From: Sage Weil <sage@newdream.net>
Date: Fri, 10 Jun 2011 18:43:13 +0000 (+0000)
Subject: Btrfs: clear current->journal_info on async transaction commit
X-Git-Tag: v3.0-rc3~9^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=38e880540f983045da7a00fbc50daad238207fc5;p=pandora-kernel.git

Btrfs: clear current->journal_info on async transaction commit

Normally current->jouranl_info is cleared by commit_transaction.  For an
async snap or subvol creation, though, it runs in a work queue.  Clear
it in btrfs_commit_transaction_async() to avoid leaking a non-NULL
journal_info when we return to userspace.  When the actual commit runs in
the other thread it won't care that it's current->journal_info is already
NULL.

Signed-off-by: Sage Weil <sage@newdream.net>
Tested-by: Jim Schutt <jaschut@sandia.gov>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
---

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