Messages in this thread | | | Date | Wed, 9 Mar 2016 18:46:39 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH] ipc, shm: make shmem attach/detach wait for mmap_sem killable |
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Hi Michal,
[auto build test ERROR on v4.5-rc7] [also build test ERROR on next-20160309] [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/Michal-Hocko/ipc-shm-make-shmem-attach-detach-wait-for-mmap_sem-killable/20160309-182238 config: xtensa-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=xtensa
All errors (new ones prefixed by >>):
ipc/shm.c: In function 'do_shmat': >> ipc/shm.c:1203:2: error: implicit declaration of function 'down_write_killable' [-Werror=implicit-function-declaration] if (down_write_killable(¤t->mm->mmap_sem)) { ^ cc1: some warnings being treated as errors
vim +/down_write_killable +1203 ipc/shm.c
1197 sfd->vm_ops = NULL; 1198 1199 err = security_mmap_file(file, prot, flags); 1200 if (err) 1201 goto out_fput; 1202 > 1203 if (down_write_killable(¤t->mm->mmap_sem)) { 1204 err = -EINTR; 1205 goto out_fput; 1206 }
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