From ea6f06f416347448645e60294d92c0c19aba8589 Mon Sep 17 00:00:00 2001 From: Kiyoshi Ueda Date: Tue, 11 Dec 2007 17:50:21 -0500 Subject: blk_end_request: changing cpqarray (take 4) This patch converts cpqarray to use blk_end_request interfaces. Related 'ok' arguments are converted to 'error'. cpqarray is a little bit different from "normal" drivers. cpqarray directly calls bio_endio() and disk_stat_add() when completing request. But those can be replaced with __end_that_request_first(). After the replacement, request completion procedures of those drivers become like the following: o end_that_request_first() o add_disk_randomness() o end_that_request_last() This can be converted to __blk_end_request() by following the rule (b) mentioned in the patch subject "[PATCH 01/30] blk_end_request: add new request completion interface". Cc: Mike Miller Signed-off-by: Kiyoshi Ueda Signed-off-by: Jun'ichi Nomura Signed-off-by: Jens Axboe --- drivers/block/cpqarray.c | 36 +++++++----------------------------- 1 file changed, 7 insertions(+), 29 deletions(-) diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index c8132d958795..69199185ff4b 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -167,7 +167,6 @@ static void start_io(ctlr_info_t *h); static inline void addQ(cmdlist_t **Qptr, cmdlist_t *c); static inline cmdlist_t *removeQ(cmdlist_t **Qptr, cmdlist_t *c); -static inline void complete_buffers(struct bio *bio, int ok); static inline void complete_command(cmdlist_t *cmd, int timeout); static irqreturn_t do_ida_intr(int irq, void *dev_id); @@ -980,26 +979,13 @@ static void start_io(ctlr_info_t *h) } } -static inline void complete_buffers(struct bio *bio, int ok) -{ - struct bio *xbh; - - while (bio) { - xbh = bio->bi_next; - bio->bi_next = NULL; - - bio_endio(bio, ok ? 0 : -EIO); - - bio = xbh; - } -} /* * Mark all buffers that cmd was responsible for */ static inline void complete_command(cmdlist_t *cmd, int timeout) { struct request *rq = cmd->rq; - int ok=1; + int error = 0; int i, ddir; if (cmd->req.hdr.rcode & RCODE_NONFATAL && @@ -1011,16 +997,17 @@ static inline void complete_command(cmdlist_t *cmd, int timeout) if (cmd->req.hdr.rcode & RCODE_FATAL) { printk(KERN_WARNING "Fatal error on ida/c%dd%d\n", cmd->ctlr, cmd->hdr.unit); - ok = 0; + error = -EIO; } if (cmd->req.hdr.rcode & RCODE_INVREQ) { printk(KERN_WARNING "Invalid request on ida/c%dd%d = (cmd=%x sect=%d cnt=%d sg=%d ret=%x)\n", cmd->ctlr, cmd->hdr.unit, cmd->req.hdr.cmd, cmd->req.hdr.blk, cmd->req.hdr.blk_cnt, cmd->req.hdr.sg_cnt, cmd->req.hdr.rcode); - ok = 0; + error = -EIO; } - if (timeout) ok = 0; + if (timeout) + error = -EIO; /* unmap the DMA mapping for all the scatter gather elements */ if (cmd->req.hdr.cmd == IDA_READ) ddir = PCI_DMA_FROMDEVICE; @@ -1030,18 +1017,9 @@ static inline void complete_command(cmdlist_t *cmd, int timeout) pci_unmap_page(hba[cmd->ctlr]->pci_dev, cmd->req.sg[i].addr, cmd->req.sg[i].size, ddir); - complete_buffers(rq->bio, ok); - - if (blk_fs_request(rq)) { - const int rw = rq_data_dir(rq); - - disk_stat_add(rq->rq_disk, sectors[rw], rq->nr_sectors); - } - - add_disk_randomness(rq->rq_disk); - DBGPX(printk("Done with %p\n", rq);); - end_that_request_last(rq, ok ? 1 : -EIO); + if (__blk_end_request(rq, error, blk_rq_bytes(rq))) + BUG(); } /* -- cgit v1.2.3-59-g8ed1b