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blkio: Some debugging aids for CFQ

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o Some debugging aids for CFQ.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Vivek Goyal
2009-12-03 12:59:48 -05:00
committed by Jens Axboe
parent b1c3576961
commit 2868ef7b39
5 changed files with 53 additions and 1 deletions
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9
block/Kconfig.iosched
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@@ -40,6 +40,15 @@ config CFQ_GROUP_IOSCHED
---help---
Enable group IO scheduling in CFQ.
config DEBUG_CFQ_IOSCHED
bool "Debug CFQ Scheduling"
depends on CFQ_GROUP_IOSCHED
select DEBUG_BLK_CGROUP
default n
---help---
Enable CFQ IO scheduling debugging in CFQ. Currently it makes
blktrace output more verbose.
choice
prompt "Default I/O scheduler"
default DEFAULT_CFQ