Replace uses of get_user_pages() with get_user_pages_fast(). It looks nicer and should be faster in most cases. Signed-off-by: Miklos Szeredi --- fs/fuse/dev.c | 5 +---- fs/fuse/file.c | 5 +---- 2 files changed, 2 insertions(+), 8 deletions(-) Index: linux-2.6/fs/fuse/dev.c =================================================================== --- linux-2.6.orig/fs/fuse/dev.c 2010-04-26 11:33:57.000000000 +0200 +++ linux-2.6/fs/fuse/dev.c 2010-04-28 15:50:32.000000000 +0200 @@ -551,10 +551,7 @@ static int fuse_copy_fill(struct fuse_co cs->iov++; cs->nr_segs--; } - down_read(¤t->mm->mmap_sem); - err = get_user_pages(current, current->mm, cs->addr, 1, cs->write, 0, - &cs->pg, NULL); - up_read(¤t->mm->mmap_sem); + err = get_user_pages_fast(cs->addr, 1, cs->write, &cs->pg); if (err < 0) return err; BUG_ON(err != 1); Index: linux-2.6/fs/fuse/file.c =================================================================== --- linux-2.6.orig/fs/fuse/file.c 2010-04-26 11:33:57.000000000 +0200 +++ linux-2.6/fs/fuse/file.c 2010-04-28 15:50:32.000000000 +0200 @@ -994,10 +994,7 @@ static int fuse_get_user_pages(struct fu nbytes = min_t(size_t, nbytes, FUSE_MAX_PAGES_PER_REQ << PAGE_SHIFT); npages = (nbytes + offset + PAGE_SIZE - 1) >> PAGE_SHIFT; npages = clamp(npages, 1, FUSE_MAX_PAGES_PER_REQ); - down_read(¤t->mm->mmap_sem); - npages = get_user_pages(current, current->mm, user_addr, npages, !write, - 0, req->pages, NULL); - up_read(¤t->mm->mmap_sem); + npages = get_user_pages_fast(user_addr, npages, !write, req->pages); if (npages < 0) return npages; -- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/