Kernel

[PATCH 3/5] cfq-iosched: Implement a tunable group_idle
o Implement a new tunable group_idle, which allows idling on the group instead of a cfq queue. Hence one can set slice_idle = 0 and not idle on the individual queues but idle on the group. This way on fast storage we can get fairness between groups at the same time overall throughput improves. Signed-off... 22 Jul 2010 18:01

[PATCH 4/5] cfq-iosched: Print number of sectors dispatched per cfqq slice
o Divyesh had gotten rid of this code in the past. I want to re-introduce it back as it helps me a lot during debugging. Reviewed-by: Jeff Moyer <jmoyer(a)redhat.com> Reviewed-by: Divyesh Shah <dpshah(a)google.com> Signed-off-by: Vivek Goyal <vgoyal(a)redhat.com> --- block/cfq-iosched.c | 9 +++++++-- 1 files ... 22 Jul 2010 18:01

[RFC PATCH] cfq-iosched: IOPS mode for group scheduling and new group_idle tunable
Hi, This is V4 of the patchset which implements a new tunable group_idle and also implements IOPS mode for group fairness. Following are changes since V3. - Cleaned up the code a bit to make clear that IOPS mode is effective only for group scheduling and cfqq queue scheduling should not be affected. Note ... 22 Jul 2010 18:01

[PATCH 5/5] cfq-iosched: Documentation update
o Documentation update for group_idle tunable and Group IOPS mode. --- Documentation/block/cfq-iosched.txt | 44 ++++++++++++++++++++++++++++ Documentation/cgroups/blkio-controller.txt | 28 +++++++++++++++++ 2 files changed, 72 insertions(+), 0 deletions(-) create mode 100644 Documentation/block/cfq-... 22 Jul 2010 18:01

[PATCH 2/5] cfq-iosched: Implment IOPS mode for group scheduling
o Implement another CFQ mode where we charge group in terms of number of requests dispatched instead of measuring the time. Measuring in terms of time is not possible when we are driving deeper queue depths and there are requests from multiple cfq queues in the request queue. o This mode currently gets acti... 22 Jul 2010 18:01

generic changes for memblock
On Thu, 2010-07-22 at 11:20 -0700, Yinghai Lu wrote: New memblock could be used to replace early_res in x86. Suggested by: David, Ben, and Thomas -v25: update to mainline with kmemleak fix on nobootmem also rename lmb to memblock alread in mainline -v26: according to Linus and hpa, sepe... 22 Jul 2010 19:08

vhost: replace vhost_workqueue with per-vhost kthread
Hello, On 07/22/2010 05:58 PM, Michael S. Tsirkin wrote: All the tricky barrier pairing made me uncomfortable. So I came up with this on top (untested): if we do all operations under the spinlock, we can get by without barriers and atomics. And since we need the lock for list operations anyway, this sh... 28 Jul 2010 08:32

[PATCH] ACPI: skip checking BM_STS if the BIOS doesn't ask for it
From: Len Brown <len.brown(a)intel.com> It turns out that there is a bit in the _CST for Intel FFH C3 that tells the OS if we should be checking BM_STS or not. Linux has been unconditionally checking BM_STS. If the chip-set is configured to enable BM_STS, it can retard or completely prevent entry into deep C-st... 22 Jul 2010 18:01

[PATCH 4/6] staging: tidspbridge: remove OPTIONAL
From: Menon, Nishanth <nm(a)ti.com> OPTIONAL modifier makes no sense in linux kernel Signed-off-by: Nishanth Menon <nm(a)ti.com> --- drivers/staging/tidspbridge/core/chnl_sm.c | 2 +- .../staging/tidspbridge/include/dspbridge/cod.h | 2 +- .../tidspbridge/include/dspbridge/dspchnl.h | ... 22 Jul 2010 18:01

[PATCH 1/6] staging: tidspbridge: remove GlobalTypes.h
From: Menon, Nishanth <nm(a)ti.com> Remove custom globaltypes.h header Signed-off-by: Nishanth Menon <nm(a)ti.com> --- drivers/staging/tidspbridge/hw/GlobalTypes.h | 291 -------------------------- drivers/staging/tidspbridge/hw/MMURegAcM.h | 1 - drivers/staging/tidspbridge/hw/hw_defs.h | 2 - dri... 22 Jul 2010 18:01