Re: [RFC, 2.6] a simple FIFO implementation

[Ryan Cumming]

Er, sorry, the last patch was had an off-by-one error (it would round 4 up to 
8).

-Ryan
--- include/linux/kernel.h	2004-09-16 06:38:19.000000000 -0700
+++ include/linux/kernel.h	2004-09-17 15:12:20.598844004 -0700
@@ -12,6 +12,7 @@
 #include <linux/stddef.h>
 #include <linux/types.h>
 #include <linux/compiler.h>
+#include <linux/bitops.h>
 #include <asm/byteorder.h>
 #include <asm/bug.h>
 
@@ -111,6 +112,10 @@
 	return r;
 }
 
+static inline unsigned long __attribute_pure__ roundup_pow_of_two(int x)
+{
+	return (1UL << fls(x - 1));
+}
 
 extern int printk_ratelimit(void);
 extern int __printk_ratelimit(int ratelimit_jiffies, int ratelimit_burst);

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