Changes since v1 [1]: * Reflowed the patches on 4.10-rc8. The v1 series no longer applies to -mm now that the sub-section memory hotplug support has been deferred to 4.12 [2]. [1]: https://lists.01.org/pipermail/linux-nvdimm/2017-February/008848.html [2]: http://www.spinics.net/lists/linux-mm/msg121990.html --- Ben notes that commit f931ab479dd2 "mm: fix devm_memremap_pages crash, use mem_hotplug_{begin, done}" is incomplete and broken. Writes to mem_hotplug.active_writer need to be coordinated under the device hotplug lock. Otherwise, we can potentially corrupt mem_hotplug.refcount leading to soft lockups. --- Dan Williams (2): mm, devm_memremap_pages: hold device_hotplug lock over mem_hotplug_{begin,done} mm: validate device_hotplug is held for memory hotplug drivers/base/core.c | 5 +++++ include/linux/device.h | 1 + kernel/memremap.c | 6 ++++++ mm/memory_hotplug.c | 2 ++ 4 files changed, 14 insertions(+) -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
