tree 28c21b7b7628861a735473ae7c8bf0baf588ab8f
parent dfe7cc7e816224b002f6887b2a82cba677f27344
author Roland Dreier <[EMAIL PROTECTED]> Sun, 17 Apr 2005 05:26:10 -0700
committer Linus Torvalds <[EMAIL PROTECTED]> Sun, 17 Apr 2005 05:26:10 -0700
[PATCH] IB: Fix FMR pool crash
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]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
infiniband/core/fmr_pool.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
Index: drivers/infiniband/core/fmr_pool.c
===================================================================
--- 647dfb399217c65a74790d52a0b7c3fcbce2849b/drivers/infiniband/core/fmr_pool.c
(mode:100644 sha1:2e9469f189263bd56bea876cf976a7bb8fdb22e2)
+++ 28c21b7b7628861a735473ae7c8bf0baf588ab8f/drivers/infiniband/core/fmr_pool.c
(mode:100644 sha1:59ee001ff05b1f212fa64b08a2f35cce1a04668b)
@@ -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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