linux-kernel - [PATCH] 9p: Enable multipage folios

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Date: Wed, 22 May 2024 22:12:14 +0100
From: David Howells <dhowells@...hat.com>
To: Eric Van Hensbergen <ericvh@...nel.org>,
    Latchesar Ionkov <lucho@...kov.net>,
    Dominique Martinet <asmadeus@...ewreck.org>
cc: dhowells@...hat.com, Christian Schoenebeck <linux_oss@...debyte.com>,
    Jeff Layton <jlayton@...nel.org>,
    Matthew Wilcox <willy@...radead.org>, v9fs@...ts.linux.dev,
    netfs@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
    linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: [PATCH] 9p: Enable multipage folios

    
Enable support for multipage folios on the 9P filesystem.  This is all
handled through netfslib and is already enabled on AFS and CIFS also.

Signed-off-by: David Howells <dhowells@...hat.com>
cc: Eric Van Hensbergen <ericvh@...nel.org>
cc: Latchesar Ionkov <lucho@...kov.net>
cc: Dominique Martinet <asmadeus@...ewreck.org>
cc: Christian Schoenebeck <linux_oss@...debyte.com>
cc: Jeff Layton <jlayton@...nel.org>
cc: Matthew Wilcox <willy@...radead.org>
cc: v9fs@...ts.linux.dev
cc: netfs@...ts.linux.dev
cc: linux-fsdevel@...r.kernel.org
cc: linux-mm@...ck.org
---
 fs/9p/vfs_inode.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 7a3308d77606..8c9a896d691e 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -295,6 +295,7 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
 			inode->i_op = &v9fs_file_inode_operations;
 			inode->i_fop = &v9fs_file_operations;
 		}
+		mapping_set_large_folios(inode->i_mapping);
 
 		break;
 	case S_IFLNK: