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authorJane Chu <jane.chu@oracle.com>2024-05-24 23:53:06 +0200
committerAndrew Morton <akpm@linux-foundation.org>2024-07-04 04:29:58 +0200
commit1a3798dececa8cb26b9eee26840195ccc1a4d6c1 (patch)
tree7af5819ab44d05c07e13a512660182058ecc4ad4 /mm/z3fold.c
parentmm/memory-failure: move hwpoison_filter() higher up (diff)
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mm/memory-failure: send SIGBUS in the event of thp split fail
While handling hwpoison in a THP page, it is possible that try_to_split_thp_page() fails. For example, when the THP page has been RDMA pinned. At this point, the kernel cannot isolate the poisoned THP page, all it could do is to send a SIGBUS to the user process with meaningful payload to give user-level recovery a chance. Link: https://lkml.kernel.org/r/20240524215306.2705454-6-jane.chu@oracle.com Signed-off-by: Jane Chu <jane.chu@oracle.com> Reviewed-by: Oscar Salvador <osalvador@suse.de> Acked-by: Miaohe Lin <linmiaohe@huawei.com> Cc: Naoya Horiguchi <nao.horiguchi@gmail.com> Cc: Oscar Salvador <oalvador@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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