/* /proc/lustre/llite mount point registration */
struct proc_dir_entry *proc_lustre_fs_root;
struct file_operations llite_dump_pgcache_fops;
+struct file_operations ll_ra_stats_fops;
+struct file_operations llite_wait_times_fops;
+
#ifndef LPROCFS
int lprocfs_register_mountpoint(struct proc_dir_entry *parent,
}
-#if 0
-static int ll_rd_path(char *page, char **start, off_t off, int count, int *eof,
- void *data)
-{
- return 0;
-}
-#endif
-
static int ll_rd_fstype(char *page, char **start, off_t off, int count,
int *eof, void *data)
{
struct ll_sb_info *sbi = ll_s2sbi(sb);
int readahead;
ENTRY;
-
- if (1 != sscanf(buffer, "%d", &readahead))
- RETURN(-EINVAL);
+
+ if (sscanf(buffer, "%d", &readahead) != 1)
+ RETURN(-EINVAL);
if (readahead)
sbi->ll_flags |= LL_SBI_READAHEAD;
RETURN(count);
}
+static int ll_wr_config_update(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct super_block *sb = (struct super_block*)data;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ ENTRY;
+
+ CWARN("Starting a LOV/OST update !\n");
+ RETURN(ll_process_config_update(sbi, 0));
+}
+
+static int ll_rd_max_read_ahead_mb(char *page, char **start, off_t off,
+ int count, int *eof, void *data)
+{
+ struct super_block *sb = data;
+ struct ll_sb_info *sbi = ll_s2sbi(sb);
+ unsigned val;
+
+ spin_lock(&sbi->ll_lock);
+ val = (sbi->ll_ra_info.ra_max_pages << PAGE_CACHE_SHIFT) >> 20;
+ spin_unlock(&sbi->ll_lock);
+
+ return snprintf(page, count, "%u\n", val);
+}
+
+static int ll_wr_max_read_ahead_mb(struct file *file, const char *buffer,
+ unsigned long count, void *data)
+{
+ struct super_block *sb = data;
+ 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 > (num_physpages << PAGE_SHIFT) >> 20)
+ return -ERANGE;
+
+ spin_lock(&sbi->ll_lock);
+ sbi->ll_ra_info.ra_max_pages = (val << 20) >> PAGE_CACHE_SHIFT;
+ spin_unlock(&sbi->ll_lock);
+
+ return count;
+}
+
static struct lprocfs_vars lprocfs_obd_vars[] = {
{ "uuid", ll_rd_sb_uuid, 0, 0 },
//{ "mntpt_path", ll_rd_path, 0, 0 },
{ "filesfree", ll_rd_filesfree, 0, 0 },
//{ "filegroups", lprocfs_rd_filegroups, 0, 0 },
{ "read_ahead", ll_rd_read_ahead, ll_wr_read_ahead, 0 },
+ { "config_update", 0, ll_wr_config_update, 0 },
+ { "max_read_ahead_mb", ll_rd_max_read_ahead_mb,
+ ll_wr_max_read_ahead_mb, 0 },
{ 0 }
};
char name[MAX_STRING_SIZE + 1];
int err, id;
struct lprocfs_stats *svc_stats = NULL;
+ struct proc_dir_entry *mdc_symlink, *osc_symlink;
struct proc_dir_entry *entry;
ENTRY;
entry->proc_fops = &llite_dump_pgcache_fops;
entry->data = sbi;
+ entry = create_proc_entry("wait_times", 0444, sbi->ll_proc_root);
+ if (entry == NULL)
+ GOTO(out, err = -ENOMEM);
+ entry->proc_fops = &llite_wait_times_fops;
+ entry->data = sbi;
+
+ entry = create_proc_entry("read_ahead_stats", 0444, sbi->ll_proc_root);
+ if (entry == NULL)
+ GOTO(out, err = -ENOMEM);
+ entry->proc_fops = &ll_ra_stats_fops;
+ entry->data = sbi;
+
svc_stats = lprocfs_alloc_stats(LPROC_LL_FILE_OPCODES);
if (svc_stats == NULL) {
err = -ENOMEM;
LASSERT(obd->obd_type != NULL);
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;
-
- 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)
+ snprintf(name, MAX_STRING_SIZE, "../../%s/%s",
+ obd->obd_type->typ_name, obd->obd_name);
+ mdc_symlink = proc_symlink(obd->obd_type->typ_name, sbi->ll_proc_root,
+ name);
+ if (mdc_symlink == NULL) {
+ err = -ENOMEM;
goto out;
+ }
/* OSC */
obd = class_name2obd(osc);
LASSERT(obd->obd_type != NULL);
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;
+ snprintf(name, MAX_STRING_SIZE, "../../%s/%s",
+ obd->obd_type->typ_name, obd->obd_name);
+ osc_symlink = proc_symlink(obd->obd_type->typ_name, sbi->ll_proc_root,
+ name);
+ if (osc_symlink == NULL)
+ err = -ENOMEM;
+
- 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) {
if (svc_stats)
return 0;
}
- spin_lock(&sbi->ll_pglist_lock);
+ spin_lock(&sbi->ll_lock);
llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_proc_item);
if (llap != NULL) {
int has_flags = 0;
struct page *page = llap->llap_page;
- seq_printf(seq, "%lu | %p %p | %p %p %lu [",
- sbi->ll_pglist_gen,
+ seq_printf(seq, "%lu | %p %p | %p %p %lu [",
+ sbi->ll_pglist_gen,
llap, llap->llap_cookie,
page, page->mapping->host, page->index);
seq_page_flag(seq, page, locked, has_flags);
seq_page_flag(seq, page, highmem, has_flags);
if (!has_flags)
seq_puts(seq, "-]\n");
- else
+ else
seq_puts(seq, "]\n");
}
- spin_unlock(&sbi->ll_pglist_lock);
+ spin_unlock(&sbi->ll_lock);
return 0;
}
return (void *)1;
}
-static void *llite_dump_pgcache_seq_next(struct seq_file *seq, void *v,
+static void *llite_dump_pgcache_seq_next(struct seq_file *seq, void *v,
loff_t *pos)
{
struct ll_async_page *llap, *dummy_llap = seq->private;
/* we've just displayed the llap that is after us in the list.
* we advance to a position beyond it, returning null if there
* isn't another llap in the list beyond that new position. */
- spin_lock(&sbi->ll_pglist_lock);
+ spin_lock(&sbi->ll_lock);
llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_proc_item);
list_del_init(&dummy_llap->llap_proc_item);
if (llap) {
list_add(&dummy_llap->llap_proc_item, &llap->llap_proc_item);
llap = llite_pglist_next_llap(sbi, &dummy_llap->llap_proc_item);
}
- spin_unlock(&sbi->ll_pglist_lock);
+ spin_unlock(&sbi->ll_lock);
++*pos;
if (llap == NULL) {
seq = file->private_data;
seq->private = llap;
- spin_lock(&sbi->ll_pglist_lock);
+ spin_lock(&sbi->ll_lock);
list_add(&llap->llap_proc_item, &sbi->ll_pglist);
- spin_unlock(&sbi->ll_pglist_lock);
+ spin_unlock(&sbi->ll_lock);
return 0;
}
struct ll_async_page *llap = seq->private;
struct ll_sb_info *sbi = llap->llap_cookie;
- spin_lock(&sbi->ll_pglist_lock);
+ spin_lock(&sbi->ll_lock);
if (!list_empty(&llap->llap_proc_item))
list_del_init(&llap->llap_proc_item);
- spin_unlock(&sbi->ll_pglist_lock);
+ spin_unlock(&sbi->ll_lock);
OBD_FREE(llap, sizeof(*llap));
return seq_release(inode, file);
}
struct file_operations llite_dump_pgcache_fops = {
+ .owner = THIS_MODULE,
.open = llite_dump_pgcache_seq_open,
.read = seq_read,
.release = llite_dump_pgcache_seq_release,
};
+static int ll_ra_stats_seq_show(struct seq_file *seq, void *v)
+{
+ struct timeval now;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_ra_info *ra = &sbi->ll_ra_info;
+ int i;
+ static char *ra_stat_strings[] = {
+ [RA_STAT_HIT] = "hits",
+ [RA_STAT_MISS] = "misses",
+ [RA_STAT_DISTANT_READPAGE] = "readpage not consecutive",
+ [RA_STAT_MISS_IN_WINDOW] = "miss inside window",
+ [RA_STAT_FAILED_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",
+ };
+
+ do_gettimeofday(&now);
+
+ spin_lock(&sbi->ll_lock);
+
+ seq_printf(seq, "snapshot_time: %lu:%lu (secs:usecs)\n",
+ now.tv_sec, now.tv_usec);
+ seq_printf(seq, "pending issued pages: %lu\n",
+ ra->ra_cur_pages);
+
+ for(i = 0; i < _NR_RA_STAT; i++)
+ seq_printf(seq, "%-25s %lu\n", ra_stat_strings[i],
+ ra->ra_stats[i]);
+
+ spin_unlock(&sbi->ll_lock);
+
+ return 0;
+}
+
+static void *ll_ra_stats_seq_start(struct seq_file *p, loff_t *pos)
+{
+ if (*pos == 0)
+ return (void *)1;
+ return NULL;
+}
+static void *ll_ra_stats_seq_next(struct seq_file *p, void *v, loff_t *pos)
+{
+ ++*pos;
+ return NULL;
+}
+static void ll_ra_stats_seq_stop(struct seq_file *p, void *v)
+{
+}
+struct seq_operations ll_ra_stats_seq_sops = {
+ .start = ll_ra_stats_seq_start,
+ .stop = ll_ra_stats_seq_stop,
+ .next = ll_ra_stats_seq_next,
+ .show = ll_ra_stats_seq_show,
+};
+
+static int ll_ra_stats_seq_open(struct inode *inode, struct file *file)
+{
+ struct proc_dir_entry *dp = PDE(inode);
+ struct seq_file *seq;
+ int rc;
+
+ rc = seq_open(file, &ll_ra_stats_seq_sops);
+ if (rc)
+ return rc;
+ seq = file->private_data;
+ seq->private = dp->data;
+ return 0;
+}
+
+static ssize_t ll_ra_stats_seq_write(struct file *file, const char *buf,
+ size_t len, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+ struct ll_ra_info *ra = &sbi->ll_ra_info;
+
+ spin_lock(&sbi->ll_lock);
+ memset(ra->ra_stats, 0, sizeof(ra->ra_stats));
+ spin_unlock(&sbi->ll_lock);
+
+ return len;
+}
+
+struct file_operations ll_ra_stats_fops = {
+ .owner = THIS_MODULE,
+ .open = ll_ra_stats_seq_open,
+ .read = seq_read,
+ .write = ll_ra_stats_seq_write,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+#define PRINTF_STIME(stime) (unsigned long)(stime)->st_num, \
+ lprocfs_stime_avg_ms(stime), lprocfs_stime_avg_us(stime)
+
+static int llite_wait_times_seq_show(struct seq_file *seq, void *v)
+{
+ struct ll_sb_info *sbi = seq->private;
+ struct timeval now;
+
+ do_gettimeofday(&now);
+
+ spin_lock(&sbi->ll_lock);
+
+ seq_printf(seq, "snapshot_time: %lu:%lu (secs:usecs)\n\n",
+ now.tv_sec, now.tv_usec);
+
+ seq_printf(seq, "lock wait times: (num, average ms)\n");
+ seq_printf(seq, "\tread\t%lu\t%lu.%04lu\n",
+ PRINTF_STIME(&sbi->ll_read_stime));
+ seq_printf(seq, "\twrite\t%lu\t%lu.%04lu\n",
+ PRINTF_STIME(&sbi->ll_write_stime));
+ seq_printf(seq, "\tgroup\t%lu\t%lu.%04lu\n",
+ PRINTF_STIME(&sbi->ll_grouplock_stime));
+ seq_printf(seq, "\tseek\t%lu\t%lu.%04lu\n",
+ PRINTF_STIME(&sbi->ll_seek_stime));
+ seq_printf(seq, "\tsetattr\t%lu\t%lu.%04lu\n\n",
+ PRINTF_STIME(&sbi->ll_setattr_stime));
+
+ seq_printf(seq, "io path wait times: (num, average ms)\n");
+ seq_printf(seq, "\tll_brw\t%lu\t%lu.%04lu\n",
+ PRINTF_STIME(&sbi->ll_brw_stime));
+#if 0
+ seq_printf(seq, "\tdone\t%lu\t%lu.%04lu\n",
+ PRINTF_STIME(&sbi->ll_done_stime));
+#endif
+
+ spin_unlock(&sbi->ll_lock);
+
+ return 0;
+}
+#undef pct
+
+static void *llite_wait_times_seq_start(struct seq_file *p, loff_t *pos)
+{
+ if (*pos == 0)
+ return (void *)1;
+ return NULL;
+}
+static void *llite_wait_times_seq_next(struct seq_file *p, void *v, loff_t *pos)
+{
+ ++*pos;
+ return NULL;
+}
+static void llite_wait_times_seq_stop(struct seq_file *p, void *v)
+{
+}
+struct seq_operations llite_wait_times_seq_sops = {
+ .start = llite_wait_times_seq_start,
+ .stop = llite_wait_times_seq_stop,
+ .next = llite_wait_times_seq_next,
+ .show = llite_wait_times_seq_show,
+};
+
+static int llite_wait_times_seq_open(struct inode *inode, struct file *file)
+{
+ struct proc_dir_entry *dp = PDE(inode);
+ struct seq_file *seq;
+ int rc;
+
+ rc = seq_open(file, &llite_wait_times_seq_sops);
+ if (rc)
+ return rc;
+ seq = file->private_data;
+ seq->private = dp->data;
+ return 0;
+}
+
+static ssize_t llite_wait_times_seq_write(struct file *file, const char *buf,
+ size_t len, loff_t *off)
+{
+ struct seq_file *seq = file->private_data;
+ struct ll_sb_info *sbi = seq->private;
+
+ spin_lock(&sbi->ll_lock);
+ memset(&sbi->ll_read_stime, 0, sizeof(sbi->ll_read_stime));
+ memset(&sbi->ll_write_stime, 0, sizeof(sbi->ll_write_stime));
+ memset(&sbi->ll_grouplock_stime, 0, sizeof(sbi->ll_grouplock_stime));
+ memset(&sbi->ll_seek_stime, 0, sizeof(sbi->ll_seek_stime));
+ memset(&sbi->ll_setattr_stime, 0, sizeof(sbi->ll_setattr_stime));
+ memset(&sbi->ll_brw_stime, 0, sizeof(sbi->ll_brw_stime));
+// memset(&sbi->ll_done_stime, 0, sizeof(sbi->ll_done_stime));
+ spin_unlock(&sbi->ll_lock);
+
+ return len;
+}
+
+struct file_operations llite_wait_times_fops = {
+ .owner = THIS_MODULE,
+ .open = llite_wait_times_seq_open,
+ .read = seq_read,
+ .write = llite_wait_times_seq_write,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
#endif /* LPROCFS */
git://git.whamcloud.com / fs / lustre-release.git / blobdiff