Hello Minchan, /* I can't https://marc.info/?l=linux-kernel&m=148886631303107 thread in my mail box for some reason so the Reply-To message-id may be wrong. */ commit "mm: fix lazyfree BUG_ON check in try_to_unmap_one()" (mmotm fd07630cbf59bead90046dd3e5cfd891e58e6987) if (VM_WARN_ON_ONCE(PageSwapBacked(page) != PageSwapCache(page))) { ... } does not compile on !CONFIG_DEBUG_VM configs, because VM_WARN_ONCE() is #define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e)))) In file included from ./include/linux/mmdebug.h:4:0, from ./include/linux/mm.h:8, from mm/rmap.c:48: mm/rmap.c: In function ‘try_to_unmap_one’: ./include/linux/bug.h:45:33: error: void value not ignored as it ought to be #define BUILD_BUG_ON_INVALID(e) ((void)(sizeof((__force long)(e)))) ^ ./include/linux/mmdebug.h:49:31: note: in expansion of macro ‘BUILD_BUG_ON_INVALID’ #define VM_WARN_ON_ONCE(cond) BUILD_BUG_ON_INVALID(cond) ^~~~~~~~~~~~~~~~~~~~ mm/rmap.c:1416:8: note: in expansion of macro ‘VM_WARN_ON_ONCE’ if (VM_WARN_ON_ONCE(PageSwapBacked(page) != ^~~~~~~~~~~~~~~ -ss -- 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>
