}
EXPORT_SYMBOL_GPL(blk_steal_bios);
-#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
-/**
- * rq_flush_dcache_pages - Helper function to flush all pages in a request
- * @rq: the request to be flushed
- *
- * Description:
- * Flush all pages in @rq.
- */
-void rq_flush_dcache_pages(struct request *rq)
-{
- struct req_iterator iter;
- struct bio_vec bvec;
-
- rq_for_each_segment(bvec, rq, iter)
- flush_dcache_page(bvec.bv_page);
-}
-EXPORT_SYMBOL_GPL(rq_flush_dcache_pages);
-#endif
-
/**
* blk_lld_busy - Check if underlying low-level drivers of a device are busy
* @q : the queue of the device being checked
struct mtd_blktrans_dev *dev,
struct request *req)
{
+ struct req_iterator iter;
+ struct bio_vec bvec;
unsigned long block, nsect;
char *buf;
}
}
kunmap(bio_page(req->bio));
- rq_flush_dcache_pages(req);
+
+ rq_for_each_segment(bvec, req, iter)
+ flush_dcache_page(bvec.bv_page);
return BLK_STS_OK;
case REQ_OP_WRITE:
if (!tr->writesect)
return BLK_STS_IOERR;
- rq_flush_dcache_pages(req);
+ rq_for_each_segment(bvec, req, iter)
+ flush_dcache_page(bvec.bv_page);
+
buf = kmap(bio_page(req->bio)) + bio_offset(req->bio);
for (; nsect > 0; nsect--, block++, buf += tr->blksize) {
if (tr->writesect(dev, block, buf)) {
int ret;
struct ubiblock_pdu *pdu = container_of(work, struct ubiblock_pdu, work);
struct request *req = blk_mq_rq_from_pdu(pdu);
+ struct req_iterator iter;
+ struct bio_vec bvec;
blk_mq_start_request(req);
blk_rq_map_sg(req->q, req, pdu->usgl.sg);
ret = ubiblock_read(pdu);
- rq_flush_dcache_pages(req);
+
+ rq_for_each_segment(bvec, req, iter)
+ flush_dcache_page(bvec.bv_page);
blk_mq_end_request(req, errno_to_blk_status(ret));
}
}
#endif /* CONFIG_BLK_DEV_ZONED */
-#ifndef ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
-# error "You should define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE for your platform"
-#endif
-#if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE
-void rq_flush_dcache_pages(struct request *rq);
-#else
-static inline void rq_flush_dcache_pages(struct request *rq)
-{
-}
-#endif /* ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE */
#endif /* BLK_MQ_H */