[RFC PATCH 5/5] ceph: switch to sparse reads

[Jeff Layton <jlayton@kernel.org>]

Switch the cephfs client to use sparse reads instead of normal ones.

XXX: doesn't currently work since OSD doesn't support truncate_seq
     on a sparse read. See: https://tracker.ceph.com/issues/54280

Signed-off-by: Jeff Layton <jlayton@kernel.org>
---
 fs/ceph/addr.c | 2 +-
 fs/ceph/file.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 46e0881ae8b2..565cc2197dd1 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -317,7 +317,7 @@ static void ceph_netfs_issue_op(struct netfs_read_subrequest *subreq)
 		return;
 
 	req = ceph_osdc_new_request(&fsc->client->osdc, &ci->i_layout, vino, subreq->start, &len,
-			0, 1, CEPH_OSD_OP_READ,
+			0, 1, CEPH_OSD_OP_SPARSE_READ,
 			CEPH_OSD_FLAG_READ | fsc->client->osdc.client->options->read_from_replica,
 			NULL, ci->i_truncate_seq, ci->i_truncate_size, false);
 	if (IS_ERR(req)) {
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index feb75eb1cd82..d1956a20c627 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -934,7 +934,7 @@ static ssize_t ceph_sync_read(struct kiocb *iocb, struct iov_iter *to,
 
 		req = ceph_osdc_new_request(osdc, &ci->i_layout,
 					ci->i_vino, off, &len, 0, 1,
-					CEPH_OSD_OP_READ, CEPH_OSD_FLAG_READ,
+					CEPH_OSD_OP_SPARSE_READ, CEPH_OSD_FLAG_READ,
 					NULL, ci->i_truncate_seq,
 					ci->i_truncate_size, false);
 		if (IS_ERR(req)) {
@@ -1291,7 +1291,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
 					    vino, pos, &size, 0,
 					    1,
 					    write ? CEPH_OSD_OP_WRITE :
-						    CEPH_OSD_OP_READ,
+						    CEPH_OSD_OP_SPARSE_READ,
 					    flags, snapc,
 					    ci->i_truncate_seq,
 					    ci->i_truncate_size,
-- 
2.34.1