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)  in writeseg_end_io()  argument
60 	struct super_block *sb = bio->bi_private;  in writeseg_end_io()
63 	BUG_ON(bio->bi_error); /* FIXME: Retry io or write elsewhere */  in writeseg_end_io()
65 	bio_for_each_segment_all(bvec, bio, i) {  in writeseg_end_io()
69 	bio_put(bio);  in writeseg_end_io()
79 	struct bio *bio;  in __bdev_writeseg()  local
86 	bio = bio_alloc(GFP_NOFS, max_pages);  in __bdev_writeseg()
87 	BUG_ON(!bio);  in __bdev_writeseg()
92 			bio->bi_vcnt = i;  in __bdev_writeseg()
93 			bio->bi_iter.bi_size = i * PAGE_SIZE;  in __bdev_writeseg()
94 			bio->bi_bdev = super->s_bdev;  in __bdev_writeseg()
95 			bio->bi_iter.bi_sector = ofs >> 9;  in __bdev_writeseg()
96 			bio->bi_private = sb;  in __bdev_writeseg()
97 			bio->bi_end_io = writeseg_end_io;  in __bdev_writeseg()
99 			submit_bio(WRITE, bio);  in __bdev_writeseg()
106 			bio = bio_alloc(GFP_NOFS, max_pages);  in __bdev_writeseg()
107 			BUG_ON(!bio);  in __bdev_writeseg()
111 		bio->bi_io_vec[i].bv_page = page;  in __bdev_writeseg()
112 		bio->bi_io_vec[i].bv_len = PAGE_SIZE;  in __bdev_writeseg()
113 		bio->bi_io_vec[i].bv_offset = 0;  in __bdev_writeseg()
119 	bio->bi_vcnt = nr_pages;  in __bdev_writeseg()
120 	bio->bi_iter.bi_size = nr_pages * PAGE_SIZE;  in __bdev_writeseg()
121 	bio->bi_bdev = super->s_bdev;  in __bdev_writeseg()
122 	bio->bi_iter.bi_sector = ofs >> 9;  in __bdev_writeseg()
123 	bio->bi_private = sb;  in __bdev_writeseg()
124 	bio->bi_end_io = writeseg_end_io;  in __bdev_writeseg()
126 	submit_bio(WRITE, bio);  in __bdev_writeseg()
154 static void erase_end_io(struct bio *bio)  in erase_end_io()  argument
156 	struct super_block *sb = bio->bi_private;   in erase_end_io()
159 	BUG_ON(bio->bi_error); /* FIXME: Retry io or write elsewhere */   in erase_end_io()
160 	BUG_ON(bio->bi_vcnt == 0);   in erase_end_io()
161 	bio_put(bio);   in erase_end_io()
170 	struct bio *bio;  in do_erase()  local
176 	bio = bio_alloc(GFP_NOFS, max_pages);  in do_erase()
177 	BUG_ON(!bio);  in do_erase()
182 			bio->bi_vcnt = i;  in do_erase()
183 			bio->bi_iter.bi_size = i * PAGE_SIZE;  in do_erase()
184 			bio->bi_bdev = super->s_bdev;  in do_erase()
185 			bio->bi_iter.bi_sector = ofs >> 9;  in do_erase()
186 			bio->bi_private = sb;  in do_erase()
187 			bio->bi_end_io = erase_end_io;  in do_erase()
189 			submit_bio(WRITE, bio);  in do_erase()
196 			bio = bio_alloc(GFP_NOFS, max_pages);  in do_erase()
197 			BUG_ON(!bio);  in do_erase()
199 		bio->bi_io_vec[i].bv_page = super->s_erase_page;  in do_erase()
200 		bio->bi_io_vec[i].bv_len = PAGE_SIZE;  in do_erase()
201 		bio->bi_io_vec[i].bv_offset = 0;  in do_erase()
203 	bio->bi_vcnt = nr_pages;  in do_erase()
204 	bio->bi_iter.bi_size = nr_pages * PAGE_SIZE;  in do_erase()
205 	bio->bi_bdev = super->s_bdev;  in do_erase()
206 	bio->bi_iter.bi_sector = ofs >> 9;  in do_erase()
207 	bio->bi_private = sb;  in do_erase()
208 	bio->bi_end_io = erase_end_io;  in do_erase()
210 	submit_bio(WRITE, bio);  in do_erase()