Benjamin Herrenschmidt 8ec8f2e85c [POWERPC] Fix performance regression in IRQ radix tree locking ...

When reworking the powerpc irq code, I figured out that we were using
the radix tree in a racy way. As a temporary fix, I put a spinlock in
there. However, this can have a significant impact on performances. This
patch reworks that to use a smarter technique based on the fact that
what we need is in fact a rwlock with extremely rare writers (thus
optimized for the read path).

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

2006-08-30 10:36:16 +10:00

..

alpha

[PATCH] arch/alpha: Use ARRAY_SIZE macro

2006-07-31 13:28:38 -07:00

arm

[ARM] 3739/1: genirq updates: irq_chip, add and use irq_chip.name

2006-08-01 22:26:25 +01:00

arm26

[PATCH] tty: Remove include of screen_info.h from tty.h

2006-07-10 13:24:16 -07:00

cris

[PATCH] pcf8563: remove MOD_INC_USE_COUNT, MOD_DEC_USE_COUNT

2006-07-10 13:24:22 -07:00

frv

[PATCH] FRV: Introduce asm-offsets for FRV arch

2006-07-10 13:24:22 -07:00

h8300

[PATCH] irq-flags: H8300: Use the new IRQF_ constants

2006-07-02 13:58:47 -07:00

i386

[CPUFREQ] Propagate acpi_processor_preregister_performance return value.

2006-07-31 18:37:06 -04:00

ia64

[IA64] make uncached allocator more node aware

2006-08-04 10:27:27 -07:00

m32r

[PATCH] tty: Remove include of screen_info.h from tty.h

2006-07-10 13:24:16 -07:00

m68k

[PATCH] irq-flags: M68K: Use the new IRQF_ constants

2006-07-02 13:58:47 -07:00

m68knommu

[PATCH] irq-flags: M68KNOMMU: Use the new IRQF_ constants

2006-07-02 13:58:47 -07:00

mips

[MIPS] sparsemem: fix crash in show_mem

2006-07-13 21:26:22 +01:00

parisc

[PATCH] vDSO hash-style fix

2006-07-31 13:28:43 -07:00

powerpc

[POWERPC] Fix performance regression in IRQ radix tree locking

2006-08-30 10:36:16 +10:00

ppc

[POWERPC] back up old school ipic.[hc] to arch/ppc

2006-08-30 10:34:33 +10:00

s390

[PATCH] cpu hotplug: use hotplug version of registration in late inits

2006-07-31 13:28:39 -07:00

sh

[PATCH] sh: fix proc file removal for superh store queue module

2006-08-06 08:57:48 -07:00

sh64

[PATCH] tty: Remove include of screen_info.h from tty.h

2006-07-10 13:24:16 -07:00

sparc

[SPARC]: Defer clock_probe to fs_initcall()

2006-07-27 22:08:01 -07:00

sparc64

[SPARC64]: Explicitly print return PC when the kernel fault PC is bogus.

2006-07-24 22:33:58 -07:00

um

[PATCH] vDSO hash-style fix

2006-07-31 13:28:43 -07:00

v850

[PATCH] v850: call init_page_count() instead of set_page_count()

2006-07-31 13:28:38 -07:00

x86_64

[PATCH] Fix more per-cpu typos

2006-08-06 08:57:47 -07:00

xtensa

[PATCH] panic_on_oops: remove ssleep()

2006-07-31 13:28:39 -07:00