From: Andrei Vagin <avagin@xxxxxxxxx>
It looks like everything is already prepared for that and we only need
to call do_remount_sb() to apply changes from fs_context.
Signed-off-by: Andrei Vagin <avagin@xxxxxxxxx>
---
fs/fsopen.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/fs/fsopen.c b/fs/fsopen.c
index e79bb5b085d6..6991230a7b59 100644
--- a/fs/fsopen.c
+++ b/fs/fsopen.c
@@ -273,7 +273,25 @@ static int vfs_fsconfig_action(struct fs_context *fc, enum fsconfig_command cmd)
else
fc->phase = FS_CONTEXT_FAILED;
return ret;
+ case FSCONFIG_CMD_RECONFIGURE:
+ {
+ struct super_block *sb;
+
+ if (fc->phase != FS_CONTEXT_RECONF_PARAMS)
+ return -EBUSY;
+ fc->phase = FS_CONTEXT_RECONFIGURING;
+ sb = fc->root->d_sb;
+ down_write(&sb->s_umount);
+ ret = do_remount_sb(sb, 0, NULL, 0, 0, fc);
+ up_write(&sb->s_umount);
+
+ if (ret == 0)
+ fc->phase = FS_CONTEXT_CREATE_PARAMS;
+ else
+ fc->phase = FS_CONTEXT_FAILED;
+ return ret;
+ }
default:
return -EOPNOTSUPP;
}
--
2.17.1
