On 2018/2/28 20:31, Yunlong Song wrote: > Previous dentry page uses highmem, which will cause panic in platforms > using highmem (such as arm), since the address space of dentry pages > from highmem directly goes into the decryption path via the function > fscrypt_fname_disk_to_usr. But sg_init_one assumes the address is not > from highmem, and then cause panic since it doesn't call kmap_high but > kunmap_high is triggered at the end. To fix this problem in a simple > way, this patch avoids to put dentry page in pagecache into highmem. > > Signed-off-by: Yunlong Song <yunlong.s...@huawei.com>
Reviewed-by: Chao Yu <yuch...@huawei.com> Thanks,
