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| author | Kirill A. Shutemov <kirill.shutemov@linux.intel.com> | 2014-06-05 03:08:20 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-05 03:54:05 +0400 |
| commit | 3fb1c8dcfcda2f5bfb7d79d8b08bf2f04b1eed8f (patch) | |
| tree | 2927529e2ee9a6e63c95024d2fac19ebe2ae569a | |
| parent | af4459d3636790735fccd83f0337c8380a0a4cc2 (diff) | |
| download | linux-3fb1c8dcfcda2f5bfb7d79d8b08bf2f04b1eed8f.tar.xz | |
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 <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | include/linux/sched/sysctl.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h index 8045a554cafb..596a0e007c62 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) |