mpx: Extend siginfo structure to include bound violation information
This patch adds new fields about bound violation into siginfo structure. si_lower and si_upper are respectively lower bound and upper bound when bound violation is caused. Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com> Signed-off-by: NDave Hansen <dave.hansen@linux.intel.com> Cc: linux-mm@kvack.org Cc: linux-mips@linux-mips.org Cc: Dave Hansen <dave@sr71.net> Link: http://lkml.kernel.org/r/20141114151819.1908C900@viggo.jf.intel.comSigned-off-by: NThomas Gleixner <tglx@linutronix.de>
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