GFS2: gfs2_create_inode(): don't bother with d_splice_alias()

dentry is always hashed and negative, inode - non-error, non-NULL and
non-directory.  In such conditions d_splice_alias() is equivalent to
"d_instantiate(dentry, inode) and return NULL", which simplifies the
downstream code and is consistent with the "have to create a new object"
case.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 4 insertions, 14 deletions

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index f41b2fd12416..9e8545bbc55c 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -596,7 +596,6 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
         struct gfs2_inode *dip = GFS2_I(dir), *ip;
         struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
         struct gfs2_glock *io_gl;
-        struct dentry *d;
         int error, free_vfs_inode = 0;
         u32 aflags = 0;
         unsigned blocks = 1;
@@ -629,22 +628,13 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
                         inode = ERR_PTR(-EISDIR);
                         goto fail_gunlock;
                 }
-                d = d_splice_alias(inode, dentry);
-                error = PTR_ERR(d);
-                if (IS_ERR(d)) {
-                        inode = ERR_CAST(d);
-                        goto fail_gunlock;
-                }
+                d_instantiate(dentry, inode);
                 error = 0;
                 if (file) {
-                        if (S_ISREG(inode->i_mode)) {
-                                WARN_ON(d != NULL);
+                        if (S_ISREG(inode->i_mode))
                                 error = finish_open(file, dentry, gfs2_open_common, opened);
-                        } else {
-                                error = finish_no_open(file, d);
-                        }
-                } else {
-                        dput(d);
+                        else
+                                error = finish_no_open(file, NULL);
                 }
                 gfs2_glock_dq_uninit(ghs);
                 return error;