From: Oleg Drokin <gr...@linuxhacker.ru>
Move lazystatfs file 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 | 31 +++++++++++++----------
drivers/staging/lustre/sysfs-fs-lustre | 8 ++++++
2 files changed, 25 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c
b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index aa0e12b..03d4127 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -686,24 +686,27 @@ static int ll_statahead_stats_seq_show(struct seq_file
*m, void *v)
}
LPROC_SEQ_FOPS_RO(ll_statahead_stats);
-static int ll_lazystatfs_seq_show(struct seq_file *m, void *v)
+static ssize_t lazystatfs_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_LAZYSTATFS ? 1 : 0);
- return 0;
+ return sprintf(buf, "%u\n", sbi->ll_flags & LL_SBI_LAZYSTATFS ? 1 : 0);
}
-static ssize_t ll_lazystatfs_seq_write(struct file *file,
- const char __user *buffer,
- size_t count, loff_t *off)
+static ssize_t lazystatfs_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;
@@ -714,7 +717,7 @@ static ssize_t ll_lazystatfs_seq_write(struct file *file,
return count;
}
-LPROC_SEQ_FOPS(ll_lazystatfs);
+LUSTRE_RW_ATTR(lazystatfs);
static int ll_max_easize_seq_show(struct seq_file *m, void *v)
{
@@ -845,7 +848,6 @@ static struct lprocfs_vars lprocfs_llite_obd_vars[] = {
/* { "filegroups", lprocfs_rd_filegroups, 0, 0 }, */
{ "max_cached_mb", &ll_max_cached_mb_fops, NULL },
{ "statahead_stats", &ll_statahead_stats_fops, NULL, 0 },
- { "lazystatfs", &ll_lazystatfs_fops, NULL },
{ "max_easize", &ll_max_easize_fops, NULL, 0 },
{ "default_easize", &ll_default_easize_fops, NULL, 0 },
{ "max_cookiesize", &ll_max_cookiesize_fops, NULL, 0 },
@@ -876,6 +878,7 @@ static struct attribute *llite_attrs[] = {
&lustre_attr_stats_track_gid.attr,
&lustre_attr_statahead_max.attr,
&lustre_attr_statahead_agl.attr,
+ &lustre_attr_lazystatfs.attr,
NULL,
};
diff --git a/drivers/staging/lustre/sysfs-fs-lustre
b/drivers/staging/lustre/sysfs-fs-lustre
index 2920ead..184b387 100644
--- a/drivers/staging/lustre/sysfs-fs-lustre
+++ b/drivers/staging/lustre/sysfs-fs-lustre
@@ -161,3 +161,11 @@ Description:
from OSTs in parallel with MDS during statahead) should be
enabled or disabled.
0 to disable, 1 to enable.
+
+What: /sys/fs/lustre/llite/<fsname>-<uuid>/lazystatfs
+Date: May 2015
+Contact: "Oleg Drokin" <oleg.dro...@intel.com>
+Description:
+ Controls statfs(2) behaviour in the face of down servers.
+ If 0, always wait for all servers to come online,
+ if 1, ignote inactive servers.
--
2.1.0
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