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ovl: port ovl_xattr_get() to cred guard

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Use the scoped ovl cred guard.

Link: https://patch.msgid.link/20251117-work-ovl-cred-guard-v4-31-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 10:34:02 +01:00
parent d605301726
commit ae64b54185
1 changed files with 2 additions and 6 deletions
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8
fs/overlayfs/xattrs.c
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@@ -81,15 +81,11 @@ static int ovl_xattr_set(struct dentry *dentry, struct inode *inode, const char
static int ovl_xattr_get(struct dentry *dentry, struct inode *inode, const char *name,
void *value, size_t size)
{
ssize_t res;
const struct cred *old_cred;
struct path realpath;
ovl_i_path_real(inode, &realpath);
old_cred = ovl_override_creds(dentry->d_sb);
res = vfs_getxattr(mnt_idmap(realpath.mnt), realpath.dentry, name, value, size);
ovl_revert_creds(old_cred);
return res;
with_ovl_creds(dentry->d_sb)
return vfs_getxattr(mnt_idmap(realpath.mnt), realpath.dentry, name, value, size);
}
static bool ovl_can_list(struct super_block *sb, const char *s)