19 	struct bio bio;  in sync_request()  local
22 	bio_init(&bio);  in sync_request()
23 	bio.bi_max_vecs = 1;  in sync_request()
24 	bio.bi_io_vec = &bio_vec;  in sync_request()
28 	bio.bi_vcnt = 1;  in sync_request()
29 	bio.bi_bdev = bdev;  in sync_request()
30 	bio.bi_iter.bi_sector = page->index * (PAGE_SIZE >> 9);  in sync_request()
31 	bio.bi_iter.bi_size = PAGE_SIZE;  in sync_request()
33 	return submit_bio_wait(rw, &bio);  in sync_request()
56 static void writeseg_end_io(struct bio *bio, int err)  in writeseg_end_io()  argument
58 	const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);  in writeseg_end_io()
61 	struct super_block *sb = bio->bi_private;  in writeseg_end_io()
67 	bio_for_each_segment_all(bvec, bio, i) {  in writeseg_end_io()
71 	bio_put(bio);  in writeseg_end_io()
81 	struct bio *bio;  in __bdev_writeseg()  local
88 	bio = bio_alloc(GFP_NOFS, max_pages);  in __bdev_writeseg()
89 	BUG_ON(!bio);  in __bdev_writeseg()
94 			bio->bi_vcnt = i;  in __bdev_writeseg()
95 			bio->bi_iter.bi_size = i * PAGE_SIZE;  in __bdev_writeseg()
96 			bio->bi_bdev = super->s_bdev;  in __bdev_writeseg()
97 			bio->bi_iter.bi_sector = ofs >> 9;  in __bdev_writeseg()
98 			bio->bi_private = sb;  in __bdev_writeseg()
99 			bio->bi_end_io = writeseg_end_io;  in __bdev_writeseg()
101 			submit_bio(WRITE, bio);  in __bdev_writeseg()
108 			bio = bio_alloc(GFP_NOFS, max_pages);  in __bdev_writeseg()
109 			BUG_ON(!bio);  in __bdev_writeseg()
113 		bio->bi_io_vec[i].bv_page = page;  in __bdev_writeseg()
114 		bio->bi_io_vec[i].bv_len = PAGE_SIZE;  in __bdev_writeseg()
115 		bio->bi_io_vec[i].bv_offset = 0;  in __bdev_writeseg()
121 	bio->bi_vcnt = nr_pages;  in __bdev_writeseg()
122 	bio->bi_iter.bi_size = nr_pages * PAGE_SIZE;  in __bdev_writeseg()
123 	bio->bi_bdev = super->s_bdev;  in __bdev_writeseg()
124 	bio->bi_iter.bi_sector = ofs >> 9;  in __bdev_writeseg()
125 	bio->bi_private = sb;  in __bdev_writeseg()
126 	bio->bi_end_io = writeseg_end_io;  in __bdev_writeseg()
128 	submit_bio(WRITE, bio);  in __bdev_writeseg()
156 static void erase_end_io(struct bio *bio, int err)   in erase_end_io()  argument
158 	const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);   in erase_end_io()
159 	struct super_block *sb = bio->bi_private;   in erase_end_io()
164 	BUG_ON(bio->bi_vcnt == 0);   in erase_end_io()
165 	bio_put(bio);   in erase_end_io()
174 	struct bio *bio;  in do_erase()  local
180 	bio = bio_alloc(GFP_NOFS, max_pages);  in do_erase()
181 	BUG_ON(!bio);  in do_erase()
186 			bio->bi_vcnt = i;  in do_erase()
187 			bio->bi_iter.bi_size = i * PAGE_SIZE;  in do_erase()
188 			bio->bi_bdev = super->s_bdev;  in do_erase()
189 			bio->bi_iter.bi_sector = ofs >> 9;  in do_erase()
190 			bio->bi_private = sb;  in do_erase()
191 			bio->bi_end_io = erase_end_io;  in do_erase()
193 			submit_bio(WRITE, bio);  in do_erase()
200 			bio = bio_alloc(GFP_NOFS, max_pages);  in do_erase()
201 			BUG_ON(!bio);  in do_erase()
203 		bio->bi_io_vec[i].bv_page = super->s_erase_page;  in do_erase()
204 		bio->bi_io_vec[i].bv_len = PAGE_SIZE;  in do_erase()
205 		bio->bi_io_vec[i].bv_offset = 0;  in do_erase()
207 	bio->bi_vcnt = nr_pages;  in do_erase()
208 	bio->bi_iter.bi_size = nr_pages * PAGE_SIZE;  in do_erase()
209 	bio->bi_bdev = super->s_bdev;  in do_erase()
210 	bio->bi_iter.bi_sector = ofs >> 9;  in do_erase()
211 	bio->bi_private = sb;  in do_erase()
212 	bio->bi_end_io = erase_end_io;  in do_erase()
214 	submit_bio(WRITE, bio);  in do_erase()