From: Stanislav Kinsbursky Date: Mon, 26 Dec 2011 12:39:22 +0000 (+0300) Subject: SUNRPC: pipefs dentry lookup helper introduced X-Git-Tag: v3.4-rc1~123^2~220 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=432eb1a5fb380477ae759041bac2bb305977e436;p=pandora-kernel.git SUNRPC: pipefs dentry lookup helper introduced In all places, where pipefs dentries are created, only directory inode is actually required to create new dentry. And all this directories has root pipefs dentry as their parent. So we actually don't need this pipefs mount point at all if some pipefs lookup method will be provided. IOW, all we really need is just superblock and simple lookup method to find root's child dentry with appropriate name. And this patch introduces this method. Note, that no locking implemented in rpc_d_lookup_sb(). So it can be used only in case of assurance, that pipefs superblock still exist. IOW, we can use this method only in pipefs mount-umount notification subscribers callbacks. Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust --- Reading git-diff-tree failed