diff options
| author | Dimitri Sivanich <sivanich@sgi.com> | 2010-03-11 14:08:56 -0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2010-03-24 14:10:03 +0100 |
| commit | 92d6b71ab906be706f3679353b30a8d2c3831144 (patch) | |
| tree | 2b82cc7f065f947f4a6430e0de3bc63a4870907d /Documentation/filesystems/proc.txt | |
| parent | 220bf991b0366cc50a94feede3d7341fa5710ee4 (diff) | |
| download | lwn-92d6b71ab906be706f3679353b30a8d2c3831144.tar.gz lwn-92d6b71ab906be706f3679353b30a8d2c3831144.zip | |
genirq: Expose irq_desc->node in proc/irq
Expose irq_desc->node as /proc/irq/*/node.
This file provides device hardware locality information for apps
desiring to include hardware locality in irq mapping decisions.
Signed-off-by: Dimitri Sivanich <sivanich@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'Documentation/filesystems/proc.txt')
| -rw-r--r-- | Documentation/filesystems/proc.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index a4f30faa4f1f..6507d2ae5236 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -566,6 +566,10 @@ The default_smp_affinity mask applies to all non-active IRQs, which are the IRQs which have not yet been allocated/activated, and hence which lack a /proc/irq/[0-9]* directory. +The node file on an SMP system shows the node to which the device using the IRQ +reports itself as being attached. This hardware locality information does not +include information about any possible driver locality preference. + prof_cpu_mask specifies which CPUs are to be profiled by the system wide profiler. Default value is ffffffff (all cpus). |