maple: Kill useless private_data pointer.

[linux-2.6] / fs / bio.c

diff --git a/fs/bio.c b/fs/bio.c
index 7761c84c70320f31edf90aff5c851da796efca93..25f1af0d81e5bee47ee8487b27ca8e0152b6d156 100644 (file)
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -325,10 +325,19 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
                if (page == prev->bv_page &&
                    offset == prev->bv_offset + prev->bv_len) {
                        prev->bv_len += len;
-                       if (q->merge_bvec_fn &&
-                           q->merge_bvec_fn(q, bio, prev) < len) {
-                               prev->bv_len -= len;
-                               return 0;
+
+                       if (q->merge_bvec_fn) {
+                               struct bvec_merge_data bvm = {
+                                       .bi_bdev = bio->bi_bdev,
+                                       .bi_sector = bio->bi_sector,
+                                       .bi_size = bio->bi_size,
+                                       .bi_rw = bio->bi_rw,
+                               };
+
+                               if (q->merge_bvec_fn(q, &bvm, prev) < len) {
+                                       prev->bv_len -= len;
+                                       return 0;
+                               }
                        }
 
                        goto done;
@@ -369,11 +378,18 @@ static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
         * queue to get further control
         */
        if (q->merge_bvec_fn) {
+               struct bvec_merge_data bvm = {
+                       .bi_bdev = bio->bi_bdev,
+                       .bi_sector = bio->bi_sector,
+                       .bi_size = bio->bi_size,
+                       .bi_rw = bio->bi_rw,
+               };
+
                /*
                 * merge_bvec_fn() returns number of bytes it can accept
                 * at this offset
                 */
-               if (q->merge_bvec_fn(q, bio, bvec) < len) {
+               if (q->merge_bvec_fn(q, &bvm, bvec) < len) {
                        bvec->bv_page = NULL;
                        bvec->bv_len = 0;
                        bvec->bv_offset = 0;
@@ -705,12 +721,8 @@ static struct bio *__bio_map_user_iov(struct request_queue *q,
                const int local_nr_pages = end - start;
                const int page_limit = cur_page + local_nr_pages;
                
-               down_read(&current->mm->mmap_sem);
-               ret = get_user_pages(current, current->mm, uaddr,
-                                    local_nr_pages,
-                                    write_to_vm, 0, &pages[cur_page], NULL);
-               up_read(&current->mm->mmap_sem);
-
+               ret = get_user_pages_fast(uaddr, local_nr_pages,
+                               write_to_vm, &pages[cur_page]);
                if (ret < local_nr_pages) {
                        ret = -EFAULT;
                        goto out_unmap;