nbd: set SOCK_MEMALLOC for access to PFMEMALLOC reserves

[deliverable/linux.git] / mm / internal.h

diff --git a/mm/internal.h b/mm/internal.h
index 4194ab9dc19b412aa8e15f1b89612aa2595f0c9f..3314f79d775a5f90c84e3250d8b93b7bd6f99933 100644 (file)
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -94,9 +94,6 @@ extern void putback_lru_page(struct page *page);
 /*
  * in mm/page_alloc.c
  */
-extern void set_pageblock_migratetype(struct page *page, int migratetype);
-extern int move_freepages_block(struct zone *zone, struct page *page,
-                               int migratetype);
 extern void __free_pages_bootmem(struct page *page, unsigned int order);
 extern void prep_compound_page(struct page *page, unsigned long order);
 #ifdef CONFIG_MEMORY_FAILURE
@@ -104,7 +101,6 @@ extern bool is_free_buddy_page(struct page *page);
 #endif
 
 #if defined CONFIG_COMPACTION || defined CONFIG_CMA
-#include <linux/compaction.h>
 
 /*
  * in mm/compaction.c
@@ -122,15 +118,18 @@ struct compact_control {
        unsigned long nr_freepages;     /* Number of isolated free pages */
        unsigned long nr_migratepages;  /* Number of pages to migrate */
        unsigned long free_pfn;         /* isolate_freepages search base */
+       unsigned long start_free_pfn;   /* where we started the search */
        unsigned long migrate_pfn;      /* isolate_migratepages search base */
-       enum compact_mode mode;         /* Compaction mode */
+       bool sync;                      /* Synchronous migration */
+       bool wrapped;                   /* Order > 0 compactions are
+                                          incremental, once free_pfn
+                                          and migrate_pfn meet, we restart
+                                          from the top of the zone;
+                                          remember we wrapped around. */
 
        int order;                      /* order a direct compactor needs */
        int migratetype;                /* MOVABLE, RECLAIMABLE etc */
        struct zone *zone;
-
-       /* Number of UNMOVABLE destination pageblocks skipped during scan */
-       unsigned long nr_pageblocks_skipped;
 };
 
 unsigned long
@@ -350,3 +349,9 @@ extern u64 hwpoison_filter_flags_mask;
 extern u64 hwpoison_filter_flags_value;
 extern u64 hwpoison_filter_memcg;
 extern u32 hwpoison_filter_enable;
+
+extern unsigned long vm_mmap_pgoff(struct file *, unsigned long,
+        unsigned long, unsigned long,
+        unsigned long, unsigned long);
+
+extern void set_pageblock_order(void);