LU-8066 mdc: migrate simple proc entries to sysfs

Two simple proc entries dom_min_repsize and lsom can be moved
to sys/fs.

Change-Id: Ieb8af26b1936b8b3579ceb6bcc113c56444eec45
Signed-off-by: James Simmons <jsimmons@infradead.org>
Reviewed-on: https://review.whamcloud.com/c/fs/lustre-release/+/56849
Tested-by: jenkins <devops@whamcloud.com>
Tested-by: Maloo <maloo@whamcloud.com>
Reviewed-by: Andreas Dilger <adilger@whamcloud.com>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Reviewed-by: Timothy Day <timday@amazon.com>
Reviewed-by: Oleg Drokin <green@whamcloud.com>

diff --git a/lustre/mdc/lproc_mdc.c b/lustre/mdc/lproc_mdc.c
index 75a4c75..e5230cb 100644 (file)
--- a/lustre/mdc/lproc_mdc.c
+++ b/lustre/mdc/lproc_mdc.c
@@ -308,6 +308,64 @@ mdc_cached_mb_seq_write(struct file *file, const char __user *buffer,
 }
 LPROC_SEQ_FOPS(mdc_cached_mb);
 
+static ssize_t dom_min_repsize_show(struct kobject *kobj,
+                                   struct attribute *attr, char *buf)
+{
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
+
+       return scnprintf(buf, PAGE_SIZE, "%u\n",
+                        obd->u.cli.cl_dom_min_inline_repsize);
+}
+
+static ssize_t dom_min_repsize_store(struct kobject *kobj,
+                                    struct attribute *attr,
+                                    const char *buffer, size_t count)
+{
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
+       unsigned int val;
+       int rc;
+
+       rc = kstrtouint(buffer, 0, &val);
+       if (rc < 0)
+               return rc;
+
+       if (val > MDC_DOM_MAX_INLINE_REPSIZE)
+               return -ERANGE;
+
+       obd->u.cli.cl_dom_min_inline_repsize = val;
+       return count;
+}
+LUSTRE_RW_ATTR(dom_min_repsize);
+
+static ssize_t lsom_show(struct kobject *kobj, struct attribute *attr,
+                        char *buf)
+{
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
+
+       return scnprintf(buf, PAGE_SIZE, "%s\n",
+                        obd->u.cli.cl_lsom_update ? "On" : "Off");
+}
+
+static ssize_t lsom_store(struct kobject *kobj, struct attribute *attr,
+                         const char *buffer, size_t count)
+{
+       struct obd_device *obd = container_of(kobj, struct obd_device,
+                                             obd_kset.kobj);
+       bool val;
+       int rc;
+
+       rc = kstrtobool(buffer, &val);
+       if (rc < 0)
+               return rc;
+
+       obd->u.cli.cl_lsom_update = val;
+       return count;
+}
+LUSTRE_RW_ATTR(lsom);
+
 static int mdc_unstable_stats_seq_show(struct seq_file *m, void *v)
 {
        struct obd_device *obd = m->private;
@@ -510,64 +568,6 @@ static ssize_t mdc_stats_seq_write(struct file *file,
 }
 LPROC_SEQ_FOPS(mdc_stats);
 
-static int mdc_dom_min_repsize_seq_show(struct seq_file *m, void *v)
-{
-       struct obd_device *obd = m->private;
-
-       seq_printf(m, "%u\n", obd->u.cli.cl_dom_min_inline_repsize);
-
-       return 0;
-}
-
-static ssize_t mdc_dom_min_repsize_seq_write(struct file *file,
-                                            const char __user *buffer,
-                                            size_t count, loff_t *off)
-{
-       struct seq_file *m = file->private_data;
-       struct obd_device *obd = m->private;
-       unsigned int val;
-       int rc;
-
-       rc = kstrtouint_from_user(buffer, count, 0, &val);
-       if (rc)
-               return rc;
-
-       if (val > MDC_DOM_MAX_INLINE_REPSIZE)
-               return -ERANGE;
-
-       obd->u.cli.cl_dom_min_inline_repsize = val;
-       return count;
-}
-LPROC_SEQ_FOPS(mdc_dom_min_repsize);
-
-static int mdc_lsom_seq_show(struct seq_file *m, void *v)
-{
-       struct obd_device *dev = m->private;
-
-       seq_printf(m, "%s\n", dev->u.cli.cl_lsom_update ? "On" : "Off");
-
-       return 0;
-}
-
-static ssize_t mdc_lsom_seq_write(struct file *file,
-                                 const char __user *buffer,
-                                 size_t count, loff_t *off)
-{
-       struct obd_device *dev;
-       bool val;
-       int rc;
-
-       dev =  ((struct seq_file *)file->private_data)->private;
-       rc = kstrtobool_from_user(buffer, count, &val);
-       if (rc)
-               return rc;
-
-       dev->u.cli.cl_lsom_update = val;
-       return count;
-}
-LPROC_SEQ_FOPS(mdc_lsom);
-
-
 LPROC_SEQ_FOPS_RO_TYPE(mdc, connect_flags);
 LPROC_SEQ_FOPS_RO_TYPE(mdc, server_uuid);
 LPROC_SEQ_FOPS_RO_TYPE(mdc, timeouts);
@@ -597,10 +597,6 @@ struct lprocfs_vars lprocfs_mdc_obd_vars[] = {
          .fops =       &mdc_unstable_stats_fops        },
        { .name =       "mdc_stats",
          .fops =       &mdc_stats_fops                 },
-       { .name =       "mdc_dom_min_repsize",
-         .fops =       &mdc_dom_min_repsize_fops       },
-       { .name =       "mdc_lsom",
-         .fops =       &mdc_lsom_fops                  },
        { NULL }
 };
 
@@ -727,6 +723,8 @@ static struct attribute *mdc_attrs[] = {
        &lustre_attr_grant_shrink_interval.attr,
        &lustre_attr_cur_lost_grant_bytes.attr,
        &lustre_attr_cur_dirty_grant_bytes.attr,
+       &lustre_attr_dom_min_repsize.attr,
+       &lustre_attr_lsom.attr,
        &lustre_attr_at_max.attr,
        &lustre_attr_at_min.attr,
        &lustre_attr_at_history.attr,