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staging/lustre/llite: move /proc/fs/lustre/llite/statahead_{max, agl} to sysfs 

Move statahead_max and statahead_agl files from /proc/fs/lustre/llite/*
to /sys/fs/lustre/llite/*/

Signed-off-by: Oleg Drokin <green@linuxhacker.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Oleg Drokin 2015-05-21 15:31:50 -04:00 committed by Greg Kroah-Hartman
parent 62cf4b1315
commit 4081a3201a
2 changed files with 52 additions and 30 deletions
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66
drivers/staging/lustre/lustre/llite/lproc_llite.c
View File

@ -603,55 +603,61 @@ static ssize_t stats_track_gid_store(struct kobject *kobj,
}
LUSTRE_RW_ATTR(stats_track_gid);
static int ll_statahead_max_seq_show(struct seq_file *m, void *v)
static ssize_t statahead_max_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
ll_kobj);
seq_printf(m, "%u\n", sbi->ll_sa_max);
return 0;
return sprintf(buf, "%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)
static ssize_t statahead_max_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer,
size_t count)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
int val, rc;
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
ll_kobj);
int rc;
unsigned long val;
rc = lprocfs_write_helper(buffer, count, &val);
rc = kstrtoul(buffer, 10, &val);
if (rc)
return rc;
if (val >= 0 && val <= LL_SA_RPC_MAX)
if (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",
CERROR("Bad statahead_max value %lu. Valid values are in the range [0, %d]\n",
val, LL_SA_RPC_MAX);
return count;
}
LPROC_SEQ_FOPS(ll_statahead_max);
LUSTRE_RW_ATTR(statahead_max);
static int ll_statahead_agl_seq_show(struct seq_file *m, void *v)
static ssize_t statahead_agl_show(struct kobject *kobj,
struct attribute *attr,
char *buf)
{
struct super_block *sb = m->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
ll_kobj);
seq_printf(m, "%u\n", sbi->ll_flags & LL_SBI_AGL_ENABLED ? 1 : 0);
return 0;
return sprintf(buf, "%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)
static ssize_t statahead_agl_store(struct kobject *kobj,
struct attribute *attr,
const char *buffer,
size_t count)
{
struct super_block *sb = ((struct seq_file *)file->private_data)->private;
struct ll_sb_info *sbi = ll_s2sbi(sb);
int val, rc;
struct ll_sb_info *sbi = container_of(kobj, struct ll_sb_info,
ll_kobj);
int rc;
unsigned long val;
rc = lprocfs_write_helper(buffer, count, &val);
rc = kstrtoul(buffer, 10, &val);
if (rc)
return rc;
@ -662,7 +668,7 @@ static ssize_t ll_statahead_agl_seq_write(struct file *file,
return count;
}
LPROC_SEQ_FOPS(ll_statahead_agl);
LUSTRE_RW_ATTR(statahead_agl);
static int ll_statahead_stats_seq_show(struct seq_file *m, void *v)
{
@ -838,8 +844,6 @@ static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
{ "site", &ll_site_stats_fops, NULL, 0 },
/* { "filegroups", lprocfs_rd_filegroups, 0, 0 }, */
{ "max_cached_mb", &ll_max_cached_mb_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 },
@ -870,6 +874,8 @@ static struct attribute *llite_attrs[] = {
&lustre_attr_stats_track_pid.attr,
&lustre_attr_stats_track_ppid.attr,
&lustre_attr_stats_track_gid.attr,
&lustre_attr_statahead_max.attr,
&lustre_attr_statahead_agl.attr,
NULL,
};

16
drivers/staging/lustre/sysfs-fs-lustre
View File

@ -145,3 +145,19 @@ Contact: "Oleg Drokin" <oleg.drokin@intel.com>
Description:
Limit Lustre vfs operations gathering to just a single gid.
0 to track everything.
What: /sys/fs/lustre/llite/<fsname>-<uuid>/statahead_max
Date: May 2015
Contact: "Oleg Drokin" <oleg.drokin@intel.com>
Description:
Controls maximum number of statahead requests to send when
sequential readdir+stat pattern is detected.
What: /sys/fs/lustre/llite/<fsname>-<uuid>/statahead_agl
Date: May 2015
Contact: "Oleg Drokin" <oleg.drokin@intel.com>
Description:
Controls if AGL (async glimpse ahead - obtain object information
from OSTs in parallel with MDS during statahead) should be
enabled or disabled.
0 to disable, 1 to enable.