block: switch bios to blk_status_t

[mirror_ubuntu-artful-kernel.git] / fs / btrfs / extent_io.c

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index d8da3edf2ac39ebcc0bde0ede7da74f0f81ad9ea..35cbb6ceb70d50ffa7f4d59224527c18ff3463b4 100644 (file)
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2399,6 +2399,7 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
        struct extent_io_tree *tree = &BTRFS_I(inode)->io_tree;
        struct bio *bio;
        int read_mode = 0;
+       blk_status_t status;
        int ret;
 
        BUG_ON(bio_op(failed_bio) == REQ_OP_WRITE);
@@ -2431,11 +2432,12 @@ static int bio_readpage_error(struct bio *failed_bio, u64 phy_offset,
                "Repair Read Error: submitting new read[%#x] to this_mirror=%d, in_validation=%d",
                read_mode, failrec->this_mirror, failrec->in_validation);
 
-       ret = tree->ops->submit_bio_hook(inode, bio, failrec->this_mirror,
+       status = tree->ops->submit_bio_hook(inode, bio, failrec->this_mirror,
                                         failrec->bio_flags, 0);
-       if (ret) {
+       if (status) {
                free_io_failure(BTRFS_I(inode), failrec);
                bio_put(bio);
+               ret = blk_status_to_errno(status);
        }
 
        return ret;
@@ -2474,6 +2476,7 @@ void end_extent_writepage(struct page *page, int err, u64 start, u64 end)
  */
 static void end_bio_extent_writepage(struct bio *bio)
 {
+       int error = blk_status_to_errno(bio->bi_status);
        struct bio_vec *bvec;
        u64 start;
        u64 end;
@@ -2503,7 +2506,7 @@ static void end_bio_extent_writepage(struct bio *bio)
                start = page_offset(page);
                end = start + bvec->bv_offset + bvec->bv_len - 1;
 
-               end_extent_writepage(page, bio->bi_error, start, end);
+               end_extent_writepage(page, error, start, end);
                end_page_writeback(page);
        }
 
@@ -2536,7 +2539,7 @@ endio_readpage_release_extent(struct extent_io_tree *tree, u64 start, u64 len,
 static void end_bio_extent_readpage(struct bio *bio)
 {
        struct bio_vec *bvec;
-       int uptodate = !bio->bi_error;
+       int uptodate = !bio->bi_status;
        struct btrfs_io_bio *io_bio = btrfs_io_bio(bio);
        struct extent_io_tree *tree;
        u64 offset = 0;
@@ -2556,7 +2559,7 @@ static void end_bio_extent_readpage(struct bio *bio)
 
                btrfs_debug(fs_info,
                        "end_bio_extent_readpage: bi_sector=%llu, err=%d, mirror=%u",
-                       (u64)bio->bi_iter.bi_sector, bio->bi_error,
+                       (u64)bio->bi_iter.bi_sector, bio->bi_status,
                        io_bio->mirror_num);
                tree = &BTRFS_I(inode)->io_tree;
 
@@ -2615,7 +2618,7 @@ static void end_bio_extent_readpage(struct bio *bio)
                                ret = bio_readpage_error(bio, offset, page,
                                                         start, end, mirror);
                                if (ret == 0) {
-                                       uptodate = !bio->bi_error;
+                                       uptodate = !bio->bi_status;
                                        offset += len;
                                        continue;
                                }
@@ -2673,7 +2676,7 @@ readpage_ok:
                endio_readpage_release_extent(tree, extent_start, extent_len,
                                              uptodate);
        if (io_bio->end_io)
-               io_bio->end_io(io_bio, bio->bi_error);
+               io_bio->end_io(io_bio, blk_status_to_errno(bio->bi_status));
        bio_put(bio);
 }
 
@@ -2743,7 +2746,7 @@ struct bio *btrfs_io_bio_alloc(gfp_t gfp_mask, unsigned int nr_iovecs)
 static int __must_check submit_one_bio(struct bio *bio, int mirror_num,
                                       unsigned long bio_flags)
 {
-       int ret = 0;
+       blk_status_t ret = 0;
        struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
        struct page *page = bvec->bv_page;
        struct extent_io_tree *tree = bio->bi_private;
@@ -2761,7 +2764,7 @@ static int __must_check submit_one_bio(struct bio *bio, int mirror_num,
                btrfsic_submit_bio(bio);
 
        bio_put(bio);
-       return ret;
+       return blk_status_to_errno(ret);
 }
 
 static int merge_bio(struct extent_io_tree *tree, struct page *page,
@@ -3707,7 +3710,7 @@ static void end_bio_extent_buffer_writepage(struct bio *bio)
                BUG_ON(!eb);
                done = atomic_dec_and_test(&eb->io_pages);
 
-               if (bio->bi_error ||
+               if (bio->bi_status ||
                    test_bit(EXTENT_BUFFER_WRITE_ERR, &eb->bflags)) {
                        ClearPageUptodate(page);
                        set_btree_ioerr(page);