From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>, Mel Gorman <mgorman@suse.de>,
Rik van Riel <riel@redhat.com>, Vlastimil Babka <vbabka@suse.cz>,
Christoph Lameter <cl@gentwo.org>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Steve Capper <steve.capper@linaro.org>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>,
Jerome Marchand <jmarchan@redhat.com>,
Sasha Levin <sasha.levin@oracle.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCHv6 02/36] rmap: add argument to charge compound page
Date: Wed, 3 Jun 2015 20:05:33 +0300 [thread overview]
Message-ID: <1433351167-125878-3-git-send-email-kirill.shutemov@linux.intel.com> (raw)
In-Reply-To: <1433351167-125878-1-git-send-email-kirill.shutemov@linux.intel.com>
We're going to allow mapping of individual 4k pages of THP compound
page. It means we cannot rely on PageTransHuge() check to decide if
map/unmap small page or THP.
The patch adds new argument to rmap functions to indicate whether we want
to operate on whole compound page or only the small page.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---
include/linux/rmap.h | 12 +++++++++---
kernel/events/uprobes.c | 4 ++--
mm/huge_memory.c | 16 ++++++++--------
mm/hugetlb.c | 4 ++--
mm/ksm.c | 4 ++--
mm/memory.c | 14 +++++++-------
mm/migrate.c | 8 ++++----
mm/rmap.c | 48 +++++++++++++++++++++++++++++++-----------------
mm/swapfile.c | 4 ++--
mm/userfaultfd.c | 2 +-
10 files changed, 68 insertions(+), 48 deletions(-)
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index bf36b6e644c4..2bc86dc14305 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -159,16 +159,22 @@ static inline void anon_vma_merge(struct vm_area_struct *vma,
struct anon_vma *page_get_anon_vma(struct page *page);
+/* bitflags for do_page_add_anon_rmap() */
+#define RMAP_EXCLUSIVE 0x01
+#define RMAP_COMPOUND 0x02
+
/*
* rmap interfaces called when adding or removing pte of page
*/
void page_move_anon_rmap(struct page *, struct vm_area_struct *, unsigned long);
-void page_add_anon_rmap(struct page *, struct vm_area_struct *, unsigned long);
+void page_add_anon_rmap(struct page *, struct vm_area_struct *,
+ unsigned long, bool);
void do_page_add_anon_rmap(struct page *, struct vm_area_struct *,
unsigned long, int);
-void page_add_new_anon_rmap(struct page *, struct vm_area_struct *, unsigned long);
+void page_add_new_anon_rmap(struct page *, struct vm_area_struct *,
+ unsigned long, bool);
void page_add_file_rmap(struct page *);
-void page_remove_rmap(struct page *);
+void page_remove_rmap(struct page *, bool);
void hugepage_add_anon_rmap(struct page *, struct vm_area_struct *,
unsigned long);
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index cb346f26a22d..5523daf59953 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -183,7 +183,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
goto unlock;
get_page(kpage);
- page_add_new_anon_rmap(kpage, vma, addr);
+ page_add_new_anon_rmap(kpage, vma, addr, false);
mem_cgroup_commit_charge(kpage, memcg, false);
lru_cache_add_active_or_unevictable(kpage, vma);
@@ -196,7 +196,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
ptep_clear_flush_notify(vma, addr, ptep);
set_pte_at_notify(mm, addr, ptep, mk_pte(kpage, vma->vm_page_prot));
- page_remove_rmap(page);
+ page_remove_rmap(page, false);
if (!page_mapped(page))
try_to_free_swap(page);
pte_unmap_unlock(ptep, ptl);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 9671f51e954d..310b0650abe0 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -773,7 +773,7 @@ static int __do_huge_pmd_anonymous_page(struct mm_struct *mm,
entry = mk_huge_pmd(page, vma->vm_page_prot);
entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
- page_add_new_anon_rmap(page, vma, haddr);
+ page_add_new_anon_rmap(page, vma, haddr, true);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, vma);
pgtable_trans_huge_deposit(mm, pmd, pgtable);
@@ -1068,7 +1068,7 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
entry = maybe_mkwrite(pte_mkdirty(entry), vma);
memcg = (void *)page_private(pages[i]);
set_page_private(pages[i], 0);
- page_add_new_anon_rmap(pages[i], vma, haddr);
+ page_add_new_anon_rmap(pages[i], vma, haddr, false);
mem_cgroup_commit_charge(pages[i], memcg, false);
lru_cache_add_active_or_unevictable(pages[i], vma);
pte = pte_offset_map(&_pmd, haddr);
@@ -1080,7 +1080,7 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
smp_wmb(); /* make pte visible before pmd */
pmd_populate(mm, pmd, pgtable);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
spin_unlock(ptl);
mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
@@ -1200,7 +1200,7 @@ alloc:
entry = mk_huge_pmd(new_page, vma->vm_page_prot);
entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
pmdp_huge_clear_flush_notify(vma, haddr, pmd);
- page_add_new_anon_rmap(new_page, vma, haddr);
+ page_add_new_anon_rmap(new_page, vma, haddr, true);
mem_cgroup_commit_charge(new_page, memcg, false);
lru_cache_add_active_or_unevictable(new_page, vma);
set_pmd_at(mm, haddr, pmd, entry);
@@ -1210,7 +1210,7 @@ alloc:
put_huge_zero_page();
} else {
VM_BUG_ON_PAGE(!PageHead(page), page);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
put_page(page);
}
ret |= VM_FAULT_WRITE;
@@ -1465,7 +1465,7 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
put_huge_zero_page();
} else {
page = pmd_page(orig_pmd);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
add_mm_counter(tlb->mm, MM_ANONPAGES, -HPAGE_PMD_NR);
VM_BUG_ON_PAGE(!PageHead(page), page);
@@ -2311,7 +2311,7 @@ static void __collapse_huge_page_copy(pte_t *pte, struct page *page,
* superfluous.
*/
pte_clear(vma->vm_mm, address, _pte);
- page_remove_rmap(src_page);
+ page_remove_rmap(src_page, false);
spin_unlock(ptl);
free_page_and_swap_cache(src_page);
}
@@ -2606,7 +2606,7 @@ static void collapse_huge_page(struct mm_struct *mm,
spin_lock(pmd_ptl);
BUG_ON(!pmd_none(*pmd));
- page_add_new_anon_rmap(new_page, vma, address);
+ page_add_new_anon_rmap(new_page, vma, address, true);
mem_cgroup_commit_charge(new_page, memcg, false);
lru_cache_add_active_or_unevictable(new_page, vma);
pgtable_trans_huge_deposit(mm, pmd, pgtable);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 290984b6a702..ddbcecab781f 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2824,7 +2824,7 @@ again:
if (huge_pte_dirty(pte))
set_page_dirty(page);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
force_flush = !__tlb_remove_page(tlb, page);
if (force_flush) {
address += sz;
@@ -3045,7 +3045,7 @@ retry_avoidcopy:
mmu_notifier_invalidate_range(mm, mmun_start, mmun_end);
set_huge_pte_at(mm, address, ptep,
make_huge_pte(vma, new_page, 1));
- page_remove_rmap(old_page);
+ page_remove_rmap(old_page, true);
hugepage_add_new_anon_rmap(new_page, vma, address);
/* Make the old page be freed below */
new_page = old_page;
diff --git a/mm/ksm.c b/mm/ksm.c
index bc7be0ee2080..fe09f3ddc912 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -957,13 +957,13 @@ static int replace_page(struct vm_area_struct *vma, struct page *page,
}
get_page(kpage);
- page_add_anon_rmap(kpage, vma, addr);
+ page_add_anon_rmap(kpage, vma, addr, false);
flush_cache_page(vma, addr, pte_pfn(*ptep));
ptep_clear_flush_notify(vma, addr, ptep);
set_pte_at_notify(mm, addr, ptep, mk_pte(kpage, vma->vm_page_prot));
- page_remove_rmap(page);
+ page_remove_rmap(page, false);
if (!page_mapped(page))
try_to_free_swap(page);
put_page(page);
diff --git a/mm/memory.c b/mm/memory.c
index 8a2fc9945b46..4cd6d9392004 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1125,7 +1125,7 @@ again:
mark_page_accessed(page);
rss[MM_FILEPAGES]--;
}
- page_remove_rmap(page);
+ page_remove_rmap(page, false);
if (unlikely(page_mapcount(page) < 0))
print_bad_pte(vma, addr, ptent, page);
if (unlikely(!__tlb_remove_page(tlb, page))) {
@@ -2113,7 +2113,7 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma,
* thread doing COW.
*/
ptep_clear_flush_notify(vma, address, page_table);
- page_add_new_anon_rmap(new_page, vma, address);
+ page_add_new_anon_rmap(new_page, vma, address, false);
mem_cgroup_commit_charge(new_page, memcg, false);
lru_cache_add_active_or_unevictable(new_page, vma);
/*
@@ -2146,7 +2146,7 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma,
* mapcount is visible. So transitively, TLBs to
* old page will be flushed before it can be reused.
*/
- page_remove_rmap(old_page);
+ page_remove_rmap(old_page, false);
}
/* Free the old page.. */
@@ -2562,7 +2562,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
pte = maybe_mkwrite(pte_mkdirty(pte), vma);
flags &= ~FAULT_FLAG_WRITE;
ret |= VM_FAULT_WRITE;
- exclusive = 1;
+ exclusive = RMAP_EXCLUSIVE;
}
flush_icache_page(vma, page);
if (pte_swp_soft_dirty(orig_pte))
@@ -2572,7 +2572,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
do_page_add_anon_rmap(page, vma, address, exclusive);
mem_cgroup_commit_charge(page, memcg, true);
} else { /* ksm created a completely new copy */
- page_add_new_anon_rmap(page, vma, address);
+ page_add_new_anon_rmap(page, vma, address, false);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, vma);
}
@@ -2726,7 +2726,7 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
}
inc_mm_counter_fast(mm, MM_ANONPAGES);
- page_add_new_anon_rmap(page, vma, address);
+ page_add_new_anon_rmap(page, vma, address, false);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, vma);
setpte:
@@ -2814,7 +2814,7 @@ void do_set_pte(struct vm_area_struct *vma, unsigned long address,
entry = maybe_mkwrite(pte_mkdirty(entry), vma);
if (anon) {
inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES);
- page_add_new_anon_rmap(page, vma, address);
+ page_add_new_anon_rmap(page, vma, address, false);
} else {
inc_mm_counter_fast(vma->vm_mm, MM_FILEPAGES);
page_add_file_rmap(page);
diff --git a/mm/migrate.c b/mm/migrate.c
index 236ee25e79d9..9cabb25fb16e 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -166,7 +166,7 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
else
page_dup_rmap(new);
} else if (PageAnon(new))
- page_add_anon_rmap(new, vma, addr);
+ page_add_anon_rmap(new, vma, addr, false);
else
page_add_file_rmap(new);
@@ -1798,7 +1798,7 @@ fail_putback:
* guarantee the copy is visible before the pagetable update.
*/
flush_cache_range(vma, mmun_start, mmun_end);
- page_add_anon_rmap(new_page, vma, mmun_start);
+ page_add_anon_rmap(new_page, vma, mmun_start, true);
pmdp_huge_clear_flush_notify(vma, mmun_start, pmd);
set_pmd_at(mm, mmun_start, pmd, entry);
flush_tlb_range(vma, mmun_start, mmun_end);
@@ -1809,13 +1809,13 @@ fail_putback:
flush_tlb_range(vma, mmun_start, mmun_end);
mmu_notifier_invalidate_range(mm, mmun_start, mmun_end);
update_mmu_cache_pmd(vma, address, &entry);
- page_remove_rmap(new_page);
+ page_remove_rmap(new_page, true);
goto fail_putback;
}
mem_cgroup_migrate(page, new_page, false);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
spin_unlock(ptl);
mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
diff --git a/mm/rmap.c b/mm/rmap.c
index 9c045940ed10..51807d605ebf 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1046,6 +1046,7 @@ static void __page_check_anon_rmap(struct page *page,
* @page: the page to add the mapping to
* @vma: the vm area in which the mapping is added
* @address: the user virtual address mapped
+ * @compound: charge the page as compound or small page
*
* The caller needs to hold the pte lock, and the page must be locked in
* the anon_vma case: to serialize mapping,index checking after setting,
@@ -1053,9 +1054,9 @@ static void __page_check_anon_rmap(struct page *page,
* (but PageKsm is never downgraded to PageAnon).
*/
void page_add_anon_rmap(struct page *page,
- struct vm_area_struct *vma, unsigned long address)
+ struct vm_area_struct *vma, unsigned long address, bool compound)
{
- do_page_add_anon_rmap(page, vma, address, 0);
+ do_page_add_anon_rmap(page, vma, address, compound ? RMAP_COMPOUND : 0);
}
/*
@@ -1064,21 +1065,24 @@ void page_add_anon_rmap(struct page *page,
* Everybody else should continue to use page_add_anon_rmap above.
*/
void do_page_add_anon_rmap(struct page *page,
- struct vm_area_struct *vma, unsigned long address, int exclusive)
+ struct vm_area_struct *vma, unsigned long address, int flags)
{
int first = atomic_inc_and_test(&page->_mapcount);
if (first) {
+ bool compound = flags & RMAP_COMPOUND;
+ int nr = compound ? hpage_nr_pages(page) : 1;
/*
* We use the irq-unsafe __{inc|mod}_zone_page_stat because
* these counters are not modified in interrupt context, and
* pte lock(a spinlock) is held, which implies preemption
* disabled.
*/
- if (PageTransHuge(page))
+ if (compound) {
+ VM_BUG_ON_PAGE(!PageTransHuge(page), page);
__inc_zone_page_state(page,
NR_ANON_TRANSPARENT_HUGEPAGES);
- __mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
- hpage_nr_pages(page));
+ }
+ __mod_zone_page_state(page_zone(page), NR_ANON_PAGES, nr);
}
if (unlikely(PageKsm(page)))
return;
@@ -1086,7 +1090,8 @@ void do_page_add_anon_rmap(struct page *page,
VM_BUG_ON_PAGE(!PageLocked(page), page);
/* address might be in next vma when migration races vma_adjust */
if (first)
- __page_set_anon_rmap(page, vma, address, exclusive);
+ __page_set_anon_rmap(page, vma, address,
+ flags & RMAP_EXCLUSIVE);
else
__page_check_anon_rmap(page, vma, address);
}
@@ -1096,21 +1101,25 @@ void do_page_add_anon_rmap(struct page *page,
* @page: the page to add the mapping to
* @vma: the vm area in which the mapping is added
* @address: the user virtual address mapped
+ * @compound: charge the page as compound or small page
*
* Same as page_add_anon_rmap but must only be called on *new* pages.
* This means the inc-and-test can be bypassed.
* Page does not have to be locked.
*/
void page_add_new_anon_rmap(struct page *page,
- struct vm_area_struct *vma, unsigned long address)
+ struct vm_area_struct *vma, unsigned long address, bool compound)
{
+ int nr = compound ? hpage_nr_pages(page) : 1;
+
VM_BUG_ON_VMA(address < vma->vm_start || address >= vma->vm_end, vma);
SetPageSwapBacked(page);
atomic_set(&page->_mapcount, 0); /* increment count (starts at -1) */
- if (PageTransHuge(page))
+ if (compound) {
+ VM_BUG_ON_PAGE(!PageTransHuge(page), page);
__inc_zone_page_state(page, NR_ANON_TRANSPARENT_HUGEPAGES);
- __mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
- hpage_nr_pages(page));
+ }
+ __mod_zone_page_state(page_zone(page), NR_ANON_PAGES, nr);
__page_set_anon_rmap(page, vma, address, 1);
}
@@ -1162,13 +1171,17 @@ out:
/**
* page_remove_rmap - take down pte mapping from a page
- * @page: page to remove mapping from
+ * @page: page to remove mapping from
+ * @compound: uncharge the page as compound or small page
*
* The caller needs to hold the pte lock.
*/
-void page_remove_rmap(struct page *page)
+void page_remove_rmap(struct page *page, bool compound)
{
+ int nr = compound ? hpage_nr_pages(page) : 1;
+
if (!PageAnon(page)) {
+ VM_BUG_ON_PAGE(compound && !PageHuge(page), page);
page_remove_file_rmap(page);
return;
}
@@ -1186,11 +1199,12 @@ void page_remove_rmap(struct page *page)
* these counters are not modified in interrupt context, and
* pte lock(a spinlock) is held, which implies preemption disabled.
*/
- if (PageTransHuge(page))
+ if (compound) {
+ VM_BUG_ON_PAGE(!PageTransHuge(page), page);
__dec_zone_page_state(page, NR_ANON_TRANSPARENT_HUGEPAGES);
+ }
- __mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
- -hpage_nr_pages(page));
+ __mod_zone_page_state(page_zone(page), NR_ANON_PAGES, -nr);
if (unlikely(PageMlocked(page)))
clear_page_mlock(page);
@@ -1332,7 +1346,7 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
dec_mm_counter(mm, MM_FILEPAGES);
discard:
- page_remove_rmap(page);
+ page_remove_rmap(page, false);
page_cache_release(page);
out_unmap:
diff --git a/mm/swapfile.c b/mm/swapfile.c
index a7e72103f23b..65825c2687f5 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1121,10 +1121,10 @@ static int unuse_pte(struct vm_area_struct *vma, pmd_t *pmd,
set_pte_at(vma->vm_mm, addr, pte,
pte_mkold(mk_pte(page, vma->vm_page_prot)));
if (page == swapcache) {
- page_add_anon_rmap(page, vma, addr);
+ page_add_anon_rmap(page, vma, addr, false);
mem_cgroup_commit_charge(page, memcg, true);
} else { /* ksm created a completely new copy */
- page_add_new_anon_rmap(page, vma, addr);
+ page_add_new_anon_rmap(page, vma, addr, false);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, vma);
}
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 77fee9325a57..ae21a1f309c2 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -76,7 +76,7 @@ static int mcopy_atomic_pte(struct mm_struct *dst_mm,
goto out_release_uncharge_unlock;
inc_mm_counter(dst_mm, MM_ANONPAGES);
- page_add_new_anon_rmap(page, dst_vma, dst_addr);
+ page_add_new_anon_rmap(page, dst_vma, dst_addr, false);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, dst_vma);
--
2.1.4
WARNING: multiple messages have this Message-ID (diff)
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Andrea Arcangeli <aarcange@redhat.com>,
Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>, Mel Gorman <mgorman@suse.de>,
Rik van Riel <riel@redhat.com>, Vlastimil Babka <vbabka@suse.cz>,
Christoph Lameter <cl@gentwo.org>,
Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
Steve Capper <steve.capper@linaro.org>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
Johannes Weiner <hannes@cmpxchg.org>,
Michal Hocko <mhocko@suse.cz>,
Jerome Marchand <jmarchan@redhat.com>,
Sasha Levin <sasha.levin@oracle.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCHv6 02/36] rmap: add argument to charge compound page
Date: Wed, 3 Jun 2015 20:05:33 +0300 [thread overview]
Message-ID: <1433351167-125878-3-git-send-email-kirill.shutemov@linux.intel.com> (raw)
In-Reply-To: <1433351167-125878-1-git-send-email-kirill.shutemov@linux.intel.com>
We're going to allow mapping of individual 4k pages of THP compound
page. It means we cannot rely on PageTransHuge() check to decide if
map/unmap small page or THP.
The patch adds new argument to rmap functions to indicate whether we want
to operate on whole compound page or only the small page.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
---
include/linux/rmap.h | 12 +++++++++---
kernel/events/uprobes.c | 4 ++--
mm/huge_memory.c | 16 ++++++++--------
mm/hugetlb.c | 4 ++--
mm/ksm.c | 4 ++--
mm/memory.c | 14 +++++++-------
mm/migrate.c | 8 ++++----
mm/rmap.c | 48 +++++++++++++++++++++++++++++++-----------------
mm/swapfile.c | 4 ++--
mm/userfaultfd.c | 2 +-
10 files changed, 68 insertions(+), 48 deletions(-)
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index bf36b6e644c4..2bc86dc14305 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -159,16 +159,22 @@ static inline void anon_vma_merge(struct vm_area_struct *vma,
struct anon_vma *page_get_anon_vma(struct page *page);
+/* bitflags for do_page_add_anon_rmap() */
+#define RMAP_EXCLUSIVE 0x01
+#define RMAP_COMPOUND 0x02
+
/*
* rmap interfaces called when adding or removing pte of page
*/
void page_move_anon_rmap(struct page *, struct vm_area_struct *, unsigned long);
-void page_add_anon_rmap(struct page *, struct vm_area_struct *, unsigned long);
+void page_add_anon_rmap(struct page *, struct vm_area_struct *,
+ unsigned long, bool);
void do_page_add_anon_rmap(struct page *, struct vm_area_struct *,
unsigned long, int);
-void page_add_new_anon_rmap(struct page *, struct vm_area_struct *, unsigned long);
+void page_add_new_anon_rmap(struct page *, struct vm_area_struct *,
+ unsigned long, bool);
void page_add_file_rmap(struct page *);
-void page_remove_rmap(struct page *);
+void page_remove_rmap(struct page *, bool);
void hugepage_add_anon_rmap(struct page *, struct vm_area_struct *,
unsigned long);
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index cb346f26a22d..5523daf59953 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -183,7 +183,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
goto unlock;
get_page(kpage);
- page_add_new_anon_rmap(kpage, vma, addr);
+ page_add_new_anon_rmap(kpage, vma, addr, false);
mem_cgroup_commit_charge(kpage, memcg, false);
lru_cache_add_active_or_unevictable(kpage, vma);
@@ -196,7 +196,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr,
ptep_clear_flush_notify(vma, addr, ptep);
set_pte_at_notify(mm, addr, ptep, mk_pte(kpage, vma->vm_page_prot));
- page_remove_rmap(page);
+ page_remove_rmap(page, false);
if (!page_mapped(page))
try_to_free_swap(page);
pte_unmap_unlock(ptep, ptl);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 9671f51e954d..310b0650abe0 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -773,7 +773,7 @@ static int __do_huge_pmd_anonymous_page(struct mm_struct *mm,
entry = mk_huge_pmd(page, vma->vm_page_prot);
entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
- page_add_new_anon_rmap(page, vma, haddr);
+ page_add_new_anon_rmap(page, vma, haddr, true);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, vma);
pgtable_trans_huge_deposit(mm, pmd, pgtable);
@@ -1068,7 +1068,7 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
entry = maybe_mkwrite(pte_mkdirty(entry), vma);
memcg = (void *)page_private(pages[i]);
set_page_private(pages[i], 0);
- page_add_new_anon_rmap(pages[i], vma, haddr);
+ page_add_new_anon_rmap(pages[i], vma, haddr, false);
mem_cgroup_commit_charge(pages[i], memcg, false);
lru_cache_add_active_or_unevictable(pages[i], vma);
pte = pte_offset_map(&_pmd, haddr);
@@ -1080,7 +1080,7 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
smp_wmb(); /* make pte visible before pmd */
pmd_populate(mm, pmd, pgtable);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
spin_unlock(ptl);
mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
@@ -1200,7 +1200,7 @@ alloc:
entry = mk_huge_pmd(new_page, vma->vm_page_prot);
entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
pmdp_huge_clear_flush_notify(vma, haddr, pmd);
- page_add_new_anon_rmap(new_page, vma, haddr);
+ page_add_new_anon_rmap(new_page, vma, haddr, true);
mem_cgroup_commit_charge(new_page, memcg, false);
lru_cache_add_active_or_unevictable(new_page, vma);
set_pmd_at(mm, haddr, pmd, entry);
@@ -1210,7 +1210,7 @@ alloc:
put_huge_zero_page();
} else {
VM_BUG_ON_PAGE(!PageHead(page), page);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
put_page(page);
}
ret |= VM_FAULT_WRITE;
@@ -1465,7 +1465,7 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
put_huge_zero_page();
} else {
page = pmd_page(orig_pmd);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
VM_BUG_ON_PAGE(page_mapcount(page) < 0, page);
add_mm_counter(tlb->mm, MM_ANONPAGES, -HPAGE_PMD_NR);
VM_BUG_ON_PAGE(!PageHead(page), page);
@@ -2311,7 +2311,7 @@ static void __collapse_huge_page_copy(pte_t *pte, struct page *page,
* superfluous.
*/
pte_clear(vma->vm_mm, address, _pte);
- page_remove_rmap(src_page);
+ page_remove_rmap(src_page, false);
spin_unlock(ptl);
free_page_and_swap_cache(src_page);
}
@@ -2606,7 +2606,7 @@ static void collapse_huge_page(struct mm_struct *mm,
spin_lock(pmd_ptl);
BUG_ON(!pmd_none(*pmd));
- page_add_new_anon_rmap(new_page, vma, address);
+ page_add_new_anon_rmap(new_page, vma, address, true);
mem_cgroup_commit_charge(new_page, memcg, false);
lru_cache_add_active_or_unevictable(new_page, vma);
pgtable_trans_huge_deposit(mm, pmd, pgtable);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 290984b6a702..ddbcecab781f 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2824,7 +2824,7 @@ again:
if (huge_pte_dirty(pte))
set_page_dirty(page);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
force_flush = !__tlb_remove_page(tlb, page);
if (force_flush) {
address += sz;
@@ -3045,7 +3045,7 @@ retry_avoidcopy:
mmu_notifier_invalidate_range(mm, mmun_start, mmun_end);
set_huge_pte_at(mm, address, ptep,
make_huge_pte(vma, new_page, 1));
- page_remove_rmap(old_page);
+ page_remove_rmap(old_page, true);
hugepage_add_new_anon_rmap(new_page, vma, address);
/* Make the old page be freed below */
new_page = old_page;
diff --git a/mm/ksm.c b/mm/ksm.c
index bc7be0ee2080..fe09f3ddc912 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -957,13 +957,13 @@ static int replace_page(struct vm_area_struct *vma, struct page *page,
}
get_page(kpage);
- page_add_anon_rmap(kpage, vma, addr);
+ page_add_anon_rmap(kpage, vma, addr, false);
flush_cache_page(vma, addr, pte_pfn(*ptep));
ptep_clear_flush_notify(vma, addr, ptep);
set_pte_at_notify(mm, addr, ptep, mk_pte(kpage, vma->vm_page_prot));
- page_remove_rmap(page);
+ page_remove_rmap(page, false);
if (!page_mapped(page))
try_to_free_swap(page);
put_page(page);
diff --git a/mm/memory.c b/mm/memory.c
index 8a2fc9945b46..4cd6d9392004 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1125,7 +1125,7 @@ again:
mark_page_accessed(page);
rss[MM_FILEPAGES]--;
}
- page_remove_rmap(page);
+ page_remove_rmap(page, false);
if (unlikely(page_mapcount(page) < 0))
print_bad_pte(vma, addr, ptent, page);
if (unlikely(!__tlb_remove_page(tlb, page))) {
@@ -2113,7 +2113,7 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma,
* thread doing COW.
*/
ptep_clear_flush_notify(vma, address, page_table);
- page_add_new_anon_rmap(new_page, vma, address);
+ page_add_new_anon_rmap(new_page, vma, address, false);
mem_cgroup_commit_charge(new_page, memcg, false);
lru_cache_add_active_or_unevictable(new_page, vma);
/*
@@ -2146,7 +2146,7 @@ static int wp_page_copy(struct mm_struct *mm, struct vm_area_struct *vma,
* mapcount is visible. So transitively, TLBs to
* old page will be flushed before it can be reused.
*/
- page_remove_rmap(old_page);
+ page_remove_rmap(old_page, false);
}
/* Free the old page.. */
@@ -2562,7 +2562,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
pte = maybe_mkwrite(pte_mkdirty(pte), vma);
flags &= ~FAULT_FLAG_WRITE;
ret |= VM_FAULT_WRITE;
- exclusive = 1;
+ exclusive = RMAP_EXCLUSIVE;
}
flush_icache_page(vma, page);
if (pte_swp_soft_dirty(orig_pte))
@@ -2572,7 +2572,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
do_page_add_anon_rmap(page, vma, address, exclusive);
mem_cgroup_commit_charge(page, memcg, true);
} else { /* ksm created a completely new copy */
- page_add_new_anon_rmap(page, vma, address);
+ page_add_new_anon_rmap(page, vma, address, false);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, vma);
}
@@ -2726,7 +2726,7 @@ static int do_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
}
inc_mm_counter_fast(mm, MM_ANONPAGES);
- page_add_new_anon_rmap(page, vma, address);
+ page_add_new_anon_rmap(page, vma, address, false);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, vma);
setpte:
@@ -2814,7 +2814,7 @@ void do_set_pte(struct vm_area_struct *vma, unsigned long address,
entry = maybe_mkwrite(pte_mkdirty(entry), vma);
if (anon) {
inc_mm_counter_fast(vma->vm_mm, MM_ANONPAGES);
- page_add_new_anon_rmap(page, vma, address);
+ page_add_new_anon_rmap(page, vma, address, false);
} else {
inc_mm_counter_fast(vma->vm_mm, MM_FILEPAGES);
page_add_file_rmap(page);
diff --git a/mm/migrate.c b/mm/migrate.c
index 236ee25e79d9..9cabb25fb16e 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -166,7 +166,7 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
else
page_dup_rmap(new);
} else if (PageAnon(new))
- page_add_anon_rmap(new, vma, addr);
+ page_add_anon_rmap(new, vma, addr, false);
else
page_add_file_rmap(new);
@@ -1798,7 +1798,7 @@ fail_putback:
* guarantee the copy is visible before the pagetable update.
*/
flush_cache_range(vma, mmun_start, mmun_end);
- page_add_anon_rmap(new_page, vma, mmun_start);
+ page_add_anon_rmap(new_page, vma, mmun_start, true);
pmdp_huge_clear_flush_notify(vma, mmun_start, pmd);
set_pmd_at(mm, mmun_start, pmd, entry);
flush_tlb_range(vma, mmun_start, mmun_end);
@@ -1809,13 +1809,13 @@ fail_putback:
flush_tlb_range(vma, mmun_start, mmun_end);
mmu_notifier_invalidate_range(mm, mmun_start, mmun_end);
update_mmu_cache_pmd(vma, address, &entry);
- page_remove_rmap(new_page);
+ page_remove_rmap(new_page, true);
goto fail_putback;
}
mem_cgroup_migrate(page, new_page, false);
- page_remove_rmap(page);
+ page_remove_rmap(page, true);
spin_unlock(ptl);
mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
diff --git a/mm/rmap.c b/mm/rmap.c
index 9c045940ed10..51807d605ebf 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1046,6 +1046,7 @@ static void __page_check_anon_rmap(struct page *page,
* @page: the page to add the mapping to
* @vma: the vm area in which the mapping is added
* @address: the user virtual address mapped
+ * @compound: charge the page as compound or small page
*
* The caller needs to hold the pte lock, and the page must be locked in
* the anon_vma case: to serialize mapping,index checking after setting,
@@ -1053,9 +1054,9 @@ static void __page_check_anon_rmap(struct page *page,
* (but PageKsm is never downgraded to PageAnon).
*/
void page_add_anon_rmap(struct page *page,
- struct vm_area_struct *vma, unsigned long address)
+ struct vm_area_struct *vma, unsigned long address, bool compound)
{
- do_page_add_anon_rmap(page, vma, address, 0);
+ do_page_add_anon_rmap(page, vma, address, compound ? RMAP_COMPOUND : 0);
}
/*
@@ -1064,21 +1065,24 @@ void page_add_anon_rmap(struct page *page,
* Everybody else should continue to use page_add_anon_rmap above.
*/
void do_page_add_anon_rmap(struct page *page,
- struct vm_area_struct *vma, unsigned long address, int exclusive)
+ struct vm_area_struct *vma, unsigned long address, int flags)
{
int first = atomic_inc_and_test(&page->_mapcount);
if (first) {
+ bool compound = flags & RMAP_COMPOUND;
+ int nr = compound ? hpage_nr_pages(page) : 1;
/*
* We use the irq-unsafe __{inc|mod}_zone_page_stat because
* these counters are not modified in interrupt context, and
* pte lock(a spinlock) is held, which implies preemption
* disabled.
*/
- if (PageTransHuge(page))
+ if (compound) {
+ VM_BUG_ON_PAGE(!PageTransHuge(page), page);
__inc_zone_page_state(page,
NR_ANON_TRANSPARENT_HUGEPAGES);
- __mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
- hpage_nr_pages(page));
+ }
+ __mod_zone_page_state(page_zone(page), NR_ANON_PAGES, nr);
}
if (unlikely(PageKsm(page)))
return;
@@ -1086,7 +1090,8 @@ void do_page_add_anon_rmap(struct page *page,
VM_BUG_ON_PAGE(!PageLocked(page), page);
/* address might be in next vma when migration races vma_adjust */
if (first)
- __page_set_anon_rmap(page, vma, address, exclusive);
+ __page_set_anon_rmap(page, vma, address,
+ flags & RMAP_EXCLUSIVE);
else
__page_check_anon_rmap(page, vma, address);
}
@@ -1096,21 +1101,25 @@ void do_page_add_anon_rmap(struct page *page,
* @page: the page to add the mapping to
* @vma: the vm area in which the mapping is added
* @address: the user virtual address mapped
+ * @compound: charge the page as compound or small page
*
* Same as page_add_anon_rmap but must only be called on *new* pages.
* This means the inc-and-test can be bypassed.
* Page does not have to be locked.
*/
void page_add_new_anon_rmap(struct page *page,
- struct vm_area_struct *vma, unsigned long address)
+ struct vm_area_struct *vma, unsigned long address, bool compound)
{
+ int nr = compound ? hpage_nr_pages(page) : 1;
+
VM_BUG_ON_VMA(address < vma->vm_start || address >= vma->vm_end, vma);
SetPageSwapBacked(page);
atomic_set(&page->_mapcount, 0); /* increment count (starts at -1) */
- if (PageTransHuge(page))
+ if (compound) {
+ VM_BUG_ON_PAGE(!PageTransHuge(page), page);
__inc_zone_page_state(page, NR_ANON_TRANSPARENT_HUGEPAGES);
- __mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
- hpage_nr_pages(page));
+ }
+ __mod_zone_page_state(page_zone(page), NR_ANON_PAGES, nr);
__page_set_anon_rmap(page, vma, address, 1);
}
@@ -1162,13 +1171,17 @@ out:
/**
* page_remove_rmap - take down pte mapping from a page
- * @page: page to remove mapping from
+ * @page: page to remove mapping from
+ * @compound: uncharge the page as compound or small page
*
* The caller needs to hold the pte lock.
*/
-void page_remove_rmap(struct page *page)
+void page_remove_rmap(struct page *page, bool compound)
{
+ int nr = compound ? hpage_nr_pages(page) : 1;
+
if (!PageAnon(page)) {
+ VM_BUG_ON_PAGE(compound && !PageHuge(page), page);
page_remove_file_rmap(page);
return;
}
@@ -1186,11 +1199,12 @@ void page_remove_rmap(struct page *page)
* these counters are not modified in interrupt context, and
* pte lock(a spinlock) is held, which implies preemption disabled.
*/
- if (PageTransHuge(page))
+ if (compound) {
+ VM_BUG_ON_PAGE(!PageTransHuge(page), page);
__dec_zone_page_state(page, NR_ANON_TRANSPARENT_HUGEPAGES);
+ }
- __mod_zone_page_state(page_zone(page), NR_ANON_PAGES,
- -hpage_nr_pages(page));
+ __mod_zone_page_state(page_zone(page), NR_ANON_PAGES, -nr);
if (unlikely(PageMlocked(page)))
clear_page_mlock(page);
@@ -1332,7 +1346,7 @@ static int try_to_unmap_one(struct page *page, struct vm_area_struct *vma,
dec_mm_counter(mm, MM_FILEPAGES);
discard:
- page_remove_rmap(page);
+ page_remove_rmap(page, false);
page_cache_release(page);
out_unmap:
diff --git a/mm/swapfile.c b/mm/swapfile.c
index a7e72103f23b..65825c2687f5 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1121,10 +1121,10 @@ static int unuse_pte(struct vm_area_struct *vma, pmd_t *pmd,
set_pte_at(vma->vm_mm, addr, pte,
pte_mkold(mk_pte(page, vma->vm_page_prot)));
if (page == swapcache) {
- page_add_anon_rmap(page, vma, addr);
+ page_add_anon_rmap(page, vma, addr, false);
mem_cgroup_commit_charge(page, memcg, true);
} else { /* ksm created a completely new copy */
- page_add_new_anon_rmap(page, vma, addr);
+ page_add_new_anon_rmap(page, vma, addr, false);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, vma);
}
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c
index 77fee9325a57..ae21a1f309c2 100644
--- a/mm/userfaultfd.c
+++ b/mm/userfaultfd.c
@@ -76,7 +76,7 @@ static int mcopy_atomic_pte(struct mm_struct *dst_mm,
goto out_release_uncharge_unlock;
inc_mm_counter(dst_mm, MM_ANONPAGES);
- page_add_new_anon_rmap(page, dst_vma, dst_addr);
+ page_add_new_anon_rmap(page, dst_vma, dst_addr, false);
mem_cgroup_commit_charge(page, memcg, false);
lru_cache_add_active_or_unevictable(page, dst_vma);
--
2.1.4
--
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next prev parent reply other threads:[~2015-06-03 17:06 UTC|newest]
Thread overview: 114+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-03 17:05 [PATCHv6 00/36] THP refcounting redesign Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 01/36] mm, proc: adjust PSS calculation Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-09 12:29 ` Vlastimil Babka
2015-06-09 12:29 ` Vlastimil Babka
2015-06-22 10:02 ` Kirill A. Shutemov
2015-06-22 10:02 ` Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov [this message]
2015-06-03 17:05 ` [PATCHv6 02/36] rmap: add argument to charge compound page Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 03/36] memcg: adjust to support new THP refcounting Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 04/36] mm, thp: adjust conditions when we can reuse the page on WP fault Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 05/36] mm: adjust FOLL_SPLIT for new refcounting Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 06/36] mm: handle PTE-mapped tail pages in gerneric fast gup implementaiton Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 07/36] thp, mlock: do not allow huge pages in mlocked area Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 08/36] khugepaged: ignore pmd tables with THP mapped with ptes Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 09/36] thp: rename split_huge_page_pmd() to split_huge_pmd() Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 10/36] mm, vmstats: new THP splitting event Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 11/36] mm: temporally mark THP broken Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 12/36] thp: drop all split_huge_page()-related code Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 13/36] mm: drop tail page refcounting Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-09 13:59 ` Vlastimil Babka
2015-06-09 13:59 ` Vlastimil Babka
2015-06-03 17:05 ` [PATCHv6 14/36] futex, thp: remove special case for THP in get_futex_key Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 15/36] ksm: prepare to new THP semantics Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 16/36] mm, thp: remove compound_lock Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 17/36] arm64, thp: remove infrastructure for handling splitting PMDs Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 18/36] arm, " Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 19/36] mips, " Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 20/36] powerpc, " Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 21/36] s390, " Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 22/36] sparc, " Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 23/36] tile, " Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 24/36] x86, " Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 25/36] mm, " Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 26/36] mm: rework mapcount accounting to enable 4k mapping of THPs Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-10 13:47 ` Vlastimil Babka
2015-06-10 13:47 ` Vlastimil Babka
2015-06-22 10:22 ` Kirill A. Shutemov
2015-06-22 10:22 ` Kirill A. Shutemov
2015-06-03 17:05 ` [PATCHv6 27/36] mm: differentiate page_mapped() from page_mapcount() for compound pages Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-09 10:58 ` Kirill A. Shutemov
2015-06-09 10:58 ` Kirill A. Shutemov
2015-06-10 14:34 ` Vlastimil Babka
2015-06-10 14:34 ` Vlastimil Babka
2015-06-03 17:05 ` [PATCHv6 28/36] mm, numa: skip PTE-mapped THP on numa fault Kirill A. Shutemov
2015-06-03 17:05 ` Kirill A. Shutemov
2015-06-03 17:06 ` [PATCHv6 29/36] thp: implement split_huge_pmd() Kirill A. Shutemov
2015-06-03 17:06 ` Kirill A. Shutemov
2015-06-11 9:49 ` Vlastimil Babka
2015-06-11 9:49 ` Vlastimil Babka
2015-06-22 11:14 ` Kirill A. Shutemov
2015-06-22 11:14 ` Kirill A. Shutemov
2015-06-22 16:01 ` Vlastimil Babka
2015-06-22 16:01 ` Vlastimil Babka
2015-06-03 17:06 ` [PATCHv6 30/36] thp: add option to setup migration entiries during PMD split Kirill A. Shutemov
2015-06-03 17:06 ` Kirill A. Shutemov
2015-06-03 17:06 ` [PATCHv6 31/36] thp, mm: split_huge_page(): caller need to lock page Kirill A. Shutemov
2015-06-03 17:06 ` Kirill A. Shutemov
2015-06-03 17:06 ` [PATCHv6 32/36] thp: reintroduce split_huge_page() Kirill A. Shutemov
2015-06-03 17:06 ` Kirill A. Shutemov
2015-06-10 15:44 ` Vlastimil Babka
2015-06-10 15:44 ` Vlastimil Babka
2015-06-22 11:28 ` Kirill A. Shutemov
2015-06-22 11:28 ` Kirill A. Shutemov
2015-06-03 17:06 ` [PATCHv6 33/36] migrate_pages: try to split pages on qeueuing Kirill A. Shutemov
2015-06-03 17:06 ` Kirill A. Shutemov
2015-06-11 9:27 ` Vlastimil Babka
2015-06-11 9:27 ` Vlastimil Babka
2015-06-22 11:35 ` Kirill A. Shutemov
2015-06-22 11:35 ` Kirill A. Shutemov
2015-06-03 17:06 ` [PATCHv6 34/36] thp: introduce deferred_split_huge_page() Kirill A. Shutemov
2015-06-03 17:06 ` Kirill A. Shutemov
2015-06-03 17:06 ` [PATCHv6 35/36] mm: re-enable THP Kirill A. Shutemov
2015-06-03 17:06 ` Kirill A. Shutemov
2015-06-03 17:06 ` [PATCHv6 36/36] thp: update documentation Kirill A. Shutemov
2015-06-03 17:06 ` Kirill A. Shutemov
2015-06-11 12:30 ` Vlastimil Babka
2015-06-11 12:30 ` Vlastimil Babka
2015-06-22 13:18 ` Kirill A. Shutemov
2015-06-22 13:18 ` Kirill A. Shutemov
2015-06-22 16:07 ` Vlastimil Babka
2015-06-22 16:07 ` Vlastimil Babka
2015-06-16 13:17 ` [PATCHv6 00/36] THP refcounting redesign Jerome Marchand
2015-06-22 13:21 ` Kirill A. Shutemov
2015-06-22 13:21 ` Kirill A. Shutemov
2015-06-22 13:32 ` Jerome Marchand
2015-06-22 13:39 ` Kirill A. Shutemov
2015-06-22 13:39 ` Kirill A. Shutemov
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