Messages in this thread | | | From | Mike Frysinger <> | Date | Thu, 24 Mar 2011 02:46:01 -0400 | Subject | Re: [Uclinux-dist-devel] [RFC PATCH] percpu: always align percpu output section to PAGE_SIZE |
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On Tue, Oct 26, 2010 at 10:06, Tejun Heo wrote: > The linker script macros PERCPU_VADDR() and PERCPU() are used to > define this output section and the latter takes @align parameter. > Several architectures are using @align smaller than PAGE_SIZE breaking > percpu memory alignment.
hmm, i just pushed through a fix in the Blackfin tree as we hit a boot failure otherwise: - PERCPU(4) + PERCPU(PAGE_SIZE)
> This patch removes @align parameter from PERCPU(), renames it to > PERCPU_SECTION and makes it always align to PAGE_SIZE. While at it, > add PCPU_SETUP_BUG_ON() checks such that alignment problems are > reliably detected and remove percpu alignment comment recently added > in workqueue.c as the condition would trigger BUG way before reaching > there.
seems this still hasnt made it to mainline. has it stalled or something ? feel free for the Blackfin bits: Signed-off-by: Mike Frysinger <vapier@gentoo.org> -mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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