Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/fs/ext4/sysfs.c b/fs/ext4/sysfs.c
index 9212a02..eb1efad 100644
--- a/fs/ext4/sysfs.c
+++ b/fs/ext4/sysfs.c
@@ -30,6 +30,7 @@
attr_feature,
attr_pointer_ui,
attr_pointer_atomic,
+ attr_journal_task,
} attr_id_t;
typedef enum {
@@ -125,6 +126,14 @@
return count;
}
+static ssize_t journal_task_show(struct ext4_sb_info *sbi, char *buf)
+{
+ if (!sbi->s_journal)
+ return snprintf(buf, PAGE_SIZE, "<none>\n");
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ task_pid_vnr(sbi->s_journal->j_task));
+}
+
#define EXT4_ATTR(_name,_mode,_id) \
static struct ext4_attr ext4_attr_##_name = { \
.attr = {.name = __stringify(_name), .mode = _mode }, \
@@ -188,6 +197,7 @@
EXT4_RO_ATTR_ES_UI(errors_count, s_error_count);
EXT4_ATTR(first_error_time, 0444, first_error_time);
EXT4_ATTR(last_error_time, 0444, last_error_time);
+EXT4_ATTR(journal_task, 0444, journal_task);
static unsigned int old_bump_val = 128;
EXT4_ATTR_PTR(max_writeback_mb_bump, 0444, pointer_ui, &old_bump_val);
@@ -217,28 +227,43 @@
ATTR_LIST(errors_count),
ATTR_LIST(first_error_time),
ATTR_LIST(last_error_time),
+ ATTR_LIST(journal_task),
NULL,
};
+ATTRIBUTE_GROUPS(ext4);
/* Features this copy of ext4 supports */
EXT4_ATTR_FEATURE(lazy_itable_init);
EXT4_ATTR_FEATURE(batched_discard);
EXT4_ATTR_FEATURE(meta_bg_resize);
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
EXT4_ATTR_FEATURE(encryption);
#endif
+#ifdef CONFIG_UNICODE
+EXT4_ATTR_FEATURE(casefold);
+#endif
+#ifdef CONFIG_FS_VERITY
+EXT4_ATTR_FEATURE(verity);
+#endif
EXT4_ATTR_FEATURE(metadata_csum_seed);
static struct attribute *ext4_feat_attrs[] = {
ATTR_LIST(lazy_itable_init),
ATTR_LIST(batched_discard),
ATTR_LIST(meta_bg_resize),
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
+#ifdef CONFIG_FS_ENCRYPTION
ATTR_LIST(encryption),
#endif
+#ifdef CONFIG_UNICODE
+ ATTR_LIST(casefold),
+#endif
+#ifdef CONFIG_FS_VERITY
+ ATTR_LIST(verity),
+#endif
ATTR_LIST(metadata_csum_seed),
NULL,
};
+ATTRIBUTE_GROUPS(ext4_feat);
static void *calc_ptr(struct ext4_attr *a, struct ext4_sb_info *sbi)
{
@@ -304,6 +329,8 @@
return print_tstamp(buf, sbi->s_es, s_first_error_time);
case attr_last_error_time:
return print_tstamp(buf, sbi->s_es, s_last_error_time);
+ case attr_journal_task:
+ return journal_task_show(sbi, buf);
}
return 0;
@@ -355,13 +382,13 @@
};
static struct kobj_type ext4_sb_ktype = {
- .default_attrs = ext4_attrs,
+ .default_groups = ext4_groups,
.sysfs_ops = &ext4_attr_ops,
.release = ext4_sb_release,
};
static struct kobj_type ext4_feat_ktype = {
- .default_attrs = ext4_feat_attrs,
+ .default_groups = ext4_feat_groups,
.sysfs_ops = &ext4_attr_ops,
.release = (void (*)(struct kobject *))kfree,
};