Hi Daniel, Thank you for the patch! Yet something to improve: [auto build test ERROR on vfio/next] [also build test ERROR on v5.0-rc4] [cannot apply to next-20190212] [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/Daniel-Jordan/use-pinned_vm-instead-of-locked_vm-to-account-pinned-pages/20190213-070458 base: https://github.com/awilliam/linux-vfio.git next config: powerpc-defconfig (attached as .config) compiler: powerpc64-linux-gnu-gcc (Debian 8.2.0-11) 8.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=8.2.0 make.cross ARCH=powerpc All errors (new ones prefixed by >>): In file included from include/linux/llist.h:63, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/context_tracking_state.h:5, from include/linux/vtime.h:5, from include/linux/hardirq.h:8, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: arch/powerpc/kvm/book3s_64_vio.c: In function 'kvmppc_account_memlimit': >> arch/powerpc/kvm/book3s_64_vio.c:70:42: error: passing argument 2 of 'atomic64_add_return_relaxed' from incompatible pointer type [-Werror=incompatible-pointer-types] pinned_vm = atomic64_add_return(pages, ¤t->mm->pinned_vm); ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:75:22: note: in definition of macro '__atomic_op_fence' typeof(op##_relaxed(args)) __ret; \ ^~~~ arch/powerpc/kvm/book3s_64_vio.c:70:15: note: in expansion of macro 'atomic64_add_return' pinned_vm = atomic64_add_return(pages, ¤t->mm->pinned_vm); ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/atomic.h:7, from include/linux/llist.h:63, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/context_tracking_state.h:5, from include/linux/vtime.h:5, from include/linux/hardirq.h:8, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: arch/powerpc/include/asm/atomic.h:331:52: note: expected 'atomic64_t *' {aka 'struct <anonymous> *'} but argument is of type 'long unsigned int *' atomic64_##op##_return_relaxed(long a, atomic64_t *v) \ ~~~~~~~~~~~~^ arch/powerpc/include/asm/atomic.h:367:2: note: in expansion of macro 'ATOMIC64_OP_RETURN_RELAXED' ATOMIC64_OP_RETURN_RELAXED(op, asm_op) \ ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/atomic.h:370:1: note: in expansion of macro 'ATOMIC64_OPS' ATOMIC64_OPS(add, add) ^~~~~~~~~~~~ In file included from include/linux/llist.h:63, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/context_tracking_state.h:5, from include/linux/vtime.h:5, from include/linux/hardirq.h:8, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: >> arch/powerpc/kvm/book3s_64_vio.c:70:42: error: passing argument 2 of 'atomic64_add_return_relaxed' from incompatible pointer type [-Werror=incompatible-pointer-types] pinned_vm = atomic64_add_return(pages, ¤t->mm->pinned_vm); ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/atomic.h:77:23: note: in definition of macro '__atomic_op_fence' __ret = op##_relaxed(args); \ ^~~~ arch/powerpc/kvm/book3s_64_vio.c:70:15: note: in expansion of macro 'atomic64_add_return' pinned_vm = atomic64_add_return(pages, ¤t->mm->pinned_vm); ^~~~~~~~~~~~~~~~~~~ In file included from include/linux/atomic.h:7, from include/linux/llist.h:63, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/context_tracking_state.h:5, from include/linux/vtime.h:5, from include/linux/hardirq.h:8, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: arch/powerpc/include/asm/atomic.h:331:52: note: expected 'atomic64_t *' {aka 'struct <anonymous> *'} but argument is of type 'long unsigned int *' atomic64_##op##_return_relaxed(long a, atomic64_t *v) \ ~~~~~~~~~~~~^ arch/powerpc/include/asm/atomic.h:367:2: note: in expansion of macro 'ATOMIC64_OP_RETURN_RELAXED' ATOMIC64_OP_RETURN_RELAXED(op, asm_op) \ ^~~~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/atomic.h:370:1: note: in expansion of macro 'ATOMIC64_OPS' ATOMIC64_OPS(add, add) ^~~~~~~~~~~~ >> arch/powerpc/kvm/book3s_64_vio.c:73:24: error: passing argument 2 of 'atomic64_sub' from incompatible pointer type [-Werror=incompatible-pointer-types] atomic64_sub(pages, ¤t->mm->pinned_vm); ^~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/atomic.h:7, from include/linux/llist.h:63, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/context_tracking_state.h:5, from include/linux/vtime.h:5, from include/linux/hardirq.h:8, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: arch/powerpc/include/asm/atomic.h:315:58: note: expected 'atomic64_t *' {aka 'struct <anonymous> *'} but argument is of type 'long unsigned int *' static __inline__ void atomic64_##op(long a, atomic64_t *v) \ ~~~~~~~~~~~~^ arch/powerpc/include/asm/atomic.h:366:2: note: in expansion of macro 'ATOMIC64_OP' ATOMIC64_OP(op, asm_op) \ ^~~~~~~~~~~ arch/powerpc/include/asm/atomic.h:371:1: note: in expansion of macro 'ATOMIC64_OPS' ATOMIC64_OPS(sub, subf) ^~~~~~~~~~~~ >> arch/powerpc/kvm/book3s_64_vio.c:76:29: error: passing argument 1 of 'atomic64_read' from incompatible pointer type [-Werror=incompatible-pointer-types] pinned_vm = atomic64_read(¤t->mm->pinned_vm); ^~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/atomic.h:7, from include/linux/llist.h:63, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/context_tracking_state.h:5, from include/linux/vtime.h:5, from include/linux/hardirq.h:8, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: arch/powerpc/include/asm/atomic.h:300:56: note: expected 'const atomic64_t *' {aka 'const struct <anonymous> *'} but argument is of type 'long unsigned int *' static __inline__ long atomic64_read(const atomic64_t *v) ~~~~~~~~~~~~~~~~~~^ arch/powerpc/kvm/book3s_64_vio.c:80:23: error: passing argument 2 of 'atomic64_sub' from incompatible pointer type [-Werror=incompatible-pointer-types] atomic64_sub(pages, ¤t->mm->pinned_vm); ^~~~~~~~~~~~~~~~~~~~~~~ In file included from include/linux/atomic.h:7, from include/linux/llist.h:63, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/context_tracking_state.h:5, from include/linux/vtime.h:5, from include/linux/hardirq.h:8, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: arch/powerpc/include/asm/atomic.h:315:58: note: expected 'atomic64_t *' {aka 'struct <anonymous> *'} but argument is of type 'long unsigned int *' static __inline__ void atomic64_##op(long a, atomic64_t *v) \ ~~~~~~~~~~~~^ arch/powerpc/include/asm/atomic.h:366:2: note: in expansion of macro 'ATOMIC64_OP' ATOMIC64_OP(op, asm_op) \ ^~~~~~~~~~~ arch/powerpc/include/asm/atomic.h:371:1: note: in expansion of macro 'ATOMIC64_OPS' ATOMIC64_OPS(sub, subf) ^~~~~~~~~~~~ In file included from include/linux/kernel.h:14, from include/linux/list.h:9, from include/linux/preempt.h:11, from include/linux/hardirq.h:5, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: arch/powerpc/kvm/book3s_64_vio.c:85:18: error: passing argument 1 of 'atomic64_read' from incompatible pointer type [-Werror=incompatible-pointer-types] atomic64_read(¤t->mm->pinned_vm) << PAGE_SHIFT, ^~~~~~~~~~~~~~~~~~~~~~~ include/linux/printk.h:136:17: note: in definition of macro 'no_printk' printk(fmt, ##__VA_ARGS__); \ ^~~~~~~~~~~ arch/powerpc/kvm/book3s_64_vio.c:83:2: note: in expansion of macro 'pr_debug' pr_debug("[%d] RLIMIT_MEMLOCK KVM %c%lu %ld/%lu%s\n", current->pid, ^~~~~~~~ In file included from include/linux/atomic.h:7, from include/linux/llist.h:63, from include/linux/smp.h:15, from include/linux/percpu.h:7, from include/linux/context_tracking_state.h:5, from include/linux/vtime.h:5, from include/linux/hardirq.h:8, from include/linux/kvm_host.h:10, from arch/powerpc/kvm/book3s_64_vio.c:23: arch/powerpc/include/asm/atomic.h:300:56: note: expected 'const atomic64_t *' {aka 'const struct <anonymous> *'} but argument is of type 'long unsigned int *' static __inline__ long atomic64_read(const atomic64_t *v) ~~~~~~~~~~~~~~~~~~^ cc1: all warnings being treated as errors vim +/atomic64_add_return_relaxed +70 arch/powerpc/kvm/book3s_64_vio.c > 23 #include <linux/kvm_host.h> 24 #include <linux/highmem.h> 25 #include <linux/gfp.h> 26 #include <linux/slab.h> 27 #include <linux/sched/signal.h> 28 #include <linux/hugetlb.h> 29 #include <linux/list.h> 30 #include <linux/anon_inodes.h> 31 #include <linux/iommu.h> 32 #include <linux/file.h> 33 34 #include <asm/kvm_ppc.h> 35 #include <asm/kvm_book3s.h> 36 #include <asm/book3s/64/mmu-hash.h> 37 #include <asm/hvcall.h> 38 #include <asm/synch.h> 39 #include <asm/ppc-opcode.h> 40 #include <asm/kvm_host.h> 41 #include <asm/udbg.h> 42 #include <asm/iommu.h> 43 #include <asm/tce.h> 44 #include <asm/mmu_context.h> 45 46 static unsigned long kvmppc_tce_pages(unsigned long iommu_pages) 47 { 48 return ALIGN(iommu_pages * sizeof(u64), PAGE_SIZE) / PAGE_SIZE; 49 } 50 51 static unsigned long kvmppc_stt_pages(unsigned long tce_pages) 52 { 53 unsigned long stt_bytes = sizeof(struct kvmppc_spapr_tce_table) + 54 (tce_pages * sizeof(struct page *)); 55 56 return tce_pages + ALIGN(stt_bytes, PAGE_SIZE) / PAGE_SIZE; 57 } 58 59 static long kvmppc_account_memlimit(unsigned long pages, bool inc) 60 { 61 long ret = 0; 62 s64 pinned_vm; 63 64 if (!current || !current->mm) 65 return ret; /* process exited */ 66 67 if (inc) { 68 unsigned long lock_limit = rlimit(RLIMIT_MEMLOCK) >> PAGE_SHIFT; 69 > 70 pinned_vm = atomic64_add_return(pages, ¤t->mm->pinned_vm); 71 if (pinned_vm > lock_limit && !capable(CAP_IPC_LOCK)) { 72 ret = -ENOMEM; > 73 atomic64_sub(pages, ¤t->mm->pinned_vm); 74 } 75 } else { > 76 pinned_vm = atomic64_read(¤t->mm->pinned_vm); 77 if (WARN_ON_ONCE(pages > pinned_vm)) 78 pages = pinned_vm; 79 80 atomic64_sub(pages, ¤t->mm->pinned_vm); 81 } 82 83 pr_debug("[%d] RLIMIT_MEMLOCK KVM %c%lu %ld/%lu%s\n", current->pid, 84 inc ? '+' : '-', pages << PAGE_SHIFT, 85 atomic64_read(¤t->mm->pinned_vm) << PAGE_SHIFT, 86 rlimit(RLIMIT_MEMLOCK), ret ? " - exceeded" : ""); 87 88 return ret; 89 } 90 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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