Kernel

jump label v4 - x86: Introduce generic jump patching without stop_machine
* Masami Hiramatsu (mhiramat(a)redhat.com) wrote: Mathieu Desnoyers wrote: It is *not* necessary to wait for the breakpoint handlers to return, as long as they will get to IRET eventually, since IRET is a jump and a serializing instruction. Ah, I see. So the added smp_mb() would not be nee... 13 Apr 2010 13:56

ipc semaphores: reduce ipc_lock contention in semtimedop
Hi Chris, On 04/12/2010 08:49 PM, Chris Mason wrote: /* + * when a semaphore is modified, we want to retry the series of operations + * for anyone that was blocking on that semaphore. This breaks down into + * a few different common operations: + * + * 1) One modification releases one or more ... 16 Apr 2010 08:21

[PATCH -next] eeepc-wmi: depends on INPUT_SPARSEKMAP
From: Randy Dunlap <randy.dunlap(a)oracle.com> When EEEPC_WMI=y and INPUT_SPARSEKMAP=m, the build fails, so make EEEPC_WMI depend on INPUT_SPARSEKMAP. eeepc-wmi.c:(.text+0x28d1a9): undefined reference to `sparse_keymap_setup' eeepc-wmi.c:(.text+0x28d1f9): undefined reference to `sparse_keymap_free' eeepc-wmi.c:(... 13 Apr 2010 13:56

mxc: Update GPIO for USB support on Freescale MX51 Babbage HW
On Tue, Apr 13, 2010 at 11:10:25AM -0500, Dinh.Nguyen(a)freescale.com wrote: This patch is part of enabling USB for Freescale MX51 Babbage HW. This patch updates the iomux pins for USB, and gpio line for reset the USB hub on the MX51 Babbage HW. This patch applies to 2.6.34-rc4. Signed-off-by: Dinh... 13 Apr 2010 13:56

Add comment in alloc_pages_exact_node
On Wed, Apr 14, 2010 at 12:25:03AM +0900, Minchan Kim wrote: alloc_pages_exact_node naming makes some people misleading. They considered it following as. "This function will allocate pages from node which I wanted exactly". But it can allocate pages from fallback list if page allocator can't find free... 13 Apr 2010 12:49

[PATCH 2.6.34-rc4 3/8] mxc: Add platform specific USB functions for Freescale MX51 HW
From: Dinh Nguyen <Dinh.Nguyen(a)freescale.com> This patch is part of enabling USB for Freescale MX51 Babbage HW. This patch performs some platform specific USB HW initialization, and adds the necessary defines. This patch applies to 2.6.34-rc4. Signed-off-by: Dinh Nguyen <Dinh.Nguyen(a)freescale.com> --- arc... 13 Apr 2010 12:49

Add sysfs support for fbdefio delay
Jaya Kumar wrote: On Tue, Mar 2, 2010 at 11:36 PM, Rick L. Vinyard, Jr. <rvinyard(a)cs.nmsu.edu> wrote: Jaya Kumar wrote: On Tue, Mar 2, 2010 at 12:10 AM, Rick L. Vinyard, Jr. <rvinyard(a)cs.nmsu.edu> wrote: Jaya Kumar wrote: Being concerned about CPU utilization is a good thing. B... 13 Apr 2010 12:49

change alloc function in vmemmap_alloc_block
On Wed, Apr 14, 2010 at 12:25:01AM +0900, Minchan Kim wrote: if node_state is N_HIGH_MEMORY, node doesn't have -1. Also, if node_state is called with -1, a negative index is being checked in a bitmap and that would be pretty broken in itself. I can't see a problem with this patch. Reviewed-by: Mel Gorman <me... 13 Apr 2010 20:42

[PATCH]: x86: remove extra bootmem.h from arch/x86/mm/init_64.c
[Resubmitting to wider audience...] bootmem.h is already included in init_64.c. Remove the second include. Signed-off-by: Prarit Bhargava <prarit(a)redhat.com> diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index ee41bba..a9474fc 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ ... 13 Apr 2010 12:49

change alloc function in pcpu_alloc_pages
On Wed, Apr 14, 2010 at 12:24:59AM +0900, Minchan Kim wrote: alloc_pages_node is called with cpu_to_node(cpu). I think cpu_to_node(cpu) never returns -1. (But I am not sure we need double check.) So we can use alloc_pages_exact_node instead of alloc_pages_node. It could avoid comparison and branch as... 23 Apr 2010 21:14