From c22205d0584bc65cfc9a65db0e15a9b69f5cdf64 Mon Sep 17 00:00:00 2001 From: Amir Goldstein Date: Wed, 26 Apr 2017 23:40:52 +0300 Subject: [PATCH] ovl: use an auxiliary var for overlay root entry Signed-off-by: Amir Goldstein Signed-off-by: Miklos Szeredi --- fs/overlayfs/namei.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/fs/overlayfs/namei.c b/fs/overlayfs/namei.c index b8b077821fb0..d0a3e4ad3042 100644 --- a/fs/overlayfs/namei.c +++ b/fs/overlayfs/namei.c @@ -220,6 +220,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, const struct cred *old_cred; struct ovl_fs *ofs = dentry->d_sb->s_fs_info; struct ovl_entry *poe = dentry->d_parent->d_fsdata; + struct ovl_entry *roe = dentry->d_sb->s_root->d_fsdata; struct path *stack = NULL; struct dentry *upperdir, *upperdentry = NULL; unsigned int ctr = 0; @@ -259,7 +260,7 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, if (!upperredirect) goto out_put_upper; if (d.redirect[0] == '/') - poe = dentry->d_sb->s_root->d_fsdata; + poe = roe; } upperopaque = d.opaque; } @@ -290,10 +291,8 @@ struct dentry *ovl_lookup(struct inode *dir, struct dentry *dentry, if (d.stop) break; - if (d.redirect && - d.redirect[0] == '/' && - poe != dentry->d_sb->s_root->d_fsdata) { - poe = dentry->d_sb->s_root->d_fsdata; + if (d.redirect && d.redirect[0] == '/' && poe != roe) { + poe = roe; /* Find the current layer on the root dentry */ for (i = 0; i < poe->numlower; i++) -- 2.20.1