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ovl: port ovl_get_link() to cred guard

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Use the scoped ovl cred guard.

Link: https://patch.msgid.link/20251117-work-ovl-cred-guard-v4-16-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 10:33:47 +01:00
parent d81999b40b
commit 47eba7f7fd
1 changed files with 2 additions and 7 deletions
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9
fs/overlayfs/inode.c
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@@ -325,16 +325,11 @@ static const char *ovl_get_link(struct dentry *dentry,
struct inode *inode,
struct delayed_call *done)
{
const struct cred *old_cred;
const char *p;
if (!dentry)
return ERR_PTR(-ECHILD);
old_cred = ovl_override_creds(dentry->d_sb);
p = vfs_get_link(ovl_dentry_real(dentry), done);
ovl_revert_creds(old_cred);
return p;
with_ovl_creds(dentry->d_sb)
return vfs_get_link(ovl_dentry_real(dentry), done);
}
#ifdef CONFIG_FS_POSIX_ACL