diff options
| -rw-r--r-- | drivers/media/pci/ivtv/ivtv-udma.c | 6 | ||||
| -rw-r--r-- | drivers/scsi/st.c | 7 | ||||
| -rw-r--r-- | drivers/video/fbdev/pvr2fb.c | 6 | ||||
| -rw-r--r-- | mm/process_vm_access.c | 7 | ||||
| -rw-r--r-- | net/ceph/pagevec.c | 6 |
5 files changed, 10 insertions, 22 deletions
diff --git a/drivers/media/pci/ivtv/ivtv-udma.c b/drivers/media/pci/ivtv/ivtv-udma.c index bee2329..24152ac 100644 --- a/drivers/media/pci/ivtv/ivtv-udma.c +++ b/drivers/media/pci/ivtv/ivtv-udma.c @@ -124,10 +124,8 @@ int ivtv_udma_setup(struct ivtv *itv, unsigned long ivtv_dest_addr, } /* Get user pages for DMA Xfer */ - down_read(¤t->mm->mmap_sem); - err = get_user_pages(current, current->mm, - user_dma.uaddr, user_dma.page_count, 0, 1, dma->map, NULL); - up_read(¤t->mm->mmap_sem); + err = get_user_pages_unlocked(current, current->mm, + 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/scsi/st.c b/drivers/scsi/st.c index 128d3b5..9a1c342 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -4551,18 +4551,15 @@ static int sgl_map_user_pages(struct st_buffer *STbp, return -ENOMEM; /* Try to fault in all of the necessary pages */ - down_read(¤t->mm->mmap_sem); /* rw==READ means read from drive, write into memory area */ - res = get_user_pages( + res = get_user_pages_unlocked( current, current->mm, uaddr, nr_pages, rw == READ, 0, /* don't force */ - pages, - NULL); - up_read(¤t->mm->mmap_sem); + pages); /* Errors and no page mapped should return here */ if (res < nr_pages) diff --git a/drivers/video/fbdev/pvr2fb.c b/drivers/video/fbdev/pvr2fb.c index 7c74f58..0e24eb9 100644 --- a/drivers/video/fbdev/pvr2fb.c +++ b/drivers/video/fbdev/pvr2fb.c @@ -686,10 +686,8 @@ static ssize_t pvr2fb_write(struct fb_info *info, const char *buf, if (!pages) return -ENOMEM; - down_read(¤t->mm->mmap_sem); - ret = get_user_pages(current, current->mm, (unsigned long)buf, - nr_pages, WRITE, 0, pages, NULL); - up_read(¤t->mm->mmap_sem); + ret = get_user_pages_unlocked(current, current->mm, (unsigned long)buf, + nr_pages, WRITE, 0, pages); if (ret < nr_pages) { nr_pages = ret; diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c index 5077afc..b159769 100644 --- a/mm/process_vm_access.c +++ b/mm/process_vm_access.c @@ -99,11 +99,8 @@ static int process_vm_rw_single_vec(unsigned long addr, size_t bytes; /* Get the pages we're interested in */ - down_read(&mm->mmap_sem); - pages = get_user_pages(task, mm, pa, pages, - vm_write, 0, process_pages, NULL); - up_read(&mm->mmap_sem); - + pages = get_user_pages_unlocked(task, mm, pa, pages, + vm_write, 0, process_pages); if (pages <= 0) return -EFAULT; diff --git a/net/ceph/pagevec.c b/net/ceph/pagevec.c index 5550130..096d914 100644 --- a/net/ceph/pagevec.c +++ b/net/ceph/pagevec.c @@ -23,17 +23,15 @@ struct page **ceph_get_direct_page_vector(const void __user *data, if (!pages) return ERR_PTR(-ENOMEM); - down_read(¤t->mm->mmap_sem); while (got < num_pages) { - rc = get_user_pages(current, current->mm, + rc = get_user_pages_unlocked(current, current->mm, (unsigned long)data + ((unsigned long)got * PAGE_SIZE), - num_pages - got, write_page, 0, pages + got, NULL); + num_pages - got, write_page, 0, pages + got); if (rc < 0) break; BUG_ON(rc == 0); got += rc; } - up_read(¤t->mm->mmap_sem); if (rc < 0) goto fail; return pages; |
