Hi Shakeel, Thank you for the patch! Yet something to improve:
[auto build test ERROR on mmotm/master] [also build test ERROR on v4.16-rc2 next-20180220] [cannot apply to linus/master] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Shakeel-Butt/Directed-kmem-charging/20180221-071026 base: git://git.cmpxchg.org/linux-mmotm.git master config: i386-randconfig-n0-201807 (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): init/initramfs.o: In function `kmalloc_memcg': >> include/linux/slab.h:588: undefined reference to `__kmalloc_memcg' >> include/linux/slab.h:588: undefined reference to `__kmalloc_memcg' arch/x86/events/core.o: In function `kmalloc_memcg': >> include/linux/slab.h:588: undefined reference to `__kmalloc_memcg' >> include/linux/slab.h:588: undefined reference to `__kmalloc_memcg' arch/x86/kernel/ksysfs.o: In function `kmalloc_memcg': >> include/linux/slab.h:588: undefined reference to `__kmalloc_memcg' arch/x86/kernel/e820.o:include/linux/slab.h:588: more undefined references to `__kmalloc_memcg' follow vim +588 include/linux/slab.h 518 519 /** 520 * kmalloc - allocate memory 521 * @size: how many bytes of memory are required. 522 * @flags: the type of memory to allocate. 523 * 524 * kmalloc is the normal method of allocating memory 525 * for objects smaller than page size in the kernel. 526 * 527 * The @flags argument may be one of: 528 * 529 * %GFP_USER - Allocate memory on behalf of user. May sleep. 530 * 531 * %GFP_KERNEL - Allocate normal kernel ram. May sleep. 532 * 533 * %GFP_ATOMIC - Allocation will not sleep. May use emergency pools. 534 * For example, use this inside interrupt handlers. 535 * 536 * %GFP_HIGHUSER - Allocate pages from high memory. 537 * 538 * %GFP_NOIO - Do not do any I/O at all while trying to get memory. 539 * 540 * %GFP_NOFS - Do not make any fs calls while trying to get memory. 541 * 542 * %GFP_NOWAIT - Allocation will not sleep. 543 * 544 * %__GFP_THISNODE - Allocate node-local memory only. 545 * 546 * %GFP_DMA - Allocation suitable for DMA. 547 * Should only be used for kmalloc() caches. Otherwise, use a 548 * slab created with SLAB_DMA. 549 * 550 * Also it is possible to set different flags by OR'ing 551 * in one or more of the following additional @flags: 552 * 553 * %__GFP_HIGH - This allocation has high priority and may use emergency pools. 554 * 555 * %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail 556 * (think twice before using). 557 * 558 * %__GFP_NORETRY - If memory is not immediately available, 559 * then give up at once. 560 * 561 * %__GFP_NOWARN - If allocation fails, don't issue any warnings. 562 * 563 * %__GFP_RETRY_MAYFAIL - Try really hard to succeed the allocation but fail 564 * eventually. 565 * 566 * There are other flags available as well, but these are not intended 567 * for general use, and so are not documented here. For a full list of 568 * potential flags, always refer to linux/gfp.h. 569 */ 570 static __always_inline void * 571 kmalloc_memcg(size_t size, gfp_t flags, struct mem_cgroup *memcg) 572 { 573 if (__builtin_constant_p(size)) { 574 if (size > KMALLOC_MAX_CACHE_SIZE) 575 return kmalloc_large_memcg(size, flags, memcg); 576 #ifndef CONFIG_SLOB 577 if (!(flags & GFP_DMA)) { 578 int index = kmalloc_index(size); 579 580 if (!index) 581 return ZERO_SIZE_PTR; 582 583 return kmem_cache_alloc_memcg_trace( 584 kmalloc_caches[index], flags, size, memcg); 585 } 586 #endif 587 } > 588 return __kmalloc_memcg(size, flags, memcg); 589 } 590 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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