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alpha: cleanup in bitops.h

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Remove 2 functions private to the alpha implemetation,
in favor of similar functions in <linux/log2.h>.

Provide a more efficient version of the fls64 function
for pre-ev67 alphas.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Richard Henderson
2007-05-29 16:01:35 -07:00
committed by Linus Torvalds
parent f54496f55a
commit 74fd1b687f
5 changed files with 73 additions and 24 deletions
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3
arch/alpha/kernel/setup.c
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@@ -43,6 +43,7 @@
#include <linux/notifier.h>
#include <asm/setup.h>
#include <asm/io.h>
#include <linux/log2.h>
extern struct atomic_notifier_head panic_notifier_list;
static int alpha_panic_event(struct notifier_block *, unsigned long, void *);
@@ -1303,7 +1304,7 @@ external_cache_probe(int minsize, int width)
long size = minsize, maxsize = MAX_BCACHE_SIZE * 2;
if (maxsize > (max_low_pfn + 1) << PAGE_SHIFT)
maxsize = 1 << (floor_log2(max_low_pfn + 1) + PAGE_SHIFT);
maxsize = 1 << (ilog2(max_low_pfn + 1) + PAGE_SHIFT);
/* Get the first block cached. */
read_mem_block(__va(0), stride, size);