LU-8066 mdt: migrate procfs files to sysfs

[fs/lustre-release.git] / lustre / target / tgt_grant.c

diff --git a/lustre/target/tgt_grant.c b/lustre/target/tgt_grant.c
index e832bc9..e863581 100644 (file)
--- a/lustre/target/tgt_grant.c
+++ b/lustre/target/tgt_grant.c
@@ -1545,65 +1545,68 @@ EXPORT_SYMBOL(tgt_grant_commit_cb_add);
 /**
  * Show estimate of total amount of dirty data on clients.
  *
- * \param[in] m                seq_file handle
- * \param[in] data     unused for single entry
+ * @kobj               kobject embedded in obd_device
+ * @attr               unused
+ * @buf                        buf used by sysfs to print out data
  *
- * \retval             0 on success
- * \retval             negative value on error
+ * Return:             0 on success
+ *                     negative value on error
  */
-int tgt_tot_dirty_seq_show(struct seq_file *m, void *data)
+ssize_t tot_dirty_show(struct kobject *kobj, struct attribute *attr,
+                      char *buf)
 {
-       struct obd_device *obd = m->private;
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
        struct tg_grants_data *tgd;
 
-       LASSERT(obd != NULL);
        tgd = &obd->u.obt.obt_lut->lut_tgd;
-       seq_printf(m, "%llu\n", tgd->tgd_tot_dirty);
-       return 0;
+       return scnprintf(buf, PAGE_SIZE, "%llu\n", tgd->tgd_tot_dirty);
 }
-EXPORT_SYMBOL(tgt_tot_dirty_seq_show);
+EXPORT_SYMBOL(tot_dirty_show);
 
 /**
  * Show total amount of space granted to clients.
  *
- * \param[in] m                seq_file handle
- * \param[in] data     unused for single entry
+ * @kobj               kobject embedded in obd_device
+ * @attr               unused
+ * @buf                        buf used by sysfs to print out data
  *
- * \retval             0 on success
- * \retval             negative value on error
+ * Return:             0 on success
+ *                     negative value on error
  */
-int tgt_tot_granted_seq_show(struct seq_file *m, void *data)
+ssize_t tot_granted_show(struct kobject *kobj, struct attribute *attr,
+                        char *buf)
 {
-       struct obd_device *obd = m->private;
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
        struct tg_grants_data *tgd;
 
-       LASSERT(obd != NULL);
        tgd = &obd->u.obt.obt_lut->lut_tgd;
-       seq_printf(m, "%llu\n", tgd->tgd_tot_granted);
-       return 0;
+       return scnprintf(buf, PAGE_SIZE, "%llu\n", tgd->tgd_tot_granted);
 }
-EXPORT_SYMBOL(tgt_tot_granted_seq_show);
+EXPORT_SYMBOL(tot_granted_show);
 
 /**
  * Show total amount of space used by IO in progress.
  *
- * \param[in] m                seq_file handle
- * \param[in] data     unused for single entry
+ * @kobj               kobject embedded in obd_device
+ * @attr               unused
+ * @buf                        buf used by sysfs to print out data
  *
- * \retval             0 on success
- * \retval             negative value on error
+ * Return:             0 on success
+ *                     negative value on error
  */
-int tgt_tot_pending_seq_show(struct seq_file *m, void *data)
+ssize_t tot_pending_show(struct kobject *kobj, struct attribute *attr,
+                        char *buf)
 {
-       struct obd_device *obd = m->private;
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
        struct tg_grants_data *tgd;
 
-       LASSERT(obd != NULL);
        tgd = &obd->u.obt.obt_lut->lut_tgd;
-       seq_printf(m, "%llu\n", tgd->tgd_tot_pending);
-       return 0;
+       return scnprintf(buf, PAGE_SIZE, "%llu\n", tgd->tgd_tot_pending);
 }
-EXPORT_SYMBOL(tgt_tot_pending_seq_show);
+EXPORT_SYMBOL(tot_pending_show);
 
 /**
  * Show if grants compatibility mode is disabled.
@@ -1614,21 +1617,22 @@ EXPORT_SYMBOL(tgt_tot_pending_seq_show);
  * block, (i.e. typically 4kB units), but underlaying file system might have
  * block size bigger than page size, e.g. ZFS. See LU-2049 for details.
  *
- * \param[in] m                seq_file handle
- * \param[in] data     unused for single entry
+ * @kobj               kobject embedded in obd_device
+ * @attr               unused
+ * @buf                        buf used by sysfs to print out data
  *
- * \retval             0 on success
- * \retval             negative value on error
+ * Return:             string length of @buf output on success
  */
-int tgt_grant_compat_disable_seq_show(struct seq_file *m, void *data)
+ssize_t grant_compat_disable_show(struct kobject *kobj, struct attribute *attr,
+                                 char *buf)
 {
-       struct obd_device *obd = m->private;
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
        struct tg_grants_data *tgd = &obd->u.obt.obt_lut->lut_tgd;
 
-       seq_printf(m, "%u\n", tgd->tgd_grant_compat_disable);
-       return 0;
+       return scnprintf(buf, PAGE_SIZE, "%u\n", tgd->tgd_grant_compat_disable);
 }
-EXPORT_SYMBOL(tgt_grant_compat_disable_seq_show);
+EXPORT_SYMBOL(grant_compat_disable_show);
 
 /**
  * Change grant compatibility mode.
@@ -1636,27 +1640,27 @@ EXPORT_SYMBOL(tgt_grant_compat_disable_seq_show);
  * Setting tgd_grant_compat_disable prohibit any space granting to clients
  * not supporting OBD_CONNECT_GRANT_PARAM. See details above.
  *
- * \param[in] file     proc file
- * \param[in] buffer   string which represents mode
- *                     1: disable compatibility mode
- *                     0: enable compatibility mode
- * \param[in] count    \a buffer length
- * \param[in] off      unused for single entry
+ * @kobj       kobject embedded in obd_device
+ * @attr       unused
+ * @buffer     string which represents mode
+ *             1: disable compatibility mode
+ *             0: enable compatibility mode
+ * @count      @buffer length
  *
- * \retval             \a count on success
- * \retval             negative number on error
+ * Return:     @count on success
+ *             negative number on error
  */
-ssize_t tgt_grant_compat_disable_seq_write(struct file *file,
-                                          const char __user *buffer,
-                                          size_t count, loff_t *off)
+ssize_t grant_compat_disable_store(struct kobject *kobj,
+                                  struct attribute *attr,
+                                  const char *buffer, size_t count)
 {
-       struct seq_file *m = file->private_data;
-       struct obd_device *obd = m->private;
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
        struct tg_grants_data *tgd = &obd->u.obt.obt_lut->lut_tgd;
        bool val;
        int rc;
 
-       rc = kstrtobool_from_user(buffer, count, &val);
+       rc = kstrtobool(buffer, &val);
        if (rc)
                return rc;
 
@@ -1664,4 +1668,4 @@ ssize_t tgt_grant_compat_disable_seq_write(struct file *file,
 
        return count;
 }
-EXPORT_SYMBOL(tgt_grant_compat_disable_seq_write);
+EXPORT_SYMBOL(grant_compat_disable_store);