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authorTejun Heo <tj@kernel.org>2009-04-23 11:05:19 +0900
committerJens Axboe <jens.axboe@oracle.com>2009-04-28 07:37:35 +0200
commit40cbbb781d3eba5d6ac0860db078af490e5c7c6b (patch)
treedec374543cf045fc630bccddbb7646c695094b0d /arch
parentb243ddcbe9be146172baa544dadecebf156eda0e (diff)
block: implement and use [__]blk_end_request_all()
There are many [__]blk_end_request() call sites which call it with full request length and expect full completion. Many of them ensure that the request actually completes by doing BUG_ON() the return value, which is awkward and error-prone. This patch adds [__]blk_end_request_all() which takes @rq and @error and fully completes the request. BUG_ON() is added to to ensure that this actually happens. Most conversions are simple but there are a few noteworthy ones. * cdrom/viocd: viocd_end_request() replaced with direct calls to __blk_end_request_all(). * s390/block/dasd: dasd_end_request() replaced with direct calls to __blk_end_request_all(). * s390/char/tape_block: tapeblock_end_request() replaced with direct calls to blk_end_request_all(). [ Impact: cleanup ] Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Mike Miller <mike.miller@hp.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Jeff Garzik <jgarzik@pobox.com> Cc: Rusty Russell <rusty@rustcorp.com.au> Cc: Jeremy Fitzhardinge <jeremy@xensource.com> Cc: Alex Dubov <oakad@yahoo.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/plat-omap/mailbox.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/arch/arm/plat-omap/mailbox.c b/arch/arm/plat-omap/mailbox.c
index 0abfbaa5987..cf81bad8aec 100644
--- a/arch/arm/plat-omap/mailbox.c
+++ b/arch/arm/plat-omap/mailbox.c
@@ -192,8 +192,7 @@ static void mbox_tx_work(struct work_struct *work)
}
spin_lock(q->queue_lock);
- if (__blk_end_request(rq, 0, 0))
- BUG();
+ __blk_end_request_all(rq, 0);
spin_unlock(q->queue_lock);
}
}
@@ -224,10 +223,7 @@ static void mbox_rx_work(struct work_struct *work)
break;
msg = (mbox_msg_t) rq->data;
-
- if (blk_end_request(rq, 0, 0))
- BUG();
-
+ blk_end_request_all(rq, 0);
mbox->rxq->callback((void *)msg);
}
}
@@ -337,8 +333,7 @@ omap_mbox_read(struct device *dev, struct device_attribute *attr, char *buf)
*p = (mbox_msg_t) rq->data;
- if (blk_end_request(rq, 0, 0))
- BUG();
+ blk_end_request_all(rq, 0);
if (unlikely(mbox_seq_test(mbox, *p))) {
pr_info("mbox: Illegal seq bit!(%08x) ignored\n", *p);