xfs_efi_item slab corruption. (v3.9-10936-g51a26ae)

[Mark Tinguely]

On 05/07/13 18:54, Dave Chinner wrote:


Checking the EFI for whether it is being released from recovery
after we've already released the known active reference is a mistake
worthy of a brown paper bag. Fix the (now) obvious use after free
that it can cause.

Reported-by: Dave Jones <davej at redhat.com>
Signed-off-by: Dave Chinner <dchinner at redhat.com>
---
  fs/xfs/xfs_extfree_item.c |   14 +++++++++++++-
  1 file changed, 13 insertions(+), 1 deletion(-)

Looks good.

Reviewed-by: Mark Tinguely <tinguely at sgi.com>