secretmem: Remove isolate_page

The isolate_page operation is never called for filesystems, only
for device drivers which call SetPageMovable.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
This commit is contained in:
Matthew Wilcox (Oracle) 2022-06-07 15:37:50 -04:00
parent 37ce0b319b
commit 81218f80a7

View file

@ -133,11 +133,6 @@ static const struct file_operations secretmem_fops = {
.mmap = secretmem_mmap,
};
static bool secretmem_isolate_page(struct page *page, isolate_mode_t mode)
{
return false;
}
static int secretmem_migratepage(struct address_space *mapping,
struct page *newpage, struct page *page,
enum migrate_mode mode)
@ -155,7 +150,6 @@ const struct address_space_operations secretmem_aops = {
.dirty_folio = noop_dirty_folio,
.free_folio = secretmem_free_folio,
.migratepage = secretmem_migratepage,
.isolate_page = secretmem_isolate_page,
};
static int secretmem_setattr(struct user_namespace *mnt_userns,