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authorHugh Dickins <hughd@google.com>2013-02-07 12:27:03 +1100
committerStephen Rothwell <sfr@canb.auug.org.au>2013-02-14 15:25:40 +1100
commit000ca3c2c945cc2c51d3f502003464cc1a087a0e (patch)
tree18dc456382324a74f5b3b549cc4c66659d74155d /include/linux
parentca9640c7a69f8c95061604fe2c080c7328e07aa7 (diff)
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>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/migrate.h14
1 files changed, 6 insertions, 8 deletions
diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 1e9f627967a3..a405d3dc0f61 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -40,11 +40,9 @@ extern void putback_movable_pages(struct list_head *l);
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 @@ extern int migrate_huge_page_move_mapping(struct address_space *mapping,
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; }