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Commit 3fb1c8dc authored by Kirill A. Shutemov's avatar Kirill A. Shutemov Committed by Linus Torvalds
Browse files

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: default avatarKirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent af4459d3

include/linux/sched/sysctl.h

+4 −0
Original line number Diff line number Diff line
@@ -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)