Daniel Kiper
2010-Dec-29 17:02 UTC
[Xen-devel] [PATCH R2 2/7] xen/balloon: Removal of driver_pages
Removal of driver_pages (I do not have seen any references to it).
Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
---
arch/x86/xen/mmu.c | 3 +--
drivers/xen/balloon.c | 8 --------
2 files changed, 1 insertions(+), 10 deletions(-)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 42086ac..6278650 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -75,8 +75,7 @@
/*
* 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);
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 500290b..97919af 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -69,11 +69,6 @@ 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;
@@ -407,7 +402,6 @@ 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;
@@ -452,7 +446,6 @@ 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)
@@ -521,7 +514,6 @@ static struct attribute *balloon_info_attrs[] = {
&attr_current_kb.attr,
&attr_low_kb.attr,
&attr_high_kb.attr,
- &attr_driver_kb.attr,
NULL
};
--
1.4.4.4
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