lkml.org 
[lkml]   [2016]   [Mar]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [GIT PULL] f2fs updates for v4.6
On Sat, Mar 26, 2016 at 01:10:07AM -0500, Eric Biggers wrote:
> Why was the XTS tweak initialization changed in commit 0b81d0779072 ("fs crypto:
> move per-file encryption from f2fs tree to fs/crypto")?
>
> Old code:
>
> memcpy(xts_tweak, &index, sizeof(index));
> memset(&xts_tweak[sizeof(index)], 0,
> F2FS_XTS_TWEAK_SIZE - sizeof(index));
>
> New code:
> memcpy(xts_tweak, &inode->i_ino, sizeof(index));
> memset(&xts_tweak[sizeof(index)], 0,
> FS_XTS_TWEAK_SIZE - sizeof(index));
>
> Now the XTS tweak is the same for all pages of each inode.

Thank you for catching this.
I've checked several times, but turns out I missed something tho. :(
Let me write a patch to fix this.

Thanks,


\
 
 \ /
  Last update: 2016-03-26 10:01    [W:0.057 / U:0.052 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site