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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-17 12:38:51 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-17 12:38:51 -0800 |
commit | a0e136e5da98f10ecb41a673374a04102af45e2b (patch) | |
tree | 05cb9275d1f8290f2750a9d4ec211d7d3b367228 /drivers | |
parent | 16382e17c0ff583df2d5eed56ca7c771d637e9d1 (diff) | |
parent | 77478715ba9242017976fd01de189e77fa072f51 (diff) | |
download | linux-a0e136e5da98f10ecb41a673374a04102af45e2b.tar.gz linux-a0e136e5da98f10ecb41a673374a04102af45e2b.tar.bz2 linux-a0e136e5da98f10ecb41a673374a04102af45e2b.zip |
Merge branch 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull get_user_pages_fast() conversion from Al Viro:
"A bunch of places switched to get_user_pages_fast()"
* 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
ceph: use get_user_pages_fast()
pvr2fs: use get_user_pages_fast()
atomisp: use get_user_pages_fast()
st: use get_user_pages_fast()
via_dmablit(): use get_user_pages_fast()
fsl_hypervisor: switch to get_user_pages_fast()
rapidio: switch to get_user_pages_fast()
vchiq_2835_arm: switch to get_user_pages_fast()
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/via/via_dmablit.c | 6 | ||||
-rw-r--r-- | drivers/rapidio/devices/rio_mport_cdev.c | 6 | ||||
-rw-r--r-- | drivers/scsi/st.c | 6 | ||||
-rw-r--r-- | drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c | 6 | ||||
-rw-r--r-- | drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c | 20 | ||||
-rw-r--r-- | drivers/video/fbdev/pvr2fb.c | 4 | ||||
-rw-r--r-- | drivers/virt/fsl_hypervisor.c | 4 |
7 files changed, 18 insertions, 34 deletions
diff --git a/drivers/gpu/drm/via/via_dmablit.c b/drivers/gpu/drm/via/via_dmablit.c index 98aae9809249..32c9938e1e1e 100644 --- a/drivers/gpu/drm/via/via_dmablit.c +++ b/drivers/gpu/drm/via/via_dmablit.c @@ -238,9 +238,9 @@ via_lock_all_dma_pages(drm_via_sg_info_t *vsg, drm_via_dmablit_t *xfer) vsg->pages = vzalloc(sizeof(struct page *) * vsg->num_pages); if (NULL == vsg->pages) return -ENOMEM; - ret = get_user_pages_unlocked((unsigned long)xfer->mem_addr, - vsg->num_pages, vsg->pages, - (vsg->direction == DMA_FROM_DEVICE) ? FOLL_WRITE : 0); + ret = get_user_pages_fast((unsigned long)xfer->mem_addr, + vsg->num_pages, vsg->direction == DMA_FROM_DEVICE, + vsg->pages); if (ret != vsg->num_pages) { if (ret < 0) return ret; diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c index 5c1b6388122a..665d9e94a7e1 100644 --- a/drivers/rapidio/devices/rio_mport_cdev.c +++ b/drivers/rapidio/devices/rio_mport_cdev.c @@ -889,11 +889,9 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode, goto err_req; } - pinned = get_user_pages_unlocked( + pinned = get_user_pages_fast( (unsigned long)xfer->loc_addr & PAGE_MASK, - nr_pages, - page_list, - dir == DMA_FROM_DEVICE ? FOLL_WRITE : 0); + nr_pages, dir == DMA_FROM_DEVICE, page_list); if (pinned != nr_pages) { if (pinned < 0) { diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 94e402ed30f6..b141d7641a2e 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -4920,11 +4920,7 @@ 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( - uaddr, - nr_pages, - pages, - rw == READ ? FOLL_WRITE : 0); /* don't force */ + res = get_user_pages_fast(uaddr, nr_pages, rw == READ, pages); /* Errors and no page mapped should return here */ if (res < nr_pages) diff --git a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c index 6e2dce7a5a2d..79bd540d7882 100644 --- a/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c +++ b/drivers/staging/media/atomisp/pci/atomisp2/hmm/hmm_bo.c @@ -1020,10 +1020,8 @@ static int alloc_user_pages(struct hmm_buffer_object *bo, } else { /*Handle frame buffer allocated in user space*/ mutex_unlock(&bo->mutex); - down_read(¤t->mm->mmap_sem); - page_nr = get_user_pages((unsigned long)userptr, - (int)(bo->pgnr), 1, pages, NULL); - up_read(¤t->mm->mmap_sem); + page_nr = get_user_pages_fast((unsigned long)userptr, + (int)(bo->pgnr), 1, pages); mutex_lock(&bo->mutex); bo->mem_type = HMM_BO_MEM_TYPE_USER; } diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c index eea2d78b0ec6..315b49c1de3b 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c @@ -90,8 +90,7 @@ static irqreturn_t vchiq_doorbell_irq(int irq, void *dev_id); static struct vchiq_pagelist_info * -create_pagelist(char __user *buf, size_t count, unsigned short type, - struct task_struct *task); +create_pagelist(char __user *buf, size_t count, unsigned short type); static void free_pagelist(struct vchiq_pagelist_info *pagelistinfo, @@ -255,8 +254,7 @@ vchiq_prepare_bulk_data(VCHIQ_BULK_T *bulk, VCHI_MEM_HANDLE_T memhandle, pagelistinfo = create_pagelist((char __user *)offset, size, (dir == VCHIQ_BULK_RECEIVE) ? PAGELIST_READ - : PAGELIST_WRITE, - current); + : PAGELIST_WRITE); if (!pagelistinfo) return VCHIQ_ERROR; @@ -395,8 +393,7 @@ cleanup_pagelistinfo(struct vchiq_pagelist_info *pagelistinfo) */ static struct vchiq_pagelist_info * -create_pagelist(char __user *buf, size_t count, unsigned short type, - struct task_struct *task) +create_pagelist(char __user *buf, size_t count, unsigned short type) { PAGELIST_T *pagelist; struct vchiq_pagelist_info *pagelistinfo; @@ -476,14 +473,11 @@ create_pagelist(char __user *buf, size_t count, unsigned short type, } /* do not try and release vmalloc pages */ } else { - down_read(&task->mm->mmap_sem); - actual_pages = get_user_pages( - (unsigned long)buf & PAGE_MASK, + actual_pages = get_user_pages_fast( + (unsigned long)buf & PAGE_MASK, num_pages, - (type == PAGELIST_READ) ? FOLL_WRITE : 0, - pages, - NULL /*vmas */); - up_read(&task->mm->mmap_sem); + type == PAGELIST_READ, + pages); if (actual_pages != num_pages) { vchiq_log_info(vchiq_arm_log_level, diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c index 867c5218968f..a582d3ae7ac1 100644 --- a/drivers/video/fbdev/pvr2fb.c +++ b/drivers/video/fbdev/pvr2fb.c @@ -686,9 +686,7 @@ static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, if (!pages) return -ENOMEM; - ret = get_user_pages_unlocked((unsigned long)buf, nr_pages, pages, - FOLL_WRITE); - + ret = get_user_pages_fast((unsigned long)buf, nr_pages, true, pages); if (ret < nr_pages) { nr_pages = ret; ret = -EINVAL; diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c index d993df5586c0..d70ad6d38879 100644 --- a/drivers/virt/fsl_hypervisor.c +++ b/drivers/virt/fsl_hypervisor.c @@ -243,8 +243,8 @@ static long ioctl_memcpy(struct fsl_hv_ioctl_memcpy __user *p) sg_list = PTR_ALIGN(sg_list_unaligned, sizeof(struct fh_sg_list)); /* Get the physical addresses of the source buffer */ - num_pinned = get_user_pages_unlocked(param.local_vaddr - lb_offset, - num_pages, pages, (param.source == -1) ? 0 : FOLL_WRITE); + num_pinned = get_user_pages_fast(param.local_vaddr - lb_offset, + num_pages, param.source != -1, pages); if (num_pinned != num_pages) { /* get_user_pages() failed */ |