From: Kirill A. Shutemov Date: Wed, 4 Jun 2014 23:08:20 +0000 (-0700) Subject: mm: update comment for DEFAULT_MAX_MAP_COUNT X-Git-Tag: v4.9.8~6270^2~16^2~145 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3fb1c8dcfcda2f5bfb7d79d8b08bf2f04b1eed8f;p=platform%2Fkernel%2Flinux-rpi3.git mm: update comment for DEFAULT_MAX_MAP_COUNT With ELF extended numbering 16-bit bound is not hard limit any more. [akpm@linux-foundation.org: fix typo] Signed-off-by: Kirill A. Shutemov Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index 8045a55..596a0e0 100644 --- a/include/linux/sched/sysctl.h +++ b/include/linux/sched/sysctl.h @@ -25,6 +25,10 @@ enum { sysctl_hung_task_timeout_secs = 0 }; * Because the kernel adds some informative sections to a image of program at * generating coredump, we need some margin. The number of extra sections is * 1-3 now and depends on arch. We use "5" as safe margin, here. + * + * ELF extended numbering allows more than 65535 sections, so 16-bit bound is + * not a hard limit any more. Although some userspace tools can be surprised by + * that. */ #define MAPCOUNT_ELF_CORE_MARGIN (5) #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)