[Devel] [PATCH 1/1] mktree: long is bigger on 64-bit (v2)

[Serge E. Hallyn]

mktree's hash function assumes that long is 32 bits.  Fix.

This version takes Nathan's suggestion of using sizeof(key)
instead of sizeof(long).

Signed-off-by: Serge Hallyn <serue at us.ibm.com>
---
 mktree.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/mktree.c b/mktree.c
index 7a8cecc..c1f13b8 100644
--- a/mktree.c
+++ b/mktree.c
@@ -1291,7 +1291,7 @@ static void hash_exit(struct ckpt_ctx *ctx)
 static inline int hash_func(long key)
 {
 	unsigned long hash = key * GOLDEN_RATIO_PRIME_32;
-	return (hash >> (32 - HASH_BITS));
+	return (hash >> (sizeof(key)*8 - HASH_BITS));
 }
 
 static int hash_insert(struct ckpt_ctx *ctx, long key, void *data)
-- 
1.6.1.1

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