[PATCH] Various block throttling fixes

From: Vivek Goyal
Date: Tue Sep 28 2010 - 13:11:37 EST


Hi Jens,

During testing of block device throttling, I found few issues. Here are
the fixes for those issues.

[PATCH 1/4] blkio: Do not export throttle files if CONFIG_BLK_DEV_THROTTLING=n
[PATCH 2/4] blkio: deletion of a cgroup was causes oops
[PATCH 3/4] blkio: Add root group to td->tg_list
[PATCH 4/4] blkio: Recalculate the throttled bio dispatch time upon throttle limit change

Overall diff

block/blk-cgroup.c | 121 +++++++++++++++++++++------------------
block/blk-cgroup.h | 21 ++++---
block/blk-throttle.c | 151 ++++++++++++++++++++++++++++++++++++++++++-------
block/cfq-iosched.c | 4 +-
4 files changed, 207 insertions(+), 90 deletions(-)

Thanks
Vivek
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