X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fllite%2Flproc_llite.c;h=c1775697dbb29b46bec0cd6f1753efd65b174c70;hp=a8dba54fb0aae51b936d6d8f2d4cc41c8641175c;hb=506b68a359045cd8c78e5385eab6d4e01f2fdb83;hpb=4af3ab1945fd1ac6cc9870d72734c37a000a0999 diff --git a/lustre/llite/lproc_llite.c b/lustre/llite/lproc_llite.c index a8dba54..c177569 100644 --- a/lustre/llite/lproc_llite.c +++ b/lustre/llite/lproc_llite.c @@ -15,11 +15,7 @@ * * 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. + * http://www.gnu.org/licenses/gpl-2.0.html * * GPL HEADER END */ @@ -27,7 +23,7 @@ * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved. * Use is subject to license terms. * - * Copyright (c) 2011, 2012, Intel Corporation. + * Copyright (c) 2012, 2017, Intel Corporation. */ /* * This file is part of Lustre, http://www.lustre.org/ @@ -36,205 +32,299 @@ #define DEBUG_SUBSYSTEM S_LLITE #include -#include +#include +#ifdef HAVE_UIDGID_HEADER +# include +#endif +#include #include -#include #include #include "llite_internal.h" +#include "vvp_internal.h" -struct proc_dir_entry *proc_lustre_fs_root; - -#ifdef LPROCFS -/* /proc/lustre/llite mount point registration */ -extern struct file_operations vvp_dump_pgcache_file_ops; -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_shift_64(-OBD_STATFS_CACHE_SECONDS), - OBD_STATFS_NODELAY); - if (!rc) { - *eof = 1; - rc = snprintf(page, count, "%u\n", osfs.os_bsize); - } +static struct kobject *llite_kobj; +static struct dentry *llite_root; + +static void llite_kobj_release(struct kobject *kobj) +{ + if (!IS_ERR_OR_NULL(llite_root)) { + debugfs_remove(llite_root); + llite_root = NULL; + } - return rc; + kfree(kobj); } -static int ll_rd_kbytestotal(char *page, char **start, off_t off, int count, - int *eof, void *data) +static struct kobj_type llite_kobj_ktype = { + .release = llite_kobj_release, + .sysfs_ops = &lustre_sysfs_ops, +}; + +int llite_tunables_register(void) { - struct super_block *sb = (struct super_block *)data; - struct obd_statfs osfs; - int rc; + 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; + llite_kobj = kzalloc(sizeof(*llite_kobj), GFP_KERNEL); + if (!llite_kobj) + return -ENOMEM; - while (blk_size >>= 1) - result <<= 1; + llite_kobj->kset = lustre_kset; + rc = kobject_init_and_add(llite_kobj, &llite_kobj_ktype, + &lustre_kset->kobj, "%s", "llite"); + if (rc) + goto free_kobj; + + llite_root = debugfs_create_dir("llite", debugfs_lustre_root); + if (IS_ERR_OR_NULL(llite_root)) { + rc = llite_root ? PTR_ERR(llite_root) : -ENOMEM; + llite_root = NULL; +free_kobj: + kobject_put(llite_kobj); + llite_kobj = NULL; + } - *eof = 1; - rc = snprintf(page, count, LPU64"\n", result); - } - return rc; + return rc; +} +void llite_tunables_unregister(void) +{ + kobject_put(llite_kobj); + llite_kobj = NULL; } -static int ll_rd_kbytesfree(char *page, char **start, off_t off, int count, - int *eof, void *data) +/* /lustre/llite mount point registration */ +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; + +/** + * ll_stats_pid_write() - Determine if stats collection should be enabled + * @buf: Buffer containing the data written + * @len: Number of bytes in the buffer + * + * Several proc files begin collecting stats when a value is written, and stop + * collecting when either '0' or 'disable' is written. This function checks the + * written value to see if collection should be enabled or disabled. + * + * Return: If '0' or 'disable' is provided, 0 is returned. If the text + * equivalent of a number is written, that number is returned. Otherwise, + * 1 is returned. Non-zero return values indicate collection should be enabled. + */ +static s64 ll_stats_pid_write(const char __user *buf, size_t len) { - struct super_block *sb = (struct super_block *)data; - struct obd_statfs osfs; - int rc; + unsigned long long value = 1; + char kernbuf[16]; + 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; + rc = kstrtoull_from_user(buf, len, 0, &value); + if (rc < 0 && len < sizeof(kernbuf)) { + if (copy_from_user(kernbuf, buf, len)) + return -EFAULT; + kernbuf[len] = 0; - while (blk_size >>= 1) - result <<= 1; + if (kernbuf[len - 1] == '\n') + kernbuf[len - 1] = 0; - *eof = 1; - rc = snprintf(page, count, LPU64"\n", result); - } - return rc; + if (strncasecmp(kernbuf, "disable", 7) == 0) + value = 0; + } + + return value; } -static int ll_rd_kbytesavail(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t blocksize_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct super_block *sb = (struct super_block *)data; - struct obd_statfs osfs; - int rc; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + 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; + rc = ll_statfs_internal(sbi, &osfs, OBD_STATFS_NODELAY); + if (rc) + return rc; - while (blk_size >>= 1) - result <<= 1; + return sprintf(buf, "%u\n", osfs.os_bsize); +} +LUSTRE_RO_ATTR(blocksize); - *eof = 1; - rc = snprintf(page, count, LPU64"\n", result); - } - return rc; +static ssize_t stat_blocksize_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return sprintf(buf, "%u\n", sbi->ll_stat_blksize); } -static int ll_rd_filestotal(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t stat_blocksize_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) { - struct super_block *sb = (struct super_block *)data; - struct obd_statfs osfs; - int rc; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned int val; + int rc; - LASSERT(sb != NULL); - rc = ll_statfs_internal(sb, &osfs, - cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), - OBD_STATFS_NODELAY); - if (!rc) { - *eof = 1; - rc = snprintf(page, count, LPU64"\n", osfs.os_files); - } - return rc; + rc = kstrtouint(buffer, 10, &val); + if (rc) + return rc; + + if (val != 0 && (val < PAGE_SIZE || (val & (val - 1))) != 0) + return -ERANGE; + + sbi->ll_stat_blksize = val; + + return count; } +LUSTRE_RW_ATTR(stat_blocksize); -static int ll_rd_filesfree(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t kbytestotal_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct super_block *sb = (struct super_block *)data; - struct obd_statfs osfs; - int rc; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + struct obd_statfs osfs; + u32 blk_size; + u64 result; + int rc; + + rc = ll_statfs_internal(sbi, &osfs, OBD_STATFS_NODELAY); + if (rc) + return rc; - LASSERT(sb != NULL); - rc = ll_statfs_internal(sb, &osfs, - cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS), - OBD_STATFS_NODELAY); - if (!rc) { - *eof = 1; - rc = snprintf(page, count, LPU64"\n", osfs.os_ffree); - } - return rc; + blk_size = osfs.os_bsize >> 10; + result = osfs.os_blocks; + + while (blk_size >>= 1) + result <<= 1; + return sprintf(buf, "%llu\n", result); } +LUSTRE_RO_ATTR(kbytestotal); -static int ll_rd_client_type(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t kbytesfree_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct ll_sb_info *sbi = ll_s2sbi((struct super_block *)data); - int rc; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + struct obd_statfs osfs; + u32 blk_size; + u64 result; + int rc; + + rc = ll_statfs_internal(sbi, &osfs, OBD_STATFS_NODELAY); + if (rc) + return rc; - LASSERT(sbi != NULL); + blk_size = osfs.os_bsize >> 10; + result = osfs.os_bfree; - *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"); + while (blk_size >>= 1) + result <<= 1; - return rc; + return sprintf(buf, "%llu\n", result); } +LUSTRE_RO_ATTR(kbytesfree); -static int ll_rd_fstype(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t kbytesavail_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct super_block *sb = (struct super_block*)data; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + struct obd_statfs osfs; + u32 blk_size; + u64 result; + int rc; + + rc = ll_statfs_internal(sbi, &osfs, OBD_STATFS_NODELAY); + if (rc) + return rc; - LASSERT(sb != NULL); - *eof = 1; - return snprintf(page, count, "%s\n", sb->s_type->name); + blk_size = osfs.os_bsize >> 10; + result = osfs.os_bavail; + + while (blk_size >>= 1) + result <<= 1; + + return sprintf(buf, "%llu\n", result); } +LUSTRE_RO_ATTR(kbytesavail); -static int ll_rd_sb_uuid(char *page, char **start, off_t off, int count, - int *eof, void *data) +static ssize_t filestotal_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct super_block *sb = (struct super_block *)data; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + struct obd_statfs osfs; + int rc; - LASSERT(sb != NULL); - *eof = 1; - return snprintf(page, count, "%s\n", ll_s2sbi(sb)->ll_sb_uuid.uuid); + rc = ll_statfs_internal(sbi, &osfs, OBD_STATFS_NODELAY); + if (rc) + return rc; + + return sprintf(buf, "%llu\n", osfs.os_files); } +LUSTRE_RO_ATTR(filestotal); -static int ll_rd_site_stats(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t filesfree_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct super_block *sb = data; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + struct obd_statfs osfs; + int rc; - /* - * 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), - page, count); + rc = ll_statfs_internal(sbi, &osfs, OBD_STATFS_NODELAY); + if (rc) + return rc; + + return sprintf(buf, "%llu\n", osfs.os_ffree); +} +LUSTRE_RO_ATTR(filesfree); + +static ssize_t client_type_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + return sprintf(buf, "local client\n"); +} +LUSTRE_RO_ATTR(client_type); + +static ssize_t fstype_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + return sprintf(buf, "lustre\n"); +} +LUSTRE_RO_ATTR(fstype); + +static ssize_t uuid_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return sprintf(buf, "%s\n", sbi->ll_sb_uuid.uuid); +} +LUSTRE_RO_ATTR(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); } -static int ll_rd_max_readahead_mb(char *page, char **start, off_t off, - int count, int *eof, void *data) +LDEBUGFS_SEQ_FOPS_RO(ll_site_stats); + +static int ll_max_readahead_mb_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); long pages_number; int mult; @@ -243,27 +333,34 @@ static int ll_rd_max_readahead_mb(char *page, char **start, off_t off, 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); + mult = 1 << (20 - PAGE_SHIFT); + return lprocfs_seq_read_frac_helper(m, pages_number, mult); } -static int ll_wr_max_readahead_mb(struct file *file, const char *buffer, - unsigned long count, void *data) +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 = 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); + __s64 pages_number; + int rc; - mult = 1 << (20 - CFS_PAGE_SHIFT); - rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); - if (rc) - return rc; + rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M'); + if (rc) + return rc; - if (pages_number < 0 || pages_number > cfs_num_physpages / 2) { - CERROR("can't set file readahead more than %lu MB\n", - cfs_num_physpages >> (20 - CFS_PAGE_SHIFT + 1)); /*1/2 of RAM*/ - return -ERANGE; - } + pages_number >>= PAGE_SHIFT; + + if (pages_number < 0 || pages_number > totalram_pages / 2) { + /* 1/2 of RAM */ + CERROR("%s: can't set max_readahead_mb=%lu > %luMB\n", + sbi->ll_fsname, + (unsigned long)pages_number >> (20 - PAGE_SHIFT), + totalram_pages >> (20 - PAGE_SHIFT + 1)); + return -ERANGE; + } spin_lock(&sbi->ll_lock); sbi->ll_ra_info.ra_max_pages = pages_number; @@ -272,10 +369,11 @@ static int ll_wr_max_readahead_mb(struct file *file, const char *buffer, return count; } -static int ll_rd_max_readahead_per_file_mb(char *page, char **start, off_t off, - int count, int *eof, void *data) +LDEBUGFS_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 = data; + struct super_block *sb = m->private; struct ll_sb_info *sbi = ll_s2sbi(sb); long pages_number; int mult; @@ -284,29 +382,34 @@ static int ll_rd_max_readahead_per_file_mb(char *page, char **start, off_t off, 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_SHIFT); + return lprocfs_seq_read_frac_helper(m, pages_number, mult); } -static int ll_wr_max_readahead_per_file_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 rc; + __s64 pages_number; - mult = 1 << (20 - CFS_PAGE_SHIFT); - rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); - if (rc) - return rc; + rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M'); + 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; - } + pages_number >>= PAGE_SHIFT; + + if (pages_number < 0 || pages_number > sbi->ll_ra_info.ra_max_pages) { + CERROR("%s: can't set max_readahead_per_file_mb=%lu > " + "max_read_ahead_mb=%lu\n", sbi->ll_fsname, + (unsigned long)pages_number >> (20 - PAGE_SHIFT), + sbi->ll_ra_info.ra_max_pages >> (20 - PAGE_SHIFT)); + return -ERANGE; + } spin_lock(&sbi->ll_lock); sbi->ll_ra_info.ra_max_pages_per_file = pages_number; @@ -315,10 +418,11 @@ static int ll_wr_max_readahead_per_file_mb(struct file *file, const char *buffer return count; } -static int ll_rd_max_read_ahead_whole_mb(char *page, char **start, off_t off, - int count, int *eof, void *data) +LDEBUGFS_SEQ_FOPS(ll_max_readahead_per_file_mb); + +static int ll_max_read_ahead_whole_mb_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); long pages_number; int mult; @@ -327,31 +431,39 @@ static int ll_rd_max_read_ahead_whole_mb(char *page, char **start, off_t off, 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); + mult = 1 << (20 - PAGE_SHIFT); + return lprocfs_seq_read_frac_helper(m, pages_number, mult); } -static int ll_wr_max_read_ahead_whole_mb(struct file *file, const char *buffer, - unsigned long count, void *data) +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 = 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 seq_file *m = file->private_data; + struct super_block *sb = m->private; + struct ll_sb_info *sbi = ll_s2sbi(sb); + int rc; + __s64 pages_number; - /* 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 - CFS_PAGE_SHIFT)); - return -ERANGE; - } + rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M'); + if (rc) + return rc; + + pages_number >>= PAGE_SHIFT; + + /* 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) { + int pages_shift = 20 - PAGE_SHIFT; + CERROR("%s: can't set max_read_ahead_whole_mb=%lu > " + "max_read_ahead_per_file_mb=%lu\n", + sbi->ll_fsname, + (unsigned long)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; @@ -360,58 +472,72 @@ static int ll_wr_max_read_ahead_whole_mb(struct file *file, const char *buffer, return count; } -static int ll_rd_max_cached_mb(char *page, char **start, off_t off, - int count, int *eof, void *data) +LDEBUGFS_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 = data; + 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 - CFS_PAGE_SHIFT; - int max_cached_mb; - int unused_mb; + struct cl_client_cache *cache = sbi->ll_cache; + int shift = 20 - PAGE_SHIFT; + long max_cached_mb; + long unused_mb; - *eof = 1; max_cached_mb = cache->ccc_lru_max >> shift; - unused_mb = cfs_atomic_read(&cache->ccc_lru_left) >> shift; - return snprintf(page, count, - "users: %d\n" - "max_cached_mb: %d\n" - "used_mb: %d\n" - "unused_mb: %d\n" - "reclaim_count: %u\n", - cfs_atomic_read(&cache->ccc_users), - max_cached_mb, - max_cached_mb - unused_mb, - unused_mb, - cache->ccc_lru_shrinkers); -} - -static int ll_wr_max_cached_mb(struct file *file, const char *buffer, - unsigned long count, void *data) -{ - struct super_block *sb = data; + unused_mb = atomic_long_read(&cache->ccc_lru_left) >> shift; + 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); + return 0; +} + +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; - int mult, rc, pages_number; - int diff = 0; - int nrpages = 0; + struct cl_client_cache *cache = sbi->ll_cache; + struct lu_env *env; + long diff = 0; + long nrpages = 0; + __u16 refcheck; + __s64 pages_number; + int 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 - CFS_PAGE_SHIFT); - buffer = lprocfs_find_named_value(buffer, "max_cached_mb:", &count); - rc = lprocfs_write_frac_helper(buffer, count, &pages_number, mult); + buffer += lprocfs_find_named_value(kernbuf, "max_cached_mb:", &count) - + kernbuf; + rc = lprocfs_str_with_units_to_s64(buffer, count, &pages_number, 'M'); if (rc) RETURN(rc); - if (pages_number < 0 || pages_number > cfs_num_physpages) { + pages_number >>= PAGE_SHIFT; + + 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), - cfs_num_physpages >> (20 - CFS_PAGE_SHIFT)); + sbi->ll_fsname, + totalram_pages >> (20 - PAGE_SHIFT)); RETURN(-ERANGE); } - - if (sbi->ll_dt_exp == NULL) - RETURN(-ENODEV); + /* 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; @@ -419,24 +545,28 @@ static int ll_wr_max_cached_mb(struct file *file, const char *buffer, /* easy - add more LRU slots. */ if (diff >= 0) { - cfs_atomic_add(diff, &cache->ccc_lru_left); + atomic_long_add(diff, &cache->ccc_lru_left); GOTO(out, rc = 0); } + env = cl_env_get(&refcheck); + if (IS_ERR(env)) + RETURN(PTR_ERR(env)); + diff = -diff; while (diff > 0) { - int tmp; + long tmp; /* reduce LRU budget from free slots. */ do { - int ov, nv; + long ov, nv; - ov = cfs_atomic_read(&cache->ccc_lru_left); + ov = atomic_long_read(&cache->ccc_lru_left); if (ov == 0) break; nv = ov > diff ? ov - diff : 0; - rc = cfs_atomic_cmpxchg(&cache->ccc_lru_left, ov, nv); + rc = atomic_long_cmpxchg(&cache->ccc_lru_left, ov, nv); if (likely(ov == rc)) { diff -= ov - nv; nrpages += ov - nv; @@ -447,15 +577,21 @@ static int ll_wr_max_cached_mb(struct file *file, const char *buffer, 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(NULL, sbi->ll_dt_exp, + 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) { @@ -464,319 +600,797 @@ out: spin_unlock(&sbi->ll_lock); rc = count; } else { - cfs_atomic_add(nrpages, &cache->ccc_lru_left); + atomic_long_add(nrpages, &cache->ccc_lru_left); } return rc; } -static int ll_rd_checksum(char *page, char **start, off_t off, - int count, int *eof, void *data) +LDEBUGFS_SEQ_FOPS(ll_max_cached_mb); + +static ssize_t checksums_show(struct kobject *kobj, struct attribute *attr, + char *buf) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); - return snprintf(page, count, "%u\n", - (sbi->ll_flags & LL_SBI_CHECKSUM) ? 1 : 0); + return sprintf(buf, "%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 checksums_store(struct kobject *kobj, struct attribute *attr, + const char *buffer, size_t count) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); - int val, rc; - - if (!sbi->ll_dt_exp) - /* Not set up yet */ - return -EAGAIN; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + bool val; + int tmp; + int rc; - 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; + if (!sbi->ll_dt_exp) + /* Not set up yet */ + return -EAGAIN; - 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); + rc = kstrtobool(buffer, &val); + if (rc) + return rc; + if (val) + sbi->ll_flags |= LL_SBI_CHECKSUM; + else + sbi->ll_flags &= ~LL_SBI_CHECKSUM; + tmp = val; + + rc = obd_set_info_async(NULL, sbi->ll_dt_exp, sizeof(KEY_CHECKSUM), + KEY_CHECKSUM, sizeof(tmp), &tmp, NULL); + if (rc) + CWARN("Failed to set OSC checksum flags: %d\n", rc); - return count; + return count; } +LUSTRE_RW_ATTR(checksums); -static int ll_rd_max_rw_chunk(char *page, char **start, off_t off, - int count, int *eof, void *data) +LUSTRE_ATTR(checksum_pages, 0644, checksums_show, checksums_store); + +static ssize_t ll_rd_track_id(struct kobject *kobj, char *buf, + enum stats_track_type type) { - struct super_block *sb = data; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + if (sbi->ll_stats_track_type == type) + return sprintf(buf, "%d\n", sbi->ll_stats_track_id); + else if (sbi->ll_stats_track_type == STATS_TRACK_ALL) + return sprintf(buf, "0 (all)\n"); - return snprintf(page, count, "%lu\n", ll_s2sbi(sb)->ll_max_rw_chunk); + return sprintf(buf, "untracked\n"); } -static int ll_wr_max_rw_chunk(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t ll_wr_track_id(struct kobject *kobj, const char *buffer, + size_t count, enum stats_track_type type) { - struct super_block *sb = data; - int rc, val; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned long pid; + int rc; - rc = lprocfs_write_helper(buffer, count, &val); - if (rc) - return rc; - ll_s2sbi(sb)->ll_max_rw_chunk = val; - return count; + rc = kstrtoul(buffer, 10, &pid); + if (rc) + return rc; + + sbi->ll_stats_track_id = pid; + if (pid == 0) + sbi->ll_stats_track_type = STATS_TRACK_ALL; + else + sbi->ll_stats_track_type = type; + lprocfs_clear_stats(sbi->ll_stats); + return count; } -static int ll_rd_track_id(char *page, int count, void *data, - enum stats_track_type type) +static ssize_t stats_track_pid_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - 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"); - } + return ll_rd_track_id(kobj, buf, STATS_TRACK_PID); } -static int ll_wr_track_id(const char *buffer, unsigned long count, void *data, - enum stats_track_type type) +static ssize_t stats_track_pid_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) { - 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 ll_wr_track_id(kobj, buffer, count, STATS_TRACK_PID); } +LUSTRE_RW_ATTR(stats_track_pid); -static int ll_rd_track_pid(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t stats_track_ppid_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - return (ll_rd_track_id(page, count, data, STATS_TRACK_PID)); + return ll_rd_track_id(kobj, buf, STATS_TRACK_PPID); } -static int ll_wr_track_pid(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t stats_track_ppid_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) { - return (ll_wr_track_id(buffer, count, data, STATS_TRACK_PID)); + return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_PPID); } +LUSTRE_RW_ATTR(stats_track_ppid); -static int ll_rd_track_ppid(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t stats_track_gid_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - return (ll_rd_track_id(page, count, data, STATS_TRACK_PPID)); + return ll_rd_track_id(kobj, buf, STATS_TRACK_GID); } -static int ll_wr_track_ppid(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t stats_track_gid_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) { - return (ll_wr_track_id(buffer, count, data, STATS_TRACK_PPID)); + return ll_wr_track_id(kobj, buffer, count, STATS_TRACK_GID); } +LUSTRE_RW_ATTR(stats_track_gid); -static int ll_rd_track_gid(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t statahead_running_max_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - return (ll_rd_track_id(page, count, data, STATS_TRACK_GID)); + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return snprintf(buf, 16, "%u\n", sbi->ll_sa_running_max); } -static int ll_wr_track_gid(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t statahead_running_max_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) { - return (ll_wr_track_id(buffer, count, data, STATS_TRACK_GID)); + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned long val; + int rc; + + rc = kstrtoul(buffer, 0, &val); + if (rc) + return rc; + + if (val <= LL_SA_RUNNING_MAX) { + sbi->ll_sa_running_max = val; + return count; + } + + CERROR("Bad statahead_running_max value %lu. Valid values " + "are in the range [0, %d]\n", val, LL_SA_RUNNING_MAX); + + return -ERANGE; } +LUSTRE_RW_ATTR(statahead_running_max); -static int ll_rd_statahead_max(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t statahead_max_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); - return snprintf(page, count, "%u\n", sbi->ll_sa_max); + return sprintf(buf, "%u\n", sbi->ll_sa_max); } -static int ll_wr_statahead_max(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t statahead_max_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); - int val, rc; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned long val; + int rc; - rc = lprocfs_write_helper(buffer, count, &val); - if (rc) - return rc; + rc = kstrtoul(buffer, 0, &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); + if (val <= LL_SA_RPC_MAX) + sbi->ll_sa_max = val; + else + CERROR("Bad statahead_max value %lu. Valid values are in the range [0, %d]\n", + val, LL_SA_RPC_MAX); - return count; + return count; } +LUSTRE_RW_ATTR(statahead_max); -static int ll_rd_statahead_agl(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t statahead_agl_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); - return snprintf(page, count, "%u\n", - sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0); + return sprintf(buf, "%u\n", sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0); } -static int ll_wr_statahead_agl(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t statahead_agl_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); - int val, rc; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + bool val; + int rc; - rc = lprocfs_write_helper(buffer, count, &val); - if (rc) - return rc; + rc = kstrtobool(buffer, &val); + if (rc) + return rc; - if (val) - sbi->ll_flags |= LL_SBI_AGL_ENABLED; - else - sbi->ll_flags &= ~LL_SBI_AGL_ENABLED; + if (val) + sbi->ll_flags |= LL_SBI_AGL_ENABLED; + else + sbi->ll_flags &= ~LL_SBI_AGL_ENABLED; - return count; + return count; } +LUSTRE_RW_ATTR(statahead_agl); -static int ll_rd_statahead_stats(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) { - 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, - "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)); + 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)); + return 0; } -static int ll_rd_lazystatfs(char *page, char **start, off_t off, - int count, int *eof, void *data) +LDEBUGFS_SEQ_FOPS_RO(ll_statahead_stats); + +static ssize_t lazystatfs_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); - return snprintf(page, count, "%u\n", - (sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0); + return sprintf(buf, "%u\n", (sbi->ll_flags & LL_SBI_LAZYSTATFS) ? 1 : 0); } -static int ll_wr_lazystatfs(struct file *file, const char *buffer, - unsigned long count, void *data) +static ssize_t lazystatfs_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); - int val, rc; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + bool val; + int rc; - rc = lprocfs_write_helper(buffer, count, &val); - if (rc) - return rc; + rc = kstrtobool(buffer, &val); + if (rc) + return rc; - if (val) - sbi->ll_flags |= LL_SBI_LAZYSTATFS; - else - sbi->ll_flags &= ~LL_SBI_LAZYSTATFS; + if (val) + sbi->ll_flags |= LL_SBI_LAZYSTATFS; + else + sbi->ll_flags &= ~LL_SBI_LAZYSTATFS; - return count; + return count; } +LUSTRE_RW_ATTR(lazystatfs); -static int ll_rd_maxea_size(char *page, char **start, off_t off, - int count, int *eof, void *data) +static ssize_t max_easize_show(struct kobject *kobj, + struct attribute *attr, + char *buf) { - struct super_block *sb = data; - struct ll_sb_info *sbi = ll_s2sbi(sb); - unsigned int ealen; - int rc; + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned int ealen; + int rc; - rc = ll_get_max_mdsize(sbi, &ealen); - if (rc) - return rc; + rc = ll_get_max_mdsize(sbi, &ealen); + if (rc) + return rc; - return snprintf(page, count, "%u\n", ealen); + return sprintf(buf, "%u\n", ealen); } +LUSTRE_RO_ATTR(max_easize); -static int ll_rd_sbi_flags(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 ssize_t default_easize_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned int ealen; + int rc; + + rc = ll_get_default_mdsize(sbi, &ealen); + if (rc) + return rc; + + return sprintf(buf, "%u\n", ealen); +} + +/** + * 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 default_easize_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned int val; + int rc; + + if (count == 0) + return 0; + + rc = kstrtouint(buffer, 10, &val); + if (rc) + return rc; + + rc = ll_set_default_mdsize(sbi, val); + if (rc) + return rc; + + return count; +} +LUSTRE_RW_ATTR(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 = data; + struct super_block *sb = m->private; int flags = ll_s2sbi(sb)->ll_flags; int i = 0; - int rc = 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)); + "flags please.\n", ll_s2sbi(sb)->ll_fsname); return -EINVAL; } if (flags & 0x1) - rc += snprintf(page + rc, count - rc, "%s ", str[i]); + seq_printf(m, "%s ", str[i]); flags >>= 1; ++i; } - if (rc > 0) - rc += snprintf(page + rc, count - rc, "\b\n"); + seq_printf(m, "\b\n"); + return 0; +} + +LDEBUGFS_SEQ_FOPS_RO(ll_sbi_flags); + +static ssize_t xattr_cache_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return sprintf(buf, "%u\n", sbi->ll_xattr_cache_enabled); +} + +static ssize_t xattr_cache_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + bool val; + int rc; + + rc = kstrtobool(buffer, &val); + if (rc) + return rc; + + if (val && !(sbi->ll_flags & LL_SBI_XATTR_CACHE)) + return -ENOTSUPP; + + sbi->ll_xattr_cache_enabled = val; + sbi->ll_xattr_cache_set = 1; + + return count; +} +LUSTRE_RW_ATTR(xattr_cache); + +static ssize_t tiny_write_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return sprintf(buf, "%u\n", !!(sbi->ll_flags & LL_SBI_TINY_WRITE)); +} + +static ssize_t tiny_write_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + bool val; + int rc; + + rc = kstrtobool(buffer, &val); + if (rc) + return rc; + + spin_lock(&sbi->ll_lock); + if (val) + sbi->ll_flags |= LL_SBI_TINY_WRITE; + else + sbi->ll_flags &= ~LL_SBI_TINY_WRITE; + spin_unlock(&sbi->ll_lock); + + return count; +} +LUSTRE_RW_ATTR(tiny_write); + +static ssize_t fast_read_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return sprintf(buf, "%u\n", !!(sbi->ll_flags & LL_SBI_FAST_READ)); +} + +static ssize_t fast_read_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + bool val; + int rc; + + rc = kstrtobool(buffer, &val); + if (rc) + return rc; + + spin_lock(&sbi->ll_lock); + if (val) + sbi->ll_flags |= LL_SBI_FAST_READ; + else + sbi->ll_flags &= ~LL_SBI_FAST_READ; + spin_unlock(&sbi->ll_lock); + + return count; +} +LUSTRE_RW_ATTR(fast_read); + +static ssize_t file_heat_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return snprintf(buf, PAGE_SIZE, "%u\n", + !!(sbi->ll_flags & LL_SBI_FILE_HEAT)); +} + +static ssize_t file_heat_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + bool val; + int rc; + + rc = kstrtobool(buffer, &val); + if (rc) + return rc; + + spin_lock(&sbi->ll_lock); + if (val) + sbi->ll_flags |= LL_SBI_FILE_HEAT; + else + sbi->ll_flags &= ~LL_SBI_FILE_HEAT; + spin_unlock(&sbi->ll_lock); + + return count; +} +LUSTRE_RW_ATTR(file_heat); + +static ssize_t heat_decay_percentage_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return snprintf(buf, PAGE_SIZE, "%u\n", + (sbi->ll_heat_decay_weight * 100 + 128) / 256); +} + +static ssize_t heat_decay_percentage_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned long val; + int rc; + + rc = kstrtoul(buffer, 10, &val); + if (rc) + return rc; + + if (val < 0 || val > 100) + return -ERANGE; + + sbi->ll_heat_decay_weight = (val * 256 + 50) / 100; + + return count; +} +LUSTRE_RW_ATTR(heat_decay_percentage); + +static ssize_t heat_period_second_show(struct kobject *kobj, + struct attribute *attr, + char *buf) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + + return snprintf(buf, PAGE_SIZE, "%u\n", sbi->ll_heat_period_second); +} + +static ssize_t heat_period_second_store(struct kobject *kobj, + struct attribute *attr, + const char *buffer, + size_t count) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + unsigned long val; + int rc; + + rc = kstrtoul(buffer, 10, &val); + if (rc) + return rc; + + if (val <= 0) + return -ERANGE; + + sbi->ll_heat_period_second = val; + + return count; +} +LUSTRE_RW_ATTR(heat_period_second); + +static int ll_unstable_stats_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; + long pages; + int mb; + + pages = atomic_long_read(&cache->ccc_unstable_nr); + mb = (pages * PAGE_SIZE) >> 20; + + seq_printf(m, "unstable_check: %8d\n" + "unstable_pages: %12ld\n" + "unstable_mb: %8d\n", + cache->ccc_unstable_check, pages, mb); + return 0; +} + +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]; + bool val; + int 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 = kstrtobool_from_user(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; +} + +LDEBUGFS_SEQ_FOPS(ll_unstable_stats); + +static int ll_root_squash_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; + + seq_printf(m, "%u:%u\n", squash->rsi_uid, squash->rsi_gid); + return 0; +} + +static ssize_t ll_root_squash_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; + + return lprocfs_wr_root_squash(buffer, count, squash, sbi->ll_fsname); +} + +LDEBUGFS_SEQ_FOPS(ll_root_squash); + +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; + + 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; + seq_putc(m, '\n'); + } else { + seq_puts(m, "NONE\n"); + } + up_read(&squash->rsi_sem); + + return 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, sbi->ll_fsname); + if (rc < 0) + return rc; + + ll_compute_rootsquash_state(sbi); + 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 }, - { "site", ll_rd_site_stats, 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_per_file_mb", ll_rd_max_readahead_per_file_mb, - ll_wr_max_readahead_per_file_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 }, - { "statahead_max", ll_rd_statahead_max, ll_wr_statahead_max, 0 }, - { "statahead_agl", ll_rd_statahead_agl, ll_wr_statahead_agl, 0 }, - { "statahead_stats", ll_rd_statahead_stats, 0, 0 }, - { "lazystatfs", ll_rd_lazystatfs, ll_wr_lazystatfs, 0 }, - { "max_easize", ll_rd_maxea_size, 0, 0 }, - { "sbi_flags", ll_rd_sbi_flags, 0, 0 }, - { 0 } +LDEBUGFS_SEQ_FOPS(ll_nosquash_nids); + +struct lprocfs_vars lprocfs_llite_obd_vars[] = { + { .name = "site", + .fops = &ll_site_stats_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 = "statahead_stats", + .fops = &ll_statahead_stats_fops }, + { .name = "unstable_stats", + .fops = &ll_unstable_stats_fops }, + { .name = "sbi_flags", + .fops = &ll_sbi_flags_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 struct attribute *llite_attrs[] = { + &lustre_attr_blocksize.attr, + &lustre_attr_stat_blocksize.attr, + &lustre_attr_kbytestotal.attr, + &lustre_attr_kbytesfree.attr, + &lustre_attr_kbytesavail.attr, + &lustre_attr_filestotal.attr, + &lustre_attr_filesfree.attr, + &lustre_attr_client_type.attr, + &lustre_attr_fstype.attr, + &lustre_attr_uuid.attr, + &lustre_attr_checksums.attr, + &lustre_attr_checksum_pages.attr, + &lustre_attr_stats_track_pid.attr, + &lustre_attr_stats_track_ppid.attr, + &lustre_attr_stats_track_gid.attr, + &lustre_attr_statahead_running_max.attr, + &lustre_attr_statahead_max.attr, + &lustre_attr_statahead_agl.attr, + &lustre_attr_lazystatfs.attr, + &lustre_attr_max_easize.attr, + &lustre_attr_default_easize.attr, + &lustre_attr_xattr_cache.attr, + &lustre_attr_fast_read.attr, + &lustre_attr_tiny_write.attr, + &lustre_attr_file_heat.attr, + &lustre_attr_heat_decay_percentage.attr, + &lustre_attr_heat_period_second.attr, + NULL, +}; + +static void sbi_kobj_release(struct kobject *kobj) +{ + struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info, + ll_kset.kobj); + complete(&sbi->ll_kobj_unregister); +} + +static struct kobj_type sbi_ktype = { + .default_attrs = llite_attrs, + .sysfs_ops = &lustre_sysfs_ops, + .release = sbi_kobj_release, +}; + +static const struct llite_file_opcode { __u32 opcode; __u32 type; const char *opname; @@ -792,14 +1406,12 @@ struct llite_file_opcode { "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_FAULT, LPROCFS_TYPE_REGS, "page_fault" }, + { LPROC_LL_MKWRITE, LPROCFS_TYPE_REGS, "page_mkwrite" }, { LPROC_LL_LLSEEK, LPROCFS_TYPE_REGS, "seek" }, { LPROC_LL_FSYNC, LPROCFS_TYPE_REGS, "fsync" }, { LPROC_LL_READDIR, LPROCFS_TYPE_REGS, "readdir" }, @@ -822,6 +1434,7 @@ struct llite_file_opcode { { 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" }, @@ -839,185 +1452,165 @@ void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count) else if (sbi->ll_stats_track_type == STATS_TRACK_PPID && 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 == cfs_curproc_gid()) - 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_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" }; - -int lprocfs_register_mountpoint(struct proc_dir_entry *parent, - struct super_block *sb, char *osc, char *mdc) +int ll_debugfs_register_super(struct super_block *sb, const char *name) { - 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, rc; - ENTRY; - - memset(lvars, 0, sizeof(lvars)); + struct lustre_sb_info *lsi = s2lsi(sb); + struct ll_sb_info *sbi = ll_s2sbi(sb); + int err, id, rc; - name[MAX_STRING_SIZE] = '\0'; - lvars[0].name = name; + ENTRY; + LASSERT(sbi); + + if (IS_ERR_OR_NULL(llite_root)) + goto out_ll_kset; + + sbi->ll_debugfs_entry = ldebugfs_register(name, llite_root, + lprocfs_llite_obd_vars, sb); + if (IS_ERR_OR_NULL(sbi->ll_debugfs_entry)) { + err = sbi->ll_debugfs_entry ? PTR_ERR(sbi->ll_debugfs_entry) : + -ENOMEM; + sbi->ll_debugfs_entry = NULL; + RETURN(err); + } - LASSERT(sbi != NULL); - LASSERT(mdc != NULL); - LASSERT(osc != NULL); + rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "dump_page_cache",0444, + &vvp_dump_pgcache_file_ops, sbi); + if (rc) + CWARN("Error adding the dump_page_cache file\n"); - /* Get fsname */ - len = strlen(lsi->lsi_lmd->lmd_profile); - ptr = strrchr(lsi->lsi_lmd->lmd_profile, '-'); - if (ptr && (strcmp(ptr, "-client") == 0)) - len -= 7; + rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, "extents_stats", 0644, + &ll_rw_extents_stats_fops, sbi); + if (rc) + CWARN("Error adding the extent_stats file\n"); - /* Mount info */ - snprintf(name, MAX_STRING_SIZE, "%.*s-%p", len, - lsi->lsi_lmd->lmd_profile, sb); + rc = ldebugfs_seq_create(sbi->ll_debugfs_entry, + "extents_stats_per_process", 0644, + &ll_rw_extents_stats_pp_fops, sbi); + if (rc) + CWARN("Error adding the extents_stats_per_process file\n"); - 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 = ldebugfs_seq_create(sbi->ll_debugfs_entry, "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) + GOTO(out_debugfs, err = -ENOMEM); + + /* 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); + } - 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) - GOTO(out, err = -ENOMEM); - /* 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, err); - - 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); - - - err = lprocfs_add_vars(sbi->ll_proc_root, lprocfs_llite_obd_vars, sb); - 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); - - 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, "%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); - - /* OSC */ - obd = class_name2obd(osc); - - LASSERT(obd != NULL); - LASSERT(obd->obd_magic == OBD_DEVICE_MAGIC); - LASSERT(obd->obd_type->typ_name != NULL); - - 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, "%s/uuid", obd->obd_type->typ_name); - lvars[0].read_fptr = lprocfs_rd_uuid; - err = lprocfs_add_vars(sbi->ll_proc_root, 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); + err = ldebugfs_register_stats(sbi->ll_debugfs_entry, "stats", + sbi->ll_stats); + if (err) + GOTO(out_stats, err); + + sbi->ll_ra_stats = lprocfs_alloc_stats(ARRAY_SIZE(ra_stat_string), + LPROCFS_STATS_FLAG_NONE); + if (sbi->ll_ra_stats == NULL) + GOTO(out_stats, 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 = ldebugfs_register_stats(sbi->ll_debugfs_entry, "read_ahead_stats", + sbi->ll_ra_stats); + if (err) + GOTO(out_ra_stats, err); + +out_ll_kset: + /* Yes we also register sysfs mount kset here as well */ + sbi->ll_kset.kobj.parent = llite_kobj; + sbi->ll_kset.kobj.ktype = &sbi_ktype; + init_completion(&sbi->ll_kobj_unregister); + err = kobject_set_name(&sbi->ll_kset.kobj, "%s", name); + if (err) + GOTO(out_ra_stats, err); + + err = kset_register(&sbi->ll_kset); + if (err) + GOTO(out_ra_stats, err); + + lsi->lsi_kobj = kobject_get(&sbi->ll_kset.kobj); + + RETURN(0); +out_ra_stats: + lprocfs_free_stats(&sbi->ll_ra_stats); +out_stats: + lprocfs_free_stats(&sbi->ll_stats); +out_debugfs: + ldebugfs_remove(&sbi->ll_debugfs_entry); + + RETURN(err); } -void lprocfs_unregister_mountpoint(struct ll_sb_info *sbi) +void ll_debugfs_unregister_super(struct super_block *sb) { - if (sbi->ll_proc_root) { - lprocfs_remove(&sbi->ll_proc_root); - lprocfs_free_stats(&sbi->ll_ra_stats); - lprocfs_free_stats(&sbi->ll_stats); - } + struct lustre_sb_info *lsi = s2lsi(sb); + struct ll_sb_info *sbi = ll_s2sbi(sb); + + if (!IS_ERR_OR_NULL(sbi->ll_debugfs_entry)) + ldebugfs_remove(&sbi->ll_debugfs_entry); + + if (sbi->ll_dt_obd) + sysfs_remove_link(&sbi->ll_kset.kobj, + sbi->ll_dt_obd->obd_type->typ_name); + + if (sbi->ll_md_obd) + sysfs_remove_link(&sbi->ll_kset.kobj, + sbi->ll_md_obd->obd_type->typ_name); + + kobject_put(lsi->lsi_kobj); + + kset_unregister(&sbi->ll_kset); + wait_for_completion(&sbi->ll_kobj_unregister); + + 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) { @@ -1041,14 +1634,14 @@ static void ll_display_extents_info(struct ll_rw_extents_info *io_extents, 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, + end = BIT(i + LL_HIST_START - units); + seq_printf(seq, "%4lu%c - %4lu%c%c: %14lu %4u %4u | " + "%14lu %4u %4u\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) { + if (start == BIT(10)) { start = 1; units += 10; unitp++; @@ -1060,21 +1653,19 @@ static void ll_display_extents_info(struct ll_rw_extents_info *io_extents, 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; + struct timespec64 now; + struct ll_sb_info *sbi = seq->private; + struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; + int k; - cfs_gettimeofday(&now); + ktime_get_real_ts64(&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, now.tv_usec); + if (!sbi->ll_rw_stats_on) { + seq_puts(seq, "disabled\n write anything to this file to activate, then '0' or 'disable' to deactivate\n"); + return 0; + } + seq_printf(seq, "snapshot_time: %llu.%09lu (secs.nsecs)\n", + (s64)now.tv_sec, now.tv_nsec); seq_printf(seq, "%15s %19s | %20s\n", " ", "read", "write"); seq_printf(seq, "%13s %14s %4s %4s | %14s %4s %4s\n", "extents", "calls", "%", "cum%", @@ -1092,24 +1683,25 @@ static int ll_rw_extents_stats_pp_seq_show(struct seq_file *seq, void *v) } 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; - int value = 1, rc = 0; + 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; + __s64 value; - rc = lprocfs_write_helper(buf, len, &value); - if (rc < 0 && (strcmp(buf, "disabled") == 0 || - strcmp(buf, "Disabled") == 0)) - value = 0; + if (len == 0) + return -EINVAL; - if (value == 0) - sbi->ll_rw_stats_on = 0; - else - sbi->ll_rw_stats_on = 1; + value = ll_stats_pid_write(buf, len); + + 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++) { @@ -1121,29 +1713,27 @@ static ssize_t ll_rw_extents_stats_pp_seq_write(struct file *file, return len; } -LPROC_SEQ_FOPS(ll_rw_extents_stats_pp); +LDEBUGFS_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 timespec64 now; + struct ll_sb_info *sbi = seq->private; + struct ll_rw_extents_info *io_extents = &sbi->ll_rw_extents_info; - cfs_gettimeofday(&now); + ktime_get_real_ts64(&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, now.tv_usec); + if (!sbi->ll_rw_stats_on) { + seq_puts(seq, "disabled\n write anything to this file to activate, then '0' or 'disable' to deactivate\n"); + return 0; + } + seq_printf(seq, "snapshot_time: %llu.%09lu (secs.nsecs)\n", + (s64)now.tv_sec, now.tv_nsec); - 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%"); + 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); @@ -1151,24 +1741,26 @@ static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v) 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; - int value = 1, rc = 0; - - rc = lprocfs_write_helper(buf, len, &value); - if (rc < 0 && (strcmp(buf, "disabled") == 0 || - strcmp(buf, "Disabled") == 0)) - value = 0; - - if (value == 0) - sbi->ll_rw_stats_on = 0; - else - sbi->ll_rw_stats_on = 1; + 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; + __s64 value; + + if (len == 0) + return -EINVAL; + + value = ll_stats_pid_write(buf, len); + + 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; @@ -1180,7 +1772,7 @@ static ssize_t ll_rw_extents_stats_seq_write(struct file *file, const char *buf, return len; } -LPROC_SEQ_FOPS(ll_rw_extents_stats); +LDEBUGFS_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, @@ -1217,7 +1809,7 @@ void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t 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 >= BIT(LL_HIST_START << i)) && (i < (LL_HIST_MAX - 1)); i++); if (rw == 0) { io_extents->pp_extents[cur].pp_r_hist.oh_buckets[i]++; @@ -1287,75 +1879,77 @@ void ll_rw_stats_tally(struct ll_sb_info *sbi, pid_t pid, 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; + struct timespec64 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; - cfs_gettimeofday(&now); + ktime_get_real_ts64(&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; - } + if (!sbi->ll_rw_stats_on) { + seq_puts(seq, "disabled\n write anything to this file to activate, then '0' or 'disable' to deactivate\n"); + return 0; + } 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"); - /* 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 ? 'W' : 'R', - 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 ? 'W' : 'R', - 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); - } + seq_printf(seq, "snapshot_time: %llu.%09lu (secs.nsecs)\n", + (s64)now.tv_sec, now.tv_nsec); + 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 %14llu %14llu %17lu %17lu %14llu\n", + 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 %14llu %14llu %17lu %17lu %14llu\n", + 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; - int value = 1, rc = 0; + 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; + __s64 value; - rc = lprocfs_write_helper(buf, len, &value); + if (len == 0) + return -EINVAL; - if (rc < 0 && (strcmp(buf, "disabled") == 0 || - strcmp(buf, "Disabled") == 0)) - value = 0; + value = ll_stats_pid_write(buf, len); - if (value == 0) - sbi->ll_rw_stats_on = 0; - else - sbi->ll_rw_stats_on = 1; + 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; @@ -1369,11 +1963,4 @@ static ssize_t ll_rw_offset_stats_seq_write(struct file *file, const char *buf, 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 */ +LDEBUGFS_SEQ_FOPS(ll_rw_offset_stats);