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From: Kairui Song <ryncsn@gmail.com>
To: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
	"Huang, Ying" <ying.huang@intel.com>,
	Matthew Wilcox <willy@infradead.org>,
	Chris Li <chrisl@kernel.org>,
	Barry Song <v-songbaohua@oppo.com>,
	Ryan Roberts <ryan.roberts@arm.com>,
	Neil Brown <neilb@suse.de>,
	Minchan Kim <minchan@kernel.org>,
	Hugh Dickins <hughd@google.com>,
	David Hildenbrand <david@redhat.com>,
	Yosry Ahmed <yosryahmed@google.com>,
	linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Kairui Song <kasong@tencent.com>,
	David Howells <dhowells@redhat.com>,
	Jeff Layton <jlayton@kernel.org>,
	netfs@lists.linux.dev
Subject: [PATCH v4 07/12] netfs: drop usage of folio_file_pos
Date: Thu,  2 May 2024 16:46:04 +0800
Message-ID: <20240502084609.28376-8-ryncsn@gmail.com>
In-Reply-To: <20240502084609.28376-1-ryncsn@gmail.com>
References: <20240502084609.28376-1-ryncsn@gmail.com>
Reply-To: Kairui Song <kasong@tencent.com>
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From: Kairui Song <kasong@tencent.com>

folio_file_pos is only needed for mixed usage of page cache and
swap cache, for pure page cache usage, the caller can just use
folio_pos instead.

It can't be a swap cache page here. Swap mapping may only call into
fs through swap_rw and that is not supported for netfs. So just drop
it and use folio_pos instead.

Signed-off-by: Kairui Song <kasong@tencent.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Layton <jlayton@kernel.org>
Cc: netfs@lists.linux.dev
---
 fs/netfs/buffered_read.c  | 4 ++--
 fs/netfs/buffered_write.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/netfs/buffered_read.c b/fs/netfs/buffered_read.c
index 3298c29b5548..d3687d81229f 100644
--- a/fs/netfs/buffered_read.c
+++ b/fs/netfs/buffered_read.c
@@ -255,7 +255,7 @@ int netfs_read_folio(struct file *file, struct folio *folio)
 	_enter("%lx", folio->index);
 
 	rreq = netfs_alloc_request(mapping, file,
-				   folio_file_pos(folio), folio_size(folio),
+				   folio_pos(folio), folio_size(folio),
 				   NETFS_READPAGE);
 	if (IS_ERR(rreq)) {
 		ret = PTR_ERR(rreq);
@@ -454,7 +454,7 @@ int netfs_write_begin(struct netfs_inode *ctx,
 	}
 
 	rreq = netfs_alloc_request(mapping, file,
-				   folio_file_pos(folio), folio_size(folio),
+				   folio_pos(folio), folio_size(folio),
 				   NETFS_READ_FOR_WRITE);
 	if (IS_ERR(rreq)) {
 		ret = PTR_ERR(rreq);
diff --git a/fs/netfs/buffered_write.c b/fs/netfs/buffered_write.c
index 9a0d32e4b422..859a22a740c3 100644
--- a/fs/netfs/buffered_write.c
+++ b/fs/netfs/buffered_write.c
@@ -63,7 +63,7 @@ static enum netfs_how_to_modify netfs_how_to_modify(struct netfs_inode *ctx,
 						    bool maybe_trouble)
 {
 	struct netfs_folio *finfo = netfs_folio_info(folio);
-	loff_t pos = folio_file_pos(folio);
+	loff_t pos = folio_pos(folio);
 
 	_enter("");
 
-- 
2.44.0