* [merged] mm-remove-swap_mlock-in-ttu.patch removed from -mm tree
@ 2017-05-04 19:11 akpm
0 siblings, 0 replies; only message in thread
From: akpm @ 2017-05-04 19:11 UTC (permalink / raw)
To: hannes, hillf.zj, khandual, kirill.shutemov, mhocko, minchan,
mm-commits, n-horiguchi, vbabka
The patch titled
Subject: mm: remove SWAP_MLOCK in ttu
has been removed from the -mm tree. Its filename was
mm-remove-swap_mlock-in-ttu.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Minchan Kim <minchan@kernel.org>
Subject: mm: remove SWAP_MLOCK in ttu
ttu doesn't need to return SWAP_MLOCK. Instead, just return SWAP_FAIL
because it means the page is not-swappable so it should move to another
LRU list(active or unevictable). putback friends will move it to right
list depending on the page's LRU flag.
Link: http://lkml.kernel.org/r/1489555493-14659-6-git-send-email-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
include/linux/rmap.h | 1 -
mm/rmap.c | 3 +--
mm/vmscan.c | 20 +++++++-------------
3 files changed, 8 insertions(+), 16 deletions(-)
diff -puN include/linux/rmap.h~mm-remove-swap_mlock-in-ttu include/linux/rmap.h
--- a/include/linux/rmap.h~mm-remove-swap_mlock-in-ttu
+++ a/include/linux/rmap.h
@@ -297,6 +297,5 @@ static inline int page_mkclean(struct pa
#define SWAP_SUCCESS 0
#define SWAP_AGAIN 1
#define SWAP_FAIL 2
-#define SWAP_MLOCK 3
#endif /* _LINUX_RMAP_H */
diff -puN mm/rmap.c~mm-remove-swap_mlock-in-ttu mm/rmap.c
--- a/mm/rmap.c~mm-remove-swap_mlock-in-ttu
+++ a/mm/rmap.c
@@ -1329,7 +1329,7 @@ static int try_to_unmap_one(struct page
*/
mlock_vma_page(page);
}
- ret = SWAP_MLOCK;
+ ret = SWAP_FAIL;
page_vma_mapped_walk_done(&pvmw);
break;
}
@@ -1506,7 +1506,6 @@ static int page_mapcount_is_zero(struct
* SWAP_SUCCESS - we succeeded in removing all mappings
* SWAP_AGAIN - we missed a mapping, try again later
* SWAP_FAIL - the page is unswappable
- * SWAP_MLOCK - page is mlocked.
*/
int try_to_unmap(struct page *page, enum ttu_flags flags)
{
diff -puN mm/vmscan.c~mm-remove-swap_mlock-in-ttu mm/vmscan.c
--- a/mm/vmscan.c~mm-remove-swap_mlock-in-ttu
+++ a/mm/vmscan.c
@@ -987,7 +987,7 @@ static unsigned long shrink_page_list(st
sc->nr_scanned++;
if (unlikely(!page_evictable(page)))
- goto cull_mlocked;
+ goto activate_locked;
if (!sc->may_unmap && page_mapped(page))
goto keep_locked;
@@ -1152,8 +1152,6 @@ static unsigned long shrink_page_list(st
goto activate_locked;
case SWAP_AGAIN:
goto keep_locked;
- case SWAP_MLOCK:
- goto cull_mlocked;
case SWAP_SUCCESS:
; /* try to free the page below */
}
@@ -1295,20 +1293,16 @@ free_it:
list_add(&page->lru, &free_pages);
continue;
-cull_mlocked:
- if (PageSwapCache(page))
- try_to_free_swap(page);
- unlock_page(page);
- list_add(&page->lru, &ret_pages);
- continue;
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2017-05-04 19:11 UTC | newest]
Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-05-04 19:11 [merged] mm-remove-swap_mlock-in-ttu.patch removed from -mm tree akpm
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.