From: Pavel Shilovsky <piastry@etersoft.ru>
Date: Thu, 26 May 2011 19:35:47 +0000 (+0400)
Subject: CIFS: Migrate to shared superblock model
X-Git-Tag: v3.0-rc1~43^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=25c7f41e9234f60af30e086278f1de7974f8816f;p=pandora-kernel.git

CIFS: Migrate to shared superblock model

Add cifs_match_super to use in sget to share superblock between mounts
that have the same //server/sharename, credentials and mount options.
It helps us to improve performance on work with future SMB2.1 leases.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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