The patch titled
log2.h: Define order_base_2() macro for convenience.
has been removed from the -mm tree. Its filename was
log2h-define-order_base_2-macro-for-convenience.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: log2.h: Define order_base_2() macro for convenience.
From: "Robert P. J. Day" <rpjday@xxxxxxxxxxxxxx>
Given a number of places in the tree that need to calculate this value
explicitly, might as well just create a macro for it.
(akpm: must be implemented as a macro for callee typeof() usage)
Signed-off-by: Robert P. J. Day <rpjday@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/log2.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff -puN include/linux/log2.h~log2h-define-order_base_2-macro-for-convenience include/linux/log2.h
--- a/include/linux/log2.h~log2h-define-order_base_2-macro-for-convenience
+++ a/include/linux/log2.h
@@ -190,4 +190,20 @@ unsigned long __rounddown_pow_of_two(uns
__rounddown_pow_of_two(n) \
)
+/**
+ * order_base_2 - calculate the (rounded up) base 2 order of the argument
+ * @n: parameter
+ *
+ * The first few values calculated by this routine:
+ * ob2(0) = 0
+ * ob2(1) = 0
+ * ob2(2) = 1
+ * ob2(3) = 2
+ * ob2(4) = 2
+ * ob2(5) = 3
+ * ... and so on.
+ */
+
+#define order_base_2(n) ilog2(roundup_pow_of_two(n))
+
#endif /* _LINUX_LOG2_H */
_
Patches currently in -mm which might be from rpjday@xxxxxxxxxxxxxx are
origin.patch
git-hwmon.patch
git-xfs.patch
-
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