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ovl: port ovl_do_remove() to cred guard

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Use the scoped ovl cred guard.

Link: https://patch.msgid.link/20251117-work-ovl-cred-guard-v4-5-b31603935724@kernel.org
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Christian Brauner 2025-11-17 10:33:36 +01:00
parent ff4f6e4689
commit 8368eb837e
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 6 additions and 7 deletions
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13
fs/overlayfs/dir.c
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@ -907,7 +907,6 @@ static void ovl_drop_nlink(struct dentry *dentry)
static int ovl_do_remove(struct dentry *dentry, bool is_dir)
{
int err;
const struct cred *old_cred;
bool lower_positive = ovl_lower_positive(dentry);
LIST_HEAD(list);
@ -926,12 +925,12 @@ static int ovl_do_remove(struct dentry *dentry, bool is_dir)
if (err)
goto out;
old_cred = ovl_override_creds(dentry->d_sb);
if (!lower_positive)
err = ovl_remove_upper(dentry, is_dir, &list);
else
err = ovl_remove_and_whiteout(dentry, &list);
ovl_revert_creds(old_cred);
with_ovl_creds(dentry->d_sb) {
if (!lower_positive)
err = ovl_remove_upper(dentry, is_dir, &list);
else
err = ovl_remove_and_whiteout(dentry, &list);
}
if (!err) {
if (is_dir)
clear_nlink(dentry->d_inode);