From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: linux-kernel@vger.kernel.org, Linus Torvalds <torvalds@osdl.org>,
Andrew Morton <akpm@osdl.org>, Ingo Molnar <mingo@redhat.com>,
Greg Kroah-Hartman <gregkh@suse.de>,
Christoph Hellwig <hch@infradead.org>,
ltt-dev@shafik.org, systemtap@sources.redhat.com,
Douglas Niehaus <niehaus@eecs.ku.edu>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 05/05] Linux Kernel Markers, non optimised architectures
Date: Fri, 12 Jan 2007 15:39:20 +1100 [thread overview]
Message-ID: <45A710F8.7000405@yahoo.com.au> (raw)
In-Reply-To: <11685601404005-git-send-email-mathieu.desnoyers@polymtl.ca>
Mathieu Desnoyers wrote:
> +#define MARK(name, format, args...) \
> + do { \
> + static marker_probe_func *__mark_call_##name = \
> + __mark_empty_function; \
> + volatile static char __marker_enable_##name = 0; \
> + static const struct __mark_marker_c __mark_c_##name \
> + __attribute__((section(".markers.c"))) = \
> + { #name, &__mark_call_##name, format } ; \
> + static const struct __mark_marker __mark_##name \
> + __attribute__((section(".markers"))) = \
> + { &__mark_c_##name, &__marker_enable_##name } ; \
> + asm volatile ( "" : : "i" (&__mark_##name)); \
> + __mark_check_format(format, ## args); \
> + if (unlikely(__marker_enable_##name)) { \
> + preempt_disable(); \
> + (*__mark_call_##name)(format, ## args); \
> + preempt_enable_no_resched(); \
Why not just preempt_enable() here?
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
next prev parent reply other threads:[~2007-01-12 4:39 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-12 0:02 [PATCH 00/05] Linux Kernel Markers Mathieu Desnoyers
2007-01-12 0:02 ` [PATCH 01/05] Linux Kernel Markers : Kconfig menus Mathieu Desnoyers
2007-01-12 0:02 ` [PATCH 02/05] Linux Kernel Markers, architecture independant code Mathieu Desnoyers
2007-01-12 0:02 ` [PATCH 03/05] Linux Kernel Markers : powerpc optimisation Mathieu Desnoyers
2007-01-12 0:02 ` [PATCH 04/05] Linux Kernel Markers : i386 optimisation Mathieu Desnoyers
2007-01-12 0:02 ` [PATCH 05/05] Linux Kernel Markers, non optimised architectures Mathieu Desnoyers
2007-01-12 4:39 ` Nick Piggin [this message]
2007-01-12 5:00 ` Mathieu Desnoyers
2007-01-12 5:09 ` Nick Piggin
2007-01-12 17:15 ` Mathieu Desnoyers
2007-01-12 17:43 ` Mathieu Desnoyers
2007-01-12 18:23 ` [PATCH 05/05] update - " Mathieu Desnoyers
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