From: Oleg Drokin <gr...@linuxhacker.ru>
Move statahead_max and statahead_agl files from /proc/fs/lustre/llite/*
to /sys/fs/lustre/llite/*/
Signed-off-by: Oleg Drokin <gr...@linuxhacker.ru>
---
drivers/staging/lustre/lustre/llite/lproc_llite.c | 60 +++++++++++------------
drivers/staging/lustre/sysfs-fs-lustre | 16 ++++++
2 files changed, 46 insertions(+), 30 deletions(-)
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c
b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index 4f68142..43e7423 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -576,55 +576,55 @@ 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, 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,
+ 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, 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,
+ 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;
@@ -635,7 +635,7 @@ 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)
{
@@ -811,8 +811,6 @@ 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 },
@@ -843,6 +841,8 @@ 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,
};
diff --git a/drivers/staging/lustre/sysfs-fs-lustre
b/drivers/staging/lustre/sysfs-fs-lustre
index acf85cc..2920ead 100644
--- a/drivers/staging/lustre/sysfs-fs-lustre
+++ b/drivers/staging/lustre/sysfs-fs-lustre
@@ -145,3 +145,19 @@ Contact: "Oleg Drokin" <oleg.dro...@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.dro...@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.dro...@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.
--
2.1.0
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