From: Andrew Morton <akpm@linux-foundation.org>
To: npiggin@suse.de
Cc: Al Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org, Ian Kent <raven@themaw.net>,
Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org
Subject: Re: [patch 4/6] brlock: introduce special brlocks
Date: Sun, 18 Oct 2009 22:25:12 -0700 [thread overview]
Message-ID: <20091018222512.683973f7.akpm@linux-foundation.org> (raw)
In-Reply-To: <20091015050048.777261867@suse.de>
On Thu, 15 Oct 2009 15:40:30 +1100 npiggin@suse.de wrote:
> +#define DECLARE_BRLOCK(name) \
This:
> + DECLARE_PER_CPU(spinlock_t, name##_lock); \
> + static inline void name##_lock_init(void) { \
> + int i; \
> + for_each_possible_cpu(i) { \
> + spinlock_t *lock; \
> + lock = &per_cpu(name##_lock, i); \
> + spin_lock_init(lock); \
> + } \
> + } \
> + static inline void name##_rlock(void) { \
> + spinlock_t *lock; \
> + lock = &get_cpu_var(name##_lock); \
> + spin_lock(lock); \
> + } \
generates a definition, not a declaration. Hence DEFINE_BRLOCK.
</petpeeve #29>
next prev parent reply other threads:[~2009-10-19 5:25 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-15 4:40 [patch 0/6] vfsmount scaling and other bits npiggin
2009-10-15 4:40 ` [patch 1/6] fs: invalidate sb->s_bdev on remount,ro npiggin
2009-10-15 4:40 ` [patch 2/6] fs: no games with DCACHE_UNHASHED npiggin
2009-10-15 6:31 ` David Miller
2009-10-15 7:44 ` Eric Dumazet
2009-10-15 8:13 ` Nick Piggin
2009-10-15 8:29 ` Nick Piggin
2009-10-15 9:13 ` Eric Dumazet
2009-10-15 13:20 ` Matthew Wilcox
2009-10-15 14:41 ` Nick Piggin
2009-10-15 4:40 ` [patch 3/6] fs: dcache remove d_mounted npiggin
2009-10-15 10:37 ` Ian Kent
2009-10-15 4:40 ` [patch 4/6] brlock: introduce special brlocks npiggin
2009-10-15 6:58 ` [rfc][patch 4a/6] brlock: "fast" brlocks Nick Piggin
2009-10-15 11:05 ` Peter Zijlstra
2009-10-15 11:26 ` Nick Piggin
2009-10-19 5:25 ` Andrew Morton [this message]
2009-10-19 9:49 ` [patch 4/6] brlock: introduce special brlocks Nick Piggin
2009-10-19 12:24 ` Andrew Morton
2009-10-19 12:48 ` Nick Piggin
2009-10-15 4:40 ` [patch 5/6] fs: brlock vfsmount_lock npiggin
2009-10-15 4:40 ` [patch 6/6] fs: scale mntget/mntput npiggin
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