Hi Alexey, Thank you for the patch! Yet something to improve: [auto build test ERROR on kselftest/next] [also build test ERROR on linux/master linus/master v5.11 next-20210212] [cannot apply to hnaz-linux-mm/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Alexey-Gladkov/Count-rlimits-in-each-user-namespace/20210215-204524 base: https://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest.git next config: xtensa-common_defconfig (attached as .config) compiler: xtensa-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/f009495a8def89a71b9e0b9025a39379d6f9097d git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Alexey-Gladkov/Count-rlimits-in-each-user-namespace/20210215-204524 git checkout f009495a8def89a71b9e0b9025a39379d6f9097d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): ipc/shm.c: In function 'newseg': >> ipc/shm.c:653:5: error: passing argument 4 of 'hugetlb_file_setup' from incompatible pointer type [-Werror=incompatible-pointer-types] 653 | &shp->mlock_cred, HUGETLB_SHMFS_INODE, | ^~~~~~~~~~~~~~~~ | | | const struct cred ** In file included from ipc/shm.c:30: include/linux/hugetlb.h:457:17: note: expected 'struct cred **' but argument is of type 'const struct cred **' 457 | struct cred **cred, int creat_flags, | ~~~~~~~~~~~~~~^~~~ cc1: some warnings being treated as errors vim +/hugetlb_file_setup +653 ipc/shm.c 592 593 /** 594 * newseg - Create a new shared memory segment 595 * @ns: namespace 596 * @params: ptr to the structure that contains key, size and shmflg 597 * 598 * Called with shm_ids.rwsem held as a writer. 599 */ 600 static int newseg(struct ipc_namespace *ns, struct ipc_params *params) 601 { 602 key_t key = params->key; 603 int shmflg = params->flg; 604 size_t size = params->u.size; 605 int error; 606 struct shmid_kernel *shp; 607 size_t numpages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT; 608 struct file *file; 609 char name[13]; 610 vm_flags_t acctflag = 0; 611 612 if (size < SHMMIN || size > ns->shm_ctlmax) 613 return -EINVAL; 614 615 if (numpages << PAGE_SHIFT < size) 616 return -ENOSPC; 617 618 if (ns->shm_tot + numpages < ns->shm_tot || 619 ns->shm_tot + numpages > ns->shm_ctlall) 620 return -ENOSPC; 621 622 shp = kvmalloc(sizeof(*shp), GFP_KERNEL); 623 if (unlikely(!shp)) 624 return -ENOMEM; 625 626 shp->shm_perm.key = key; 627 shp->shm_perm.mode = (shmflg & S_IRWXUGO); 628 shp->mlock_cred = NULL; 629 630 shp->shm_perm.security = NULL; 631 error = security_shm_alloc(&shp->shm_perm); 632 if (error) { 633 kvfree(shp); 634 return error; 635 } 636 637 sprintf(name, "SYSV%08x", key); 638 if (shmflg & SHM_HUGETLB) { 639 struct hstate *hs; 640 size_t hugesize; 641 642 hs = hstate_sizelog((shmflg >> SHM_HUGE_SHIFT) & SHM_HUGE_MASK); 643 if (!hs) { 644 error = -EINVAL; 645 goto no_file; 646 } 647 hugesize = ALIGN(size, huge_page_size(hs)); 648 649 /* hugetlb_file_setup applies strict accounting */ 650 if (shmflg & SHM_NORESERVE) 651 acctflag = VM_NORESERVE; 652 file = hugetlb_file_setup(name, hugesize, acctflag, > 653 &shp->mlock_cred, HUGETLB_SHMFS_INODE, 654 (shmflg >> SHM_HUGE_SHIFT) & SHM_HUGE_MASK); 655 } else { 656 /* 657 * Do not allow no accounting for OVERCOMMIT_NEVER, even 658 * if it's asked for. 659 */ 660 if ((shmflg & SHM_NORESERVE) && 661 sysctl_overcommit_memory != OVERCOMMIT_NEVER) 662 acctflag = VM_NORESERVE; 663 file = shmem_kernel_file_setup(name, size, acctflag); 664 } 665 error = PTR_ERR(file); 666 if (IS_ERR(file)) { 667 shp->mlock_cred = NULL; 668 goto no_file; 669 } 670 671 shp->shm_cprid = get_pid(task_tgid(current)); 672 shp->shm_lprid = NULL; 673 shp->shm_atim = shp->shm_dtim = 0; 674 shp->shm_ctim = ktime_get_real_seconds(); 675 shp->shm_segsz = size; 676 shp->shm_nattch = 0; 677 shp->shm_file = file; 678 shp->shm_creator = current; 679 680 /* ipc_addid() locks shp upon success. */ 681 error = ipc_addid(&shm_ids(ns), &shp->shm_perm, ns->shm_ctlmni); 682 if (error < 0) 683 goto no_id; 684 685 list_add(&shp->shm_clist, ¤t->sysvshm.shm_clist); 686 687 /* 688 * shmid gets reported as "inode#" in /proc/pid/maps. 689 * proc-ps tools use this. Changing this will break them. 690 */ 691 file_inode(file)->i_ino = shp->shm_perm.id; 692 693 ns->shm_tot += numpages; 694 error = shp->shm_perm.id; 695 696 ipc_unlock_object(&shp->shm_perm); 697 rcu_read_unlock(); 698 return error; 699 700 no_id: 701 ipc_update_pid(&shp->shm_cprid, NULL); 702 ipc_update_pid(&shp->shm_lprid, NULL); 703 if (is_file_hugepages(file) && shp->mlock_cred) 704 user_shm_unlock(size, shp->mlock_cred); 705 fput(file); 706 ipc_rcu_putref(&shp->shm_perm, shm_rcu_free); 707 return error; 708 no_file: 709 call_rcu(&shp->shm_perm.rcu, shm_rcu_free); 710 return error; 711 } 712 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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