From c635b0cea6b812898563809a13e65278989b2c72 Mon Sep 17 00:00:00 2001 From: Fengfei Xi Date: Thu, 10 Dec 2020 16:21:34 +0800 Subject: [PATCH] docs: admin-guide: Fix default value of max_map_count in sysctl/vm.rst Since the default value of sysctl_max_map_count is defined as DEFAULT_MAX_MAP_COUNT from mm/util.c int sysctl_max_map_count __read_mostly = DEFAULT_MAX_MAP_COUNT; DEFAULT_MAX_MAP_COUNT is defined as 65530 (65535-5) in include/linux/mm.h #define MAPCOUNT_ELF_CORE_MARGIN (5) #define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN) Signed-off-by: Fengfei Xi Link: https://lore.kernel.org/r/20201210082134.36957-1-xi.fengfei@h3c.com Signed-off-by: Jonathan Corbet --- Documentation/admin-guide/sysctl/vm.rst | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/admin-guide/sysctl/vm.rst b/Documentation/admin-guide/sysctl/vm.rst index e0cf17ad2ae5..82b5e7ad3e91 100644 --- a/Documentation/admin-guide/sysctl/vm.rst +++ b/Documentation/admin-guide/sysctl/vm.rst @@ -428,7 +428,7 @@ While most applications need less than a thousand maps, certain programs, particularly malloc debuggers, may consume lots of them, e.g., up to one or two maps per allocation. -The default value is 65536. +The default value is 65530. memory_failure_early_kill: -- 2.20.1