diff options
| author | Alyona Romanenko <alyona.romanenko@seagate.com> | 2016-03-02 22:01:50 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-03-02 23:23:49 (GMT) |
| commit | 5412d816dac18b9f035a753f54fc0e084c8cf376 (patch) | |
| tree | 248a2870e6be47c23dc852edf5a95ba8ab1ea8dd | |
| parent | 15dd2536671e9d0fd7880823b2f4bf0d2e43dbf5 (diff) | |
| download | linux-5412d816dac18b9f035a753f54fc0e084c8cf376.tar.xz | |
staging: lustre: issue in the offset in lnet match hash table
the offset in hash table is overflowed for no wildcard portal.
The offset for no wildcard has been corrected as for wildcard
in the LU-1622
Signed-off-by: Alyona Romanenko <alyona.romanenko@seagate.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7774
Reviewed-on: http://review.whamcloud.com/18422
Reviewed-by: Doug Oucharek <doug.s.oucharek@intel.com>
Reviewed-by: James Simmons <uja.ornl@yahoo.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/staging/lustre/lnet/lnet/lib-ptl.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/drivers/staging/lustre/lnet/lnet/lib-ptl.c b/drivers/staging/lustre/lnet/lnet/lib-ptl.c index 2b41205..3947e8b 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-ptl.c +++ b/drivers/staging/lustre/lnet/lnet/lib-ptl.c @@ -360,16 +360,15 @@ lnet_mt_match_head(struct lnet_match_table *mtable, lnet_process_id_t id, __u64 mbits) { struct lnet_portal *ptl = the_lnet.ln_portals[mtable->mt_portal]; + unsigned long hash = mbits; - if (lnet_ptl_is_wildcard(ptl)) { - return &mtable->mt_mhash[mbits & LNET_MT_HASH_MASK]; - } else { - unsigned long hash = mbits + id.nid + id.pid; + if (!lnet_ptl_is_wildcard(ptl)) { + hash += id.nid + id.pid; LASSERT(lnet_ptl_is_unique(ptl)); hash = hash_long(hash, LNET_MT_HASH_BITS); - return &mtable->mt_mhash[hash]; } + return &mtable->mt_mhash[hash & LNET_MT_HASH_MASK]; } int |