[PATCH 09/16] erofs: use credential guards
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 |
|---|---|
| Message-ID | <[email protected]> |
Use credential guards for scoped credential override with automatic restoration on scope exit. Signed-off-by: Christian Brauner <[email protected]> --- fs/erofs/fileio.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/erofs/fileio.c b/fs/erofs/fileio.c index b7b3432a9882..d27938435b2f 100644 --- a/fs/erofs/fileio.c +++ b/fs/erofs/fileio.c @@ -47,7 +47,6 @@ static void erofs_fileio_ki_complete(struct kiocb *iocb, long ret) static void erofs_fileio_rq_submit(struct erofs_fileio_rq *rq) { - const struct cred *old_cred; struct iov_iter iter; int ret; @@ -61,9 +60,8 @@ static void erofs_fileio_rq_submit(struct erofs_fileio_rq *rq) rq->iocb.ki_flags = IOCB_DIRECT; iov_iter_bvec(&iter, ITER_DEST, rq->bvecs, rq->bio.bi_vcnt, rq->bio.bi_iter.bi_size); - old_cred = override_creds(rq->iocb.ki_filp->f_cred); - ret = vfs_iocb_iter_read(rq->iocb.ki_filp, &rq->iocb, &iter); - revert_creds(old_cred); + scoped_with_creds(rq->iocb.ki_filp->f_cred) + ret = vfs_iocb_iter_read(rq->iocb.ki_filp, &rq->iocb, &iter); if (ret != -EIOCBQUEUED) erofs_fileio_ki_complete(&rq->iocb, ret); } -- 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>