d4e3b928ab
Control flow integrity is now checking that type signatures match on indirect function calls. That breaks closures, which embed a work_struct in a closure in such a way that a closure_fn may also be used as a workqueue fn by the underlying closure code. So we have to change closure fns to take a work_struct as their argument - but that results in a loss of clarity, as closure fns have different semantics from normal workqueue functions (they run owning a ref on the closure, which must be released with continue_at() or closure_return()). Thus, this patc introduces CLOSURE_CALLBACK() and closure_type() macros as suggested by Kees, to smooth things over a bit. Suggested-by: Kees Cook <keescook@chromium.org> Cc: Coly Li <colyli@suse.de> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
47 lines
997 B
C
47 lines
997 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHE_REQUEST_H_
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#define _BCACHE_REQUEST_H_
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struct data_insert_op {
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struct closure cl;
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struct cache_set *c;
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struct bio *bio;
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struct workqueue_struct *wq;
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unsigned int inode;
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uint16_t write_point;
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uint16_t write_prio;
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blk_status_t status;
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union {
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uint16_t flags;
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struct {
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unsigned int bypass:1;
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unsigned int writeback:1;
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unsigned int flush_journal:1;
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unsigned int csum:1;
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unsigned int replace:1;
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unsigned int replace_collision:1;
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unsigned int insert_data_done:1;
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};
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};
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struct keylist insert_keys;
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BKEY_PADDED(replace_key);
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};
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unsigned int bch_get_congested(const struct cache_set *c);
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CLOSURE_CALLBACK(bch_data_insert);
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void bch_cached_dev_request_init(struct cached_dev *dc);
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void cached_dev_submit_bio(struct bio *bio);
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void bch_flash_dev_request_init(struct bcache_device *d);
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void flash_dev_submit_bio(struct bio *bio);
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extern struct kmem_cache *bch_search_cache;
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#endif /* _BCACHE_REQUEST_H_ */
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