Some minor nits for when you send your next patch for stable: On Tue, Feb 06, 2018 at 03:53:53PM -0800, Jin Qian wrote: > From: Jin Qian <jinqian@xxxxxxxxxx> The original patch was written by Al Viro, please do not take the original authorship off, that's not good. > partial backport from 21fc61c73c3903c4c312d0802da01ec2b323d174 upstream > to v4.4 to prevent virt_to_page on highmem. > > ext4_encrypted_follow_link uses kmap() for cpage > caddr = kmap(cpage); > > _ext4_fname_disk_to_usr calls virt_to_page on the kmapped address. > _ext4_fname_disk_to_usr() > ext4_fname_decrypt() > sg_init_one() > sg_init_one(&src_sg, iname->name, iname->len); > sg_set_page(sg, virt_to_page(buf), buflen, offset_in_page(buf)); > > Cc: linux-stable <stable@xxxxxxxxxxxxxxx> # 4.4.y > Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx> > Signed-off-by: Jin Qian <jinqian@xxxxxxxxxx> > Signed-off-by: Jin Qian <jinqian@xxxxxxxxxxx> Why did you sign off on this twice? thanks, greg k-h