mm: remove offlining arg to migrate_pages
No functional change, but the only purpose of the offlining argument to
migrate_pages() etc, was to ensure that __unmap_and_move() could migrate a
KSM page for memory hotremove (which took ksm_thread_mutex) but not for
other callers. Now all cases are safe, remove the arg.
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Petr Holasek <pholasek@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Izik Eidus <izik.eidus@ravellosystems.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 1e9f627..a405d3dc 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -40,11 +40,9 @@
extern int migrate_page(struct address_space *,
struct page *, struct page *, enum migrate_mode);
extern int migrate_pages(struct list_head *l, new_page_t x,
- unsigned long private, bool offlining,
- enum migrate_mode mode, int reason);
+ unsigned long private, enum migrate_mode mode, int reason);
extern int migrate_huge_page(struct page *, new_page_t x,
- unsigned long private, bool offlining,
- enum migrate_mode mode);
+ unsigned long private, enum migrate_mode mode);
extern int fail_migrate_page(struct address_space *,
struct page *, struct page *);
@@ -62,11 +60,11 @@
static inline void putback_lru_pages(struct list_head *l) {}
static inline void putback_movable_pages(struct list_head *l) {}
static inline int migrate_pages(struct list_head *l, new_page_t x,
- unsigned long private, bool offlining,
- enum migrate_mode mode, int reason) { return -ENOSYS; }
+ unsigned long private, enum migrate_mode mode, int reason)
+ { return -ENOSYS; }
static inline int migrate_huge_page(struct page *page, new_page_t x,
- unsigned long private, bool offlining,
- enum migrate_mode mode) { return -ENOSYS; }
+ unsigned long private, enum migrate_mode mode)
+ { return -ENOSYS; }
static inline int migrate_prep(void) { return -ENOSYS; }
static inline int migrate_prep_local(void) { return -ENOSYS; }