[PATCH v2 12/12] fuse: enable large folios

[Joanne Koong <joannelkoong@gmail.com>]

Enable folios larger than one page size.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
Reviewed-by: Josef Bacik <josef@toxicpanda.com>
---
 fs/fuse/file.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 487e68b59e1a..b4c4f3575c42 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -3164,12 +3164,17 @@ void fuse_init_file_inode(struct inode *inode, unsigned int flags)
 {
 	struct fuse_inode *fi = get_fuse_inode(inode);
 	struct fuse_conn *fc = get_fuse_conn(inode);
+	unsigned int max_pages, max_order;
 
 	inode->i_fop = &fuse_file_operations;
 	inode->i_data.a_ops = &fuse_file_aops;
 	if (fc->writeback_cache)
 		mapping_set_writeback_may_block(&inode->i_data);
 
+	max_pages = min(fc->max_write >> PAGE_SHIFT, fc->max_pages);
+	max_order = ilog2(max_pages);
+	mapping_set_folio_order_range(inode->i_mapping, 0, max_order);
+
 	INIT_LIST_HEAD(&fi->write_files);
 	INIT_LIST_HEAD(&fi->queued_writes);
 	fi->writectr = 0;
-- 
2.43.5