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Commit 06f521d5 authored by Daniel Kiper's avatar Daniel Kiper Committed by Konrad Rzeszutek Wilk
Browse files

xen/balloon: Removal of driver_pages 



Removal of driver_pages (I do not have seen any references to it).

Signed-off-by: default avatarDaniel Kiper <dkiper@net-space.pl>
Signed-off-by: default avatarKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>
parent 38eaeb0f

arch/x86/xen/mmu.c

+1 −2
Original line number Diff line number Diff line
@@ -78,8 +78,7 @@ 


/*

 * Protects atomic reservation decrease/increase against concurrent increases.

 * Also protects non-atomic updates of current_pages and driver_pages, and

 * balloon lists.

 * Also protects non-atomic updates of current_pages and balloon lists.

 */

DEFINE_SPINLOCK(xen_reservation_lock);

drivers/xen/balloon.c

+0 −8
Original line number Diff line number Diff line
@@ -70,11 +70,6 @@ struct balloon_stats { 
	/* We aim for 'current allocation' == 'target allocation'. */

	unsigned long current_pages;

	unsigned long target_pages;

	/*

	 * Drivers may alter the memory reservation independently, but they

	 * must inform the balloon driver so we avoid hitting the hard limit.

	 */

	unsigned long driver_pages;

	/* Number of pages in high- and low-memory balloons. */

	unsigned long balloon_low;

	unsigned long balloon_high;
@@ -404,7 +399,6 @@ static int __init balloon_init(void) 
	balloon_stats.target_pages  = balloon_stats.current_pages;

	balloon_stats.balloon_low   = 0;

	balloon_stats.balloon_high  = 0;

	balloon_stats.driver_pages  = 0UL;



	init_timer(&balloon_timer);

	balloon_timer.data = 0;
@@ -462,7 +456,6 @@ module_exit(balloon_exit); 
BALLOON_SHOW(current_kb, "%lu\n", PAGES2KB(balloon_stats.current_pages));

BALLOON_SHOW(low_kb, "%lu\n", PAGES2KB(balloon_stats.balloon_low));

BALLOON_SHOW(high_kb, "%lu\n", PAGES2KB(balloon_stats.balloon_high));

BALLOON_SHOW(driver_kb, "%lu\n", PAGES2KB(balloon_stats.driver_pages));



static ssize_t show_target_kb(struct sys_device *dev, struct sysdev_attribute *attr,

			      char *buf)
@@ -531,7 +524,6 @@ static struct attribute *balloon_info_attrs[] = { 
	&attr_current_kb.attr,

	&attr_low_kb.attr,

	&attr_high_kb.attr,

	&attr_driver_kb.attr,

	NULL

};