Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Luís Henriques <> | Subject | [PATCH 2/2] ceph: switch atomic open to use new fscrypt helper | Date | Mon, 13 Mar 2023 12:33:10 +0000 |
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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) {
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