[PATCH 5/9] btrfs: Remove extent_io_ops::check_extent_io_range callback

[Nikolay Borisov]

This callback was only used in debug builds by btrfs_leak_debug_check.
A better approach is to move its implementation in
btrfs_leak_debug_check and ensure the latter is only executed for extent
tree which have ->private_data set i.e. relate to a data node and not
the btree one. No functional changes.

Reviewed-by: Josef Bacik <jo...@toxicpanda.com>
Signed-off-by: Nikolay Borisov <nbori...@suse.com>
Reviewed-by: David Sterba <dste...@suse.com>
Signed-off-by: David Sterba <dste...@suse.com>
---
 fs/btrfs/extent_io.c | 15 ++++++++++++---
 fs/btrfs/extent_io.h |  2 --
 fs/btrfs/inode.c     | 15 ---------------
 3 files changed, 12 insertions(+), 20 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 33d761ff5bd3..c63334c6b008 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -89,9 +89,18 @@ void btrfs_leak_debug_check(void)
 static inline void __btrfs_debug_check_extent_io_range(const char *caller,
                struct extent_io_tree *tree, u64 start, u64 end)
 {
-       if (tree->ops && tree->ops->check_extent_io_range)
-               tree->ops->check_extent_io_range(tree->private_data, caller,
-                                                start, end);
+       struct inode *inode = tree->private_data;
+       u64 isize;
+
+       if (!inode || !is_data_inode(inode))
+               return;
+
+       isize = i_size_read(inode);
+       if (end >= PAGE_SIZE && (end % 2) == 0 && end != isize - 1) {
+               btrfs_debug_rl(BTRFS_I(inode)->root->fs_info,
+                   "%s: ino %llu isize %llu odd range [%llu,%llu]",
+                       caller, btrfs_ino(BTRFS_I(inode)), isize, start, end);
+       }
 }
 #else
 #define btrfs_leak_debug_add(new, head)        do {} while (0)
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 415ea7c2b058..3cb84a0fbaab 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -116,8 +116,6 @@ struct extent_io_ops {
                                  struct extent_state *other);
        void (*split_extent_hook)(void *private_data,
                                  struct extent_state *orig, u64 split);
-       void (*check_extent_io_range)(void *private_data, const char *caller,
-                                     u64 start, u64 end);
 };
 
 struct extent_io_tree {
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 536635efa069..dbe956e1a50f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -10439,20 +10439,6 @@ static int btrfs_readpage_io_failed_hook(struct page 
*page, int failed_mirror)
        return -EAGAIN;
 }
 
-static void btrfs_check_extent_io_range(void *private_data, const char *caller,
-                                       u64 start, u64 end)
-{
-       struct inode *inode = private_data;
-       u64 isize;
-
-       isize = i_size_read(inode);
-       if (end >= PAGE_SIZE && (end % 2) == 0 && end != isize - 1) {
-               btrfs_debug_rl(BTRFS_I(inode)->root->fs_info,
-                   "%s: ino %llu isize %llu odd range [%llu,%llu]",
-                       caller, btrfs_ino(BTRFS_I(inode)), isize, start, end);
-       }
-}
-
 void btrfs_set_range_writeback(struct extent_io_tree *tree, u64 start, u64 end)
 {
        struct inode *inode = tree->private_data;
@@ -10518,7 +10504,6 @@ static const struct extent_io_ops btrfs_extent_io_ops = 
{
        .clear_bit_hook = btrfs_clear_bit_hook,
        .merge_extent_hook = btrfs_merge_extent_hook,
        .split_extent_hook = btrfs_split_extent_hook,
-       .check_extent_io_range = btrfs_check_extent_io_range,
 };
 
 /*
-- 
2.17.1