| Date | Wed, 26 Oct 2022 10:31:45 -0700 | From | Isaku Yamahata <> | Subject | Re: [PATCH v9 1/8] mm: Introduce memfd_restricted system call to create restricted user memory |
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On Tue, Oct 25, 2022 at 11:13:37PM +0800, Chao Peng <chao.p.peng@linux.intel.com> wrote:
> +int restrictedmem_get_page(struct file *file, pgoff_t offset, > + struct page **pagep, int *order) > +{ > + struct restrictedmem_data *data = file->f_mapping->private_data; > + struct file *memfd = data->memfd; > + struct page *page; > + int ret; > + > + ret = shmem_getpage(file_inode(memfd), offset, &page, SGP_WRITE);
shmem_getpage() was removed. https://lkml.kernel.org/r/20220902194653.1739778-34-willy@infradead.org
I needed the following fix to compile.
thanks,
diff --git a/mm/restrictedmem.c b/mm/restrictedmem.c index e5bf8907e0f8..4694dd5609d6 100644 --- a/mm/restrictedmem.c +++ b/mm/restrictedmem.c @@ -231,13 +231,15 @@ int restrictedmem_get_page(struct file *file, pgoff_t offset, { struct restrictedmem_data *data = file->f_mapping->private_data; struct file *memfd = data->memfd; + struct folio *folio = NULL; struct page *page; int ret; - ret = shmem_getpage(file_inode(memfd), offset, &page, SGP_WRITE); + ret = shmem_get_folio(file_inode(memfd), offset, &folio, SGP_WRITE); if (ret) return ret; + page = folio_file_page(folio, offset); *pagep = page; if (order) *order = thp_order(compound_head(page)); -- Isaku Yamahata <isaku.yamahata@gmail.com>
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