From 5705f7021748a69d84d6567e68e8851dab551464 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 25 Sep 2007 12:35:59 +0200 Subject: Introduce rq_for_each_segment replacing rq_for_each_bio Every usage of rq_for_each_bio wraps a usage of bio_for_each_segment, so these can be combined into rq_for_each_segment. We define "struct req_iterator" to hold the 'bio' and 'index' that are needed for the double iteration. Signed-off-by: Neil Brown Various compile fixes by me... Signed-off-by: Jens Axboe --- drivers/block/ps3disk.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) (limited to 'drivers/block/ps3disk.c') diff --git a/drivers/block/ps3disk.c b/drivers/block/ps3disk.c index aa8b890c80d7..8953e7ce0016 100644 --- a/drivers/block/ps3disk.c +++ b/drivers/block/ps3disk.c @@ -91,30 +91,30 @@ static void ps3disk_scatter_gather(struct ps3_storage_device *dev, struct request *req, int gather) { unsigned int offset = 0; - struct bio *bio; - sector_t sector; + struct req_iterator iter; struct bio_vec *bvec; - unsigned int i = 0, j; + unsigned int i = 0; size_t size; void *buf; - rq_for_each_bio(bio, req) { - sector = bio->bi_sector; + rq_for_each_segment(bvec, req, iter) { + unsigned long flags; dev_dbg(&dev->sbd.core, "%s:%u: bio %u: %u segs %u sectors from %lu\n", - __func__, __LINE__, i, bio_segments(bio), - bio_sectors(bio), sector); - bio_for_each_segment(bvec, bio, j) { + __func__, __LINE__, i, bio_segments(iter.bio), + bio_sectors(iter.bio), + (unsigned long)iter.bio->bi_sector); + size = bvec->bv_len; - buf = __bio_kmap_atomic(bio, j, KM_IRQ0); + buf = bvec_kmap_irq(bvec, &flags); if (gather) memcpy(dev->bounce_buf+offset, buf, size); else memcpy(buf, dev->bounce_buf+offset, size); offset += size; - flush_kernel_dcache_page(bio_iovec_idx(bio, j)->bv_page); - __bio_kunmap_atomic(bio, KM_IRQ0); - } + flush_kernel_dcache_page(bvec->bv_page); + bvec_kunmap_irq(bvec, &flags); + i++; } } @@ -130,12 +130,13 @@ static int ps3disk_submit_request_sg(struct ps3_storage_device *dev, #ifdef DEBUG unsigned int n = 0; - struct bio *bio; + struct bio_vec *bv; + struct req_iterator iter; - rq_for_each_bio(bio, req) + rq_for_each_segment(bv, req, iter) n++; dev_dbg(&dev->sbd.core, - "%s:%u: %s req has %u bios for %lu sectors %lu hard sectors\n", + "%s:%u: %s req has %u bvecs for %lu sectors %lu hard sectors\n", __func__, __LINE__, op, n, req->nr_sectors, req->hard_nr_sectors); #endif -- cgit v1.2.3