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* [patch 1/2] mm, migration: add destination page freeing callback
@ 2014-05-01  0:45 ` David Rientjes
  0 siblings, 0 replies; 267+ messages in thread
From: David Rientjes @ 2014-05-01  0:45 UTC (permalink / raw)
  To: Andrew Morton
  Cc: Mel Gorman, Rik van Riel, Vlastimil Babka, Joonsoo Kim,
	Greg Thelen, Hugh Dickins, linux-kernel, linux-mm

Memory migration uses a callback defined by the caller to determine how to
allocate destination pages.  When migration fails for a source page, however, it 
frees the destination page back to the system.

This patch adds a memory migration callback defined by the caller to determine 
how to free destination pages.  If a caller, such as memory compaction, builds 
its own freelist for migration targets, this can reuse already freed memory 
instead of scanning additional memory.

If the caller provides a function to handle freeing of destination pages, it is 
called when page migration fails.  Otherwise, it may pass NULL and freeing back 
to the system will be handled as usual.  This patch introduces no functional 
change.

Signed-off-by: David Rientjes <rientjes@google.com>
---
 include/linux/migrate.h | 11 ++++++----
 mm/compaction.c         |  2 +-
 mm/memory-failure.c     |  4 ++--
 mm/memory_hotplug.c     |  2 +-
 mm/mempolicy.c          |  4 ++--
 mm/migrate.c            | 54 ++++++++++++++++++++++++++++++++-----------------
 mm/page_alloc.c         |  2 +-
 7 files changed, 50 insertions(+), 29 deletions(-)

diff --git a/include/linux/migrate.h b/include/linux/migrate.h
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -5,7 +5,9 @@
 #include <linux/mempolicy.h>
 #include <linux/migrate_mode.h>
 
-typedef struct page *new_page_t(struct page *, unsigned long private, int **);
+typedef struct page *new_page_t(struct page *page, unsigned long private,
+				int **reason);
+typedef void free_page_t(struct page *page, unsigned long private);
 
 /*
  * Return values from addresss_space_operations.migratepage():
@@ -38,7 +40,7 @@ enum migrate_reason {
 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,
+extern int migrate_pages(struct list_head *l, new_page_t new, free_page_t free,
 		unsigned long private, enum migrate_mode mode, int reason);
 
 extern int migrate_prep(void);
@@ -56,8 +58,9 @@ extern int migrate_page_move_mapping(struct address_space *mapping,
 #else
 
 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, enum migrate_mode mode, int reason)
+static inline int migrate_pages(struct list_head *l, new_page_t new,
+		free_page_t free, unsigned long private, enum migrate_mode mode,
+		int reason)
 	{ return -ENOSYS; }
 
 static inline int migrate_prep(void) { return -ENOSYS; }
diff --git a/mm/compaction.c b/mm/compaction.c
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1023,7 +1023,7 @@ static int compact_zone(struct zone *zone, struct compact_control *cc)
 		}
 
 		nr_migrate = cc->nr_migratepages;
-		err = migrate_pages(&cc->migratepages, compaction_alloc,
+		err = migrate_pages(&cc->migratepages, compaction_alloc, NULL,
 				(unsigned long)cc,
 				cc->sync ? MIGRATE_SYNC_LIGHT : MIGRATE_ASYNC,
 				MR_COMPACTION);
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1500,7 +1500,7 @@ static int soft_offline_huge_page(struct page *page, int flags)
 
 	/* Keep page count to indicate a given hugepage is isolated. */
 	list_move(&hpage->lru, &pagelist);
-	ret = migrate_pages(&pagelist, new_page, MPOL_MF_MOVE_ALL,
+	ret = migrate_pages(&pagelist, new_page, NULL, MPOL_MF_MOVE_ALL,
 				MIGRATE_SYNC, MR_MEMORY_FAILURE);
 	if (ret) {
 		pr_info("soft offline: %#lx: migration failed %d, type %lx\n",
@@ -1581,7 +1581,7 @@ static int __soft_offline_page(struct page *page, int flags)
 		inc_zone_page_state(page, NR_ISOLATED_ANON +
 					page_is_file_cache(page));
 		list_add(&page->lru, &pagelist);
-		ret = migrate_pages(&pagelist, new_page, MPOL_MF_MOVE_ALL,
+		ret = migrate_pages(&pagelist, new_page, NULL, MPOL_MF_MOVE_ALL,
 					MIGRATE_SYNC, MR_MEMORY_FAILURE);
 		if (ret) {
 			if (!list_empty(&pagelist)) {
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1332,7 +1332,7 @@ do_migrate_range(unsigned long start_pfn, unsigned long end_pfn)
 		 * alloc_migrate_target should be improooooved!!
 		 * migrate_pages returns # of failed pages.
 		 */
-		ret = migrate_pages(&source, alloc_migrate_target, 0,
+		ret = migrate_pages(&source, alloc_migrate_target, NULL, 0,
 					MIGRATE_SYNC, MR_MEMORY_HOTPLUG);
 		if (ret)
 			putback_movable_pages(&source);
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1028,7 +1028,7 @@ static int migrate_to_node(struct mm_struct *mm, int source, int dest,
 			flags | MPOL_MF_DISCONTIG_OK, &pagelist);
 
 	if (!list_empty(&pagelist)) {
-		err = migrate_pages(&pagelist, new_node_page, dest,
+		err = migrate_pages(&pagelist, new_node_page, NULL, dest,
 					MIGRATE_SYNC, MR_SYSCALL);
 		if (err)
 			putback_movable_pages(&pagelist);
@@ -1277,7 +1277,7 @@ static long do_mbind(unsigned long start, unsigned long len,
 		if (!list_empty(&pagelist)) {
 			WARN_ON_ONCE(flags & MPOL_MF_LAZY);
 			nr_failed = migrate_pages(&pagelist, new_vma_page,
-					(unsigned long)vma,
+					NULL, (unsigned long)vma,
 					MIGRATE_SYNC, MR_MEMPOLICY_MBIND);
 			if (nr_failed)
 				putback_movable_pages(&pagelist);
diff --git a/mm/migrate.c b/mm/migrate.c
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -938,8 +938,9 @@ out:
  * Obtain the lock on page, remove all ptes and migrate the page
  * to the newly allocated page in newpage.
  */
-static int unmap_and_move(new_page_t get_new_page, unsigned long private,
-			struct page *page, int force, enum migrate_mode mode)
+static int unmap_and_move(new_page_t get_new_page, free_page_t put_new_page,
+			unsigned long private, struct page *page, int force,
+			enum migrate_mode mode)
 {
 	int rc = 0;
 	int *result = NULL;
@@ -983,11 +984,12 @@ out:
 				page_is_file_cache(page));
 		putback_lru_page(page);
 	}
-	/*
-	 * Move the new page to the LRU. If migration was not successful
-	 * then this will free the page.
-	 */
-	putback_lru_page(newpage);
+
+	if (rc != MIGRATEPAGE_SUCCESS && put_new_page)
+		put_new_page(newpage, private);
+	else
+		putback_lru_page(newpage);
+
 	if (result) {
 		if (rc)
 			*result = rc;
@@ -1016,8 +1018,9 @@ out:
  * will wait in the page fault for migration to complete.
  */
 static int unmap_and_move_huge_page(new_page_t get_new_page,
-				unsigned long private, struct page *hpage,
-				int force, enum migrate_mode mode)
+				free_page_t put_new_page, unsigned long private,
+				struct page *hpage, int force,
+				enum migrate_mode mode)
 {
 	int rc = 0;
 	int *result = NULL;
@@ -1056,20 +1059,30 @@ static int unmap_and_move_huge_page(new_page_t get_new_page,
 	if (!page_mapped(hpage))
 		rc = move_to_new_page(new_hpage, hpage, 1, mode);
 
-	if (rc)
+	if (rc != MIGRATEPAGE_SUCCESS)
 		remove_migration_ptes(hpage, hpage);
 
 	if (anon_vma)
 		put_anon_vma(anon_vma);
 
-	if (!rc)
+	if (rc == MIGRATEPAGE_SUCCESS)
 		hugetlb_cgroup_migrate(hpage, new_hpage);
 
 	unlock_page(hpage);
 out:
 	if (rc != -EAGAIN)
 		putback_active_hugepage(hpage);
-	put_page(new_hpage);
+
+	/*
+	 * If migration was not successful and there's a freeing callback, use
+	 * it.  Otherwise, put_page() will drop the reference grabbed during
+	 * isolation.
+	 */
+	if (rc != MIGRATEPAGE_SUCCESS && put_new_page)
+		put_new_page(new_hpage, private);
+	else
+		put_page(new_hpage);
+
 	if (result) {
 		if (rc)
 			*result = rc;
@@ -1086,6 +1099,8 @@ out:
  * @from:		The list of pages to be migrated.
  * @get_new_page:	The function used to allocate free pages to be used
  *			as the target of the page migration.
+ * @put_new_page:	The function used to free target pages if migration
+ *			fails, or NULL if no special handling is necessary.
  * @private:		Private data to be passed on to get_new_page()
  * @mode:		The migration mode that specifies the constraints for
  *			page migration, if any.
@@ -1099,7 +1114,8 @@ out:
  * Returns the number of pages that were not migrated, or an error code.
  */
 int migrate_pages(struct list_head *from, new_page_t get_new_page,
-		unsigned long private, enum migrate_mode mode, int reason)
+		free_page_t put_new_page, unsigned long private,
+		enum migrate_mode mode, int reason)
 {
 	int retry = 1;
 	int nr_failed = 0;
@@ -1121,10 +1137,11 @@ int migrate_pages(struct list_head *from, new_page_t get_new_page,
 
 			if (PageHuge(page))
 				rc = unmap_and_move_huge_page(get_new_page,
-						private, page, pass > 2, mode);
+						put_new_page, private, page,
+						pass > 2, mode);
 			else
-				rc = unmap_and_move(get_new_page, private,
-						page, pass > 2, mode);
+				rc = unmap_and_move(get_new_page, put_new_page,
+						private, page, pass > 2, mode);
 
 			switch(rc) {
 			case -ENOMEM:
@@ -1273,7 +1290,7 @@ set_status:
 
 	err = 0;
 	if (!list_empty(&pagelist)) {
-		err = migrate_pages(&pagelist, new_page_node,
+		err = migrate_pages(&pagelist, new_page_node, NULL,
 				(unsigned long)pm, MIGRATE_SYNC, MR_SYSCALL);
 		if (err)
 			putback_movable_pages(&pagelist);
@@ -1729,7 +1746,8 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma,
 
 	list_add(&page->lru, &migratepages);
 	nr_remaining = migrate_pages(&migratepages, alloc_misplaced_dst_page,
-				     node, MIGRATE_ASYNC, MR_NUMA_MISPLACED);
+				     NULL, node, MIGRATE_ASYNC,
+				     MR_NUMA_MISPLACED);
 	if (nr_remaining) {
 		if (!list_empty(&migratepages)) {
 			list_del(&page->lru);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6215,7 +6215,7 @@ static int __alloc_contig_migrate_range(struct compact_control *cc,
 		cc->nr_migratepages -= nr_reclaimed;
 
 		ret = migrate_pages(&cc->migratepages, alloc_migrate_target,
-				    0, MIGRATE_SYNC, MR_CMA);
+				    NULL, 0, MIGRATE_SYNC, MR_CMA);
 	}
 	if (ret < 0) {
 		putback_movable_pages(&cc->migratepages);

^ permalink raw reply	[flat|nested] 267+ messages in thread

end of thread, other threads:[~2014-06-12 21:48 UTC | newest]

Thread overview: 267+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-05-01  0:45 [patch 1/2] mm, migration: add destination page freeing callback David Rientjes
2014-05-01  0:45 ` David Rientjes
2014-05-01  0:45 ` [patch 2/2] mm, compaction: return failed migration target pages back to freelist David Rientjes
2014-05-01  0:45   ` David Rientjes
2014-05-01  5:10   ` Naoya Horiguchi
2014-05-01 21:02     ` David Rientjes
2014-05-01 21:02       ` David Rientjes
2014-05-01  5:08 ` [patch 1/2] mm, migration: add destination page freeing callback Naoya Horiguchi
     [not found] ` <5361d71e.236ec20a.1b3d.ffffc8aeSMTPIN_ADDED_BROKEN@mx.google.com>
2014-05-01 21:02   ` David Rientjes
2014-05-01 21:02     ` David Rientjes
2014-05-01 21:35 ` [patch v2 1/4] " David Rientjes
2014-05-01 21:35   ` David Rientjes
2014-05-01 21:35   ` [patch v2 2/4] mm, compaction: return failed migration target pages back to freelist David Rientjes
2014-05-01 21:35     ` David Rientjes
2014-05-02 10:11     ` Mel Gorman
2014-05-02 10:11       ` Mel Gorman
2014-05-02 15:23     ` Vlastimil Babka
2014-05-02 15:23       ` Vlastimil Babka
2014-05-02 15:26       ` [PATCH] mm/compaction: do not count migratepages when unnecessary Vlastimil Babka
2014-05-06 21:18         ` Naoya Horiguchi
     [not found]         ` <1399411134-k43fsr0p@n-horiguchi@ah.jp.nec.com>
2014-05-07  9:33           ` Vlastimil Babka
2014-05-07  9:33             ` Vlastimil Babka
2014-05-02 15:27       ` [PATCH 2/2] mm/compaction: avoid rescanning pageblocks in isolate_freepages Vlastimil Babka
2014-05-02 15:27         ` Vlastimil Babka
2014-05-06 22:19         ` Naoya Horiguchi
     [not found]         ` <1399414778-xakujfb3@n-horiguchi@ah.jp.nec.com>
2014-05-07  9:22           ` Vlastimil Babka
2014-05-07  9:22             ` Vlastimil Babka
2014-05-02 15:29       ` [PATCH 1/2] mm/compaction: do not count migratepages when unnecessary Vlastimil Babka
2014-05-02 15:29         ` Vlastimil Babka
2014-05-01 21:35   ` [patch v2 3/4] mm, compaction: add per-zone migration pfn cache for async compaction David Rientjes
2014-05-01 21:35     ` David Rientjes
2014-05-05  9:34     ` Vlastimil Babka
2014-05-05  9:34       ` Vlastimil Babka
2014-05-05  9:51       ` David Rientjes
2014-05-05  9:51         ` David Rientjes
2014-05-05 14:24         ` Vlastimil Babka
2014-05-05 14:24           ` Vlastimil Babka
2014-05-06  0:29           ` David Rientjes
2014-05-06  0:29             ` David Rientjes
2014-05-06 11:52             ` Vlastimil Babka
2014-05-06 11:52               ` Vlastimil Babka
2014-05-01 21:35   ` [patch v2 4/4] mm, thp: do not perform sync compaction on pagefault David Rientjes
2014-05-01 21:35     ` David Rientjes
2014-05-02 10:22     ` Mel Gorman
2014-05-02 10:22       ` Mel Gorman
2014-05-02 11:22       ` David Rientjes
2014-05-02 11:22         ` David Rientjes
2014-05-02 11:58         ` Mel Gorman
2014-05-02 20:29           ` David Rientjes
2014-05-02 20:29             ` David Rientjes
2014-05-05 14:48             ` Vlastimil Babka
2014-05-05 14:48               ` Vlastimil Babka
2014-05-06  8:55             ` Mel Gorman
2014-05-06  8:55               ` Mel Gorman
2014-05-06 15:05               ` Vlastimil Babka
2014-05-06 15:05                 ` Vlastimil Babka
2014-05-02 10:10   ` [patch v2 1/4] mm, migration: add destination page freeing callback Mel Gorman
2014-05-07  2:22   ` [patch v3 1/6] " David Rientjes
2014-05-07  2:22     ` David Rientjes
2014-05-07  2:22     ` [patch v3 2/6] mm, compaction: return failed migration target pages back to freelist David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07 14:14       ` Naoya Horiguchi
2014-05-07 21:15       ` Andrew Morton
2014-05-07 21:15         ` Andrew Morton
2014-05-07 21:21         ` David Rientjes
2014-05-07 21:21           ` David Rientjes
2014-05-12  8:35           ` Vlastimil Babka
2014-05-12  8:35             ` Vlastimil Babka
2014-05-07 21:39         ` Greg Thelen
2014-05-07 21:39           ` Greg Thelen
2014-05-12  8:37           ` Vlastimil Babka
2014-05-12  8:37             ` Vlastimil Babka
2014-05-07  2:22     ` [patch v3 3/6] mm, compaction: add per-zone migration pfn cache for async compaction David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07  9:34       ` Vlastimil Babka
2014-05-07  9:34         ` Vlastimil Babka
2014-05-07 20:56       ` Naoya Horiguchi
2014-05-07  2:22     ` [patch v3 4/6] mm, compaction: embed migration mode in compact_control David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07  9:55       ` Vlastimil Babka
2014-05-07  9:55         ` Vlastimil Babka
2014-05-07 10:36         ` [patch v4 " David Rientjes
2014-05-07 10:36           ` David Rientjes
2014-05-09 22:03           ` Andrew Morton
2014-05-09 22:03             ` Andrew Morton
2014-05-07  2:22     ` [patch v3 5/6] mm, thp: avoid excessive compaction latency during fault David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07  9:39       ` Mel Gorman
2014-05-07  9:39         ` Mel Gorman
2014-05-08  5:30       ` [patch -mm] mm, thp: avoid excessive compaction latency during fault fix David Rientjes
2014-05-08  5:30         ` David Rientjes
2014-05-13 10:00         ` Vlastimil Babka
2014-05-13 10:00           ` Vlastimil Babka
2014-05-22  2:49           ` David Rientjes
2014-05-22  2:49             ` David Rientjes
2014-05-22  8:43             ` Vlastimil Babka
2014-05-22  8:43               ` Vlastimil Babka
2014-05-07  2:22     ` [patch v3 6/6] mm, compaction: terminate async compaction when rescheduling David Rientjes
2014-05-07  2:22       ` David Rientjes
2014-05-07  9:41       ` Mel Gorman
2014-05-07  9:41         ` Mel Gorman
2014-05-07 12:09       ` [PATCH v2 1/2] mm/compaction: do not count migratepages when unnecessary Vlastimil Babka
2014-05-07 12:09         ` Vlastimil Babka
2014-05-07 12:09         ` [PATCH v2 2/2] mm/compaction: avoid rescanning pageblocks in isolate_freepages Vlastimil Babka
2014-05-07 12:09           ` Vlastimil Babka
2014-05-07 21:47           ` David Rientjes
2014-05-07 21:47             ` David Rientjes
2014-05-07 22:06           ` Naoya Horiguchi
2014-05-08  5:28           ` Joonsoo Kim
2014-05-08  5:28             ` Joonsoo Kim
2014-05-12  9:09             ` Vlastimil Babka
2014-05-12  9:09               ` Vlastimil Babka
2014-05-13  1:15               ` Joonsoo Kim
2014-05-13  1:15                 ` Joonsoo Kim
2014-05-09 15:49           ` Michal Nazarewicz
2014-05-09 15:49             ` Michal Nazarewicz
2014-05-19 10:14           ` Vlastimil Babka
2014-05-19 10:14             ` Vlastimil Babka
2014-05-22  2:51             ` David Rientjes
2014-05-22  2:51               ` David Rientjes
2014-05-07 21:44         ` [PATCH v2 1/2] mm/compaction: do not count migratepages when unnecessary David Rientjes
2014-05-07 21:44           ` David Rientjes
2014-05-09 15:48         ` Michal Nazarewicz
2014-05-09 15:48           ` Michal Nazarewicz
2014-05-12  9:51           ` Vlastimil Babka
2014-05-12  9:51             ` Vlastimil Babka
2014-05-07 12:10       ` [patch v3 6/6] mm, compaction: terminate async compaction when rescheduling Vlastimil Babka
2014-05-07 12:10         ` Vlastimil Babka
2014-05-07 21:20       ` Andrew Morton
2014-05-07 21:20         ` Andrew Morton
2014-05-07 21:28         ` David Rientjes
2014-05-07 21:28           ` David Rientjes
2014-05-08  5:17       ` Joonsoo Kim
2014-05-08  5:17         ` Joonsoo Kim
2014-05-12 14:15         ` [PATCH] mm, compaction: properly signal and act upon lock and need_sched() contention Vlastimil Babka
2014-05-12 14:15           ` Vlastimil Babka
2014-05-12 15:34           ` Naoya Horiguchi
     [not found]           ` <1399908847-ouuxeneo@n-horiguchi@ah.jp.nec.com>
2014-05-12 15:45             ` Vlastimil Babka
2014-05-12 15:45               ` Vlastimil Babka
2014-05-12 15:53               ` Naoya Horiguchi
2014-05-12 20:28           ` David Rientjes
2014-05-12 20:28             ` David Rientjes
2014-05-13  8:50             ` Vlastimil Babka
2014-05-13  8:50               ` Vlastimil Babka
2014-05-13  0:44           ` Joonsoo Kim
2014-05-13  0:44             ` Joonsoo Kim
2014-05-13  8:54             ` Vlastimil Babka
2014-05-13  8:54               ` Vlastimil Babka
2014-05-15  2:21               ` Joonsoo Kim
2014-05-15  2:21                 ` Joonsoo Kim
2014-05-16  9:47           ` [PATCH v2] " Vlastimil Babka
2014-05-16  9:47             ` Vlastimil Babka
2014-05-16 17:33             ` Michal Nazarewicz
2014-05-16 17:33               ` Michal Nazarewicz
2014-05-19 23:37             ` Andrew Morton
2014-05-19 23:37               ` Andrew Morton
2014-05-21 14:13               ` Vlastimil Babka
2014-05-21 14:13                 ` Vlastimil Babka
2014-05-21 20:11                 ` Andrew Morton
2014-05-21 20:11                   ` Andrew Morton
2014-05-22  3:20             ` compaction is still too expensive for thp (was: [PATCH v2] mm, compaction: properly signal and act upon lock and need_sched() contention) David Rientjes
2014-05-22  3:20               ` David Rientjes
2014-05-22  8:10               ` compaction is still too expensive for thp Vlastimil Babka
2014-05-22  8:10                 ` Vlastimil Babka
2014-05-22  8:55                 ` David Rientjes
2014-05-22  8:55                   ` David Rientjes
2014-05-22 12:03                   ` Vlastimil Babka
2014-05-22 12:03                     ` Vlastimil Babka
2014-06-04  0:29                     ` [patch -mm 1/3] mm: rename allocflags_to_migratetype for clarity David Rientjes
2014-06-04  0:29                       ` David Rientjes
2014-06-04  0:29                       ` [patch -mm 2/3] mm, compaction: pass gfp mask to compact_control David Rientjes
2014-06-04  0:29                         ` David Rientjes
2014-06-04  0:30                       ` [patch -mm 3/3] mm, compaction: avoid compacting memory for thp if pageblock cannot become free David Rientjes
2014-06-04  0:30                         ` David Rientjes
2014-06-04 11:04                         ` Mel Gorman
2014-06-04 11:04                           ` Mel Gorman
2014-06-04 22:02                           ` David Rientjes
2014-06-04 22:02                             ` David Rientjes
2014-06-04 16:07                         ` Vlastimil Babka
2014-06-04 16:07                           ` Vlastimil Babka
2014-06-04 16:11               ` [RFC PATCH 1/6] mm, compaction: periodically drop lock and restore IRQs in scanners Vlastimil Babka
2014-06-04 16:11                 ` Vlastimil Babka
2014-06-04 16:11                 ` [RFC PATCH 2/6] mm, compaction: skip rechecks when lock was already held Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-04 23:46                   ` David Rientjes
2014-06-04 23:46                     ` David Rientjes
2014-06-04 16:11                 ` [RFC PATCH 3/6] mm, compaction: remember position within pageblock in free pages scanner Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-04 16:11                 ` [RFC PATCH 4/6] mm, compaction: skip buddy pages by their order in the migrate scanner Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-05  0:02                   ` David Rientjes
2014-06-05  0:02                     ` David Rientjes
2014-06-05  9:24                     ` Vlastimil Babka
2014-06-05  9:24                       ` Vlastimil Babka
2014-06-05 21:30                       ` David Rientjes
2014-06-05 21:30                         ` David Rientjes
2014-06-06  7:20                         ` Vlastimil Babka
2014-06-06  7:20                           ` Vlastimil Babka
2014-06-09  9:09                           ` David Rientjes
2014-06-09  9:09                             ` David Rientjes
2014-06-09 11:35                             ` Vlastimil Babka
2014-06-09 11:35                               ` Vlastimil Babka
2014-06-09 22:25                               ` David Rientjes
2014-06-09 22:25                                 ` David Rientjes
2014-06-10  7:26                                 ` Vlastimil Babka
2014-06-10  7:26                                   ` Vlastimil Babka
2014-06-10 23:54                                   ` David Rientjes
2014-06-10 23:54                                     ` David Rientjes
2014-06-11 12:18                                     ` Vlastimil Babka
2014-06-11 12:18                                       ` Vlastimil Babka
2014-06-12  0:21                                       ` David Rientjes
2014-06-12  0:21                                         ` David Rientjes
2014-06-12 11:56                                         ` Vlastimil Babka
2014-06-12 11:56                                           ` Vlastimil Babka
2014-06-12 21:48                                           ` David Rientjes
2014-06-12 21:48                                             ` David Rientjes
2014-06-04 16:11                 ` [RFC PATCH 5/6] mm, compaction: try to capture the just-created high-order freepage Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-04 16:11                 ` [RFC PATCH 6/6] mm, compaction: don't migrate in blocks that cannot be fully compacted in async direct compaction Vlastimil Babka
2014-06-04 16:11                   ` Vlastimil Babka
2014-06-05  0:08                   ` David Rientjes
2014-06-05  0:08                     ` David Rientjes
2014-06-05 15:38                     ` Vlastimil Babka
2014-06-05 15:38                       ` Vlastimil Babka
2014-06-05 21:38                       ` David Rientjes
2014-06-05 21:38                         ` David Rientjes
2014-06-06  7:33                         ` Vlastimil Babka
2014-06-06  7:33                           ` Vlastimil Babka
2014-06-09  9:06                           ` David Rientjes
2014-06-09  9:06                             ` David Rientjes
2014-06-12 12:18                             ` Vlastimil Babka
2014-06-12 12:18                               ` Vlastimil Babka
2014-06-04 23:39                 ` [RFC PATCH 1/6] mm, compaction: periodically drop lock and restore IRQs in scanners David Rientjes
2014-06-04 23:39                   ` David Rientjes
2014-06-05  9:05                   ` Vlastimil Babka
2014-06-05  9:05                     ` Vlastimil Babka
2014-05-22 23:49             ` [PATCH v2] mm, compaction: properly signal and act upon lock and need_sched() contention Kevin Hilman
2014-05-22 23:49               ` Kevin Hilman
2014-05-23  2:48               ` Shawn Guo
2014-05-23  2:48                 ` Shawn Guo
2014-05-23  2:48                 ` Shawn Guo
2014-05-23  8:34                 ` Vlastimil Babka
2014-05-23  8:34                   ` Vlastimil Babka
2014-05-23  8:34                   ` Vlastimil Babka
2014-05-23 10:49                   ` Shawn Guo
2014-05-23 10:49                     ` Shawn Guo
2014-05-23 10:49                     ` Shawn Guo
2014-05-23 15:07                   ` Kevin Hilman
2014-05-23 15:07                     ` Kevin Hilman
2014-05-23 15:07                     ` Kevin Hilman
2014-05-30 16:59                   ` Stephen Warren
2014-05-30 16:59                     ` Stephen Warren
2014-05-30 16:59                     ` Stephen Warren
2014-06-02 13:35                   ` Fabio Estevam
2014-06-02 13:35                     ` Fabio Estevam
2014-06-02 13:35                     ` Fabio Estevam
2014-06-02 14:33                     ` [PATCH -mm] mm, compaction: properly signal and act upon lock and need_sched() contention - fix Vlastimil Babka
2014-06-02 14:33                       ` Vlastimil Babka
2014-06-02 14:33                       ` Vlastimil Babka
2014-06-02 15:18                       ` Fabio Estevam
2014-06-02 15:18                         ` Fabio Estevam
2014-06-02 15:18                         ` Fabio Estevam
2014-06-02 20:09                       ` David Rientjes
2014-06-02 20:09                         ` David Rientjes
2014-06-02 20:09                         ` David Rientjes
2014-05-02 13:16 ` [patch 1/2] mm, migration: add destination page freeing callback Vlastimil Babka
2014-05-02 13:16   ` Vlastimil Babka

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