From 54ef487241e863a6046536ac5b1fcd5d7cde86e5 Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Tue, 5 Jun 2012 15:10:16 +0200 Subject: [PATCH] vfs: lookup_open(): expand lookup_hash() Copy __lookup_hash() into lookup_open(). The next patch will insert the atomic open call just before the real lookup. Signed-off-by: Miklos Szeredi Signed-off-by: Al Viro --- fs/namei.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/fs/namei.c b/fs/namei.c index fad7117dbb28..ccb0eb17f528 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -2209,14 +2209,24 @@ static struct file *lookup_open(struct nameidata *nd, struct path *path, int *want_write, bool *created) { struct dentry *dir = nd->path.dentry; + struct inode *dir_inode = dir->d_inode; struct dentry *dentry; int error; + bool need_lookup; *created = false; - dentry = lookup_hash(nd); + dentry = lookup_dcache(&nd->last, dir, nd, &need_lookup); if (IS_ERR(dentry)) return ERR_CAST(dentry); + if (need_lookup) { + BUG_ON(dentry->d_inode); + + dentry = lookup_real(dir_inode, dentry, nd); + if (IS_ERR(dentry)) + return ERR_CAST(dentry); + } + /* Negative dentry, just create the file */ if (!dentry->d_inode && (op->open_flag & O_CREAT)) { umode_t mode = op->mode; -- 2.20.1