Commit 5412d816 authored Mar 02, 2016 by Alyona Romanenko Committed by Greg Kroah-Hartman Mar 02, 2016

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>

parent 15dd2536

drivers/staging/lustre/lnet/lnet/lib-ptl.c

+4 −5

Original line number	Diff line number	Diff line
		@@ -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