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Subject[PATCH 1/5] hostfs_lookup: switch to d_splice_alias()
Date
From: Al Viro <viro@zeniv.linux.org.uk>

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
fs/hostfs/hostfs_kern.c | 28 ++++++++--------------------
1 file changed, 8 insertions(+), 20 deletions(-)

diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 2597b290c2a5..444c7b170359 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -610,33 +610,21 @@ static struct dentry *hostfs_lookup(struct inode *ino, struct dentry *dentry,
int err;

inode = hostfs_iget(ino->i_sb);
- if (IS_ERR(inode)) {
- err = PTR_ERR(inode);
+ if (IS_ERR(inode))
goto out;
- }

err = -ENOMEM;
name = dentry_name(dentry);
- if (name == NULL)
- goto out_put;
-
- err = read_name(inode, name);
-
- __putname(name);
- if (err == -ENOENT) {
+ if (name) {
+ err = read_name(inode, name);
+ __putname(name);
+ }
+ if (err) {
iput(inode);
- inode = NULL;
+ inode = (err == -ENOENT) ? NULL : ERR_PTR(err);
}
- else if (err)
- goto out_put;
-
- d_add(dentry, inode);
- return NULL;
-
- out_put:
- iput(inode);
out:
- return ERR_PTR(err);
+ return d_splice_alias(inode, dentry);
}

static int hostfs_link(struct dentry *to, struct inode *ino,
--
2.11.0
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