38 static inline bool bcache_dev_stripe_dirty(struct cached_dev *dc,  in bcache_dev_stripe_dirty()  argument
42 	unsigned int stripe = offset_to_stripe(&dc->disk, offset);  in bcache_dev_stripe_dirty()
45 		if (atomic_read(dc->disk.stripe_sectors_dirty + stripe))  in bcache_dev_stripe_dirty()
48 		if (nr_sectors <= dc->disk.stripe_size)  in bcache_dev_stripe_dirty()
51 		nr_sectors -= dc->disk.stripe_size;  in bcache_dev_stripe_dirty()
56 static inline bool should_writeback(struct cached_dev *dc, struct bio *bio,  in should_writeback()  argument
59 	unsigned int in_use = dc->disk.c->gc_stats.in_use;  in should_writeback()
62 	    test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) ||  in should_writeback()
66 	if (dc->partial_stripes_expensive &&  in should_writeback()
67 	    bcache_dev_stripe_dirty(dc, bio->bi_iter.bi_sector,  in should_writeback()
79 static inline void bch_writeback_queue(struct cached_dev *dc)  in bch_writeback_queue()  argument
81 	if (!IS_ERR_OR_NULL(dc->writeback_thread))  in bch_writeback_queue()
82 		wake_up_process(dc->writeback_thread);  in bch_writeback_queue()
85 static inline void bch_writeback_add(struct cached_dev *dc)  in bch_writeback_add()  argument
87 	if (!atomic_read(&dc->has_dirty) &&  in bch_writeback_add()
88 	    !atomic_xchg(&dc->has_dirty, 1)) {  in bch_writeback_add()
89 		if (BDEV_STATE(&dc->sb) != BDEV_STATE_DIRTY) {  in bch_writeback_add()
90 			SET_BDEV_STATE(&dc->sb, BDEV_STATE_DIRTY);  in bch_writeback_add()
92 			bch_write_bdev_super(dc, NULL);  in bch_writeback_add()
95 		bch_writeback_queue(dc);  in bch_writeback_add()
103 void bch_cached_dev_writeback_init(struct cached_dev *dc);
104 int bch_cached_dev_writeback_start(struct cached_dev *dc);