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98e73dc5d2
Use for_each_populated_zone() instead of for_each_zone() in hibernation code. This fixes a bug on s390, where we allow both config options HIBERNATION and MEMORY_HOTPLUG, so that we also have a ZONE_MOVABLE here. We only allow hibernation if no memory hotplug operation was performed, so in fact both features can only be used exclusively, but this way we don't need 2 differently configured (distribution) kernels. If we have an unpopulated ZONE_MOVABLE, we allow hibernation but run into a BUG_ON() in memory_bm_test/set/clear_bit() because hibernation code iterates through all zones, not only the populated zones, in several places. For example, swsusp_free() does for_each_zone() and then checks for pfn_valid(), which is true even if the zone is not populated, resulting in a BUG_ON() later because the pfn cannot be found in the memory bitmap. Replacing all occurences of for_each_zone() in hibernation code with for_each_populated_zone() would fix this issue. [rjw: Rebased on top of linux-next hibernation patches.] Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> |
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| .. | ||
| console.c | ||
| hibernate.c | ||
| hibernate_nvs.c | ||
| Kconfig | ||
| main.c | ||
| Makefile | ||
| power.h | ||
| poweroff.c | ||
| process.c | ||
| snapshot.c | ||
| suspend.c | ||
| suspend_test.c | ||
| swap.c | ||
| swsusp.c | ||
| user.c | ||