From: Tomas Racek <tracek@redhat.com>
Date: Tue, 14 Aug 2012 08:35:04 +0000 (+0200)
Subject: xfs: check for possible overflow in xfs_ioc_trim
X-Git-Tag: omap-for-v3.7-rc1/fixes-cpufreq-signed~35^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=643bfc061c47e9c7661324a09fb0a0bc6601e5d6;p=pandora-kernel.git

xfs: check for possible overflow in xfs_ioc_trim

If range.start or range.minlen is bigger than filesystem size, return
invalid value error. This fixes possible overflow in BTOBB macro when
passed value was nearly ULLONG_MAX.

Signed-off-by: Tomas Racek <tracek@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
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