From: Mike Meyer <mike.me...@teradata.com>
During the investigation of very slow dump times of guest images in
Amazon EC2 instance, it was discovered that the
register_oldmem_pfn_is_ram() API implemented by the upstream kernel
commit 997c136f518c5debd63847e78e2a8694f56dcf90:
fs/proc/vmcore.c: add hook to read_from_oldmem() to check
for non-ram pages
was not being called. This was due to the PV driver with the call
to register_oldmem_pfn_is_ram() API was not including the
kernel header file that is used to communicate support of the API in the
kernel. Fix the issue by including the required header file.
Signed-off-by: Mike Meyer <mike.me...@teradata.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
--- a/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
+++ b/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
@@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/errno.h>
+#include <linux/crash_dump.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/version.h>
unmodified_drivers: enable use of register_oldmem_pfn_is_ram() API
During the investigation of very slow dump times of guest images in
Amazon EC2 instance, it was discovered that the
register_oldmem_pfn_is_ram() API implemented by the upstream kernel
commit 997c136f518c5debd63847e78e2a8694f56dcf90:
fs/proc/vmcore.c: add hook to read_from_oldmem() to check
for non-ram pages
was not being called. This was due to the PV driver with the call
to register_oldmem_pfn_is_ram() API was not including the
kernel header file that is used to communicate support of the API in the
kernel. Fix the issue by including the required header file.
Signed-off-by: Mike Meyer <mike.me...@teradata.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
--- a/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
+++ b/unmodified_drivers/linux-2.6/platform-pci/platform-pci.c
@@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/errno.h>
+#include <linux/crash_dump.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/version.h>
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