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btrfs: Remove extent_io_ops::split_extent_hook callback
This is the counterpart to merge_extent_hook, similarly, it's used only for data/freespace inodes so let's remove it, rename it and call it directly where necessary. No functional changes. Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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@ -3156,6 +3156,8 @@ void btrfs_clear_delalloc_extent(struct inode *inode,
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struct extent_state *state, unsigned *bits);
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void btrfs_merge_delalloc_extent(struct inode *inode, struct extent_state *new,
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struct extent_state *other);
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void btrfs_split_delalloc_extent(struct inode *inode,
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struct extent_state *orig, u64 split);
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int btrfs_merge_bio_hook(struct page *page, unsigned long offset,
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size_t size, struct bio *bio,
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unsigned long bio_flags);
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@ -445,13 +445,6 @@ static int insert_state(struct extent_io_tree *tree,
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return 0;
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}
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static void split_cb(struct extent_io_tree *tree, struct extent_state *orig,
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u64 split)
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{
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if (tree->ops && tree->ops->split_extent_hook)
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tree->ops->split_extent_hook(tree->private_data, orig, split);
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}
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/*
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* split a given extent state struct in two, inserting the preallocated
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* struct 'prealloc' as the newly created second half. 'split' indicates an
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@ -471,7 +464,8 @@ static int split_state(struct extent_io_tree *tree, struct extent_state *orig,
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{
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struct rb_node *node;
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split_cb(tree, orig, split);
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if (tree->private_data && is_data_inode(tree->private_data))
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btrfs_split_delalloc_extent(tree->private_data, orig, split);
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prealloc->start = orig->start;
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prealloc->end = split - 1;
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@ -102,12 +102,6 @@ struct extent_io_ops {
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struct page *page, u64 start, u64 end,
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int mirror);
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int (*readpage_io_failed_hook)(struct page *page, int failed_mirror);
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/*
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* Optional hooks, called if the pointer is not NULL
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*/
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void (*split_extent_hook)(void *private_data,
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struct extent_state *orig, u64 split);
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};
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struct extent_io_tree {
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@ -1609,10 +1609,9 @@ int btrfs_run_delalloc_range(void *private_data, struct page *locked_page,
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return ret;
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}
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static void btrfs_split_extent_hook(void *private_data,
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struct extent_state *orig, u64 split)
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void btrfs_split_delalloc_extent(struct inode *inode,
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struct extent_state *orig, u64 split)
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{
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struct inode *inode = private_data;
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u64 size;
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/* not delalloc, ignore it */
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@ -10504,9 +10503,6 @@ static const struct extent_io_ops btrfs_extent_io_ops = {
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.submit_bio_hook = btrfs_submit_bio_hook,
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.readpage_end_io_hook = btrfs_readpage_end_io_hook,
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.readpage_io_failed_hook = btrfs_readpage_io_failed_hook,
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/* optional callbacks */
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.split_extent_hook = btrfs_split_extent_hook,
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};
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/*
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