Mask bits correctly from jhash result in ib_fmr_hash() so that the
computed bucket index is within our hash table. This fixes an SDP
crash.
Signed-off-by: Roland Dreier <[email protected]>
--- linux-export.orig/drivers/infiniband/core/fmr_pool.c 2005-03-31 19:07:05.000000000 -0800
+++ linux-export/drivers/infiniband/core/fmr_pool.c 2005-04-01 10:08:58.240241456 -0800
@@ -103,9 +103,8 @@
static inline u32 ib_fmr_hash(u64 first_page)
{
- return jhash_2words((u32) first_page,
- (u32) (first_page >> 32),
- 0);
+ return jhash_2words((u32) first_page, (u32) (first_page >> 32), 0) &
+ (IB_FMR_HASH_SIZE - 1);
}
/* Caller must hold pool_lock */
-
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