linux-ext4 - [RFC 3/3] ext2: Enable large folio support

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Date: Tue, 21 Nov 2023 00:35:21 +0530
From: "Ritesh Harjani (IBM)" <ritesh.list@...il.com>
To: linux-ext4@...r.kernel.org
Cc: Jan Kara <jack@...e.cz>,
	linux-fsdevel@...r.kernel.org,
	"Ritesh Harjani (IBM)" <ritesh.list@...il.com>
Subject: [RFC 3/3] ext2: Enable large folio support

Now that ext2 regular file buffered-io path is converted to use iomap,
we can also enable large folio support for ext2.

Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@...il.com>
---
 fs/ext2/inode.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index b6224d94a7dd..ad04da5ed6bd 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -1425,10 +1425,12 @@ void ext2_set_file_ops(struct inode *inode)
 {
 	inode->i_op = &ext2_file_inode_operations;
 	inode->i_fop = &ext2_file_operations;
-	if (IS_DAX(inode))
+	if (IS_DAX(inode)) {
 		inode->i_mapping->a_ops = &ext2_dax_aops;
-	else
+	} else {
 		inode->i_mapping->a_ops = &ext2_file_aops;
+		mapping_set_large_folios(inode->i_mapping);
+	}
 }
 
 struct inode *ext2_iget (struct super_block *sb, unsigned long ino)
-- 
2.41.0