netfs: Fix netfs_unbuffered_read() to return ssize_t rather than int

[ Upstream commit 07c574eb53d4cc9aa7b985bc8bfcb302e5dc4694 ]

Fix netfs_unbuffered_read() to return an ssize_t rather than an int as
netfs_wait_for_read() returns ssize_t and this gets implicitly truncated.

Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20250314164201.1993231-5-dhowells@redhat.com
Acked-by: "Paulo Alcantara (Red Hat)" <pc@manguebit.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: Viacheslav Dubeyko <slava@dubeyko.com>
cc: Alex Markuze <amarkuze@redhat.com>
cc: Ilya Dryomov <idryomov@gmail.com>
cc: ceph-devel@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/netfs/direct_read.c b/fs/netfs/direct_read.c
index b1a66a6e6bc2d68e0b0a7ae78c91c94df9897330..917b7edc34ef577d51f1c80ae1548f5b1054f503 100644 (file)
--- a/fs/netfs/direct_read.c
+++ b/fs/netfs/direct_read.c
@@ -108,9 +108,9 @@ static int netfs_dispatch_unbuffered_reads(struct netfs_io_request *rreq)
  * Perform a read to an application buffer, bypassing the pagecache and the
  * local disk cache.
  */
-static int netfs_unbuffered_read(struct netfs_io_request *rreq, bool sync)
+static ssize_t netfs_unbuffered_read(struct netfs_io_request *rreq, bool sync)
 {
-       int ret;
+       ssize_t ret;
 
        _enter("R=%x %llx-%llx",
               rreq->debug_id, rreq->start, rreq->start + rreq->len - 1);
@@ -149,7 +149,7 @@ static int netfs_unbuffered_read(struct netfs_io_request *rreq, bool sync)
        }
 
 out:
-       _leave(" = %d", ret);
+       _leave(" = %zd", ret);
        return ret;
 }