lkml.org 
[lkml]   [2007]   [Feb]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 06/14] x86_64 irq: Simplfiy the set_affinity logic.
Date

For some reason the code has been picking TARGET_CPUS when asked to
set the affinity to an empty set of cpus. That is just silly it's
extra work. Instead if there are no cpus to set the affinity to we
should just give up immediately. That is simpler and a little more
intuitive.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
---
arch/x86_64/kernel/io_apic.c | 12 +++---------
1 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index e064838..74671de 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -244,9 +244,7 @@ static void set_ioapic_affinity_irq(unsigned int irq, cpumask_t mask)

cpus_and(tmp, mask, cpu_online_map);
if (cpus_empty(tmp))
- tmp = TARGET_CPUS;
-
- cpus_and(mask, tmp, CPU_MASK_ALL);
+ return;

vector = assign_irq_vector(irq, mask, &tmp);
if (vector < 0)
@@ -1890,9 +1888,7 @@ static void set_msi_irq_affinity(unsigned int irq, cpumask_t mask)

cpus_and(tmp, mask, cpu_online_map);
if (cpus_empty(tmp))
- tmp = TARGET_CPUS;
-
- cpus_and(mask, tmp, CPU_MASK_ALL);
+ return;

vector = assign_irq_vector(irq, mask, &tmp);
if (vector < 0)
@@ -1985,9 +1981,7 @@ static void set_ht_irq_affinity(unsigned int irq, cpumask_t mask)

cpus_and(tmp, mask, cpu_online_map);
if (cpus_empty(tmp))
- tmp = TARGET_CPUS;
-
- cpus_and(mask, tmp, CPU_MASK_ALL);
+ return;

vector = assign_irq_vector(irq, mask, &tmp);
if (vector < 0)
--
1.5.0.g53756
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-02-23 12:25    [W:0.077 / U:0.400 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site