[RFC PATCH v11 44/51] ceph: don't use special DIO path for encrypted inodes

Jeff Layton
2022-03-22T14:16:41Z

Eventually I want to merge the synchronous and direct read codepaths,
possibly via new netfs infrastructure. For now, the direct path is not
crypto-enabled, so use the sync read/write paths instead.

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
fs/ceph/file.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index ba17288b1db3..5a637158f9c5 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -1705,7 +1705,9 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
ceph_cap_string(got));

if (ci->i_inline_version == CEPH_INLINE_NONE) {
- if (!retry_op && (iocb->ki_flags & IOCB_DIRECT)) {
+ if (!retry_op &&
+ (iocb->ki_flags & IOCB_DIRECT) &&
+ !IS_ENCRYPTED(inode)) {
ret = ceph_direct_read_write(iocb, to,
NULL, NULL);
if (ret >= 0 && ret < len)
@@ -1931,7 +1933,7 @@ static ssize_t ceph_write_iter(struct kiocb *iocb, struct iov_iter *from)

/* we might need to revert back to that point */
data = *from;
- if (iocb->ki_flags & IOCB_DIRECT)
+ if ((iocb->ki_flags & IOCB_DIRECT) && !IS_ENCRYPTED(inode))
written = ceph_direct_read_write(iocb, &data, snapc,
&prealloc_cf);
else
--
2.35.1