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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>,
	Eric Van Hensbergen <ericvh@kernel.org>,
	Ilya Dryomov <idryomov@gmail.com>,
	Christian Brauner <christian@brauner.io>,
	linux-cachefs@redhat.com,
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	linux-nfs@vger.kernel.org,
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Subject: [PATCH v5 20/40] netfs: Add a hook to allow tell the netfs to update its i_size
Date: Thu, 21 Dec 2023 13:23:15 +0000
Message-ID: <20231221132400.1601991-21-dhowells@redhat.com>
In-Reply-To: <20231221132400.1601991-1-dhowells@redhat.com>
References: <20231221132400.1601991-1-dhowells@redhat.com>
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Add a hook for netfslib's write helpers to call to tell the network
filesystem that it should update its i_size.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
---
 include/linux/netfs.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index d08bd37bc3ce..f87193fa0f16 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -243,6 +243,7 @@ struct netfs_request_ops {
 	void (*free_request)(struct netfs_io_request *rreq);
 	void (*free_subrequest)(struct netfs_io_subrequest *rreq);
 
+	/* Read request handling */
 	void (*expand_readahead)(struct netfs_io_request *rreq);
 	bool (*clamp_length)(struct netfs_io_subrequest *subreq);
 	void (*issue_read)(struct netfs_io_subrequest *subreq);
@@ -250,6 +251,9 @@ struct netfs_request_ops {
 	int (*check_write_begin)(struct file *file, loff_t pos, unsigned len,
 				 struct folio **foliop, void **_fsdata);
 	void (*done)(struct netfs_io_request *rreq);
+
+	/* Modification handling */
+	void (*update_i_size)(struct inode *inode, loff_t i_size);
 };
 
 /*