The patch titled Subject: mm/page_isolation.c: fix a wrong flag in set_migratetype_isolate() has been added to the -mm tree. Its filename is mm-fix-a-wrong-flag-in-set_migratetype_isolate.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-fix-a-wrong-flag-in-set_migratetype_isolate.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-fix-a-wrong-flag-in-set_migratetype_isolate.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Qian Cai <cai@xxxxxx> Subject: mm/page_isolation.c: fix a wrong flag in set_migratetype_isolate() Due to has_unmovable_pages() taking an incorrect irqsave flag instead of the isolation flag in set_migratetype_isolate(), there are issues with HWPOSION and error reporting where dump_page() is not called when there is an unmovable page. Link: http://lkml.kernel.org/r/20190320204941.53731-1-cai@xxxxxx Fixes: d381c54760dc ("mm: only report isolation failures when offlining memory") Acked-by: Michal Hocko <mhocko@xxxxxxxx> Reviewed-by: Oscar Salvador <osalvador@xxxxxxx> Signed-off-by: Qian Cai <cai@xxxxxx> Cc: <stable@xxxxxxxxxxxxxxx> [5.0.x] Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- --- a/mm/page_isolation.c~mm-fix-a-wrong-flag-in-set_migratetype_isolate +++ a/mm/page_isolation.c @@ -59,7 +59,8 @@ static int set_migratetype_isolate(struc * FIXME: Now, memory hotplug doesn't call shrink_slab() by itself. * We just check MOVABLE pages. */ - if (!has_unmovable_pages(zone, page, arg.pages_found, migratetype, flags)) + if (!has_unmovable_pages(zone, page, arg.pages_found, migratetype, + isol_flags)) ret = 0; /* _ Patches currently in -mm which might be from cai@xxxxxx are kasan-fix-variable-tag-set-but-not-used-warning.patch mm-debug-add-a-cast-to-u64-for-atomic64_read.patch kmemleak-skip-scanning-holes-in-the-bss-section.patch kmemleak-skip-scanning-holes-in-the-bss-section-v2.patch mm-hotplug-fix-offline-undo_isolate_page_range.patch mm-compaction-abort-search-if-isolation-fails-v2.patch mm-hotplug-fix-notification-in-offline-error-path.patch mm-fix-a-wrong-flag-in-set_migratetype_isolate.patch mm-compaction-fix-an-undefined-behaviour.patch