Kernel

[PATCH 2/7] trace: Reorder struct ring_buffer_per_cpu to remove padding on 64bit
From: Richard Kennedy <richard(a)rsk.demon.co.uk> Reorder structure to remove 8 bytes of padding on 64 bit builds. This shrinks the size to 128 bytes so allowing allocation from a smaller slab & needed one fewer cache lines. Signed-off-by: Richard Kennedy <richard(a)rsk.demon.co.uk> LKML-Reference: <1269516456.205... 22 Jul 2010 16:55

[PATCH 3/7] tracing: Reduce latency and remove percpu trace_seq
From: Lai Jiangshan <laijs(a)cn.fujitsu.com> __print_flags() and __print_symbolic() use percpu trace_seq: 1) Its memory is allocated at compile time, it wastes memory if we don't use tracing. 2) It is percpu data and it wastes more memory for multi-cpus system. 3) It disables preemption when it executes its core ... 22 Jul 2010 16:55

[PATCH 5/7] tracing/documentation: Document dynamic ftracer internals
From: Mike Frysinger <vapier(a)gentoo.org> Add more details to the dynamic function tracing design implementation. Signed-off-by: Mike Frysinger <vapier(a)gentoo.org> LKML-Reference: <1279610015-10250-1-git-send-email-vapier(a)gentoo.org> Signed-off-by: Steven Rostedt <rostedt(a)goodmis.org> --- Documentation/trace/... 22 Jul 2010 16:55

[PATCH 1/7] tracing: Allow to disable cmdline recording
From: Li Zefan <lizf(a)cn.fujitsu.com> We found that even enabling a single trace event that will rarely be triggered can add big overhead to context switch. (lmbench context switch test) ------------------------------------------------- 2p/0K 2p/16K 2p/64K 8p/16K 8p/64K 16p/16K 16p/64K ctxsw ctxsw ctxsw c... 22 Jul 2010 16:55

[PATCH 6/7] tracing: Fix $mcount_regex for MIPS in recordmcount.pl
From: David Daney <ddaney(a)caviumnetworks.com> I found this issue in a locally patched 2.6.32.x, current kernels have moved the offending code to an __init function which is skipped by recordmcount.pl, so the bug is not currently being exercised. However, I think the patch is still a good idea, to avoid future pr... 22 Jul 2010 16:55

[PATCH 4/7] tracing: Shrink max latency ringbuffer if unnecessary
From: KOSAKI Motohiro <kosaki.motohiro(a)jp.fujitsu.com> Documentation/trace/ftrace.txt says buffer_size_kb: This sets or displays the number of kilobytes each CPU buffer can hold. The tracer buffers are the same size for each CPU. The displayed number is the size of the CPU ... 22 Jul 2010 16:55

[PATCH 2/2] Staging: dt3155: Fixed all printk warnings found by checkpatch.pl
>From 8f5fff4e75aec2d77575c2ca2dd6a166ac473b18 Mon Sep 17 00:00:00 2001 From: Joe Eloff <kagen101(a)gmail.com> Date: Thu, 22 Jul 2010 20:42:04 +0200 Subject: [PATCH 2/2] Staging: dt3155: Fixed all printk warnings found by checkpatch.pl Added all KERN_ levels in printk found by checkpatch.pl Signed-off-by: Joe Elof... 22 Jul 2010 16:55

trace-cmd: Don't SIGSEGV when event field format cannot be parsed.
On Tue, 2010-07-13 at 11:44 -0700, David Daney wrote: From the MIPS kernel we get things like: print fmt: "page=%p pfn=%lu order=%d migratetype=%d", REC->page, ({ struct page *__pg = (REC->page); int __sec = page_to_section(__pg); (unsigned long)(__pg - __section_mem_map_addr(__nr_to_section(__sec))); }), RE... 22 Jul 2010 16:55

trace: funcgraph tracer - adding funcgraph-irq option
On Mon, 2010-07-12 at 18:21 +0200, Jiri Olsa wrote: +/* + * Entry check for irq code + * + * returns 1 if + * - we are inside irq code + * - we just extered irq code + * + * retunns 0 if + * - funcgraph-interrupts option is set + * - we are not inside irq code + */ +static int ... 22 Jul 2010 16:55

drivers:staging:ti-st: patches
On Thu, 22 Jul 2010 05:32:04 -0500 pavan_savoy(a)ti.com wrote: From: Pavan Savoy <pavan_savoy(a)ti.com> The following patches cleanup bit of a mess and also adds functionality to protocol drivers. with the 3rd patch now providing context to even the protocol drivers, the single device limit or support for... 26 Jul 2010 01:56