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btrfs: extent_io: Kill the forward declaration of flush_write_bio
There is no need to forward declare flush_write_bio(), as it only depends on submit_one_bio(). Both of them are pretty small, just move them to kill the forward declaration. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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1 changed files with 32 additions and 34 deletions
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@ -147,7 +147,38 @@ static int add_extent_changeset(struct extent_state *state, unsigned bits,
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return ret;
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}
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static void flush_write_bio(struct extent_page_data *epd);
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static int __must_check submit_one_bio(struct bio *bio, int mirror_num,
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unsigned long bio_flags)
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{
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blk_status_t ret = 0;
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struct bio_vec *bvec = bio_last_bvec_all(bio);
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struct page *page = bvec->bv_page;
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struct extent_io_tree *tree = bio->bi_private;
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u64 start;
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start = page_offset(page) + bvec->bv_offset;
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bio->bi_private = NULL;
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if (tree->ops)
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ret = tree->ops->submit_bio_hook(tree->private_data, bio,
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mirror_num, bio_flags, start);
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else
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btrfsic_submit_bio(bio);
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return blk_status_to_errno(ret);
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}
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static void flush_write_bio(struct extent_page_data *epd)
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{
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if (epd->bio) {
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int ret;
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ret = submit_one_bio(epd->bio, 0, 0);
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BUG_ON(ret < 0); /* -ENOMEM */
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epd->bio = NULL;
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}
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}
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int __init extent_io_init(void)
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{
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@ -2690,28 +2721,6 @@ struct bio *btrfs_bio_clone_partial(struct bio *orig, int offset, int size)
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return bio;
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}
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static int __must_check submit_one_bio(struct bio *bio, int mirror_num,
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unsigned long bio_flags)
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{
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blk_status_t ret = 0;
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struct bio_vec *bvec = bio_last_bvec_all(bio);
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struct page *page = bvec->bv_page;
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struct extent_io_tree *tree = bio->bi_private;
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u64 start;
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start = page_offset(page) + bvec->bv_offset;
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bio->bi_private = NULL;
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if (tree->ops)
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ret = tree->ops->submit_bio_hook(tree->private_data, bio,
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mirror_num, bio_flags, start);
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else
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btrfsic_submit_bio(bio);
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return blk_status_to_errno(ret);
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}
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/*
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* @opf: bio REQ_OP_* and REQ_* flags as one value
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* @tree: tree so we can call our merge_bio hook
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@ -4005,17 +4014,6 @@ static int extent_write_cache_pages(struct address_space *mapping,
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return ret;
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}
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static void flush_write_bio(struct extent_page_data *epd)
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{
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if (epd->bio) {
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int ret;
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ret = submit_one_bio(epd->bio, 0, 0);
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BUG_ON(ret < 0); /* -ENOMEM */
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epd->bio = NULL;
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}
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}
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int extent_write_full_page(struct page *page, struct writeback_control *wbc)
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{
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int ret;
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