mirror of
https://github.com/torvalds/linux.git
synced 2024-12-12 14:12:51 +00:00
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>
48 lines
997 B
C
48 lines
997 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef _BCACHE_REQUEST_H_
|
|
#define _BCACHE_REQUEST_H_
|
|
|
|
struct data_insert_op {
|
|
struct closure cl;
|
|
struct cache_set *c;
|
|
struct bio *bio;
|
|
struct workqueue_struct *wq;
|
|
|
|
unsigned int inode;
|
|
uint16_t write_point;
|
|
uint16_t write_prio;
|
|
blk_status_t status;
|
|
|
|
union {
|
|
uint16_t flags;
|
|
|
|
struct {
|
|
unsigned int bypass:1;
|
|
unsigned int writeback:1;
|
|
unsigned int flush_journal:1;
|
|
unsigned int csum:1;
|
|
|
|
unsigned int replace:1;
|
|
unsigned int replace_collision:1;
|
|
|
|
unsigned int insert_data_done:1;
|
|
};
|
|
};
|
|
|
|
struct keylist insert_keys;
|
|
BKEY_PADDED(replace_key);
|
|
};
|
|
|
|
unsigned int bch_get_congested(const struct cache_set *c);
|
|
CLOSURE_CALLBACK(bch_data_insert);
|
|
|
|
void bch_cached_dev_request_init(struct cached_dev *dc);
|
|
void cached_dev_submit_bio(struct bio *bio);
|
|
|
|
void bch_flash_dev_request_init(struct bcache_device *d);
|
|
void flash_dev_submit_bio(struct bio *bio);
|
|
|
|
extern struct kmem_cache *bch_search_cache;
|
|
|
|
#endif /* _BCACHE_REQUEST_H_ */
|