Messages in this thread | | | Date | Sun, 18 Mar 2018 07:47:14 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH v6 15/15] xfs, dax: introduce xfs_break_dax_layouts() |
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Hi Dan,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master] [also build test ERROR on v4.16-rc5] [cannot apply to next-20180316] [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/Dan-Williams/dax-fix-dma-vs-truncate-hole-punch/20180318-050250 config: x86_64-randconfig-s2-03180641 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: # save the attached .config to linux build tree make ARCH=x86_64
All errors (new ones prefixed by >>):
fs//xfs/xfs_file.c: In function 'xfs_break_dax_layouts': >> fs//xfs/xfs_file.c:786:8: error: implicit declaration of function '___wait_var_event' [-Werror=implicit-function-declaration] ret = ___wait_var_event(&page->_refcount, ^~~~~~~~~~~~~~~~~ fs//xfs/xfs_file.c:788:4: error: invalid use of void expression 0, 0, xfs_wait_var_event(inode, iolock)); ^ cc1: some warnings being treated as errors -- drivers//dax/super.c: In function 'generic_dax_pagefree': >> drivers//dax/super.c:170:2: error: implicit declaration of function 'wake_up_var' [-Werror=implicit-function-declaration] wake_up_var(&page->_refcount); ^~~~~~~~~~~ cc1: some warnings being treated as errors
vim +/___wait_var_event +786 fs//xfs/xfs_file.c
773 774 static int 775 xfs_break_dax_layouts( 776 struct inode *inode, 777 uint iolock) 778 { 779 struct page *page; 780 int ret; 781 782 page = dax_layout_busy_page(inode->i_mapping); 783 if (!page) 784 return 0; 785 > 786 ret = ___wait_var_event(&page->_refcount, 787 atomic_read(&page->_refcount) == 1, TASK_INTERRUPTIBLE, 788 0, 0, xfs_wait_var_event(inode, iolock)); 789 if (ret < 0) 790 return ret; 791 return 1; 792 } 793
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