tree 201e35c4e726119da7b6d251de29fbcdaed95116
parent bb5cffefa366dd264c4385c1e52e15f9e3126708
author Roland Dreier <[EMAIL PROTECTED]> Tue Apr 12 08:26:37 2005
committer Linus Torvalds <[EMAIL PROTECTED]> Tue Apr 12 08:26:37 2005
[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]>
fmr_pool.c | 5 ++---
1 files changed, 2 insertions(+), 3 deletions(-)
Index: drivers/infiniband/core/fmr_pool.c
===================================================================
--- 76ac203a7ae732ca37f8beffcede512b73acd612/drivers/infiniband/core/fmr_pool.c
(mode:100644 sha1:1e3c6306c8f9fc3030536846c9e2ceaab8630c49)
+++ 201e35c4e726119da7b6d251de29fbcdaed95116/drivers/infiniband/core/fmr_pool.c
(mode:100644 sha1:f1b74ccc3f78ce406c9689c8396241e97fd9d828)
@@ -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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