[PATCH v4 20/39] netfs: Add a hook to allow tell the netfs to update its i_size

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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@xxxxxxxxxx>
cc: Jeff Layton <jlayton@xxxxxxxxxx>
cc: linux-cachefs@xxxxxxxxxx
cc: linux-fsdevel@xxxxxxxxxxxxxxx
cc: linux-mm@xxxxxxxxx
 include/linux/netfs.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index fce7a5a86e8e..a14af93efccf 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -245,6 +245,7 @@ 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);
@@ -252,6 +253,9 @@ 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);

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