branches/zip: buf_page_peek_if_too_old(): Make the bitmasking work when

buf_pool->freed_page_clock is wider than 32 bits.

branches/zip: buf_page_peek_if_too_old(): Make the bitmasking work when
buf_pool->freed_page_clock is wider than 32 bits.
54a450f6 · marko · 42b170bb · 54a450f6
Commit 54a450f6 authored Sep 09, 2009 by marko
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include/buf0buf.ic include/buf0buf.ic +1 -1

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--- a/include/buf0buf.ic
+++ b/include/buf0buf.ic
@@ -84,7 +84,7 @@ buf_page_peek_if_too_old(
 		return(FALSE);
 	} else {
 		/* FIXME: bpage->freed_page_clock is 31 bits */
-		return((buf_pool->freed_page_clock & ~(1 << 31))
+		return((buf_pool->freed_page_clock & ((1 << 31) - 1))
 		       > bpage->freed_page_clock
 		       + (buf_pool->curr_size
 			  * (BUF_LRU_OLD_RATIO_DIV - buf_LRU_old_ratio)