Signed-off-by: Lukas Czerner <lczerner@xxxxxxxxxx>
---
fs/ext4/super.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index a340b4943544..9e10c42c300c 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -94,6 +94,7 @@ static int ext4_check_opt_consistency(struct fs_context *fc,
static void ext4_apply_options(struct fs_context *fc, struct super_block *sb);
static int ext4_parse_param(struct fs_context *fc, struct fs_parameter *param);
static int ext4_get_tree(struct fs_context *fc);
+static int ext4_reconfigure(struct fs_context *fc);
/*
* Lock ordering
@@ -126,6 +127,7 @@ static int ext4_get_tree(struct fs_context *fc);
static const struct fs_context_operations ext4_context_ops = {
.parse_param = ext4_parse_param,
.get_tree = ext4_get_tree,
+ .reconfigure = ext4_reconfigure,
};
#if !defined(CONFIG_EXT2_FS) && !defined(CONFIG_EXT2_FS_MODULE) && defined(CONFIG_EXT4_USE_FOR_EXT2)
@@ -6237,6 +6239,25 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data)
return ret;
}
+static int ext4_reconfigure(struct fs_context *fc)
+{
+ struct super_block *sb = fc->root->d_sb;
+ int flags = fc->sb_flags;
+ int ret;
+
+ fc->s_fs_info = EXT4_SB(sb);
+
+ ret = ext4_check_opt_consistency(fc, sb);
+ if (ret < 0)
+ return ret;
+
+ ret = __ext4_remount(fc, sb, &flags);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
#ifdef CONFIG_QUOTA
static int ext4_statfs_project(struct super_block *sb,
kprojid_t projid, struct kstatfs *buf)
--
2.21.1
