On Tue, May 3, 2016 at 12:49 AM, tip-bot for Stas Sergeev <tipbot@xxxxxxxxx> wrote: > Commit-ID: 0b4521e8cf1f582da3045ea460427ac2f741578f > Gitweb: http://git.kernel.org/tip/0b4521e8cf1f582da3045ea460427ac2f741578f > Author: Stas Sergeev <stsp@xxxxxxx> > AuthorDate: Thu, 14 Apr 2016 23:20:02 +0300 > Committer: Ingo Molnar <mingo@xxxxxxxxxx> > CommitDate: Tue, 3 May 2016 08:37:58 +0200 > > signals/sigaltstack, x86/signals: Unify the x86 sigaltstack check with other architectures > > Currently x86's get_sigframe() checks for "current->sas_ss_size" > to determine whether there is a need to switch to sigaltstack. > The common practice used by all other arches is to check for > sas_ss_flags(sp) == 0 > > This patch makes the code consistent with other architectures. > > The slight complexity of the patch is added by the optimization on > !sigstack check that was requested by Andy Lutomirski: sas_ss_flags(sp)==0 > already implies that we are not on a sigstack, so the code is shuffled > to avoid the duplicate checking. > > This patch should have no user-visible impact. I'm late to the party, but LGTM. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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