From: Roland Dreier <[email protected]>
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]>
Signed-off-by: Andrew Morton <[email protected]>
---
25-akpm/drivers/infiniband/core/fmr_pool.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
diff -puN drivers/infiniband/core/fmr_pool.c~ib-fix-fmr-pool-crash drivers/infiniband/core/fmr_pool.c
--- 25/drivers/infiniband/core/fmr_pool.c~ib-fix-fmr-pool-crash 2005-04-12 03:21:41.546820824 -0700
+++ 25-akpm/drivers/infiniband/core/fmr_pool.c 2005-04-12 03:21:41.549820368 -0700
@@ -103,9 +103,8 @@ struct ib_fmr_pool {
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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