[RFC PATCH 49/53] cifs: Move cifs_loose_read_iter() and cifs_file_write_iter() to file.c

From: David Howells <dhowells@redhat.com>
To: Jeff Layton <jlayton@kernel.org>, Steve French <smfrench@gmail.com>
Cc: David Howells <dhowells@redhat.com>,
	Matthew Wilcox <willy@infradead.org>,
	Marc Dionne <marc.dionne@auristor.com>,
	Paulo Alcantara <pc@manguebit.com>,
	Shyam Prasad N <sprasad@microsoft.com>,
	Tom Talpey <tom@talpey.com>,
	Dominique Martinet <asmadeus@codewreck.org>,
	Ilya Dryomov <idryomov@gmail.com>,
	Christian Brauner <christian@brauner.io>,
	linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org,
	linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org,
	v9fs@lists.linux.dev, linux-fsdevel@vger.kernel.org,
	linux-mm@kvack.org, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org, Steve French <sfrench@samba.org>,
	Shyam Prasad N <nspmangalore@gmail.com>,
	Rohith Surabattula <rohiths.msft@gmail.com>,
	linux-cachefs@redhat.com
Subject: [RFC PATCH 49/53] cifs: Move cifs_loose_read_iter() and cifs_file_write_iter() to file.c
Date: Fri, 13 Oct 2023 17:04:18 +0100	[thread overview]
Message-ID: <20231013160423.2218093-50-dhowells@redhat.com> (raw)
In-Reply-To: <20231013160423.2218093-1-dhowells@redhat.com>

Move cifs_loose_read_iter() and cifs_file_write_iter() to file.c so that
they are colocated with similar functions rather than being split with
cifsfs.c.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Shyam Prasad N <nspmangalore@gmail.com>
cc: Rohith Surabattula <rohiths.msft@gmail.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
---
 fs/smb/client/cifsfs.c | 55 ------------------------------------------
 fs/smb/client/cifsfs.h |  2 ++
 fs/smb/client/file.c   | 53 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+), 55 deletions(-)

diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index 85799e9e0f4c..0c19b65206f6 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -982,61 +982,6 @@ cifs_smb3_do_mount(struct file_system_type *fs_type,
 	return root;
 }
 
-
-static ssize_t
-cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter)
-{
-	ssize_t rc;
-	struct inode *inode = file_inode(iocb->ki_filp);
-
-	if (iocb->ki_flags & IOCB_DIRECT)
-		return cifs_user_readv(iocb, iter);
-
-	rc = cifs_revalidate_mapping(inode);
-	if (rc)
-		return rc;
-
-	return generic_file_read_iter(iocb, iter);
-}
-
-static ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
-{
-	struct inode *inode = file_inode(iocb->ki_filp);
-	struct cifsInodeInfo *cinode = CIFS_I(inode);
-	ssize_t written;
-	int rc;
-
-	if (iocb->ki_filp->f_flags & O_DIRECT) {
-		written = cifs_user_writev(iocb, from);
-		if (written > 0 && CIFS_CACHE_READ(cinode)) {
-			cifs_zap_mapping(inode);
-			cifs_dbg(FYI,
-				 "Set no oplock for inode=%p after a write operation\n",
-				 inode);
-			cinode->oplock = 0;
-		}
-		return written;
-	}
-
-	written = cifs_get_writer(cinode);
-	if (written)
-		return written;
-
-	written = generic_file_write_iter(iocb, from);
-
-	if (CIFS_CACHE_WRITE(CIFS_I(inode)))
-		goto out;
-
-	rc = filemap_fdatawrite(inode->i_mapping);
-	if (rc)
-		cifs_dbg(FYI, "cifs_file_write_iter: %d rc on %p inode\n",
-			 rc, inode);
-
-out:
-	cifs_put_writer(cinode);
-	return written;
-}
-
 static loff_t cifs_llseek(struct file *file, loff_t offset, int whence)
 {
 	struct cifsFileInfo *cfile = file->private_data;
diff --git a/fs/smb/client/cifsfs.h b/fs/smb/client/cifsfs.h
index 41daebd220ff..24d5bac07f87 100644
--- a/fs/smb/client/cifsfs.h
+++ b/fs/smb/client/cifsfs.h
@@ -100,6 +100,8 @@ extern ssize_t cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to);
 extern ssize_t cifs_user_writev(struct kiocb *iocb, struct iov_iter *from);
 extern ssize_t cifs_direct_writev(struct kiocb *iocb, struct iov_iter *from);
 extern ssize_t cifs_strict_writev(struct kiocb *iocb, struct iov_iter *from);
+ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from);
+ssize_t cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter);
 extern int cifs_flock(struct file *pfile, int cmd, struct file_lock *plock);
 extern int cifs_lock(struct file *, int, struct file_lock *);
 extern int cifs_fsync(struct file *, loff_t, loff_t, int);
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 6c7b91728dd4..3112233c4835 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -4584,6 +4584,59 @@ ssize_t cifs_user_readv(struct kiocb *iocb, struct iov_iter *to)
 	return __cifs_readv(iocb, to, false);
 }
 
+ssize_t cifs_loose_read_iter(struct kiocb *iocb, struct iov_iter *iter)
+{
+	ssize_t rc;
+	struct inode *inode = file_inode(iocb->ki_filp);
+
+	if (iocb->ki_flags & IOCB_DIRECT)
+		return cifs_user_readv(iocb, iter);
+
+	rc = cifs_revalidate_mapping(inode);
+	if (rc)
+		return rc;
+
+	return generic_file_read_iter(iocb, iter);
+}
+
+ssize_t cifs_file_write_iter(struct kiocb *iocb, struct iov_iter *from)
+{
+	struct inode *inode = file_inode(iocb->ki_filp);
+	struct cifsInodeInfo *cinode = CIFS_I(inode);
+	ssize_t written;
+	int rc;
+
+	if (iocb->ki_filp->f_flags & O_DIRECT) {
+		written = cifs_user_writev(iocb, from);
+		if (written > 0 && CIFS_CACHE_READ(cinode)) {
+			cifs_zap_mapping(inode);
+			cifs_dbg(FYI,
+				 "Set no oplock for inode=%p after a write operation\n",
+				 inode);
+			cinode->oplock = 0;
+		}
+		return written;
+	}
+
+	written = cifs_get_writer(cinode);
+	if (written)
+		return written;
+
+	written = generic_file_write_iter(iocb, from);
+
+	if (CIFS_CACHE_WRITE(CIFS_I(inode)))
+		goto out;
+
+	rc = filemap_fdatawrite(inode->i_mapping);
+	if (rc)
+		cifs_dbg(FYI, "cifs_file_write_iter: %d rc on %p inode\n",
+			 rc, inode);
+
+out:
+	cifs_put_writer(cinode);
+	return written;
+}
+
 ssize_t
 cifs_strict_readv(struct kiocb *iocb, struct iov_iter *to)
 {

