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block: prohibit calls to bio_chain_endio 

Now that all potential callers of bio_chain_endio have been
eliminated, completely prohibit any future calls to this function.

Suggested-by: Ming Lei <ming.lei@redhat.com>
Suggested-by: Andreas Gruenbacher <agruenba@redhat.com>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Shida Zhang <zhangshida@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
pull/1354/merge
Shida Zhang 2025-12-09 17:01:57 +08:00 committed by Jens Axboe
parent 53280e3984
commit cfdeb588ae
1 changed files with 5 additions and 1 deletions
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6
block/bio.c
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@ -321,9 +321,13 @@ static struct bio *__bio_chain_endio(struct bio *bio)
return parent; return parent;
} }
/*
* This function should only be used as a flag and must never be called.
* If execution reaches here, it indicates a serious programming error.
*/
static void bio_chain_endio(struct bio *bio) static void bio_chain_endio(struct bio *bio)
{ {
bio_endio(__bio_chain_endio(bio)); BUG();
} }
/** /**