btrfs: drop checks for mandatory extent_io_ops callbacks

We know that eadpage_end_io_hook, submit_bio_hook and merge_bio_hook are
always defined so we can drop the checks before we call them.

Signed-off-by: David Sterba <dsterba@suse.com>

1 files changed, 3 insertions, 4 deletions

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 94beb758e8aa..0786985a8cc5 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -2567,8 +2567,7 @@ static void end_bio_extent_readpage(struct bio *bio)
                 len = bvec->bv_len;
 
                 mirror = io_bio->mirror_num;
-                if (likely(uptodate && tree->ops &&
-                           tree->ops->readpage_end_io_hook)) {
+                if (likely(uptodate && tree->ops)) {
                         ret = tree->ops->readpage_end_io_hook(io_bio, offset,
                                                               page, start, end,
                                                               mirror);
@@ -2731,7 +2730,7 @@ static int __must_check submit_one_bio(struct bio *bio, int mirror_num,
         bio->bi_private = NULL;
         bio_get(bio);
 
-        if (tree->ops && tree->ops->submit_bio_hook)
+        if (tree->ops)
                 ret = tree->ops->submit_bio_hook(page->mapping->host, bio,
                                            mirror_num, bio_flags, start);
         else
@@ -2746,7 +2745,7 @@ static int merge_bio(struct extent_io_tree *tree, struct page *page,
                      unsigned long bio_flags)
 {
         int ret = 0;
-        if (tree->ops && tree->ops->merge_bio_hook)
+        if (tree->ops)
                 ret = tree->ops->merge_bio_hook(page, offset, size, bio,
                                                 bio_flags);
         return ret;