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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>,
	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 41/53] netfs: Rearrange netfs_io_subrequest to put request pointer first
Date: Fri, 13 Oct 2023 17:04:10 +0100	[thread overview]
Message-ID: <20231013160423.2218093-42-dhowells@redhat.com> (raw)
In-Reply-To: <20231013160423.2218093-1-dhowells@redhat.com>

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 for cifs.

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(-)

diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index c416645649e1..ff4f86ae64e4 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -209,8 +209,8 @@ 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 */


  parent reply	other threads:[~2023-10-13 16:07 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-13 16:03 [RFC PATCH 00/53] netfs, afs, cifs: Delegate high-level I/O to netfslib David Howells
2023-10-13 16:03 ` [RFC PATCH 01/53] netfs: Add a procfile to list in-progress requests David Howells
2023-10-13 16:03 ` [RFC PATCH 02/53] netfs: Track the fpos above which the server has no data David Howells
2023-10-13 16:03 ` [RFC PATCH 03/53] netfs: Note nonblockingness in the netfs_io_request struct David Howells
2023-10-13 16:03 ` [RFC PATCH 04/53] netfs: Allow the netfs to make the io (sub)request alloc larger David Howells
2023-10-13 16:03 ` [RFC PATCH 05/53] netfs: Add a ->free_subrequest() op David Howells
2023-10-13 16:03 ` [RFC PATCH 06/53] afs: Don't use folio->private to record partial modification David Howells
2023-10-13 16:03 ` [RFC PATCH 07/53] netfs: Provide invalidate_folio and release_folio calls David Howells
2023-10-16 15:50   ` Jeff Layton
2023-10-13 16:03 ` [RFC PATCH 08/53] netfs: Add rsize to netfs_io_request David Howells
2023-10-16 15:54   ` Jeff Layton
2023-10-16 16:19   ` David Howells
2023-10-13 16:03 ` [RFC PATCH 09/53] netfs: Implement unbuffered/DIO vs buffered I/O locking David Howells
2023-10-16 15:56   ` Jeff Layton
2023-10-16 16:09   ` David Howells
2023-10-13 16:03 ` [RFC PATCH 10/53] netfs: Add iov_iters to (sub)requests to describe various buffers David Howells
2023-10-13 16:03 ` [RFC PATCH 11/53] netfs: Add support for DIO buffering David Howells
2023-10-16 16:10   ` Jeff Layton
2023-11-17 20:20   ` David Howells
2023-10-13 16:03 ` [RFC PATCH 12/53] netfs: Provide tools to create a buffer in an xarray David Howells
2023-10-13 17:27   ` Matthew Wilcox
2023-10-18 15:03   ` Jeff Layton
2023-11-17 20:11   ` David Howells
2023-10-13 16:03 ` [RFC PATCH 13/53] netfs: Add bounce buffering support David Howells
2023-10-13 16:03 ` [RFC PATCH 14/53] netfs: Add func to calculate pagecount/size-limited span of an iterator David Howells
2023-10-13 16:03 ` [RFC PATCH 15/53] netfs: Limit subrequest by size or number of segments David Howells
2023-10-13 16:03 ` [RFC PATCH 16/53] netfs: Export netfs_put_subrequest() and some tracepoints David Howells
2023-10-13 16:03 ` [RFC PATCH 17/53] netfs: Extend the netfs_io_*request structs to handle writes David Howells
2023-10-13 16:03 ` [RFC PATCH 18/53] netfs: Add a hook to allow tell the netfs to update its i_size David Howells
2023-10-13 16:03 ` [RFC PATCH 19/53] netfs: Make netfs_put_request() handle a NULL pointer David Howells
2023-10-13 16:03 ` [RFC PATCH 20/53] fscache: Add a function to begin an cache op from a netfslib request David Howells
2023-10-13 16:03 ` [RFC PATCH 21/53] netfs: Make the refcounting of netfs_begin_read() easier to use David Howells
2023-10-13 16:03 ` [RFC PATCH 22/53] netfs: Prep to use folio->private for write grouping and streaming write David Howells
2023-10-13 16:03 ` [RFC PATCH 23/53] netfs: Dispatch write requests to process a writeback slice David Howells
2023-10-13 16:03 ` [RFC PATCH 24/53] netfs: Provide func to copy data to pagecache for buffered write David Howells
2023-10-13 16:03 ` [RFC PATCH 25/53] netfs: Make netfs_read_folio() handle streaming-write pages David Howells
2023-10-13 16:03 ` [RFC PATCH 26/53] netfs: Allocate multipage folios in the writepath David Howells
2023-10-13 16:03 ` [RFC PATCH 27/53] netfs: Implement support for unbuffered/DIO read David Howells
2023-10-13 16:03 ` [RFC PATCH 28/53] netfs: Implement unbuffered/DIO write support David Howells
2023-10-13 16:03 ` [RFC PATCH 29/53] netfs: Implement buffered write API David Howells
2023-10-13 16:03 ` [RFC PATCH 30/53] netfs: Allow buffered shared-writeable mmap through netfs_page_mkwrite() David Howells
2023-10-13 16:04 ` [RFC PATCH 31/53] netfs: Provide netfs_file_read_iter() David Howells
2023-10-13 16:04 ` [RFC PATCH 32/53] netfs: Provide a writepages implementation David Howells
2023-10-13 16:04 ` [RFC PATCH 33/53] netfs: Provide minimum blocksize parameter David Howells
2023-10-13 16:04 ` [RFC PATCH 34/53] netfs: Make netfs_skip_folio_read() take account of blocksize David Howells
2023-10-13 16:04 ` [RFC PATCH 35/53] netfs: Perform content encryption David Howells
2023-10-13 16:04 ` [RFC PATCH 36/53] netfs: Decrypt encrypted content David Howells
2023-10-13 16:04 ` [RFC PATCH 37/53] netfs: Support decryption on ubuffered/DIO read David Howells
2023-10-13 16:04 ` [RFC PATCH 38/53] netfs: Support encryption on Unbuffered/DIO write David Howells
2023-10-13 16:04 ` [RFC PATCH 39/53] netfs: Provide a launder_folio implementation David Howells
2023-10-13 16:04 ` [RFC PATCH 40/53] netfs: Implement a write-through caching option David Howells
2023-10-13 16:04 ` David Howells [this message]
2023-10-13 16:04 ` [RFC PATCH 42/53] afs: Use the netfs write helpers David Howells
2023-10-13 16:04 ` [RFC PATCH 43/53] cifs: Replace cifs_readdata with a wrapper around netfs_io_subrequest David Howells
2023-10-13 16:04 ` [RFC PATCH 44/53] cifs: Share server EOF pos with netfslib David Howells
2023-10-13 16:04 ` [RFC PATCH 45/53] cifs: Replace cifs_writedata with a wrapper around netfs_io_subrequest David Howells
2023-10-13 16:04 ` [RFC PATCH 46/53] cifs: Use more fields from netfs_io_subrequest David Howells
2023-10-13 16:04 ` [RFC PATCH 47/53] cifs: Make wait_mtu_credits take size_t args David Howells
2023-10-13 16:04 ` [RFC PATCH 48/53] cifs: Implement netfslib hooks David Howells
2023-10-13 16:04 ` [RFC PATCH 49/53] cifs: Move cifs_loose_read_iter() and cifs_file_write_iter() to file.c David Howells
2023-10-13 16:04 ` [RFC PATCH 50/53] cifs: Cut over to using netfslib David Howells
2023-10-13 16:04 ` [RFC PATCH 51/53] cifs: Remove some code that's no longer used, part 1 David Howells
2023-10-13 16:04 ` [RFC PATCH 52/53] cifs: Remove some code that's no longer used, part 2 David Howells
2023-10-13 16:04 ` [RFC PATCH 53/53] cifs: Remove some code that's no longer used, part 3 David Howells

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