Commit c635b0ce authored Dec 10, 2020 by Fengfei Xi Committed by Jonathan Corbet Dec 21, 2020

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 <xi.fengfei@h3c.com>
Link: https://lore.kernel.org/r/20201210082134.36957-1-xi.fengfei@h3c.com


Signed-off-by: Jonathan Corbet <corbet@lwn.net>

parent 9bf19b78

Documentation/admin-guide/sysctl/vm.rst

+1 −1

Original line number	Diff line number	Diff line
		@@ -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:

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