From: Oleg Drokin <gr...@linuxhacker.ru>
except devices, for now.
Signed-off-by: Oleg Drokin <gr...@linuxhacker.ru>
---
.../lustre/lustre/obdclass/linux/linux-module.c | 116 +++++++++++++--------
1 file changed, 72 insertions(+), 44 deletions(-)
diff --git a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
index 06944b8..abfb671 100644
--- a/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
+++ b/drivers/staging/lustre/lustre/obdclass/linux/linux-module.c
@@ -64,6 +64,7 @@
#include <linux/uaccess.h>
#include <linux/miscdevice.h>
#include <linux/seq_file.h>
+#include <linux/kobject.h>
#include "../../../include/linux/libcfs/libcfs.h"
#include "../../../include/linux/lnet/lnetctl.h"
@@ -216,29 +217,26 @@ struct miscdevice obd_psdev = {
};
-#if defined (CONFIG_PROC_FS)
-static int obd_proc_version_seq_show(struct seq_file *m, void *v)
+static ssize_t version_show(struct kobject *kobj, char *buf)
{
- seq_printf(m, "lustre: %s\nkernel: %s\nbuild: %s\n",
- LUSTRE_VERSION_STRING, "patchless_client", BUILD_VERSION);
- return 0;
+ return snprintf(buf, PAGE_SIZE, "lustre: %s\nkernel: %s\nbuild: %s\n",
+ LUSTRE_VERSION_STRING, "patchless_client",
+ BUILD_VERSION);
}
-LPROC_SEQ_FOPS_RO(obd_proc_version);
-int obd_proc_pinger_seq_show(struct seq_file *m, void *v)
+static ssize_t pinger_show(struct kobject *kobj, char *buf)
{
- seq_printf(m, "%s\n", "on");
- return 0;
+ return snprintf(buf, PAGE_SIZE, "%s\n", "on");
}
-LPROC_SEQ_FOPS_RO(obd_proc_pinger);
-static int obd_proc_health_seq_show(struct seq_file *m, void *v)
+static ssize_t health_show(struct kobject *kobj, char *buf)
{
bool healthy = true;
int i;
+ size_t offset = 0;
if (libcfs_catastrophe)
- seq_printf(m, "LBUG\n");
+ offset = snprintf(buf, PAGE_SIZE, "LBUG\n");
read_lock(&obd_dev_lock);
for (i = 0; i < class_devno_max(); i++) {
@@ -256,8 +254,9 @@ static int obd_proc_health_seq_show(struct seq_file *m,
void *v)
read_unlock(&obd_dev_lock);
if (obd_health_check(NULL, obd)) {
- seq_printf(m, "device %s reported unhealthy\n",
- obd->obd_name);
+ offset += snprintf(buf + offset, PAGE_SIZE - offset,
+ "device %s reported unhealthy\n",
+ obd->obd_name);
healthy = false;
}
class_decref(obd, __func__, current);
@@ -266,32 +265,30 @@ static int obd_proc_health_seq_show(struct seq_file *m,
void *v)
read_unlock(&obd_dev_lock);
if (healthy)
- seq_puts(m, "healthy\n");
+ offset += snprintf(buf + offset, PAGE_SIZE - offset,
+ "healthy\n");
else
- seq_puts(m, "NOT HEALTHY\n");
+ offset += snprintf(buf + offset, PAGE_SIZE - offset,
+ "NOT HEALTHY\n");
- return 0;
+ return offset;
}
-LPROC_SEQ_FOPS_RO(obd_proc_health);
-static int obd_proc_jobid_var_seq_show(struct seq_file *m, void *v)
+static ssize_t jobid_var_show(struct kobject *kobj, char *buf)
{
- seq_printf(m, "%s\n", obd_jobid_var);
- return 0;
+ return snprintf(buf, PAGE_SIZE, "%s\n", obd_jobid_var);
}
-static ssize_t obd_proc_jobid_var_seq_write(struct file *file,
- const char __user *buffer,
- size_t count, loff_t *off)
+static ssize_t jobid_var_store(struct kobject *kobj,
+ const char *buffer,
+ size_t count)
{
if (!count || count > JOBSTATS_JOBID_VAR_MAX_LEN)
return -EINVAL;
memset(obd_jobid_var, 0, JOBSTATS_JOBID_VAR_MAX_LEN + 1);
- /* This might leave the var invalid on error, which is probably fine.*/
- if (copy_from_user(obd_jobid_var, buffer, count))
- return -EFAULT;
+ memcpy(obd_jobid_var, buffer, count);
/* Trim the trailing '\n' if any */
if (obd_jobid_var[count - 1] == '\n')
@@ -299,23 +296,20 @@ static ssize_t obd_proc_jobid_var_seq_write(struct file
*file,
return count;
}
-LPROC_SEQ_FOPS(obd_proc_jobid_var);
-static int obd_proc_jobid_name_seq_show(struct seq_file *m, void *v)
+static ssize_t jobid_name_show(struct kobject *kobj, char *buf)
{
- seq_printf(m, "%s\n", obd_jobid_var);
- return 0;
+ return snprintf(buf, PAGE_SIZE, "%s\n", obd_jobid_node);
}
-static ssize_t obd_proc_jobid_name_seq_write(struct file *file,
- const char __user *buffer,
- size_t count, loff_t *off)
+static ssize_t jobid_name_store(struct kobject *kobj,
+ const char *buffer,
+ size_t count)
{
if (!count || count > JOBSTATS_JOBID_SIZE)
return -EINVAL;
- if (copy_from_user(obd_jobid_node, buffer, count))
- return -EFAULT;
+ memcpy(obd_jobid_node, buffer, count);
obd_jobid_node[count] = 0;
@@ -325,22 +319,31 @@ static ssize_t obd_proc_jobid_name_seq_write(struct file
*file,
return count;
}
-LPROC_SEQ_FOPS(obd_proc_jobid_name);
+#if defined(CONFIG_PROC_FS)
/* Root for /proc/fs/lustre */
struct proc_dir_entry *proc_lustre_root = NULL;
EXPORT_SYMBOL(proc_lustre_root);
struct lprocfs_vars lprocfs_base[] = {
- { "version", &obd_proc_version_fops },
- { "pinger", &obd_proc_pinger_fops },
- { "health_check", &obd_proc_health_fops },
- { "jobid_var", &obd_proc_jobid_var_fops },
- { .name = "jobid_name",
- .fops = &obd_proc_jobid_name_fops},
{ NULL }
};
+LUSTRE_RO_ATTR(version);
+LUSTRE_RO_ATTR(pinger);
+LUSTRE_RO_ATTR(health);
+LUSTRE_RW_ATTR(jobid_var);
+LUSTRE_RW_ATTR(jobid_name);
+
+static struct attribute *lustre_attrs[] = {
+ LUSTRE_ATTR_LIST(version),
+ LUSTRE_ATTR_LIST(pinger),
+ LUSTRE_ATTR_LIST(health),
+ LUSTRE_ATTR_LIST(jobid_name),
+ LUSTRE_ATTR_LIST(jobid_var),
+ NULL,
+};
+
static void *obd_device_list_seq_start(struct seq_file *p, loff_t *pos)
{
if (*pos >= class_devno_max())
@@ -419,15 +422,36 @@ struct file_operations obd_device_list_fops = {
.release = seq_release,
};
+struct kobject lustre_kobj;
+EXPORT_SYMBOL(lustre_kobj);
+
+static DECLARE_COMPLETION(lustre_kobj_unregister);
+static void lustre_sysfs_release(struct kobject *kobj)
+{
+ complete(&lustre_kobj_unregister);
+}
+
+static struct kobj_type lustre_fsroot_ktype = {
+ .default_attrs = lustre_attrs,
+ .sysfs_ops = &lustre_sysfs_ops,
+ .release = lustre_sysfs_release,
+};
+
int class_procfs_init(void)
{
int rc = 0;
+ rc = kobject_init_and_add(&lustre_kobj, &lustre_fsroot_ktype,
+ fs_kobj, "lustre");
+ if (rc)
+ goto out;
+
proc_lustre_root = lprocfs_register("fs/lustre", NULL,
- lprocfs_base, NULL);
+ NULL, NULL);
if (IS_ERR(proc_lustre_root)) {
rc = PTR_ERR(proc_lustre_root);
proc_lustre_root = NULL;
+ kobject_put(&lustre_kobj);
goto out;
}
@@ -444,6 +468,10 @@ int class_procfs_clean(void)
if (proc_lustre_root) {
lprocfs_remove(&proc_lustre_root);
}
+
+ kobject_put(&lustre_kobj);
+ wait_for_completion(&lustre_kobj_unregister);
+
return 0;
}
#endif /* CONFIG_PROC_FS */
--
2.1.0
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