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Subject[PATCH] ida: fix up bitmap size calculation
Date
ida chunk should consist of 128 bytes (= 1024 bits) by definition
but because of wrong calculation of IDA_BITMAP_LONGS it only contained
992 on 32-bit machines, 960 on 64-bit machines. Fix it.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
---
include/linux/idr.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/idr.h b/include/linux/idr.h
index e968db7..13c7296 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -119,8 +119,8 @@ void idr_init(struct idr *idp);
* pointer isn't necessary.
*/
#define IDA_CHUNK_SIZE 128 /* 128 bytes per chunk */
-#define IDA_BITMAP_LONGS (128 / sizeof(long) - 1)
-#define IDA_BITMAP_BITS (IDA_BITMAP_LONGS * sizeof(long) * 8)
+#define IDA_BITMAP_LONGS (IDA_CHUNK_SIZE / sizeof(long))
+#define IDA_BITMAP_BITS (IDA_CHUNK_SIZE * 8)

struct ida_bitmap {
long nr_busy;
--
1.7.2.2


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