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authorLinus Torvalds <torvalds@linux-foundation.org>2011-08-26 20:28:22 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-08-26 20:28:22 +0400
commit96d185c76584b285dbaf39e4399a9a690ce7aa6d (patch)
tree18fe9e8dc4ba0764e024fc534bf75b05d21af63e /arch
parenta94cc4e6c0a26a7c8f79a432ab2c89534aa674d5 (diff)
parent8adb4ca344b48bbbf87ca66fd07a2dd503619714 (diff)
downloadlinux-96d185c76584b285dbaf39e4399a9a690ce7aa6d.tar.xz
Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] memory hotplug: only unassign assigned increments [S390] Change default action from reipl to stop for on_restart [S390] arch/s390/kernel/ipl.c: correct error detection check [S390] drivers/s390/block/dasd_ioctl.c: add missing kfree [S390] nss,initrd: kernel image and initrd must be in different segments
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/early.c14
-rw-r--r--arch/s390/kernel/ipl.c7
2 files changed, 12 insertions, 9 deletions
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 068f8465c4ee..f297456dba7a 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -396,17 +396,19 @@ static __init void detect_machine_facilities(void)
static __init void rescue_initrd(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
+ unsigned long min_initrd_addr = (unsigned long) _end + (4UL << 20);
/*
- * Move the initrd right behind the bss section in case it starts
- * within the bss section. So we don't overwrite it when the bss
- * section gets cleared.
+ * Just like in case of IPL from VM reader we make sure there is a
+ * gap of 4MB between end of kernel and start of initrd.
+ * That way we can also be sure that saving an NSS will succeed,
+ * which however only requires different segments.
*/
if (!INITRD_START || !INITRD_SIZE)
return;
- if (INITRD_START >= (unsigned long) __bss_stop)
+ if (INITRD_START >= min_initrd_addr)
return;
- memmove(__bss_stop, (void *) INITRD_START, INITRD_SIZE);
- INITRD_START = (unsigned long) __bss_stop;
+ memmove((void *) min_initrd_addr, (void *) INITRD_START, INITRD_SIZE);
+ INITRD_START = min_initrd_addr;
#endif
}
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 04361d5a4279..48c710206366 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -1220,7 +1220,7 @@ static int __init reipl_fcp_init(void)
/* sysfs: create fcp kset for mixing attr group and bin attrs */
reipl_fcp_kset = kset_create_and_add(IPL_FCP_STR, NULL,
&reipl_kset->kobj);
- if (!reipl_kset) {
+ if (!reipl_fcp_kset) {
free_page((unsigned long) reipl_block_fcp);
return -ENOMEM;
}
@@ -1618,7 +1618,8 @@ static struct shutdown_action vmcmd_action = {SHUTDOWN_ACTION_VMCMD_STR,
static void stop_run(struct shutdown_trigger *trigger)
{
- if (strcmp(trigger->name, ON_PANIC_STR) == 0)
+ if (strcmp(trigger->name, ON_PANIC_STR) == 0 ||
+ strcmp(trigger->name, ON_RESTART_STR) == 0)
disabled_wait((unsigned long) __builtin_return_address(0));
while (sigp(smp_processor_id(), sigp_stop) == sigp_busy)
cpu_relax();
@@ -1717,7 +1718,7 @@ static void do_panic(void)
/* on restart */
static struct shutdown_trigger on_restart_trigger = {ON_RESTART_STR,
- &reipl_action};
+ &stop_action};
static ssize_t on_restart_show(struct kobject *kobj,
struct kobj_attribute *attr, char *page)