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authorTejun Heo <tj@kernel.org>2013-05-14 13:52:37 -0700
committerTejun Heo <tj@kernel.org>2013-05-14 13:52:37 -0700
commit2a12f0dcdad1ba7c0e53bbff8e5f6d0ee7a29882 (patch)
treefd0cee6d116653a4619c941d3dc1a759edd45064 /drivers/mfd/tps65090.c
parent6e1a5704cbbd244a8db2d7d59215cf9a4c9a0d31 (diff)
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blk-throttle: make blk_throtl_drain() ready for hierarchy
The current blk_throtl_drain() assumes that all active throtl_grps are queued on throtl_data->service_queue, which won't be true once hierarchy support is implemented. This patch makes blk_throtl_drain() perform post-order walk of the blkg hierarchy draining each associated throtl_grp, which guarantees that all bios will eventually be pushed to the top-level service_queue in throtl_data. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com>
Diffstat (limited to 'drivers/mfd/tps65090.c')
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