diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 8083404f4cbc..c5e77e13bfdc 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -3140,6 +3140,7 @@ 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_folio_pages; inode->i_fop = &fuse_file_operations; inode->i_data.a_ops = &fuse_file_aops; @@ -3155,4 +3156,18 @@ void fuse_init_file_inode(struct inode *inode, unsigned int flags) if (IS_ENABLED(CONFIG_FUSE_DAX)) fuse_dax_inode_init(inode, flags); + + if (FUSE_IS_DAX(inode)) + return; + + /* + * A folio is never split across requests so cap the order so that one + * always fits in a single request. + */ + max_folio_pages = min3(fc->max_write >> PAGE_SHIFT, + fc->max_read >> PAGE_SHIFT, fc->max_pages); + + if (max_folio_pages) + mapping_set_folio_order_range(inode->i_mapping, 0, + ilog2(max_folio_pages)); }