Re: [PATCH v5 2/2] mm, thp: avoid unnecessary swapin in khugepaged

From: kbuild test robot
Date: Thu Apr 07 2016 - 13:40:28 EST


Hi Ebru,

[auto build test ERROR on next-20160407]
[cannot apply to v4.6-rc2 v4.6-rc1 v4.5-rc7 v4.6-rc2]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url: https://github.com/0day-ci/linux/commits/Ebru-Akagunduz/mm-thp-Fix-unnecessarry-resource-consuming-in-swapin/20160408-013104
config: x86_64-randconfig-x000-201614 (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

mm/huge_memory.c: In function 'collapse_huge_page':
>> mm/huge_memory.c:2516:46: error: expected expression before ')' token
if (allocstall == curr_allocstall && swap !=)
^

vim +2516 mm/huge_memory.c

2510 swap = get_mm_counter(mm, MM_SWAPENTS);
2511 curr_allocstall = sum_vm_event(ALLOCSTALL);
2512 /*
2513 * When system under pressure, don't swapin readahead.
2514 * So that avoid unnecessary resource consuming.
2515 */
> 2516 if (allocstall == curr_allocstall && swap !=)
2517 __collapse_huge_page_swapin(mm, vma, address, pmd);
2518
2519 anon_vma_lock_write(vma->anon_vma);

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