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[6/5] netfs: Rearrange netfs_io_subrequest to put request pointer first

Message ID 396881.1704296824@warthog.procyon.org.uk
State New
Headers show
Series netfs, cachefiles, 9p: Additional patches | expand

Commit Message

David Howells Jan. 3, 2024, 3:47 p.m. UTC 
netfs: Rearrange netfs_io_subrequest to put request pointer first

Rearrange the netfs_io_subrequest struct to put the netfs_io_request
pointer (rreq) first.  This then allows netfs_io_subrequest to be put in a
union with a pointer to a wrapper around netfs_io_request.  This will be
useful in the future for cifs and maybe ceph.

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
---
 include/linux/netfs.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index 852956aa3c4b..d3bac60fcd6f 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -204,8 +204,8 @@  struct netfs_cache_resources {
  * the pages it points to can be relied on to exist for the duration.
  */
 struct netfs_io_subrequest {
-	struct work_struct	work;
 	struct netfs_io_request *rreq;		/* Supervising I/O request */
+	struct work_struct	work;
 	struct list_head	rreq_link;	/* Link in rreq->subrequests */
 	struct iov_iter		io_iter;	/* Iterator for this subrequest */
 	loff_t			start;		/* Where to start the I/O */