From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from zeniv.linux.org.uk ([195.92.253.2]:36144 "EHLO ZenIV.linux.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727540AbeHCSsW (ORCPT ); Fri, 3 Aug 2018 14:48:22 -0400 From: Al Viro To: linux-fsdevel@vger.kernel.org Cc: linux-kernel@vger.kernel.org Subject: [PATCH 3/5] afs_lookup(): switch to d_splice_alias() Date: Fri, 3 Aug 2018 17:51:13 +0100 Message-Id: <20180803165115.21094-4-viro@ZenIV.linux.org.uk> In-Reply-To: <20180803165115.21094-1-viro@ZenIV.linux.org.uk> References: <20180803165115.21094-1-viro@ZenIV.linux.org.uk> Sender: linux-fsdevel-owner@vger.kernel.org List-ID: From: Al Viro Signed-off-by: Al Viro --- fs/afs/dir.c | 47 ++++++++++++----------------------------------- 1 file changed, 12 insertions(+), 35 deletions(-) diff --git a/fs/afs/dir.c b/fs/afs/dir.c index 7d623008157f..3099349cedfa 100644 --- a/fs/afs/dir.c +++ b/fs/afs/dir.c @@ -822,6 +822,7 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry, { struct afs_vnode *dvnode = AFS_FS_I(dir); struct inode *inode; + struct dentry *d; struct key *key; int ret; @@ -862,43 +863,19 @@ static struct dentry *afs_lookup(struct inode *dir, struct dentry *dentry, afs_stat_v(dvnode, n_lookup); inode = afs_do_lookup(dir, dentry, key); - if (IS_ERR(inode)) { - ret = PTR_ERR(inode); - if (ret == -ENOENT) { - inode = afs_try_auto_mntpt(dentry, dir); - if (!IS_ERR(inode)) { - key_put(key); - goto success; - } - - ret = PTR_ERR(inode); - } - - key_put(key); - if (ret == -ENOENT) { - d_add(dentry, NULL); - _leave(" = NULL [negative]"); - return NULL; - } - _leave(" = %d [do]", ret); - return ERR_PTR(ret); + if (inode == ERR_PTR(-ENOENT)) { + inode = afs_try_auto_mntpt(dentry, dir); + if (inode == ERR_PTR(-ENOENT)) + inode = NULL; + } else { + dentry->d_fsdata = + (void *)(unsigned long)dvnode->status.data_version; } - dentry->d_fsdata = (void *)(unsigned long)dvnode->status.data_version; - - /* instantiate the dentry */ key_put(key); - if (IS_ERR(inode)) { - _leave(" = %ld", PTR_ERR(inode)); - return ERR_CAST(inode); - } - -success: - d_add(dentry, inode); - _leave(" = 0 { ino=%lu v=%u }", - d_inode(dentry)->i_ino, - d_inode(dentry)->i_generation); - - return NULL; + d = d_splice_alias(inode, dentry); + if (!IS_ERR_OR_NULL(d)) + d->d_fsdata = dentry->d_fsdata; + return d; } /* -- 2.11.0