Remove Btrfs compat code for older kernels

Btrfs had compatibility code for kernels back to 2.6.18.  These have
been removed, and will be maintained in a separate backport
git tree from now on.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 0 insertions, 20 deletions

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index b9e5c2d82dde..ddf89626498a 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2080,20 +2080,11 @@ int btrfs_unplug_page(struct btrfs_mapping_tree *map_tree,
 }
 
 
-#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,23)
 static void end_bio_multi_stripe(struct bio *bio, int err)
-#else
-static int end_bio_multi_stripe(struct bio *bio,
-                                   unsigned int bytes_done, int err)
-#endif
 {
         struct btrfs_multi_bio *multi = bio->bi_private;
         int is_orig_bio = 0;
 
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
-        if (bio->bi_size)
-                return 1;
-#endif
         if (err)
                 atomic_inc(&multi->error);
 
@@ -2122,17 +2113,10 @@ static int end_bio_multi_stripe(struct bio *bio,
                 }
                 kfree(multi);
 
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
-                bio_endio(bio, bio->bi_size, err);
-#else
                 bio_endio(bio, err);
-#endif
         } else if (!is_orig_bio) {
                 bio_put(bio);
         }
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
-        return 0;
-#endif
 }
 
 struct async_sched {
@@ -2248,11 +2232,7 @@ int btrfs_map_bio(struct btrfs_root *root, int rw, struct bio *bio,
                 } else {
                         bio->bi_bdev = root->fs_info->fs_devices->latest_bdev;
                         bio->bi_sector = logical >> 9;
-#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
-                        bio_endio(bio, bio->bi_size, -EIO);
-#else
                         bio_endio(bio, -EIO);
-#endif
                 }
                 dev_nr++;
         }