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2026-07-09mm/memory-failure: trace: change memory_failure_event to ras subsystemXie Yuanbin
Commit 97f0b1345219 ("tracing: add trace event for memory-failure") introduced memory_failure_event in ras subsystem. commit 31807483d395 ("mm/memory-failure: remove the selection of RAS") changed memory_failure_event to memory_failure subsystem. This breaks the backward compatibility, some user programs rely on it. Change memory_failure_event to ras subsystem to keep backward compatibility. Link: https://lore.kernel.org/20260605081213.154660-1-xieyuanbin1@huawei.com Fixes: 31807483d395 ("mm/memory-failure: remove the selection of RAS") Signed-off-by: Xie Yuanbin <xieyuanbin1@huawei.com> Reported-by: Yi Lai <yi1.lai@intel.com> Reported-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Closes: https://lore.kernel.org/linux-mm/CY8PR11MB7134346A3E4BB28ECA28D6E989132@CY8PR11MB7134.namprd11.prod.outlook.com Acked-by: David Hildenbrand (Arm) <david@kernel.org> Reviewed-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Reviewed-by: Lance Yang <lance.yang@linux.dev> Reviewed-by: Miaohe Lin <linmiaohe@huawei.com> Tested-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com> Reviewed-by: Lance Yang <lance.yang@linux.dev> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Borislav Petkov <bp@alien8.de> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-11-24mm/memory-failure: remove the selection of RASXie Yuanbin
commit 97f0b13452198290799f ("tracing: add trace event for memory-failure") introduces the selection of RAS in memory-failure. This commit is just a tracing feature; in reality, there is no dependency between memory-failure and RAS. RAS increases the size of the bzImage image by 8k, which is very valuable for embedded devices. Move the memory-failure traceing code from ras_event.h to memory-failure.h and remove the selection of RAS. Link: https://lkml.kernel.org/r/20251119095943.67125-1-xieyuanbin1@huawei.com Signed-off-by: Xie Yuanbin <xieyuanbin1@huawei.com> Acked-by: David Hildenbrand (Red Hat) <david@kernel.org> Acked-by: Miaohe Lin <linmiaohe@huawei.com> Cc: Borislav Petkov <bp@alien8.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>