From: blaisorblade_spam@yahoo.it
To: akpm@osdl.org
Cc: linux-kernel@vger.kernel.org, blaisorblade_spam@yahoo.it
Subject: [patch 1/1] use offsetof for rb_entry
Date: Thu, 07 Oct 2004 19:53:42 +0200 [thread overview]
Message-ID: <20041007175343.AE28944CD@zion.localdomain> (raw)
Use, in the rb_entry definition, the offsetof macro instead of reinventing the
wheel.
Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it>
---
linux-2.6.9-current-paolo/include/linux/rbtree.h | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
diff -puN include/linux/rbtree.h~use-offsetof-rb_entry include/linux/rbtree.h
--- linux-2.6.9-current/include/linux/rbtree.h~use-offsetof-rb_entry 2004-10-07 16:11:27.590555976 +0200
+++ linux-2.6.9-current-paolo/include/linux/rbtree.h 2004-10-07 16:11:27.592555672 +0200
@@ -114,7 +114,7 @@ struct rb_root
#define RB_ROOT (struct rb_root) { NULL, }
#define rb_entry(ptr, type, member) \
- ((type *)((char *)(ptr)-(unsigned long)(&((type *)0)->member)))
+ ((type *)((char *)(ptr) - offsetof(type, member)))
extern void rb_insert_color(struct rb_node *, struct rb_root *);
extern void rb_erase(struct rb_node *, struct rb_root *);
_
next reply other threads:[~2004-10-07 21:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-07 17:53 blaisorblade_spam [this message]
2004-10-07 21:27 ` Christoph Hellwig
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