPROC_LL_SYMLINK, LPROCFS_TYPE_REGS, "symlink" },
+ { LPROC_LL_MKDIR, LPROCFS_TYPE_REGS, "mkdir" },
+ { LPROC_LL_RMDIR, LPROCFS_TYPE_REGS, "rmdir" },
+ { LPROC_LL_MKNOD, LPROCFS_TYPE_REGS, "mknod" },
+ { LPROC_LL_RENAME, LPROCFS_TYPE_REGS, "rename" },
/* special inode operation */
{ LPROC_LL_STAFS, LPROCFS_TYPE_REGS, "statfs" },
{ LPROC_LL_ALLOC_INODE, LPROCFS_TYPE_REGS, "alloc_inode" },
{ LPROC_LL_SETXATTR, LPROCFS_TYPE_REGS, "setxattr" },
{ LPROC_LL_GETXATTR, LPROCFS_TYPE_REGS, "getxattr" },
+ { LPROC_LL_GETXATTR_HITS, LPROCFS_TYPE_REGS, "getxattr_hits" },
{ LPROC_LL_LISTXATTR, LPROCFS_TYPE_REGS, "listxattr" },
{ LPROC_LL_REMOVEXATTR, LPROCFS_TYPE_REGS, "removexattr" },
{ LPROC_LL_INODE_PERM, LPROCFS_TYPE_REGS, "inode_permission" },
- { LPROC_LL_DIRECT_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
- "direct_read" },
- { LPROC_LL_DIRECT_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES,
- "direct_write" },
- { LPROC_LL_LOCKLESS_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
- "lockless_read_bytes" },
- { LPROC_LL_LOCKLESS_WRITE, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES,
- "lockless_write_bytes" },
-
};
void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count)
sbi->ll_stats_track_id == current->pid)
lprocfs_counter_add(sbi->ll_stats, op, count);
else if (sbi->ll_stats_track_type == STATS_TRACK_PPID &&
- sbi->ll_stats_track_id == current->p_pptr->pid)
- lprocfs_counter_add(sbi->ll_stats, op, count);
- else if (sbi->ll_stats_track_type == STATS_TRACK_GID &&
- sbi->ll_stats_track_id == current->gid)
+ sbi->ll_stats_track_id == current->parent->pid)
lprocfs_counter_add(sbi->ll_stats, op, count);
+ else if (sbi->ll_stats_track_type == STATS_TRACK_GID &&
+ sbi->ll_stats_track_id ==
+ from_kgid(&init_user_ns, current_gid()))
+ lprocfs_counter_add(sbi->ll_stats, op, count);
}
EXPORT_SYMBOL(ll_stats_ops_tally);
+static const char *ra_stat_string[] = {
+ [RA_STAT_HIT] = "hits",
+ [RA_STAT_MISS] = "misses",
+ [RA_STAT_DISTANT_READPAGE] = "readpage not consecutive",
+ [RA_STAT_MISS_IN_WINDOW] = "miss inside window",
+ [RA_STAT_FAILED_GRAB_PAGE] = "failed grab_cache_page",
+ [RA_STAT_FAILED_MATCH] = "failed lock match",
+ [RA_STAT_DISCARDED] = "read but discarded",
+ [RA_STAT_ZERO_LEN] = "zero length file",
+ [RA_STAT_ZERO_WINDOW] = "zero size window",
+ [RA_STAT_EOF] = "read-ahead to EOF",
+ [RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue",
+ [RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page",
+ [RA_STAT_FAILED_REACH_END] = "failed to reach end"
+};
+
+LPROC_SEQ_FOPS_RO_TYPE(llite, name);
+LPROC_SEQ_FOPS_RO_TYPE(llite, uuid);
+
int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
struct super_block *sb, char *osc, char *mdc)
{
- struct lprocfs_vars lvars[2];
- struct lustre_sb_info *lsi = s2lsi(sb);
- struct ll_sb_info *sbi = ll_s2sbi(sb);
- struct obd_device *obd;
- char name[MAX_STRING_SIZE + 1], *ptr;
- int err, id, len;
- struct proc_dir_entry *entry;
- ENTRY;
-
- memset(lvars, 0, sizeof(lvars));
-
- name[MAX_STRING_SIZE] = '\0';
- lvars[0].name = name;
-
- LASSERT(sbi != NULL);
- LASSERT(mdc != NULL);
- LASSERT(osc != NULL);
-
- /* Get fsname */
- len = strlen(lsi->lsi_lmd->lmd_profile);
- ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
- if (ptr && (strcmp(ptr, "-client") == 0))
- len -= 7;
-
- /* Mount info */
- snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len,
- lsi->lsi_lmd->lmd_profile, sb);
-
- sbi->ll_proc_root = lprocfs_register(name, parent, NULL, NULL);
- if (IS_ERR(sbi->ll_proc_root)) {
- err = PTR_ERR(sbi->ll_proc_root);
- sbi->ll_proc_root = NULL;
- RETURN(err);
- }
+ struct lprocfs_vars lvars[2];
+ struct lustre_sb_info *lsi = s2lsi(sb);
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ struct obd_device *obd;
+ struct proc_dir_entry *dir;
+ char name[MAX_STRING_SIZE + 1], *ptr;
+ int err, id, len, rc;
+ ENTRY;
+
+ memset(lvars, 0, sizeof(lvars));
+
+ name[MAX_STRING_SIZE] = '\0';
+ lvars[0].name = name;
+
+ LASSERT(sbi != NULL);
+ LASSERT(mdc != NULL);
+ LASSERT(osc != NULL);
+
+ /* Get fsname */
+ len = strlen(lsi->lsi_lmd->lmd_profile);
+ ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-');
+ if (ptr && (strcmp(ptr, "-client") == 0))
+ len -= 7;
+
+ /* Mount info */
+ snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len,
+ lsi->lsi_lmd->lmd_profile, sb);
+
+ sbi->ll_proc_root = lprocfs_register(name, parent, NULL, NULL);
+ if (IS_ERR(sbi->ll_proc_root)) {
+ err = PTR_ERR(sbi->ll_proc_root);
+ sbi->ll_proc_root = NULL;
+ RETURN(err);
+ }
+
+ rc = lprocfs_seq_create(sbi->ll_proc_root, "dump_page_cache", 0444,
+ &vvp_dump_pgcache_file_ops, sbi);
+ if (rc)
+ CWARN("Error adding the dump_page_cache file\n");
+
+ rc = lprocfs_seq_create(sbi->ll_proc_root, "extents_stats", 0644,
+ &ll_rw_extents_stats_fops, sbi);
+ if (rc)
+ CWARN("Error adding the extent_stats file\n");
- entry = create_proc_entry("dump_page_cache", 0444, sbi->ll_proc_root);
- if (entry == NULL)
- GOTO(out, err = -ENOMEM);
- entry->proc_fops = &llite_dump_pgcache_fops;
- entry->data = sbi;
+ rc = lprocfs_seq_create(sbi->ll_proc_root, "extents_stats_per_process",
+ 0644, &ll_rw_extents_stats_pp_fops, sbi);
+ if (rc)
+ CWARN("Error adding the extents_stats_per_process file\n");
- entry = create_proc_entry("read_ahead_stats", 0644, sbi->ll_proc_root);
- if (entry == NULL)
- GOTO(out, err = -ENOMEM);
- entry->proc_fops = &ll_ra_stats_fops;
- entry->data = sbi;
-
- entry = create_proc_entry("extents_stats", 0644, sbi->ll_proc_root);
- if (entry == NULL)
- GOTO(out, err = -ENOMEM);
- entry->proc_fops = &ll_rw_extents_stats_fops;
- entry->data = sbi;
-
- entry = create_proc_entry("extents_stats_per_process", 0644,
- sbi->ll_proc_root);
- if (entry == NULL)
- GOTO(out, err = -ENOMEM);
- entry->proc_fops = &ll_rw_extents_stats_pp_fops;
- entry->data = sbi;
-
- entry = create_proc_entry("offset_stats", 0644, sbi->ll_proc_root);
- if (entry == NULL)
- GOTO(out, err = -ENOMEM);
- entry->proc_fops = &ll_rw_offset_stats_fops;
- entry->data = sbi;
+ rc = lprocfs_seq_create(sbi->ll_proc_root, "offset_stats", 0644,
+ &ll_rw_offset_stats_fops, sbi);
+ if (rc)
+ CWARN("Error adding the offset_stats file\n");
/* File operations stats */
- sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES,
- LPROCFS_STATS_FLAG_PERCPU);
+ sbi->ll_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES,
+ LPROCFS_STATS_FLAG_NONE);
if (sbi->ll_stats == NULL)
GOTO(out, err = -ENOMEM);
/* do counter init */
if (err)
GOTO(out, err);
- err = lprocfs_add_vars(sbi->ll_proc_root, lprocfs_llite_obd_vars, sb);
+ sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string),
+ LPROCFS_STATS_FLAG_NONE);
+ if (sbi->ll_ra_stats == NULL)
+ GOTO(out, err = -ENOMEM);
+
+ for (id = 0; id < ARRAY_SIZE(ra_stat_string); id++)
+ lprocfs_counter_init(sbi->ll_ra_stats, id, 0,
+ ra_stat_string[id], "pages");
+ err = lprocfs_register_stats(sbi->ll_proc_root, "read_ahead_stats",
+ sbi->ll_ra_stats);
if (err)
GOTO(out, err);
- /* MDC info */
- obd = class_name2obd(mdc);
- LASSERT(obd != NULL);
- LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
- LASSERT(obd->obd_type->typ_name != NULL);
+ err = lprocfs_add_vars(sbi->ll_proc_root, lprocfs_llite_obd_vars, sb);
+ if (err)
+ GOTO(out, err);
- snprintf(name, MAX_STRING_SIZE, "%s/common_name",
- obd->obd_type->typ_name);
- lvars[0].read_fptr = lprocfs_rd_name;
- err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
- if (err)
- GOTO(out, err);
+ /* MDC info */
+ obd = class_name2obd(mdc);
- snprintf(name, MAX_STRING_SIZE, "%s/uuid", obd->obd_type->typ_name);
- lvars[0].read_fptr = lprocfs_rd_uuid;
- err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
- if (err)
- GOTO(out, err);
+ LASSERT(obd != NULL);
+ LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
+ LASSERT(obd->obd_type->typ_name != NULL);
- /* OSC */
- obd = class_name2obd(osc);
+ dir = proc_mkdir(obd->obd_type->typ_name, sbi->ll_proc_root);
+ if (dir == NULL)
+ GOTO(out, err = -ENOMEM);
- LASSERT(obd != NULL);
- LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
- LASSERT(obd->obd_type->typ_name != NULL);
+ snprintf(name, MAX_STRING_SIZE, "common_name");
+ lvars[0].fops = &llite_name_fops;
+ err = lprocfs_add_vars(dir, lvars, obd);
+ if (err)
+ GOTO(out, err);
- snprintf(name, MAX_STRING_SIZE, "%s/common_name",
- obd->obd_type->typ_name);
- lvars[0].read_fptr = lprocfs_rd_name;
- err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
- if (err)
- GOTO(out, err);
+ snprintf(name, MAX_STRING_SIZE, "uuid");
+ lvars[0].fops = &llite_uuid_fops;
+ err = lprocfs_add_vars(dir, lvars, obd);
+ if (err)
+ GOTO(out, err);
+
+ /* OSC */
+ obd = class_name2obd(osc);
- snprintf(name, MAX_STRING_SIZE, "%s/uuid", obd->obd_type->typ_name);
- lvars[0].read_fptr = lprocfs_rd_uuid;
- err = lprocfs_add_vars(sbi->ll_proc_root, lvars, obd);
+ LASSERT(obd != NULL);
+ LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC);
+ LASSERT(obd->obd_type->typ_name != NULL);
+
+ dir = proc_mkdir(obd->obd_type->typ_name, sbi->ll_proc_root);
+ if (dir == NULL)
+ GOTO(out, err = -ENOMEM);
+
+ snprintf(name, MAX_STRING_SIZE, "common_name");
+ lvars[0].fops = &llite_name_fops;
+ err = lprocfs_add_vars(dir, lvars, obd);
+ if (err)
+ GOTO(out, err);
+
+ snprintf(name, MAX_STRING_SIZE, "uuid");
+ lvars[0].fops = &llite_uuid_fops;
+ err = lprocfs_add_vars(dir, lvars, obd);
out:
- if (err) {
- lprocfs_remove(&sbi->ll_proc_root);
- lprocfs_free_stats(&sbi->ll_stats);
- }
- RETURN(err);
+ if (err) {
+ lprocfs_remove(&sbi->ll_proc_root);
+ lprocfs_free_stats(&sbi->ll_ra_stats);
+ lprocfs_free_stats(&sbi->ll_stats);
+ }
+ RETURN(err);
}
void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi)
{
if (sbi->ll_proc_root) {
lprocfs_remove(&sbi->ll_proc_root);
+ lprocfs_free_stats(&sbi->ll_ra_stats);
lprocfs_free_stats(&sbi->ll_stats);
}
}
#undef MAX_STRING_SIZE
-#define seq_page_flag(seq, page, flag, has_flags) do { \
- if (test_bit(PG_##flag, &(page)->flags)) { \
- if (!has_flags) \
- has_flags = 1; \
- else \
- seq_putc(seq, '|'); \
- seq_puts(seq, #flag); \
- } \
- } while(0);
-
-static void *llite_dump_pgcache_seq_start(struct seq_file *seq, loff_t *pos)
-{
- struct ll_async_page *dummy_llap = seq->private;
-
- if (dummy_llap->llap_magic == 2)
- return NULL;
-
- return (void *)1;
-}
-
-static int llite_dump_pgcache_seq_show(struct seq_file *seq, void *v)
-{
- struct ll_async_page *llap, *dummy_llap = seq->private;
- struct ll_sb_info *sbi = dummy_llap->llap_cookie;
-
- /* 2.4 doesn't seem to have SEQ_START_TOKEN, so we implement
- * it in our own state */
- if (dummy_llap->llap_magic == 0) {
- seq_printf(seq, "gener | llap cookie origin wq du wb | page "
- "inode index count [ page flags ]\n");
- return 0;
- }
-
- spin_lock(&sbi->ll_lock);
-
- llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_pglist_item);
- if (llap != NULL) {
- int has_flags = 0;
- struct page *page = llap->llap_page;
-
- LASSERTF(llap->llap_origin < LLAP__ORIGIN_MAX, "%u\n",
- llap->llap_origin);
-
- seq_printf(seq," %5lu | %p %p %s %s %s %s | %p %lu/%u(%p) "
- "%lu %u [",
- sbi->ll_pglist_gen,
- llap, llap->llap_cookie,
- llap_origins[llap->llap_origin],
- llap->llap_write_queued ? "wq" : "- ",
- llap->llap_defer_uptodate ? "du" : "- ",
- PageWriteback(page) ? "wb" : "-",
- page, page->mapping->host->i_ino,
- page->mapping->host->i_generation,
- page->mapping->host, page->index,
- page_count(page));
- seq_page_flag(seq, page, locked, has_flags);
- seq_page_flag(seq, page, error, has_flags);
- seq_page_flag(seq, page, referenced, has_flags);
- seq_page_flag(seq, page, uptodate, has_flags);
- seq_page_flag(seq, page, dirty, has_flags);
-#if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,12))
- seq_page_flag(seq, page, highmem, has_flags);
-#endif
- seq_page_flag(seq, page, writeback, has_flags);
- if (!has_flags)
- seq_puts(seq, "-]\n");
- else
- seq_puts(seq, "]\n");
- }
-
- spin_unlock(&sbi->ll_lock);
-
- return 0;
-}
-
-static void *llite_dump_pgcache_seq_next(struct seq_file *seq, void *v,
- loff_t *pos)
-{
- struct ll_async_page *llap, *dummy_llap = seq->private;
- struct ll_sb_info *sbi = dummy_llap->llap_cookie;
-
- /* bail if we just displayed the banner */
- if (dummy_llap->llap_magic == 0) {
- dummy_llap->llap_magic = 1;
- return dummy_llap;
- }
-
- /* we've just displayed the llap that is after us in the list.
- * we advance to a position beyond it, returning null if there
- * isn't another llap in the list beyond that new position. */
- spin_lock(&sbi->ll_lock);
- llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_pglist_item);
- list_del_init(&dummy_llap->llap_pglist_item);
- if (llap) {
- list_add(&dummy_llap->llap_pglist_item,&llap->llap_pglist_item);
- llap =llite_pglist_next_llap(sbi,&dummy_llap->llap_pglist_item);
- }
- spin_unlock(&sbi->ll_lock);
-
- ++*pos;
- if (llap == NULL) {
- dummy_llap->llap_magic = 2;
- return NULL;
- }
- return dummy_llap;
-}
-
-static void null_stop(struct seq_file *seq, void *v)
-{
-}
-
-struct seq_operations llite_dump_pgcache_seq_sops = {
- .start = llite_dump_pgcache_seq_start,
- .stop = null_stop,
- .next = llite_dump_pgcache_seq_next,
- .show = llite_dump_pgcache_seq_show,
-};
-
-/* we're displaying llaps in a list_head list. we don't want to hold a lock
- * while we walk the entire list, and we don't want to have to seek into
- * the right position in the list as an app advances with many syscalls. we
- * allocate a dummy llap and hang it off file->private. its position in
- * the list records where the app is currently displaying. this way our
- * seq .start and .stop don't actually do anything. .next returns null
- * when the dummy hits the end of the list which eventually leads to .release
- * where we tear down. this kind of displaying is super-racey, so we put
- * a generation counter on the list so the output shows when the list
- * changes between reads.
- */
-static int llite_dump_pgcache_seq_open(struct inode *inode, struct file *file)
-{
- struct proc_dir_entry *dp = PDE(inode);
- struct ll_async_page *dummy_llap;
- struct seq_file *seq;
- struct ll_sb_info *sbi = dp->data;
- int rc = -ENOMEM;
-
- LPROCFS_ENTRY_AND_CHECK(dp);
-
- OBD_ALLOC_PTR_WAIT(dummy_llap);
- if (dummy_llap == NULL)
- GOTO(out, rc);
- dummy_llap->llap_page = NULL;
- dummy_llap->llap_cookie = sbi;
- dummy_llap->llap_magic = 0;
-
- rc = seq_open(file, &llite_dump_pgcache_seq_sops);
- if (rc) {
- OBD_FREE(dummy_llap, sizeof(*dummy_llap));
- GOTO(out, rc);
- }
- seq = file->private_data;
- seq->private = dummy_llap;
-
- spin_lock(&sbi->ll_lock);
- list_add(&dummy_llap->llap_pglist_item, &sbi->ll_pglist);
- spin_unlock(&sbi->ll_lock);
-
-out:
- if (rc)
- LPROCFS_EXIT();
- return rc;
-}
-
-static int llite_dump_pgcache_seq_release(struct inode *inode,
- struct file *file)
-{
- struct seq_file *seq = file->private_data;
- struct ll_async_page *dummy_llap = seq->private;
- struct ll_sb_info *sbi = dummy_llap->llap_cookie;
-
- spin_lock(&sbi->ll_lock);
- if (!list_empty(&dummy_llap->llap_pglist_item))
- list_del_init(&dummy_llap->llap_pglist_item);
- spin_unlock(&sbi->ll_lock);
- OBD_FREE(dummy_llap, sizeof(*dummy_llap));
-
- return lprocfs_seq_release(inode, file);
-}
-
-struct file_operations llite_dump_pgcache_fops = {
- .owner = THIS_MODULE,
- .open = llite_dump_pgcache_seq_open,
- .read = seq_read,
- .release = llite_dump_pgcache_seq_release,
-};
-
-static int ll_ra_stats_seq_show(struct seq_file *seq, void *v)
-{
- struct timeval now;
- struct ll_sb_info *sbi = seq->private;
- struct ll_ra_info *ra = &sbi->ll_ra_info;
- int i;
- static char *ra_stat_strings[] = {
- [RA_STAT_HIT] = "hits",
- [RA_STAT_MISS] = "misses",
- [RA_STAT_DISTANT_READPAGE] = "readpage not consecutive",
- [RA_STAT_MISS_IN_WINDOW] = "miss inside window",
- [RA_STAT_FAILED_GRAB_PAGE] = "failed grab_cache_page",
- [RA_STAT_FAILED_MATCH] = "failed lock match",
- [RA_STAT_DISCARDED] = "read but discarded",
- [RA_STAT_ZERO_LEN] = "zero length file",
- [RA_STAT_ZERO_WINDOW] = "zero size window",
- [RA_STAT_EOF] = "read-ahead to EOF",
- [RA_STAT_MAX_IN_FLIGHT] = "hit max r-a issue",
- [RA_STAT_WRONG_GRAB_PAGE] = "wrong page from grab_cache_page",
- };
-
- do_gettimeofday(&now);
-
- spin_lock(&sbi->ll_lock);
-
- seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
- now.tv_sec, now.tv_usec);
- seq_printf(seq, "pending issued pages: %lu\n",
- ra->ra_cur_pages);
-
- for(i = 0; i < _NR_RA_STAT; i++)
- seq_printf(seq, "%-25s %lu\n", ra_stat_strings[i],
- ra->ra_stats[i]);
-
- spin_unlock(&sbi->ll_lock);
-
- return 0;
-}
-
-static ssize_t ll_ra_stats_seq_write(struct file *file, const char *buf,
- size_t len, loff_t *off)
-{
- struct seq_file *seq = file->private_data;
- struct ll_sb_info *sbi = seq->private;
- struct ll_ra_info *ra = &sbi->ll_ra_info;
-
- spin_lock(&sbi->ll_lock);
- memset(ra->ra_stats, 0, sizeof(ra->ra_stats));
- spin_unlock(&sbi->ll_lock);
-
- return len;
-}
-
-LPROC_SEQ_FOPS(ll_ra_stats);
-
#define pct(a,b) (b ? a * 100 / b : 0)
static void ll_display_extents_info(struct ll_rw_extents_info *io_extents,
struct timeval now;
struct ll_sb_info *sbi = seq->private;
struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
- int k;
+ int k;
- do_gettimeofday(&now);
+ do_gettimeofday(&now);
- if (!sbi->ll_rw_stats_on) {
- seq_printf(seq, "Disabled\n"
- "Write anything in this file to activate\n");
+ if (!sbi->ll_rw_stats_on) {
+ seq_printf(seq, "disabled\n"
+ "write anything in this file to activate, "
+ "then 0 or \"[D/d]isabled\" to deactivate\n");
return 0;
}
seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
now.tv_sec, now.tv_usec);
seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write");
- seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
+ seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
"extents", "calls", "%", "cum%",
"calls", "%", "cum%");
- spin_lock(&sbi->ll_pp_extent_lock);
- for(k = 0; k < LL_PROCESS_HIST_MAX; k++) {
- if(io_extents->pp_extents[k].pid != 0) {
- seq_printf(seq, "\nPID: %d\n",
- io_extents->pp_extents[k].pid);
- ll_display_extents_info(io_extents, seq, k);
- }
- }
- spin_unlock(&sbi->ll_pp_extent_lock);
- return 0;
+ spin_lock(&sbi->ll_pp_extent_lock);
+ for (k = 0; k < LL_PROCESS_HIST_MAX; k++) {
+ if (io_extents->pp_extents[k].pid != 0) {
+ seq_printf(seq, "\nPID: %d\n",
+ io_extents->pp_extents[k].pid);
+ ll_display_extents_info(io_extents, seq, k);
+ }
+ }
+ spin_unlock(&sbi->ll_pp_extent_lock);
+ return 0;
}
static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file,
- const char *buf, size_t len,
- loff_t *off)
+ const char __user *buf,
+ size_t len,
+ loff_t *off)
{
- struct seq_file *seq = file->private_data;
- struct ll_sb_info *sbi = seq->private;
- struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
- int i;
-
- sbi->ll_rw_stats_on = 1;
- spin_lock(&sbi->ll_pp_extent_lock);
- for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
- io_extents->pp_extents[i].pid = 0;
- lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
- lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
- }
- spin_unlock(&sbi->ll_pp_extent_lock);
- return len;
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+ int i;
+ int value = 1, rc = 0;
+
+ if (len == 0)
+ return -EINVAL;
+
+ rc = lprocfs_write_helper(buf, len, &value);
+ if (rc < 0 && len < 16) {
+ char kernbuf[16];
+
+ if (copy_from_user(kernbuf, buf, len))
+ return -EFAULT;
+ kernbuf[len] = 0;
+
+ if (kernbuf[len - 1] == '\n')
+ kernbuf[len - 1] = 0;
+
+ if (strcmp(kernbuf, "disabled") == 0 ||
+ strcmp(kernbuf, "Disabled") == 0)
+ value = 0;
+ }
+
+ if (value == 0)
+ sbi->ll_rw_stats_on = 0;
+ else
+ sbi->ll_rw_stats_on = 1;
+
+ spin_lock(&sbi->ll_pp_extent_lock);
+ for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
+ io_extents->pp_extents[i].pid = 0;
+ lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
+ lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
+ }
+ spin_unlock(&sbi->ll_pp_extent_lock);
+ return len;
}
LPROC_SEQ_FOPS(ll_rw_extents_stats_pp);
static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v)
{
- struct timeval now;
- struct ll_sb_info *sbi = seq->private;
- struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+ struct timeval now;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
- do_gettimeofday(&now);
+ do_gettimeofday(&now);
- if (!sbi->ll_rw_stats_on) {
- seq_printf(seq, "Disabled\n"
- "Write anything in this file to activate\n");
+ if (!sbi->ll_rw_stats_on) {
+ seq_printf(seq, "disabled\n"
+ "write anything in this file to activate, "
+ "then 0 or \"[D/d]isabled\" to deactivate\n");
return 0;
}
seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
now.tv_sec, now.tv_usec);
seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write");
- seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
+ seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n",
"extents", "calls", "%", "cum%",
"calls", "%", "cum%");
- spin_lock(&sbi->ll_lock);
- ll_display_extents_info(io_extents, seq, LL_PROCESS_HIST_MAX);
- spin_unlock(&sbi->ll_lock);
+ spin_lock(&sbi->ll_lock);
+ ll_display_extents_info(io_extents, seq, LL_PROCESS_HIST_MAX);
+ spin_unlock(&sbi->ll_lock);
- return 0;
+ return 0;
}
-static ssize_t ll_rw_extents_stats_seq_write(struct file *file, const char *buf,
- size_t len, loff_t *off)
+static ssize_t ll_rw_extents_stats_seq_write(struct file *file,
+ const char __user *buf,
+ size_t len, loff_t *off)
{
- struct seq_file *seq = file->private_data;
- struct ll_sb_info *sbi = seq->private;
- struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
- int i;
-
- sbi->ll_rw_stats_on = 1;
- spin_lock(&sbi->ll_pp_extent_lock);
- for(i = 0; i <= LL_PROCESS_HIST_MAX; i++)
- {
- io_extents->pp_extents[i].pid = 0;
- lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
- lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
- }
- spin_unlock(&sbi->ll_pp_extent_lock);
-
- return len;
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info;
+ int i;
+ int value = 1, rc = 0;
+
+ if (len == 0)
+ return -EINVAL;
+
+ rc = lprocfs_write_helper(buf, len, &value);
+ if (rc < 0 && len < 16) {
+ char kernbuf[16];
+
+ if (copy_from_user(kernbuf, buf, len))
+ return -EFAULT;
+ kernbuf[len] = 0;
+
+ if (kernbuf[len - 1] == '\n')
+ kernbuf[len - 1] = 0;
+
+ if (strcmp(kernbuf, "disabled") == 0 ||
+ strcmp(kernbuf, "Disabled") == 0)
+ value = 0;
+ }
+
+ if (value == 0)
+ sbi->ll_rw_stats_on = 0;
+ else
+ sbi->ll_rw_stats_on = 1;
+
+ spin_lock(&sbi->ll_pp_extent_lock);
+ for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
+ io_extents->pp_extents[i].pid = 0;
+ lprocfs_oh_clear(&io_extents->pp_extents[i].pp_r_hist);
+ lprocfs_oh_clear(&io_extents->pp_extents[i].pp_w_hist);
+ }
+ spin_unlock(&sbi->ll_pp_extent_lock);
+
+ return len;
}
-
LPROC_SEQ_FOPS(ll_rw_extents_stats);
-void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid, struct file
- *file, size_t count, int rw)
+void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid,
+ struct ll_file_data *file, loff_t pos,
+ size_t count, int rw)
{
int i, cur = -1;
struct ll_rw_process_info *process;
process = sbi->ll_rw_process_info;
offset = sbi->ll_rw_offset_info;
- spin_lock(&sbi->ll_pp_extent_lock);
+ spin_lock(&sbi->ll_pp_extent_lock);
/* Extent statistics */
for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
if(io_extents->pp_extents[i].pid == pid) {
if (cur == -1) {
/* new process */
- sbi->ll_extent_process_count =
+ sbi->ll_extent_process_count =
(sbi->ll_extent_process_count + 1) % LL_PROCESS_HIST_MAX;
cur = sbi->ll_extent_process_count;
io_extents->pp_extents[cur].pid = pid;
lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist);
}
- for(i = 0; (count >= (1 << LL_HIST_START << i)) &&
+ for(i = 0; (count >= (1 << LL_HIST_START << i)) &&
(i < (LL_HIST_MAX - 1)); i++);
if (rw == 0) {
io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++;
io_extents->pp_extents[cur].pp_w_hist.oh_buckets[i]++;
io_extents->pp_extents[LL_PROCESS_HIST_MAX].pp_w_hist.oh_buckets[i]++;
}
- spin_unlock(&sbi->ll_pp_extent_lock);
+ spin_unlock(&sbi->ll_pp_extent_lock);
- spin_lock(&sbi->ll_process_lock);
+ spin_lock(&sbi->ll_process_lock);
/* Offset statistics */
for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
if (process[i].rw_pid == pid) {
if (process[i].rw_last_file != file) {
- process[i].rw_range_start = file->f_pos;
- process[i].rw_last_file_pos =
- file->f_pos + count;
+ process[i].rw_range_start = pos;
+ process[i].rw_last_file_pos = pos + count;
process[i].rw_smallest_extent = count;
process[i].rw_largest_extent = count;
process[i].rw_offset = 0;
process[i].rw_last_file = file;
- spin_unlock(&sbi->ll_process_lock);
+ spin_unlock(&sbi->ll_process_lock);
return;
}
- if (process[i].rw_last_file_pos != file->f_pos) {
+ if (process[i].rw_last_file_pos != pos) {
*off_count =
(*off_count + 1) % LL_OFFSET_HIST_MAX;
offset[*off_count].rw_op = process[i].rw_op;
offset[*off_count].rw_offset =
process[i].rw_offset;
process[i].rw_op = rw;
- process[i].rw_range_start = file->f_pos;
+ process[i].rw_range_start = pos;
process[i].rw_smallest_extent = count;
process[i].rw_largest_extent = count;
- process[i].rw_offset = file->f_pos -
+ process[i].rw_offset = pos -
process[i].rw_last_file_pos;
}
if(process[i].rw_smallest_extent > count)
process[i].rw_smallest_extent = count;
if(process[i].rw_largest_extent < count)
process[i].rw_largest_extent = count;
- process[i].rw_last_file_pos = file->f_pos + count;
- spin_unlock(&sbi->ll_process_lock);
+ process[i].rw_last_file_pos = pos + count;
+ spin_unlock(&sbi->ll_process_lock);
return;
}
}
*process_count = (*process_count + 1) % LL_PROCESS_HIST_MAX;
process[*process_count].rw_pid = pid;
process[*process_count].rw_op = rw;
- process[*process_count].rw_range_start = file->f_pos;
- process[*process_count].rw_last_file_pos = file->f_pos + count;
+ process[*process_count].rw_range_start = pos;
+ process[*process_count].rw_last_file_pos = pos + count;
process[*process_count].rw_smallest_extent = count;
process[*process_count].rw_largest_extent = count;
process[*process_count].rw_offset = 0;
process[*process_count].rw_last_file = file;
- spin_unlock(&sbi->ll_process_lock);
+ spin_unlock(&sbi->ll_process_lock);
}
-char lpszt[] = LPSZ;
-
static int ll_rw_offset_stats_seq_show(struct seq_file *seq, void *v)
{
struct timeval now;
struct ll_sb_info *sbi = seq->private;
struct ll_rw_process_info *offset = sbi->ll_rw_offset_info;
struct ll_rw_process_info *process = sbi->ll_rw_process_info;
- char format[50];
- int i;
+ int i;
- do_gettimeofday(&now);
+ do_gettimeofday(&now);
- if (!sbi->ll_rw_stats_on) {
- seq_printf(seq, "Disabled\n"
- "Write anything in this file to activate\n");
+ if (!sbi->ll_rw_stats_on) {
+ seq_printf(seq, "disabled\n"
+ "write anything in this file to activate, "
+ "then 0 or \"[D/d]isabled\" to deactivate\n");
return 0;
}
- spin_lock(&sbi->ll_process_lock);
+ spin_lock(&sbi->ll_process_lock);
seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n",
now.tv_sec, now.tv_usec);
seq_printf(seq, "%3s %10s %14s %14s %17s %17s %14s\n",
"R/W", "PID", "RANGE START", "RANGE END",
"SMALLEST EXTENT", "LARGEST EXTENT", "OFFSET");
- sprintf(format, "%s%s%s%s%s\n",
- "%3c %10d %14Lu %14Lu %17", lpszt+1, " %17", lpszt+1, " %14Ld");
- /* We stored the discontiguous offsets here; print them first */
- for(i = 0; i < LL_OFFSET_HIST_MAX; i++) {
- if (offset[i].rw_pid != 0)
- /* Is there a way to snip the '%' off of LPSZ? */
- seq_printf(seq, format,
- offset[i].rw_op ? 'W' : 'R',
- offset[i].rw_pid,
- offset[i].rw_range_start,
- offset[i].rw_range_end,
- offset[i].rw_smallest_extent,
- offset[i].rw_largest_extent,
- offset[i].rw_offset);
- }
- /* Then print the current offsets for each process */
- for(i = 0; i < LL_PROCESS_HIST_MAX; i++) {
- if (process[i].rw_pid != 0)
- seq_printf(seq, format,
- process[i].rw_op ? 'W' : 'R',
- process[i].rw_pid,
- process[i].rw_range_start,
- process[i].rw_last_file_pos,
- process[i].rw_smallest_extent,
- process[i].rw_largest_extent,
- process[i].rw_offset);
- }
- spin_unlock(&sbi->ll_process_lock);
- return 0;
+ /* We stored the discontiguous offsets here; print them first */
+ for (i = 0; i < LL_OFFSET_HIST_MAX; i++) {
+ if (offset[i].rw_pid != 0)
+ seq_printf(seq,
+ "%3c %10d %14Lu %14Lu %17lu %17lu %14Lu",
+ offset[i].rw_op == READ ? 'R' : 'W',
+ offset[i].rw_pid,
+ offset[i].rw_range_start,
+ offset[i].rw_range_end,
+ (unsigned long)offset[i].rw_smallest_extent,
+ (unsigned long)offset[i].rw_largest_extent,
+ offset[i].rw_offset);
+ }
+
+ /* Then print the current offsets for each process */
+ for (i = 0; i < LL_PROCESS_HIST_MAX; i++) {
+ if (process[i].rw_pid != 0)
+ seq_printf(seq,
+ "%3c %10d %14Lu %14Lu %17lu %17lu %14Lu",
+ process[i].rw_op == READ ? 'R' : 'W',
+ process[i].rw_pid,
+ process[i].rw_range_start,
+ process[i].rw_last_file_pos,
+ (unsigned long)process[i].rw_smallest_extent,
+ (unsigned long)process[i].rw_largest_extent,
+ process[i].rw_offset);
+ }
+ spin_unlock(&sbi->ll_process_lock);
+
+ return 0;
}
-static ssize_t ll_rw_offset_stats_seq_write(struct file *file, const char *buf,
- size_t len, loff_t *off)
+static ssize_t ll_rw_offset_stats_seq_write(struct file *file,
+ const char __user *buf,
+ size_t len, loff_t *off)
{
- struct seq_file *seq = file->private_data;
- struct ll_sb_info *sbi = seq->private;
- struct ll_rw_process_info *process_info = sbi->ll_rw_process_info;
- struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info;
-
- sbi->ll_rw_stats_on = 1;
-
- spin_lock(&sbi->ll_process_lock);
- sbi->ll_offset_process_count = 0;
- sbi->ll_rw_offset_entry_count = 0;
- memset(process_info, 0, sizeof(struct ll_rw_process_info) *
- LL_PROCESS_HIST_MAX);
- memset(offset_info, 0, sizeof(struct ll_rw_process_info) *
- LL_OFFSET_HIST_MAX);
- spin_unlock(&sbi->ll_process_lock);
-
- return len;
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_rw_process_info *process_info = sbi->ll_rw_process_info;
+ struct ll_rw_process_info *offset_info = sbi->ll_rw_offset_info;
+ int value = 1, rc = 0;
+
+ if (len == 0)
+ return -EINVAL;
+
+ rc = lprocfs_write_helper(buf, len, &value);
+
+ if (rc < 0 && len < 16) {
+ char kernbuf[16];
+
+ if (copy_from_user(kernbuf, buf, len))
+ return -EFAULT;
+ kernbuf[len] = 0;
+
+ if (kernbuf[len - 1] == '\n')
+ kernbuf[len - 1] = 0;
+
+ if (strcmp(kernbuf, "disabled") == 0 ||
+ strcmp(kernbuf, "Disabled") == 0)
+ value = 0;
+ }
+
+ if (value == 0)
+ sbi->ll_rw_stats_on = 0;
+ else
+ sbi->ll_rw_stats_on = 1;
+
+ spin_lock(&sbi->ll_process_lock);
+ sbi->ll_offset_process_count = 0;
+ sbi->ll_rw_offset_entry_count = 0;
+ memset(process_info, 0, sizeof(struct ll_rw_process_info) *
+ LL_PROCESS_HIST_MAX);
+ memset(offset_info, 0, sizeof(struct ll_rw_process_info) *
+ LL_OFFSET_HIST_MAX);
+ spin_unlock(&sbi->ll_process_lock);
+
+ return len;
}
LPROC_SEQ_FOPS(ll_rw_offset_stats);
-
-void lprocfs_llite_init_vars(struct lprocfs_static_vars *lvars)
-{
- lvars->module_vars = NULL;
- lvars->obd_vars = lprocfs_llite_obd_vars;
-}
-#endif /* LPROCFS */
+#endif /* CONFIG_PROC_FS */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff