From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 12 Sep 2013 20:24:55 +0000 (-0700)
Subject: vfs: make d_path() get the root path under RCU
X-Git-Tag: v3.12-rc1~29
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=68f0d9d92e5430e250f2bd2a1e7a350e880d776a;p=pandora-kernel.git

vfs: make d_path() get the root path under RCU

This avoids the spinlocks and refcounts in the d_path() sequence too
(used by /proc and various other entities).  See commit 8b19e34188a3 for
the equivalent getcwd() system call path.

And unlike getcwd(), d_path() doesn't copy the result to user space, so
I don't need to fear _that_ particular bug happening again.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

Reading git-diff-tree failed