From: Konstantin Khlebnikov <koct9i@gmail.com>
Date: Wed, 6 Aug 2014 23:06:36 +0000 (-0700)
Subject: mm: catch memory commitment underflow
X-Git-Tag: cleanup-for-v3.18~96^2~135
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=82f71ae4a2b829a25971bdf54b4d0d3d69d3c8b7;p=pandora-kernel.git

mm: catch memory commitment underflow

Print a warning (if CONFIG_DEBUG_VM=y) when memory commitment becomes
too negative.

This shouldn't happen any more - the previous two patches fixed the
committed_as underflow issues.

[akpm@linux-foundation.org: use VM_WARN_ONCE, per Dave]
Signed-off-by: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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