GFS2: Make . and .. qstrs constant

Rather than calculating the qstrs for . and .. each time
we need them, its better to keep a constant version of
these and just refer to them when required.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Reviewed-by: Christoph Hellwig <hch@infradead.org>

1 files changed, 1 insertions, 8 deletions

diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index dfe237a3f8ad..06d582732d34 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -126,16 +126,9 @@ static int gfs2_get_name(struct dentry *parent, char *name,
 
 static struct dentry *gfs2_get_parent(struct dentry *child)
 {
-        struct qstr dotdot;
         struct dentry *dentry;
 
-        /*
-         * XXX(hch): it would be a good idea to keep this around as a
-         *           static variable.
-         */
-        gfs2_str2qstr(&dotdot, "..");
-
-        dentry = d_obtain_alias(gfs2_lookupi(child->d_inode, &dotdot, 1));
+        dentry = d_obtain_alias(gfs2_lookupi(child->d_inode, &gfs2_qdotdot, 1));
         if (!IS_ERR(dentry))
                 dentry->d_op = &gfs2_dops;
         return dentry;