[PATCH] documentation: Make sample code and documentation consistent

In the chapter 'analogy with reader-writer locking', the sample code uses spinlock_t in reader-writer case. Just correct it so that we can read the document easily. Signed-off-by: Yao Dongdong --- Documentation/RCU/whatisRCU.txt | 22 +++--- 1 file changed, 15 insert

[PATCH] rcu: Remove reduplicate check of cpu_online

The calling function invoke_rcu_core will check it. Signed-off-by: Yao Dongdong --- kernel/rcu/tree.c |2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 48d640c..e5f9b7e 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c

[tip:sched/core] sched/core: Remove check of p->sched_class

Commit-ID: 1b537c7d1e58c761212a193085f9049b58f672e6 Gitweb: http://git.kernel.org/tip/1b537c7d1e58c761212a193085f9049b58f672e6 Author: Yao Dongdong AuthorDate: Mon, 29 Dec 2014 14:41:43 +0800 Committer: Ingo Molnar CommitDate: Wed, 14 Jan 2015 13:34:17 +0100 sched/core: Remove check

[PATCH] sched/core: remove check of p->sched_class

Search all usage of p->sched_class in sched/core.c, no one check it before use, so it seems that every task must belong to one sched_class. Signed-off-by: Yao Dongdong --- kernel/sched/core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sc

[PATCH] selinux: Remove security_ops extern

security_ops is not used in this file. Signed-off-by: Yao Dongdong --- security/selinux/hooks.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index c603b20..6da7532 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c

[PATCH] sched, cleanup, dm bufio: Replace dm_bufio_cond_resched with might_resched

The judge of need_resched() before _cond_resched() in dm_bufio_cond_resched() is no need. Because _cond_resched() itself judges should_resched() which means need and can resched. In addition, might_resched() can do all these. Signed-off-by: Yao Dongdong --- drivers/md/dm-bufio.c | 35

[tip:sched/core] sched: Check if we got a shallowest_idle_cpu before searching for least_loaded_cpu

Commit-ID: 9f96742a13135e6c609cc99a3a458402af3c8f31 Gitweb: http://git.kernel.org/tip/9f96742a13135e6c609cc99a3a458402af3c8f31 Author: Yao Dongdong AuthorDate: Tue, 28 Oct 2014 04:08:06 + Committer: Ingo Molnar CommitDate: Tue, 4 Nov 2014 07:17:51 +0100 sched: Check if we got a

Re: [PATCH 1/2] Thermal:Fix memory leak if occur goto unregister

alentin >>> Sent: Monday, October 20, 2014 6:04 PM >>> To: Yao Dongdong >>> Cc: Zhang, Rui; linux...@vger.kernel.org; LKML >>> Subject: Re: [PATCH 1/2] Thermal:Fix memory leak if occur goto unregister >>> >>> Hello, >>> >>> On Mon,

Re: [PATCH 1/2 resend] Thermal:Fix memory leak if occur goto unregister

Hello Eduardo, I'm sorry for that my patches listed below have format problems, so i resend them. https://lkml.org/lkml/2014/10/20/85 https://lkml.org/lkml/2014/10/20/84 Thanks, Yao Dongdong -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body

[PATCH 1/2 resend] Thermal:Fix memory leak if occur goto unregister

Signed-off-by: Yao Dongdong Acked-by: Eduardo Valentin --- drivers/thermal/thermal_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 9bf10aa..d358605 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal

[PATCH 2/2 resend] Thermal:Remove usless if(!result) before return tz

result is always zero when comes here. Signed-off-by: Yao Dongdong Acked-by: Eduardo Valentin --- drivers/thermal/thermal_core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index d358605..a438c95 100644

[PATCH resend] sched:check if got a shallowest_idle_cpu before search for least_loaded_cpu

Idle cpu is idler than non-idle cpu, so we needn't search for least_loaded_cpu after we have found an idle cpu. Signed-off-by: Yao Dongdong Reviewed-by: Srikar Dronamraju --- kernel/sched/fair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/k

Re: [PATCH v2]sched:add check of shallowest_idle_cpu before search for least_loaded_cpu

lse if (shallowest_idle_cpu == -1) {$ > > WARNING: please, no spaces at the start of a line > #25: FILE: kernel/sched/fair.c:4644: > + } else if (shallowest_idle_cpu == -1) {$ > > total: 1 errors, 2 warnings, 8 lines checked > > NOTE: whitespace errors detected, you

[PATCH v2]sched:add check of shallowest_idle_cpu before search for least_loaded_cpu

Idle cpu is idler than non-idle cpu, so we needn't search for least_loaded_cpu after we have found an idle cpu. Signed-off-by:yaodongd...@huawei.com Reviewed-by: Srikar Dronamraju --- kernel/sched/fair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/k

Re: [PATCH] sched:skip loop non-idle cpus after find an idle cpu while find_idlest_cpu

On 2014/10/27 16:04, Srikar Dronamraju wrote: > * Yao Dongdong [2014-10-27 11:13:17]: > >> Idle cpu is idler than non-idle cpu, so we needn't loop non-idle cpus after >> find an idle cpu. >> > While this check looks good, > I dont see how we are avoiding a l

[PATCH] sched:skip loop non-idle cpus after find an idle cpu while find_idlest_cpu

Idle cpu is idler than non-idle cpu, so we needn't loop non-idle cpus after find an idle cpu. Signed-off-by:yaodongd...@huawei.com --- kernel/sched/fair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 0b069bf..2445a23 100644

Re: [PATCH 2/2] Thermal:Remove usless if(!result) before return tz

On 2014/10/20 20:10, Eduardo Valentin wrote: > Hello Yao > > On Mon, Oct 20, 2014 at 04:27:59PM +0800, Yao Dongdong wrote: >> result is always zero when comes here. >> >> Signed-off-by:yaodongd...@huawei.com >> >> --- >> drivers/thermal/thermal_c

[PATCH 1/2] Thermal:Fix memory leak if occur goto unregister

Signed-off-by:yaodongd...@huawei.com --- drivers/thermal/thermal_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 71b0ec0..5b7d466 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1

[PATCH 2/2] Thermal:Remove usless if(!result) before return tz

result is always zero when comes here. Signed-off-by:yaodongd...@huawei.com --- drivers/thermal/thermal_core.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 5b7d466..19cac8e 100644 --- a/drivers/thermal

Re: [PATCH v2 2/2] sched/fair: leverage the idle state info when choosing the "idlest" cpu

On 2014/9/4 23:32, Nicolas Pitre wrote: > The code in find_idlest_cpu() looks for the CPU with the smallest load. > However, if multiple CPUs are idle, the first idle CPU is selected > irrespective of the depth of its idle state. > > Among the idle CPUs we should pick the one with with the shallowe

Re: [PATCH] Documentation/memory-barriers.txt: match table to its comment followed

ue, Sep 16, 2014 at 4:51 PM, Yao Dongdong wrote: >> The table shows CPU2's sequence of events as "x = B; y = A;", but its >> comment followed >> described as "x = A; y = B;". >> >> Signed-off-by: Yao Dongdong >> --- >> Documentation/

[PATCH] Documentation/memory-barriers.txt: match table to its comment followed

The table shows CPU2's sequence of events as "x = B; y = A;", but its comment followed described as "x = A; y = B;". Signed-off-by: Yao Dongdong --- Documentation/memory-barriers.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentati