| /* |
| * GPL HEADER START |
| * |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * 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. |
| * |
| * 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). |
| * |
| * 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 |
| * |
| * 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) 2011, 2012, 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 "../include/lustre_lite.h" |
| #include "../include/lprocfs_status.h" |
| #include <linux/seq_file.h> |
| #include "../include/obd_support.h" |
| |
| #include "llite_internal.h" |
| #include "vvp_internal.h" |
| |
| /* /proc/lustre/llite mount point registration */ |
| static struct file_operations ll_rw_extents_stats_fops; |
| static struct file_operations ll_rw_extents_stats_pp_fops; |
| static struct file_operations ll_rw_offset_stats_fops; |
| |
| static int ll_blksize_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = (struct super_block *)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_kbytestotal_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = (struct super_block *)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, "%llu\n", result); |
| } |
| return rc; |
| } |
| LPROC_SEQ_FOPS_RO(ll_kbytestotal); |
| |
| static int ll_kbytesfree_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = (struct super_block *)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, "%llu\n", result); |
| } |
| return rc; |
| } |
| LPROC_SEQ_FOPS_RO(ll_kbytesfree); |
| |
| static int ll_kbytesavail_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = (struct super_block *)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, "%llu\n", result); |
| } |
| return rc; |
| } |
| LPROC_SEQ_FOPS_RO(ll_kbytesavail); |
| |
| static int ll_filestotal_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = (struct super_block *)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, "%llu\n", osfs.os_files); |
| return rc; |
| } |
| LPROC_SEQ_FOPS_RO(ll_filestotal); |
| |
| static int ll_filesfree_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = (struct super_block *)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, "%llu\n", osfs.os_ffree); |
| return rc; |
| } |
| LPROC_SEQ_FOPS_RO(ll_filesfree); |
| |
| static int ll_client_type_seq_show(struct seq_file *m, void *v) |
| { |
| struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)m->private); |
| int rc; |
| |
| LASSERT(sbi != NULL); |
| |
| 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_fstype_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = (struct super_block *)m->private; |
| |
| LASSERT(sb != NULL); |
| return seq_printf(m, "%s\n", sb->s_type->name); |
| } |
| LPROC_SEQ_FOPS_RO(ll_fstype); |
| |
| static int ll_sb_uuid_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = (struct super_block *)m->private; |
| |
| 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_site_stats_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = m->private; |
| |
| /* |
| * 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_max_readahead_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; |
| |
| 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_seq_read_frac_helper(m, pages_number, mult); |
| } |
| |
| static ssize_t ll_max_readahead_mb_seq_write(struct file *file, |
| const char __user *buffer, |
| size_t count, loff_t *off) |
| { |
| struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| int mult, rc, pages_number; |
| |
| mult = 1 << (20 - PAGE_CACHE_SHIFT); |
| rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); |
| if (rc) |
| return rc; |
| |
| if (pages_number < 0 || pages_number > totalram_pages / 2) { |
| CERROR("can't set file readahead more than %lu MB\n", |
| totalram_pages >> (20 - PAGE_CACHE_SHIFT + 1)); /*1/2 of RAM*/ |
| 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_max_readahead_per_file_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; |
| |
| spin_lock(&sbi->ll_lock); |
| pages_number = sbi->ll_ra_info.ra_max_pages_per_file; |
| spin_unlock(&sbi->ll_lock); |
| |
| mult = 1 << (20 - PAGE_CACHE_SHIFT); |
| return lprocfs_seq_read_frac_helper(m, pages_number, mult); |
| } |
| |
| 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 = ((struct seq_file *)file->private_data)->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| int mult, rc, pages_number; |
| |
| mult = 1 << (20 - PAGE_CACHE_SHIFT); |
| rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); |
| if (rc) |
| return rc; |
| |
| if (pages_number < 0 || |
| pages_number > sbi->ll_ra_info.ra_max_pages) { |
| CERROR("can't set file readahead more than max_read_ahead_mb %lu MB\n", |
| sbi->ll_ra_info.ra_max_pages); |
| 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); |
| |
| static int ll_max_read_ahead_whole_mb_seq_show(struct seq_file *m, void *unused) |
| { |
| 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_ra_info.ra_max_read_ahead_whole_pages; |
| spin_unlock(&sbi->ll_lock); |
| |
| mult = 1 << (20 - PAGE_CACHE_SHIFT); |
| return lprocfs_seq_read_frac_helper(m, pages_number, mult); |
| } |
| |
| 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 super_block *sb = ((struct seq_file *)file->private_data)->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| int mult, rc, pages_number; |
| |
| mult = 1 << (20 - PAGE_CACHE_SHIFT); |
| rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); |
| 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("can't set max_read_ahead_whole_mb more than max_read_ahead_per_file_mb: %lu\n", |
| sbi->ll_ra_info.ra_max_pages_per_file >> (20 - PAGE_CACHE_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); |
| |
| 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; |
| int max_cached_mb; |
| int unused_mb; |
| |
| max_cached_mb = cache->ccc_lru_max >> shift; |
| unused_mb = atomic_read(&cache->ccc_lru_left) >> shift; |
| return seq_printf(m, |
| "users: %d\n" |
| "max_cached_mb: %d\n" |
| "used_mb: %d\n" |
| "unused_mb: %d\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 super_block *sb = ((struct seq_file *)file->private_data)->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| struct cl_client_cache *cache = &sbi->ll_cache; |
| int mult, rc, pages_number; |
| int diff = 0; |
| int nrpages = 0; |
| char kernbuf[128]; |
| |
| 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_helper(buffer, count, &pages_number, mult); |
| if (rc) |
| return rc; |
| |
| 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; |
| } |
| |
| if (sbi->ll_dt_exp == NULL) |
| return -ENODEV; |
| |
| 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_add(diff, &cache->ccc_lru_left); |
| rc = 0; |
| goto out; |
| } |
| |
| diff = -diff; |
| while (diff > 0) { |
| int tmp; |
| |
| /* reduce LRU budget from free slots. */ |
| do { |
| int ov, nv; |
| |
| ov = atomic_read(&cache->ccc_lru_left); |
| if (ov == 0) |
| break; |
| |
| nv = ov > diff ? ov - diff : 0; |
| rc = atomic_cmpxchg(&cache->ccc_lru_left, ov, nv); |
| if (likely(ov == rc)) { |
| diff -= ov - nv; |
| nrpages += ov - nv; |
| break; |
| } |
| } while (1); |
| |
| if (diff <= 0) |
| break; |
| |
| /* difficult - have to ask OSCs to drop LRU slots. */ |
| tmp = diff << 1; |
| rc = obd_set_info_async(NULL, sbi->ll_dt_exp, |
| sizeof(KEY_CACHE_LRU_SHRINK), |
| KEY_CACHE_LRU_SHRINK, |
| sizeof(tmp), &tmp, NULL); |
| if (rc < 0) |
| break; |
| } |
| |
| out: |
| if (rc >= 0) { |
| spin_lock(&sbi->ll_lock); |
| cache->ccc_lru_max = pages_number; |
| spin_unlock(&sbi->ll_lock); |
| rc = count; |
| } else { |
| atomic_add(nrpages, &cache->ccc_lru_left); |
| } |
| return rc; |
| } |
| LPROC_SEQ_FOPS(ll_max_cached_mb); |
| |
| static int ll_checksum_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_flags & LL_SBI_CHECKSUM) ? 1 : 0); |
| } |
| |
| static ssize_t ll_checksum_seq_write(struct file *file, |
| const char __user *buffer, |
| size_t count, loff_t *off) |
| { |
| struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| int val, rc; |
| |
| if (!sbi->ll_dt_exp) |
| /* Not set up yet */ |
| return -EAGAIN; |
| |
| rc = lprocfs_write_helper(buffer, count, &val); |
| if (rc) |
| return rc; |
| if (val) |
| sbi->ll_flags |= LL_SBI_CHECKSUM; |
| else |
| sbi->ll_flags &= ~LL_SBI_CHECKSUM; |
| |
| 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_max_rw_chunk_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = m->private; |
| |
| return seq_printf(m, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk); |
| } |
| |
| static ssize_t ll_max_rw_chunk_seq_write(struct file *file, |
| const char __user *buffer, |
| size_t count, loff_t *off) |
| { |
| struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
| int rc, val; |
| |
| rc = lprocfs_write_helper(buffer, count, &val); |
| if (rc) |
| return rc; |
| ll_s2sbi(sb)->ll_max_rw_chunk = val; |
| return count; |
| } |
| LPROC_SEQ_FOPS(ll_max_rw_chunk); |
| |
| 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_wr_track_id(const char __user *buffer, unsigned long count, |
| void *data, enum stats_track_type type) |
| { |
| 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; |
| } |
| |
| static int ll_track_pid_seq_show(struct seq_file *m, void *v) |
| { |
| return ll_rd_track_id(m, STATS_TRACK_PID); |
| } |
| |
| static ssize_t ll_track_pid_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_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 super_block *sb = ((struct seq_file *)file->private_data)->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| int val, rc; |
| |
| rc = lprocfs_write_helper(buffer, count, &val); |
| if (rc) |
| return rc; |
| |
| 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_statahead_agl_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_flags & LL_SBI_AGL_ENABLED ? 1 : 0); |
| } |
| |
| 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 = ((struct seq_file *)file->private_data)->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| int val, rc; |
| |
| rc = lprocfs_write_helper(buffer, count, &val); |
| if (rc) |
| return rc; |
| |
| if (val) |
| sbi->ll_flags |= LL_SBI_AGL_ENABLED; |
| else |
| sbi->ll_flags &= ~LL_SBI_AGL_ENABLED; |
| |
| return count; |
| } |
| LPROC_SEQ_FOPS(ll_statahead_agl); |
| |
| static int ll_statahead_stats_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, |
| "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_lazystatfs_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_flags & LL_SBI_LAZYSTATFS) ? 1 : 0); |
| } |
| |
| static ssize_t ll_lazystatfs_seq_write(struct file *file, |
| const char __user *buffer, |
| size_t count, loff_t *off) |
| { |
| struct super_block *sb = ((struct seq_file *)file->private_data)->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| 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_max_easize_seq_show(struct seq_file *m, void *v) |
| { |
| 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_defult_easize_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = m->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| unsigned int ealen; |
| int rc; |
| |
| rc = ll_get_default_mdsize(sbi, &ealen); |
| if (rc) |
| return rc; |
| |
| return seq_printf(m, "%u\n", ealen); |
| } |
| LPROC_SEQ_FOPS_RO(ll_defult_easize); |
| |
| static int ll_max_cookiesize_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = m->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| unsigned int cookielen; |
| int rc; |
| |
| rc = ll_get_max_cookiesize(sbi, &cookielen); |
| if (rc) |
| return rc; |
| |
| return seq_printf(m, "%u\n", cookielen); |
| } |
| LPROC_SEQ_FOPS_RO(ll_max_cookiesize); |
| |
| static int ll_defult_cookiesize_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = m->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| unsigned int cookielen; |
| int rc; |
| |
| rc = ll_get_default_cookiesize(sbi, &cookielen); |
| if (rc) |
| return rc; |
| |
| return seq_printf(m, "%u\n", cookielen); |
| } |
| LPROC_SEQ_FOPS_RO(ll_defult_cookiesize); |
| |
| 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_xattr_cache_seq_show(struct seq_file *m, void *v) |
| { |
| struct super_block *sb = m->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| int rc; |
| |
| rc = seq_printf(m, "%u\n", sbi->ll_xattr_cache_enabled); |
| |
| return rc; |
| } |
| |
| static ssize_t ll_xattr_cache_seq_write(struct file *file, |
| const char __user *buffer, |
| size_t count, loff_t *off) |
| { |
| struct seq_file *seq = file->private_data; |
| struct super_block *sb = seq->private; |
| struct ll_sb_info *sbi = ll_s2sbi(sb); |
| int val, rc; |
| |
| rc = lprocfs_write_helper(buffer, count, &val); |
| if (rc) |
| return rc; |
| |
| if (val != 0 && val != 1) |
| return -ERANGE; |
| |
| if (val == 1 && !(sbi->ll_flags & LL_SBI_XATTR_CACHE)) |
| return -ENOTSUPP; |
| |
| sbi->ll_xattr_cache_enabled = val; |
| |
| return count; |
| } |
| LPROC_SEQ_FOPS(ll_xattr_cache); |
| |
| static struct lprocfs_vars lprocfs_llite_obd_vars[] = { |
| { "uuid", &ll_sb_uuid_fops, NULL, 0 }, |
| /* { "mntpt_path", ll_rd_path, 0, 0 }, */ |
| { "fstype", &ll_fstype_fops, NULL, 0 }, |
| { "site", &ll_site_stats_fops, NULL, 0 }, |
| { "blocksize", &ll_blksize_fops, NULL, 0 }, |
| { "kbytestotal", &ll_kbytestotal_fops, NULL, 0 }, |
| { "kbytesfree", &ll_kbytesfree_fops, NULL, 0 }, |
| { "kbytesavail", &ll_kbytesavail_fops, NULL, 0 }, |
| { "filestotal", &ll_filestotal_fops, NULL, 0 }, |
| { "filesfree", &ll_filesfree_fops, NULL, 0 }, |
| { "client_type", &ll_client_type_fops, NULL, 0 }, |
| /* { "filegroups", lprocfs_rd_filegroups, 0, 0 }, */ |
| { "max_read_ahead_mb", &ll_max_readahead_mb_fops, NULL }, |
| { "max_read_ahead_per_file_mb", &ll_max_readahead_per_file_mb_fops, |
| NULL }, |
| { "max_read_ahead_whole_mb", &ll_max_read_ahead_whole_mb_fops, NULL }, |
| { "max_cached_mb", &ll_max_cached_mb_fops, NULL }, |
| { "checksum_pages", &ll_checksum_fops, NULL }, |
| { "max_rw_chunk", &ll_max_rw_chunk_fops, NULL }, |
| { "stats_track_pid", &ll_track_pid_fops, NULL }, |
| { "stats_track_ppid", &ll_track_ppid_fops, NULL }, |
| { "stats_track_gid", &ll_track_gid_fops, NULL }, |
| { "statahead_max", &ll_statahead_max_fops, NULL }, |
| { "statahead_agl", &ll_statahead_agl_fops, NULL }, |
| { "statahead_stats", &ll_statahead_stats_fops, NULL, 0 }, |
| { "lazystatfs", &ll_lazystatfs_fops, NULL }, |
| { "max_easize", &ll_max_easize_fops, NULL, 0 }, |
| { "default_easize", &ll_defult_easize_fops, NULL, 0 }, |
| { "max_cookiesize", &ll_max_cookiesize_fops, NULL, 0 }, |
| { "default_cookiesize", &ll_defult_cookiesize_fops, NULL, 0 }, |
| { "sbi_flags", &ll_sbi_flags_fops, NULL, 0 }, |
| { "xattr_cache", &ll_xattr_cache_fops, NULL, 0 }, |
| { NULL } |
| }; |
| |
| #define MAX_STRING_SIZE 128 |
| |
| static const struct llite_file_opcode { |
| __u32 opcode; |
| __u32 type; |
| const char *opname; |
| } llite_opcode_table[LPROC_LL_FILE_OPCODES] = { |
| /* file operation */ |
| { LPROC_LL_DIRTY_HITS, LPROCFS_TYPE_REGS, "dirty_pages_hits" }, |
| { LPROC_LL_DIRTY_MISSES, LPROCFS_TYPE_REGS, "dirty_pages_misses" }, |
| { LPROC_LL_READ_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES, |
| "read_bytes" }, |
| { LPROC_LL_WRITE_BYTES, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_BYTES, |
| "write_bytes" }, |
| { LPROC_LL_BRW_READ, LPROCFS_CNTR_AVGMINMAX|LPROCFS_TYPE_PAGES, |
| "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_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" }, |
| }; |
| |
| void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count) |
| { |
| if (!sbi->ll_stats) |
| return; |
| if (sbi->ll_stats_track_type == STATS_TRACK_ALL) |
| lprocfs_counter_add(sbi->ll_stats, op, count); |
| else if (sbi->ll_stats_track_type == STATS_TRACK_PID && |
| 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->real_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", |
| }; |
| |
| 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; |
| struct proc_dir_entry *dir; |
| char name[MAX_STRING_SIZE + 1], *ptr; |
| int err, id, len, rc; |
| |
| 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"); |
| |
| 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"); |
| |
| 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_NONE); |
| if (sbi->ll_stats == NULL) { |
| err = -ENOMEM; |
| goto out; |
| } |
| /* do counter init */ |
| for (id = 0; id < LPROC_LL_FILE_OPCODES; id++) { |
| __u32 type = llite_opcode_table[id].type; |
| void *ptr = NULL; |
| if (type & LPROCFS_TYPE_REGS) |
| ptr = "regs"; |
| else if (type & LPROCFS_TYPE_BYTES) |
| ptr = "bytes"; |
| else if (type & LPROCFS_TYPE_PAGES) |
| ptr = "pages"; |
| lprocfs_counter_init(sbi->ll_stats, |
| llite_opcode_table[id].opcode, |
| (type & LPROCFS_CNTR_AVGMINMAX), |
| llite_opcode_table[id].opname, ptr); |
| } |
| err = lprocfs_register_stats(sbi->ll_proc_root, "stats", sbi->ll_stats); |
| if (err) |
| goto out; |
| |
| sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string), |
| LPROCFS_STATS_FLAG_NONE); |
| if (sbi->ll_ra_stats == NULL) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| 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 = lprocfs_add_vars(sbi->ll_proc_root, lprocfs_llite_obd_vars, sb); |
| if (err) |
| goto out; |
| |
| /* MDC info */ |
| obd = class_name2obd(mdc); |
| |
| 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) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| snprintf(name, MAX_STRING_SIZE, "common_name"); |
| lvars[0].fops = &llite_name_fops; |
| err = lprocfs_add_vars(dir, lvars, obd); |
| if (err) |
| goto out; |
| |
| snprintf(name, MAX_STRING_SIZE, "uuid"); |
| lvars[0].fops = &llite_uuid_fops; |
| err = lprocfs_add_vars(dir, lvars, obd); |
| if (err) |
| goto out; |
| |
| /* OSC */ |
| obd = class_name2obd(osc); |
| |
| 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) { |
| err = -ENOMEM; |
| goto out; |
| } |
| |
| snprintf(name, MAX_STRING_SIZE, "common_name"); |
| lvars[0].fops = &llite_name_fops; |
| err = lprocfs_add_vars(dir, lvars, obd); |
| if (err) |
| goto out; |
| |
| 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_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 pct(a, b) (b ? a * 100 / b : 0) |
| |
| static void ll_display_extents_info(struct ll_rw_extents_info *io_extents, |
| struct seq_file *seq, int which) |
| { |
| unsigned long read_tot = 0, write_tot = 0, read_cum, write_cum; |
| unsigned long start, end, r, w; |
| char *unitp = "KMGTPEZY"; |
| int i, units = 10; |
| struct per_process_info *pp_info = &io_extents->pp_extents[which]; |
| |
| read_cum = 0; |
| write_cum = 0; |
| start = 0; |
| |
| for (i = 0; i < LL_HIST_MAX; i++) { |
| read_tot += pp_info->pp_r_hist.oh_buckets[i]; |
| write_tot += pp_info->pp_w_hist.oh_buckets[i]; |
| } |
| |
| for (i = 0; i < LL_HIST_MAX; i++) { |
| r = pp_info->pp_r_hist.oh_buckets[i]; |
| w = pp_info->pp_w_hist.oh_buckets[i]; |
| read_cum += r; |
| write_cum += w; |
| end = 1 << (i + LL_HIST_START - units); |
| seq_printf(seq, "%4lu%c - %4lu%c%c: %14lu %4lu %4lu | %14lu %4lu %4lu\n", |
| start, *unitp, end, *unitp, |
| (i == LL_HIST_MAX - 1) ? '+' : ' ', |
| r, pct(r, read_tot), pct(read_cum, read_tot), |
| w, pct(w, write_tot), pct(write_cum, write_tot)); |
| start = end; |
| if (start == 1<<10) { |
| start = 1; |
| units += 10; |
| unitp++; |
| } |
| if (read_cum == read_tot && write_cum == write_tot) |
| break; |
| } |
| } |
| |
| static int ll_rw_extents_stats_pp_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; |
| int k; |
| |
| do_gettimeofday(&now); |
| |
| 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, (unsigned long)now.tv_usec); |
| seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write"); |
| 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; |
| } |
| |
| static ssize_t ll_rw_extents_stats_pp_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; |
| 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; |
| |
| do_gettimeofday(&now); |
| |
| 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, (unsigned long)now.tv_usec); |
| |
| seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write"); |
| 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); |
| |
| return 0; |
| } |
| |
| 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; |
| 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 ll_file_data *file, loff_t pos, |
| size_t count, int rw) |
| { |
| int i, cur = -1; |
| struct ll_rw_process_info *process; |
| struct ll_rw_process_info *offset; |
| int *off_count = &sbi->ll_rw_offset_entry_count; |
| int *process_count = &sbi->ll_offset_process_count; |
| struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; |
| |
| if (!sbi->ll_rw_stats_on) |
| return; |
| process = sbi->ll_rw_process_info; |
| offset = sbi->ll_rw_offset_info; |
| |
| 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) { |
| cur = i; |
| break; |
| } |
| } |
| |
| if (cur == -1) { |
| /* new process */ |
| 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_r_hist); |
| lprocfs_oh_clear(&io_extents->pp_extents[cur].pp_w_hist); |
| } |
| |
| 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[LL_PROCESS_HIST_MAX].pp_r_hist.oh_buckets[i]++; |
| } else { |
| 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_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 = 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); |
| return; |
| } |
| 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_pid = pid; |
| offset[*off_count].rw_range_start = |
| process[i].rw_range_start; |
| offset[*off_count].rw_range_end = |
| process[i].rw_last_file_pos; |
| offset[*off_count].rw_smallest_extent = |
| process[i].rw_smallest_extent; |
| offset[*off_count].rw_largest_extent = |
| process[i].rw_largest_extent; |
| offset[*off_count].rw_offset = |
| process[i].rw_offset; |
| process[i].rw_op = rw; |
| process[i].rw_range_start = pos; |
| process[i].rw_smallest_extent = count; |
| process[i].rw_largest_extent = count; |
| 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 = 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 = 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); |
| } |
| |
| 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; |
| int i; |
| |
| do_gettimeofday(&now); |
| |
| 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); |
| |
| seq_printf(seq, "snapshot_time: %lu.%lu (secs.usecs)\n", |
| now.tv_sec, (unsigned long)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"); |
| /* 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 __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; |
| 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; |
| } |