[PATCH 01/12] cred: add prepare credential guard
Christian Brauner <[email protected]>
| Newsgroups | gmane.linux.kernel.aio.general,gmane.linux.file-systems,gmane.linux.kernel,gmane.linux.file-systems.union,gmane.linux.nfs,gmane.linux.kernel.cifs,gmane.network.samba.internals,gmane.linux.kernel.cgroups,gmane.linux.network,gmane.linux.kernel.cryptoapi |
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| Message-ID | <20251103-work-creds-guards-prepare_creds-v1-1-b447b82f2c9b@kernel.org> |
A lot of code uses the following pattern: * prepare new credentials * modify them for their use-case * drop them Support that easier with the new guard infrastructure. Signed-off-by: Christian Brauner <[email protected]> --- include/linux/cred.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/cred.h b/include/linux/cred.h index 1778c0535b90..a1e33227e0c2 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -285,6 +285,11 @@ static inline void put_cred(const struct cred *cred) put_cred_many(cred, 1); } +DEFINE_CLASS(prepare_creds, + struct cred *, + if (_T) put_cred(_T), + prepare_creds(), void) + DEFINE_FREE(put_cred, struct cred *, if (!IS_ERR_OR_NULL(_T)) put_cred(_T)) /** -- 2.47.3 -- To unsubscribe, send a message with 'unsubscribe linux-aio' in the body to [email protected]. For more info on Linux AIO, see: http://www.kvack.org/aio/ Don't email: <a href=mailto:"[email protected]">[email protected]</a>