From: "Luís Henriques" <lhenriques@suse.de>
To: Eric Biggers <ebiggers@kernel.org>, Xiubo Li <xiubli@redhat.com>,
Jeff Layton <jlayton@kernel.org>
Cc: "Theodore Y. Ts'o" <tytso@mit.edu>,
"Jaegeuk Kim" <jaegeuk@kernel.org>,
"Ilya Dryomov" <idryomov@gmail.com>,
linux-fscrypt@vger.kernel.org, ceph-devel@vger.kernel.org,
linux-kernel@vger.kernel.org,
"Luís Henriques" <lhenriques@suse.de>
Subject: [PATCH 2/2] ceph: switch atomic open to use new fscrypt helper
Date: Mon, 13 Mar 2023 12:33:10 +0000 [thread overview]
Message-ID: <20230313123310.13040-3-lhenriques@suse.de> (raw)
In-Reply-To: <20230313123310.13040-1-lhenriques@suse.de>
Switch ceph atomic open to use fscrypt_prepare_atomic_open(). This fixes
a bug where a dentry is incorrectly set with DCACHE_NOKEY_NAME when 'dir'
has been evicted but the key is still available (for example, where there's
a drop_caches).
Signed-off-by: Luís Henriques <lhenriques@suse.de>
---
fs/ceph/file.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index dee3b445f415..5ad57cc4c13b 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -795,11 +795,9 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
ihold(dir);
if (IS_ENCRYPTED(dir)) {
set_bit(CEPH_MDS_R_FSCRYPT_FILE, &req->r_req_flags);
- if (!fscrypt_has_encryption_key(dir)) {
- spin_lock(&dentry->d_lock);
- dentry->d_flags |= DCACHE_NOKEY_NAME;
- spin_unlock(&dentry->d_lock);
- }
+ err = fscrypt_prepare_atomic_open(dir, dentry);
+ if (err)
+ goto out_req;
}
if (flags & O_CREAT) {
next prev parent reply other threads:[~2023-03-13 12:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-13 12:33 [PATCH 0/2] ceph: fscrypt: fix atomic open bug for encrypted directories Luís Henriques
2023-03-13 12:33 ` [PATCH 1/2] fscrypt: new helper function - fscrypt_prepare_atomic_open() Luís Henriques
2023-03-13 18:09 ` Eric Biggers
2023-03-14 0:53 ` Xiubo Li
2023-03-14 2:25 ` Eric Biggers
2023-03-14 4:20 ` Xiubo Li
2023-03-14 9:25 ` Luís Henriques
2023-03-14 10:15 ` Luís Henriques
2023-03-14 17:56 ` Eric Biggers
2023-03-15 11:08 ` Luís Henriques
2023-03-15 17:12 ` Eric Biggers
2023-03-15 17:59 ` Luís Henriques
2023-03-13 12:33 ` Luís Henriques [this message]
2023-03-13 18:11 ` [PATCH 2/2] ceph: switch atomic open to use new fscrypt helper Eric Biggers
2023-03-13 18:42 ` Luís Henriques
2023-03-14 0:38 ` Xiubo Li
2023-03-14 9:27 ` Luís Henriques
2023-03-13 17:11 ` [PATCH 0/2] ceph: fscrypt: fix atomic open bug for encrypted directories Jeff Layton
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