From: Nick Piggin <npiggin@suse.de>
Date: Fri, 27 Feb 2009 22:03:03 +0000 (-0800)
Subject: mm: vmap fix overflow
X-Git-Tag: v2.6.29-rc7~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7766970cc13e9071b356b1f2a48a9eb8675bfcce;p=pandora-kernel.git

mm: vmap fix overflow

The new vmap allocator can wrap the address and get confused in the case
of large allocations or VMALLOC_END near the end of address space.

Problem reported by Christoph Hellwig on a 32-bit XFS workload.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Reported-by: Christoph Hellwig <hch@lst.de>
Cc: <stable@kernel.org>		[2.6.28.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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