[PATCH V2 2/2] fs/aio.c: use get_user_pages_non_movable() to pin ring pages when support memory hotremove

This patch gets around the aio ring pages can't be migrated bug caused by get_user_pages() via using the new function. It only works as configed with CONFIG_MEMORY_HOTREMOVE, otherwise it falls back to use the old version of get_user_pages(). Cc: Benjamin LaHaise Cc: Alexander Viro Cc: Andrew

[PATCH V2 2/2] fs/aio.c: use get_user_pages_non_movable() to pin ring pages when support memory hotremove

This patch gets around the aio ring pages can't be migrated bug caused by get_user_pages() via using the new function. It only works as configed with CONFIG_MEMORY_HOTREMOVE, otherwise it falls back to use the old version of get_user_pages(). Cc: Benjamin LaHaise b...@kvack.org Cc: Alexander