Messages in this thread | | | Subject | Re: [PATCH] f2fs: don't put dentry page in pagecache into highmem | From | Chao Yu <> | Date | Thu, 1 Mar 2018 09:20:56 +0800 |
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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.song@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Thanks,
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