From: Daniel Kiper <dkiper@net-space.pl>
To: ian.campbell@citrix.com, akpm@linux-foundation.org,
andi.kleen@intel.com, haicheng.li@linux.intel.com,
fengguang.wu@intel.com, jeremy@goop.org, konrad.wilk@oracle.com,
dan.magenheimer@oracle.com, v.tolstov@selfip.ru, pasik@iki.fi,
dave@linux.vnet.ibm.com, wdauchy@gmail.com, rientjes@google.com,
xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: [PATCH 1/4] xen/balloon: Use PageHighMem() for high memory page detection
Date: Mon, 28 Mar 2011 11:32:31 +0200 [thread overview]
Message-ID: <20110328093231.GF13826@router-fw-old.local.net-space.pl> (raw)
Replace pfn < max_low_pfn by !PageHighMem() in increase_reservation().
It makes more clearer what is going on.
Signed-off-by: Daniel Kiper <dkiper@net-space.pl>
---
drivers/xen/balloon.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 043af8a..61665b2 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -246,7 +246,7 @@ static enum bp_state increase_reservation(unsigned long nr_pages)
set_phys_to_machine(pfn, frame_list[i]);
/* Link back into the page tables if not highmem. */
- if (!xen_hvm_domain() && pfn < max_low_pfn) {
+ if (!xen_hvm_domain() && !PageHighMem(page)) {
int ret;
ret = HYPERVISOR_update_va_mapping(
(unsigned long)__va(pfn << PAGE_SHIFT),
--
1.5.6.5
--
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reply other threads:[~2011-03-28 9:32 UTC|newest]
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