[PATCH AUTOSEL for 4.4 136/162] ocfs2: return -EROFS to mount.ocfs2 if inode block is invalid

From: piaojun [ Upstream commit 025bcbde3634b2c9b316f227fed13ad6ad6817fb ] If metadata is corrupted such as 'invalid inode block', we will get failed by calling 'mount()' and then set filesystem readonly as below: ocfs2_mount ocfs2_initialize_super

[PATCH AUTOSEL for 4.4 136/162] ocfs2: return -EROFS to mount.ocfs2 if inode block is invalid

From: piaojun [ Upstream commit 025bcbde3634b2c9b316f227fed13ad6ad6817fb ] If metadata is corrupted such as 'invalid inode block', we will get failed by calling 'mount()' and then set filesystem readonly as below: ocfs2_mount ocfs2_initialize_super ocfs2_init_global_system_inodes