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authorDominik Brodowski <linux@dominikbrodowski.net>2006-06-24 19:37:00 -0400
committerLen Brown <len.brown@intel.com>2006-06-28 03:14:50 -0400
commitc4a001b1ea32e09f7556178249b8885418858b5c (patch)
tree29abe5b8088968cdc28de3bd6888d05366f2478a /kernel/dma.c
parentc5ab81ca01ad4a8870b456f93dd2fb3d815f91d9 (diff)
downloadlinux-c4a001b1ea32e09f7556178249b8885418858b5c.tar.bz2
ACPI: C-States: only demote on current bus mastering activity
Only if bus master activity is going on at the present, we should avoid entering C3-type sleep, as it might be a faulty transition. As long as the bm_activity bitmask was based on the number of calls to the ACPI idle function, looking at previous moments made sense. Now, with it being based on what happened this jiffy, looking at this jiffy should be sufficient. Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'kernel/dma.c')
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