9p: Enable multipage folios

dhowells · martinetd · commit 1325e4a91a40 · 2024-09-23T05:51:27.000+09:00
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 &lt;dhowells@redhat.com&gt;
cc: Eric Van Hensbergen &lt;ericvh@kernel.org&gt;
cc: Latchesar Ionkov &lt;lucho@ionkov.net&gt;
cc: Dominique Martinet &lt;asmadeus@codewreck.org&gt;
cc: Christian Schoenebeck &lt;linux_oss@crudebyte.com&gt;
cc: Jeff Layton &lt;jlayton@kernel.org&gt;
cc: Matthew Wilcox &lt;willy@infradead.org&gt;
cc: v9fs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
Message-ID: &lt;20240620173137.610345-7-dhowells@redhat.com&gt;
Signed-off-by: Dominique Martinet &lt;asmadeus@codewreck.org&gt;
diff --git 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:

Original file line number	Diff line number	Diff line change
`@@ -295,6 +295,7 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,`
`295`	`295`	`inode->i_op = &v9fs_file_inode_operations;`
`296`	`296`	`inode->i_fop = &v9fs_file_operations;`
`297`	`297`	`}`
	`298`	`+ mapping_set_large_folios(inode->i_mapping);`
`298`	`299`
`299`	`300`	`break;`
`300`	`301`	`case S_IFLNK:`