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Commit 7d622d47 authored by Andreas Mohr's avatar Andreas Mohr Committed by Linus Torvalds
Browse files

[PATCH] make pmtmr_ioport __read_mostly 



- written on init only, accessed for every timer read --> __read_mostly
- fix broken sentence

Signed-off-by: default avatarAndreas Mohr <andi@lisas.de>
Cc: john stultz <johnstul@us.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent a2752549

arch/x86_64/kernel/pmtimer.c

+1 −1
Original line number Diff line number Diff line
@@ -27,7 +27,7 @@ 
/* The I/O port the PMTMR resides at.

 * The location is detected during setup_arch(),

 * in arch/i386/kernel/acpi/boot.c */

u32 pmtmr_ioport;

u32 pmtmr_ioport __read_mostly;



/* value of the Power timer at last timer interrupt */

static u32 offset_delay;

drivers/clocksource/acpi_pm.c

+2 −2
Original line number Diff line number Diff line
@@ -30,7 +30,7 @@ 
 * The location is detected during setup_arch(),

 * in arch/i386/acpi/boot.c

 */

u32 pmtmr_ioport;

u32 pmtmr_ioport __read_mostly;



#define ACPI_PM_MASK 0xFFFFFF /* limit it to 24 bits */
@@ -47,7 +47,7 @@ static cycle_t acpi_pm_read_verified(void) 
	/*

	 * It has been reported that because of various broken

	 * chipsets (ICH4, PIIX4 and PIIX4E) where the ACPI PM clock

	 * source is not latched, so you must read it multiple

	 * source is not latched, you must read it multiple

	 * times to ensure a safe value is read:

	 */

	do {