ARM: add help text for HIGHPTE configuration entry

Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

kernel os linux

Add some help text for the HIGHPTE configuration entry. This comes from
the x86 entry, but reworded to be more a more accurate description of
what this option does.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

Russell King 10 years ago b4d103d1 e6ae32c3

1 changed file

expand all

arch

arm

Kconfig

arch/arm/Kconfig

··· 1661 1661 config HIGHPTE 1662 1662 bool "Allocate 2nd-level pagetables from highmem" 1663 1663 depends on HIGHMEM 1664 + help 1665 + The VM uses one page of physical memory for each page table. 1666 + For systems with a lot of processes, this can use a lot of 1667 + precious low memory, eventually leading to low memory being 1668 + consumed by page tables. Setting this option will allow 1669 + user-space 2nd level page tables to reside in high memory. 1664 1670 1665 1671 config HW_PERF_EVENTS 1666 1672 bool "Enable hardware performance counter support for perf events"