From: Gabriel de Perthuis <g2p.code@gmail.com>
Date: Wed, 10 Oct 2012 14:50:47 +0000 (-0600)
Subject: Fix a sign bug causing invalid memory access in the ino_paths ioctl.
X-Git-Tag: v3.7-rc3~21^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=661bec6ba884b86517ef5ea529aabb281a7198d9;p=pandora-kernel.git

Fix a sign bug causing invalid memory access in the ino_paths ioctl.

To see the problem, create many hardlinks to the same file (120 should do it),
then look up paths by inode with:

  ls -i
  btrfs inspect inode-resolve -v $ino /mnt/btrfs

I noticed the memory layout of the fspath->val data had some irregularities
(some unnecessary gaps that stop appearing about halfway),
so I'm not sure there aren't any bugs left in it.
---

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