unsigned long addr, unsigned long end,
struct zap_details *details);
-extern unsigned int __do_page_cache_readahead(struct address_space *mapping,
- struct file *filp, pgoff_t offset, unsigned long nr_to_read,
+void force_page_cache_readahead(struct address_space *, struct file *,
+ pgoff_t index, unsigned long nr_to_read);
+void __do_page_cache_readahead(struct address_space *, struct file *,
+ pgoff_t index, unsigned long nr_to_read,
unsigned long lookahead_size);
/*
* Submit IO for the read-ahead request in file_ra_state.
*/
-static inline unsigned long ra_submit(struct file_ra_state *ra,
+static inline void ra_submit(struct file_ra_state *ra,
struct address_space *mapping, struct file *filp)
{
- return __do_page_cache_readahead(mapping, filp,
- ra->start, ra->size, ra->async_size);
+ __do_page_cache_readahead(mapping, filp,
+ ra->start, ra->size, ra->async_size);
}
/**
* between functions involved in allocations, including the alloc_pages*
* family of functions.
*
- * nodemask, migratetype and high_zoneidx are initialized only once in
+ * nodemask, migratetype and highest_zoneidx are initialized only once in
* __alloc_pages_nodemask() and then never change.
*
- * zonelist, preferred_zone and classzone_idx are set first in
+ * zonelist, preferred_zone and highest_zoneidx are set first in
* __alloc_pages_nodemask() for the fast path, and might be later changed
- * in __alloc_pages_slowpath(). All other functions pass the whole strucure
+ * in __alloc_pages_slowpath(). All other functions pass the whole structure
* by a const pointer.
*/
struct alloc_context {
nodemask_t *nodemask;
struct zoneref *preferred_zoneref;
int migratetype;
- enum zone_type high_zoneidx;
+
+ /*
+ * highest_zoneidx represents highest usable zone index of
+ * the allocation request. Due to the nature of the zone,
+ * memory on lower zone than the highest_zoneidx will be
+ * protected by lowmem_reserve[highest_zoneidx].
+ *
+ * highest_zoneidx is also used by reclaim/compaction to limit
+ * the target zone since higher zone than this index cannot be
+ * usable for this allocation request.
+ */
+ enum zone_type highest_zoneidx;
bool spread_dirty_pages;
};
-#define ac_classzone_idx(ac) zonelist_zone_idx(ac->preferred_zoneref)
-
/*
* Locate the struct page for both the matching buddy in our
* pair (buddy1) and the combined O(n+1) page they form (page).
int order; /* order a direct compactor needs */
int migratetype; /* migratetype of direct compactor */
const unsigned int alloc_flags; /* alloc flags of a direct compactor */
- const int classzone_idx; /* zone index of a direct compactor */
+ const int highest_zoneidx; /* zone index of a direct compactor */
enum migrate_mode mode; /* Async or sync migration mode */
bool ignore_skip_hint; /* Scan blocks even if marked skip */
bool no_set_skip_hint; /* Don't mark blocks for skipping */
bool ignore_block_suitable; /* Scan blocks considered unsuitable */
bool direct_compaction; /* False from kcompactd or /proc/... */
+ bool proactive_compaction; /* kcompactd proactive compaction */
bool whole_zone; /* Whole zone should/has been scanned */
bool contended; /* Signal lock or sched contention */
bool rescan; /* Rescanning the same pageblock */
}
/*
- * must be called with vma's mmap_sem held for read or write, and page locked.
+ * must be called with vma's mmap_lock held for read or write, and page locked.
*/
extern void mlock_vma_page(struct page *page);
extern unsigned int munlock_vma_page(struct page *page);
static inline void mlock_migrate_page(struct page *newpage, struct page *page)
{
if (TestClearPageMlocked(page)) {
- int nr_pages = hpage_nr_pages(page);
+ int nr_pages = thp_nr_pages(page);
/* Holding pmd lock, no change in irq context: __mod is safe */
__mod_zone_page_state(page_zone(page), NR_MLOCK, -nr_pages);
unsigned long start, end;
start = __vma_address(page, vma);
- end = start + PAGE_SIZE * (hpage_nr_pages(page) - 1);
+ end = start + thp_size(page) - PAGE_SIZE;
/* page should be within @vma mapping range */
VM_BUG_ON_VMA(end < vma->vm_start || start >= vma->vm_end, vma);
/*
* FAULT_FLAG_RETRY_NOWAIT means we don't want to wait on page locks or
- * anything, so we only pin the file and drop the mmap_sem if only
+ * anything, so we only pin the file and drop the mmap_lock if only
* FAULT_FLAG_ALLOW_RETRY is set, while this is the first attempt.
*/
if (fault_flag_allow_retry_first(flags) &&
!(flags & FAULT_FLAG_RETRY_NOWAIT)) {
fpin = get_file(vmf->vma->vm_file);
- up_read(&vmf->vma->vm_mm->mmap_sem);
+ mmap_read_unlock(vmf->vma->vm_mm);
}
return fpin;
}
unsigned long, unsigned long);
extern void set_pageblock_order(void);
-unsigned long reclaim_clean_pages_from_list(struct zone *zone,
+unsigned int reclaim_clean_pages_from_list(struct zone *zone,
struct list_head *page_list);
/* The ALLOC_WMARK bits are used as an index to zone->watermark */
#define ALLOC_WMARK_MIN WMARK_MIN
}
void setup_zone_pageset(struct zone *zone);
-extern struct page *alloc_new_node_page(struct page *page, unsigned long node);
+
+struct migration_target_control {
+ int nid; /* preferred node id */
+ nodemask_t *nmask;
+ gfp_t gfp_mask;
+};
+
#endif /* __MM_INTERNAL_H */
projects / linux-2.6-microblaze.git / blobdiff