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authorJens Axboe <jens.axboe@oracle.com>2009-08-05 09:07:21 +0200
committerJens Axboe <jens.axboe@oracle.com>2009-09-11 14:33:31 +0200
commit5e605b64a183a6c0e84cdb99a6f8acb1f8200437 (patch)
tree1133a343bea602cb1bd8ee744c5997ce42a69b54 /block/Makefile
parentfb1e75389bd06fd5987e9cda1b4e0305c782f854 (diff)
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block: add blk-iopoll, a NAPI like approach for block devices
This borrows some code from NAPI and implements a polled completion mode for block devices. The idea is the same as NAPI - instead of doing the command completion when the irq occurs, schedule a dedicated softirq in the hopes that we will complete more IO when the iopoll handler is invoked. Devices have a budget of commands assigned, and will stay in polled mode as long as they continue to consume their budget from the iopoll softirq handler. If they do not, the device is set back to interrupt completion mode. This patch holds the core bits for blk-iopoll, device driver support sold separately. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/Makefile')
-rw-r--r--block/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/block/Makefile b/block/Makefile
index 6c54ed0ff75..ba74ca6bfa1 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -5,7 +5,7 @@
obj-$(CONFIG_BLOCK) := elevator.o blk-core.o blk-tag.o blk-sysfs.o \
blk-barrier.o blk-settings.o blk-ioc.o blk-map.o \
blk-exec.o blk-merge.o blk-softirq.o blk-timeout.o \
- ioctl.o genhd.o scsi_ioctl.o
+ blk-iopoll.o ioctl.o genhd.o scsi_ioctl.o
obj-$(CONFIG_BLK_DEV_BSG) += bsg.o
obj-$(CONFIG_IOSCHED_NOOP) += noop-iosched.o