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(parent: 3272c54) | patch
vfs: make d_path() get the root path under RCU
authorLinus Torvalds <torvalds@linux-foundation.org>
Thu, 12 Sep 2013 20:24:55 +0000 (13:24 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 12 Sep 2013 20:24:55 +0000 (13:24 -0700)
commit68f0d9d92e5430e250f2bd2a1e7a350e880d776a
tree2e416905bafd3e87a6b6eda8837d5fefe143b19btree
parent3272c544da48f8915a0e34189182aed029bd0f2bcommit | diff
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>
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