diff options
29 files changed, 44 insertions, 64 deletions
diff --git a/arch/cris/arch-v32/drivers/cryptocop.c b/arch/cris/arch-v32/drivers/cryptocop.c index 877da1908234..617645d21b20 100644 --- a/arch/cris/arch-v32/drivers/cryptocop.c +++ b/arch/cris/arch-v32/drivers/cryptocop.c @@ -2719,9 +2719,7 @@ static int cryptocop_ioctl_process(struct inode *inode, struct file *filp, unsig /* Acquire the mm page semaphore. */ down_read(¤t->mm->mmap_sem); - err = get_user_pages(current, - current->mm, - (unsigned long int)(oper.indata + prev_ix), + err = get_user_pages((unsigned long int)(oper.indata + prev_ix), noinpages, 0, /* read access only for in data */ 0, /* no force */ @@ -2736,9 +2734,7 @@ static int cryptocop_ioctl_process(struct inode *inode, struct file *filp, unsig } noinpages = err; if (oper.do_cipher){ - err = get_user_pages(current, - current->mm, - (unsigned long int)oper.cipher_outdata, + err = get_user_pages((unsigned long int)oper.cipher_outdata, nooutpages, 1, /* write access for out data */ 0, /* no force */ diff --git a/arch/ia64/kernel/err_inject.c b/arch/ia64/kernel/err_inject.c index 0c161ed6d18e..09f845793d12 100644 --- a/arch/ia64/kernel/err_inject.c +++ b/arch/ia64/kernel/err_inject.c @@ -142,8 +142,7 @@ store_virtual_to_phys(struct device *dev, struct device_attribute *attr, u64 virt_addr=simple_strtoull(buf, NULL, 16); int ret; - ret = get_user_pages(current, current->mm, virt_addr, - 1, VM_READ, 0, NULL, NULL); + ret = get_user_pages(virt_addr, 1, VM_READ, 0, NULL, NULL); if (ret<=0) { #ifdef ERR_INJ_DEBUG printk("Virtual address %lx is not existing.\n",virt_addr); diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c index 1afd87c999b0..982e83f9d11f 100644 --- a/arch/mips/mm/gup.c +++ b/arch/mips/mm/gup.c @@ -286,8 +286,7 @@ slow_irqon: start += nr << PAGE_SHIFT; pages += nr; - ret = get_user_pages_unlocked(current, mm, start, - (end - start) >> PAGE_SHIFT, + ret = get_user_pages_unlocked(start, (end - start) >> PAGE_SHIFT, write, 0, pages); /* Have to be a bit careful with return values */ diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c index 13dab0c1645c..49a1c84ed266 100644 --- a/arch/s390/mm/gup.c +++ b/arch/s390/mm/gup.c @@ -210,7 +210,6 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write, int get_user_pages_fast(unsigned long start, int nr_pages, int write, struct page **pages) { - struct mm_struct *mm = current->mm; int nr, ret; might_sleep(); @@ -222,8 +221,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write, /* Try to get the remaining pages with get_user_pages */ start += nr << PAGE_SHIFT; pages += nr; - ret = get_user_pages_unlocked(current, mm, start, - nr_pages - nr, write, 0, pages); + ret = get_user_pages_unlocked(start, nr_pages - nr, write, 0, pages); /* Have to be a bit careful with return values */ if (nr > 0) ret = (ret < 0) ? nr : ret + nr; diff --git a/arch/sh/mm/gup.c b/arch/sh/mm/gup.c index e7af6a65baab..40fa6c8adc43 100644 --- a/arch/sh/mm/gup.c +++ b/arch/sh/mm/gup.c @@ -257,7 +257,7 @@ slow_irqon: start += nr << PAGE_SHIFT; pages += nr; - ret = get_user_pages_unlocked(current, mm, start, + ret = get_user_pages_unlocked(start, (end - start) >> PAGE_SHIFT, write, 0, pages); /* Have to be a bit careful with return values */ diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c index eb3d8e8ebc6b..4e06750a5d29 100644 --- a/arch/sparc/mm/gup.c +++ b/arch/sparc/mm/gup.c @@ -237,7 +237,7 @@ slow: start += nr << PAGE_SHIFT; pages += nr; - ret = get_user_pages_unlocked(current, mm, start, + ret = get_user_pages_unlocked(start, (end - start) >> PAGE_SHIFT, write, 0, pages); /* Have to be a bit careful with return values */ diff --git a/arch/x86/mm/gup.c b/arch/x86/mm/gup.c index 6d5eb5900372..ce5e4545203b 100644 --- a/arch/x86/mm/gup.c +++ b/arch/x86/mm/gup.c @@ -422,7 +422,7 @@ slow_irqon: start += nr << PAGE_SHIFT; pages += nr; - ret = get_user_pages_unlocked(current, mm, start, + ret = get_user_pages_unlocked(start, (end - start) >> PAGE_SHIFT, write, 0, pages); diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c index b2fd67da1701..84fa4a482c78 100644 --- a/arch/x86/mm/mpx.c +++ b/arch/x86/mm/mpx.c @@ -546,8 +546,8 @@ static int mpx_resolve_fault(long __user *addr, int write) int nr_pages = 1; int force = 0; - gup_ret = get_user_pages(current, current->mm, (unsigned long)addr, - nr_pages, write, force, NULL, NULL); + gup_ret = get_user_pages((unsigned long)addr, nr_pages, write, + force, NULL, NULL); /* * get_user_pages() returns number of pages gotten. * 0 means we failed to fault in and get anything, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 6442a06d6fdc..5fedfb68d7ca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -518,8 +518,7 @@ static int amdgpu_ttm_tt_pin_userptr(struct ttm_tt *ttm) uint64_t userptr = gtt->userptr + pinned * PAGE_SIZE; struct page **pages = ttm->pages + pinned; - r = get_user_pages(current, current->mm, userptr, num_pages, - write, 0, pages, NULL); + r = get_user_pages(userptr, num_pages, write, 0, pages, NULL); if (r < 0) goto release_pages; diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index e34307459e50..927a9f2d6570 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -554,8 +554,7 @@ static int radeon_ttm_tt_pin_userptr(struct ttm_tt *ttm) uint64_t userptr = gtt->userptr + pinned * PAGE_SIZE; struct page **pages = ttm->pages + pinned; - r = get_user_pages(current, current->mm, userptr, num_pages, - write, 0, pages, NULL); + r = get_user_pages(userptr, num_pages, write, 0, pages, NULL); if (r < 0) goto release_pages; diff --git a/drivers/gpu/drm/via/via_dmablit.c b/drivers/gpu/drm/via/via_dmablit.c index d0cbd5ecd7f0..e797dfc07ae3 100644 --- a/drivers/gpu/drm/via/via_dmablit.c +++ b/drivers/gpu/drm/via/via_dmablit.c @@ -239,8 +239,7 @@ via_lock_all_dma_pages(drm_via_sg_info_t *vsg, drm_via_dmablit_t *xfer) if (NULL == vsg->pages) return -ENOMEM; down_read(¤t->mm->mmap_sem); - ret = get_user_pages(current, current->mm, - (unsigned long)xfer->mem_addr, + ret = get_user_pages((unsigned long)xfer->mem_addr, vsg->num_pages, (vsg->direction == DMA_FROM_DEVICE), 0, vsg->pages, NULL); diff --git a/drivers/infiniband/core/umem.c b/drivers/infiniband/core/umem.c index 38acb3cfc545..fe4d2e1a8b58 100644 --- a/drivers/infiniband/core/umem.c +++ b/drivers/infiniband/core/umem.c @@ -188,7 +188,7 @@ struct ib_umem *ib_umem_get(struct ib_ucontext *context, unsigned long addr, sg_list_start = umem->sg_head.sgl; while (npages) { - ret = get_user_pages(current, current->mm, cur_base, + ret = get_user_pages(cur_base, min_t(unsigned long, npages, PAGE_SIZE / sizeof (struct page *)), 1, !umem->writable, page_list, vma_list); diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c index 7d2e42dd6926..6c00d04b8b28 100644 --- a/drivers/infiniband/hw/mthca/mthca_memfree.c +++ b/drivers/infiniband/hw/mthca/mthca_memfree.c @@ -472,8 +472,7 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar, goto out; } - ret = get_user_pages(current, current->mm, uaddr & PAGE_MASK, 1, 1, 0, - pages, NULL); + ret = get_user_pages(uaddr & PAGE_MASK, 1, 1, 0, pages, NULL); if (ret < 0) goto out; diff --git a/drivers/infiniband/hw/qib/qib_user_pages.c b/drivers/infiniband/hw/qib/qib_user_pages.c index 74f90b2619f6..2d2b94fd3633 100644 --- a/drivers/infiniband/hw/qib/qib_user_pages.c +++ b/drivers/infiniband/hw/qib/qib_user_pages.c @@ -66,8 +66,7 @@ static int __qib_get_user_pages(unsigned long start_page, size_t num_pages, } for (got = 0; got < num_pages; got += ret) { - ret = get_user_pages(current, current->mm, - start_page + got * PAGE_SIZE, + ret = get_user_pages(start_page + got * PAGE_SIZE, num_pages - got, 1, 1, p + got, NULL); if (ret < 0) diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c index 645a5f6e6c88..7209fbc03ccb 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.c +++ b/drivers/infiniband/hw/usnic/usnic_uiom.c @@ -144,7 +144,7 @@ static int usnic_uiom_get_pages(unsigned long addr, size_t size, int writable, ret = 0; while (npages) { - ret = get_user_pages(current, current->mm, cur_base, + ret = get_user_pages(cur_base, min_t(unsigned long, npages, PAGE_SIZE / sizeof(struct page *)), 1, !writable, page_list, NULL); diff --git a/drivers/media/pci/ivtv/ivtv-udma.c b/drivers/media/pci/ivtv/ivtv-udma.c index 24152accc66c..4769469fe842 100644 --- a/drivers/media/pci/ivtv/ivtv-udma.c +++ b/drivers/media/pci/ivtv/ivtv-udma.c @@ -124,8 +124,8 @@ int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, } /* Get user pages for DMA Xfer */ - err = get_user_pages_unlocked(current, current->mm, - user_dma.uaddr, user_dma.page_count, 0, 1, dma->map); + err = get_user_pages_unlocked(user_dma.uaddr, user_dma.page_count, 0, + 1, dma->map); if (user_dma.page_count != err) { IVTV_DEBUG_WARN("failed to map user pages, returned %d instead of %d\n", diff --git a/drivers/media/pci/ivtv/ivtv-yuv.c b/drivers/media/pci/ivtv/ivtv-yuv.c index 2b8e7b2f2b86..b094054cda6e 100644 --- a/drivers/media/pci/ivtv/ivtv-yuv.c +++ b/drivers/media/pci/ivtv/ivtv-yuv.c @@ -75,14 +75,12 @@ static int ivtv_yuv_prep_user_dma(struct ivtv *itv, struct ivtv_user_dma *dma, ivtv_udma_get_page_info (&uv_dma, (unsigned long)args->uv_source, 360 * uv_decode_height); /* Get user pages for DMA Xfer */ - y_pages = get_user_pages_unlocked(current, current->mm, - y_dma.uaddr, y_dma.page_count, 0, 1, - &dma->map[0]); + y_pages = get_user_pages_unlocked(y_dma.uaddr, + y_dma.page_count, 0, 1, &dma->map[0]); uv_pages = 0; /* silence gcc. value is set and consumed only if: */ if (y_pages == y_dma.page_count) { - uv_pages = get_user_pages_unlocked(current, current->mm, - uv_dma.uaddr, uv_dma.page_count, 0, 1, - &dma->map[y_pages]); + uv_pages = get_user_pages_unlocked(uv_dma.uaddr, + uv_dma.page_count, 0, 1, &dma->map[y_pages]); } if (y_pages != y_dma.page_count || uv_pages != uv_dma.page_count) { diff --git a/drivers/media/v4l2-core/videobuf-dma-sg.c b/drivers/media/v4l2-core/videobuf-dma-sg.c index f669cedca8bd..df4c052c6bd6 100644 --- a/drivers/media/v4l2-core/videobuf-dma-sg.c +++ b/drivers/media/v4l2-core/videobuf-dma-sg.c @@ -181,8 +181,7 @@ static int videobuf_dma_init_user_locked(struct videobuf_dmabuf *dma, dprintk(1, "init user [0x%lx+0x%lx => %d pages]\n", data, size, dma->nr_pages); - err = get_user_pages(current, current->mm, - data & PAGE_MASK, dma->nr_pages, + err = get_user_pages(data & PAGE_MASK, dma->nr_pages, rw == READ, 1, /* force */ dma->pages, NULL); diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c index 8310b4dbff06..0fa0d242b295 100644 --- a/drivers/misc/mic/scif/scif_rma.c +++ b/drivers/misc/mic/scif/scif_rma.c @@ -1394,8 +1394,6 @@ retry: } pinned_pages->nr_pages = get_user_pages( - current, - mm, (u64)addr, nr_pages, !!(prot & SCIF_PROT_WRITE), diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index f74fc0ca2ef9..a2d97b9b17e3 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -198,8 +198,7 @@ static int non_atomic_pte_lookup(struct vm_area_struct *vma, #else *pageshift = PAGE_SHIFT; #endif - if (get_user_pages - (current, current->mm, vaddr, 1, write, 0, &page, NULL) <= 0) + if (get_user_pages(vaddr, 1, write, 0, &page, NULL) <= 0) return -EFAULT; *paddr = page_to_phys(page); put_page(page); diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 2e522951b619..664852af4417 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -4817,8 +4817,6 @@ static int sgl_map_user_pages(struct st_buffer *STbp, /* Try to fault in all of the necessary pages */ /* rw==READ means read from drive, write into memory area */ res = get_user_pages_unlocked( - current, - current->mm, uaddr, nr_pages, rw == READ, diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c index 0e24eb9c219c..71a923e53f93 100644 --- a/drivers/video/fbdev/pvr2fb.c +++ b/drivers/video/fbdev/pvr2fb.c @@ -686,8 +686,8 @@ static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, if (!pages) return -ENOMEM; - ret = get_user_pages_unlocked(current, current->mm, (unsigned long)buf, - nr_pages, WRITE, 0, pages); + ret = get_user_pages_unlocked((unsigned long)buf, nr_pages, WRITE, + 0, pages); if (ret < nr_pages) { nr_pages = ret; diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c index 32c8fc5f7a5c..60bdad3a689b 100644 --- a/drivers/virt/fsl_hypervisor.c +++ b/drivers/virt/fsl_hypervisor.c @@ -244,9 +244,8 @@ static long ioctl_memcpy(struct fsl_hv_ioctl_memcpy __user *p) /* Get the physical addresses of the source buffer */ down_read(¤t->mm->mmap_sem); - num_pinned = get_user_pages(current, current->mm, - param.local_vaddr - lb_offset, num_pages, - (param.source == -1) ? READ : WRITE, + num_pinned = get_user_pages(param.local_vaddr - lb_offset, + num_pages, (param.source == -1) ? READ : WRITE, 0, pages, NULL); up_read(¤t->mm->mmap_sem); diff --git a/mm/frame_vector.c b/mm/frame_vector.c index 7cf2b7163222..381bb07ed14f 100644 --- a/mm/frame_vector.c +++ b/mm/frame_vector.c @@ -58,7 +58,7 @@ int get_vaddr_frames(unsigned long start, unsigned int nr_frames, if (!(vma->vm_flags & (VM_IO | VM_PFNMAP))) { vec->got_ref = true; vec->is_pfns = false; - ret = get_user_pages_locked(current, mm, start, nr_frames, + ret = get_user_pages_locked(start, nr_frames, write, force, (struct page **)(vec->ptrs), &locked); goto out; } diff --git a/mm/gup.c b/mm/gup.c index 8a035e042b35..de24ef4cd1af 100644 --- a/mm/gup.c +++ b/mm/gup.c @@ -936,8 +936,10 @@ long get_user_pages_remote(struct task_struct *tsk, struct mm_struct *mm, EXPORT_SYMBOL(get_user_pages_remote); /* - * This is the same as get_user_pages_remote() for the time - * being. + * This is the same as get_user_pages_remote(), just with a + * less-flexible calling convention where we assume that the task + * and mm being operated on are the current task's. We also + * obviously don't pass FOLL_REMOTE in here. */ long get_user_pages6(unsigned long start, unsigned long nr_pages, int write, int force, struct page **pages, diff --git a/mm/ksm.c b/mm/ksm.c index ca6d2a06a615..c2013f638d11 100644 --- a/mm/ksm.c +++ b/mm/ksm.c @@ -352,7 +352,7 @@ static inline bool ksm_test_exit(struct mm_struct *mm) /* * We use break_ksm to break COW on a ksm page: it's a stripped down * - * if (get_user_pages(current, mm, addr, 1, 1, 1, &page, NULL) == 1) + * if (get_user_pages(addr, 1, 1, 1, &page, NULL) == 1) * put_page(page); * * but taking great care only to touch a ksm page, in a VM_MERGEABLE vma, diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 4c4187c0e1de..dd0ce7fbd47b 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -844,12 +844,12 @@ static void get_policy_nodemask(struct mempolicy *p, nodemask_t *nodes) } } -static int lookup_node(struct mm_struct *mm, unsigned long addr) +static int lookup_node(unsigned long addr) { struct page *p; int err; - err = get_user_pages(current, mm, addr & PAGE_MASK, 1, 0, 0, &p, NULL); + err = get_user_pages(addr & PAGE_MASK, 1, 0, 0, &p, NULL); if (err >= 0) { err = page_to_nid(p); put_page(p); @@ -904,7 +904,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask, if (flags & MPOL_F_NODE) { if (flags & MPOL_F_ADDR) { - err = lookup_node(mm, addr); + err = lookup_node(addr); if (err < 0) goto out; *policy = err; diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c index d4f5f220a8e5..10297f7a89ba 100644 --- a/net/ceph/pagevec.c +++ b/net/ceph/pagevec.c @@ -24,7 +24,7 @@ struct page **ceph_get_direct_page_vector(const void __user *data, return ERR_PTR(-ENOMEM); while (got < num_pages) { - rc = get_user_pages_unlocked(current, current->mm, + rc = get_user_pages_unlocked( (unsigned long)data + ((unsigned long)got * PAGE_SIZE), num_pages - got, write_page, 0, pages + got); if (rc < 0) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index a11cfd20a6a0..0253ad900ec3 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1264,15 +1264,16 @@ unsigned long kvm_vcpu_gfn_to_hva_prot(struct kvm_vcpu *vcpu, gfn_t gfn, bool *w return gfn_to_hva_memslot_prot(slot, gfn, writable); } -static int get_user_page_nowait(struct task_struct *tsk, struct mm_struct *mm, - unsigned long start, int write, struct page **page) +static int get_user_page_nowait(unsigned long start, int write, + struct page **page) { int flags = FOLL_TOUCH | FOLL_NOWAIT | FOLL_HWPOISON | FOLL_GET; if (write) flags |= FOLL_WRITE; - return __get_user_pages(tsk, mm, start, 1, flags, page, NULL, NULL); + return __get_user_pages(current, current->mm, start, 1, flags, page, + NULL, NULL); } static inline int check_user_page_hwpoison(unsigned long addr) @@ -1334,8 +1335,7 @@ static int hva_to_pfn_slow(unsigned long addr, bool *async, bool write_fault, if (async) { down_read(¤t->mm->mmap_sem); - npages = get_user_page_nowait(current, current->mm, - addr, write_fault, page); + npages = get_user_page_nowait(addr, write_fault, page); up_read(¤t->mm->mmap_sem); } else npages = __get_user_pages_unlocked(current, current->mm, addr, 1, |