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ovl: use an auxiliary var for overlay root entry

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Signed-off-by: Amir Goldstein <[email protected]>
Signed-off-by: Miklos Szeredi <[email protected]>
This commit is contained in:
Amir Goldstein 2017-04-26 23:40:52 +03:00 • committed by Miklos Szeredi
commit c22205d058
1 changed files with 4 additions and 5 deletions
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9
fs/overlayfs/namei.c
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@ -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++)