Messages in this thread | | | Date | Tue, 6 Feb 2018 12:39:53 -0800 | From | Greg KH <> | Subject | Re: [PATCHv2 1/1] ext4: don't put symlink in pagecache into highmem |
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On Tue, Feb 06, 2018 at 11:09:37AM -0800, Jin Qian wrote: > From: Jin Qian <jinqian@google.com> > > 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: stable@vger.kernel.org > Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> > Signed-off-by: Jin Qian <jinqian@google.com> > Signed-off-by: Jin Qian <jinqian@android.com>
Ted, any objection to this patch?
thanks,
greg k-h
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