user/sven/linux.git/kernel/padata.c, branch v3.12.27

padata - Register hotcpu notifier after initialization

2013-08-29T04:37:59Z

padata_cpu_callback() takes pinst->lock, to avoid taking an uninitialized lock, register the notifier after it's initialization. Signed-off-by: Richard Weinberger Acked-by: Steffen Klassert Signed-off-by: Herbert Xu

padata - share code between CPU_ONLINE and CPU_DOWN_FAILED, same to CPU_DOWN_PREPARE and CPU_UP_CANCELED

2013-08-29T04:37:59Z

Share code between CPU_ONLINE and CPU_DOWN_FAILED, same to CPU_DOWN_PREPARE and CPU_UP_CANCELED. It will fix 2 bugs: "not check the return value of __padata_remove_cpu() and __padata_add_cpu()". "need add 'break' between CPU_UP_CANCELED and CPU_DOWN_FAILED". Signed-off-by: Chen Gang Acked-by: Steffen Klassert Signed-off-by: Herbert Xu

padata: use __this_cpu_read per-cpu helper

2012-12-06T09:16:23Z

For bottom halves off, __this_cpu_read is better. Signed-off-by: Shan Wei Reviewed-by: Christoph Lameter Acked-by: Steffen Klassert Signed-off-by: Herbert Xu

padata: Fix cpu hotplug

2012-03-29T11:52:46Z

We don't remove the cpu that went offline from our cpumasks on cpu hotplug. This got lost somewhere along the line, so restore it. This fixes a hang of the padata instance on cpu hotplug. Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu

padata: Use the online cpumask as the default

2012-03-29T11:52:46Z

We use the active cpumask to determine the superset of cpus to use for parallelization. However, the active cpumask is for internal usage of the scheduler and therefore not the appropriate cpumask for these purposes. So use the online cpumask instead. Reported-by: Peter Zijlstra Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu

padata: Add a reference to the api documentation

2012-03-29T11:52:45Z

Add a reference to the padata api documentation at Documentation/padata.txt Suggested-by: Peter Zijlstra Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu

padata: Fix race on sequence number wrap

2012-03-14T09:25:56Z

When padata_do_parallel() is called from multiple cpus for the same padata instance, we can get object reordering on sequence number wrap because testing for sequence number wrap and reseting the sequence number must happen atomically but is implemented with two atomic operations. This patch fixes this by converting the sequence number from atomic_t to an unsigned int and protect the access with a spin_lock. As a side effect, we get rid of the sequence number wrap handling because the seqence number wraps back to null now without the need to do anything. Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu

padata: Fix race in the serialization path

2012-03-14T09:25:56Z

When a padata object is queued to the serialization queue, another cpu might process and free the padata object. So don't dereference it after queueing to the serialization queue. Signed-off-by: Steffen Klassert Signed-off-by: Herbert Xu

kernel: Map most files to use export.h instead of module.h

2011-10-31T13:20:12Z

The changed files were only including linux/module.h for the EXPORT_SYMBOL infrastructure, and nothing else. Revector them onto the isolated export header for faster compile times. Nothing to see here but a whole lot of instances of: -#include +#include This commit is only changing the kernel dir; next targets will probably be mm, fs, the arch dirs, etc. Signed-off-by: Paul Gortmaker

Fix common misspellings

2011-03-31T14:26:23Z

Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi