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Diffstat (limited to 'mm')
-rw-r--r--mm/debug.c28
-rw-r--r--mm/kmemleak.c2
-rw-r--r--mm/memory.c10
-rw-r--r--mm/mprotect.c6
-rw-r--r--mm/page_alloc.c2
-rw-r--r--mm/page_io.c4
-rw-r--r--mm/page_owner.c1
-rw-r--r--mm/page_vma_mapped.c66
-rw-r--r--mm/sparse.c2
-rw-r--r--mm/vmscan.c3
-rw-r--r--mm/zsmalloc.c1
11 files changed, 76 insertions, 49 deletions
diff --git a/mm/debug.c b/mm/debug.c
index d947f3e03b0d..56e2d9125ea5 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -50,7 +50,7 @@ void __dump_page(struct page *page, const char *reason)
*/
int mapcount = PageSlab(page) ? 0 : page_mapcount(page);
- pr_emerg("page:%p count:%d mapcount:%d mapping:%p index:%#lx",
+ pr_emerg("page:%px count:%d mapcount:%d mapping:%px index:%#lx",
page, page_ref_count(page), mapcount,
page->mapping, page_to_pgoff(page));
if (PageCompound(page))
@@ -69,7 +69,7 @@ void __dump_page(struct page *page, const char *reason)
#ifdef CONFIG_MEMCG
if (page->mem_cgroup)
- pr_alert("page->mem_cgroup:%p\n", page->mem_cgroup);
+ pr_alert("page->mem_cgroup:%px\n", page->mem_cgroup);
#endif
}
@@ -84,10 +84,10 @@ EXPORT_SYMBOL(dump_page);
void dump_vma(const struct vm_area_struct *vma)
{
- pr_emerg("vma %p start %p end %p\n"
- "next %p prev %p mm %p\n"
- "prot %lx anon_vma %p vm_ops %p\n"
- "pgoff %lx file %p private_data %p\n"
+ pr_emerg("vma %px start %px end %px\n"
+ "next %px prev %px mm %px\n"
+ "prot %lx anon_vma %px vm_ops %px\n"
+ "pgoff %lx file %px private_data %px\n"
"flags: %#lx(%pGv)\n",
vma, (void *)vma->vm_start, (void *)vma->vm_end, vma->vm_next,
vma->vm_prev, vma->vm_mm,
@@ -100,27 +100,27 @@ EXPORT_SYMBOL(dump_vma);
void dump_mm(const struct mm_struct *mm)
{
- pr_emerg("mm %p mmap %p seqnum %d task_size %lu\n"
+ pr_emerg("mm %px mmap %px seqnum %d task_size %lu\n"
#ifdef CONFIG_MMU
- "get_unmapped_area %p\n"
+ "get_unmapped_area %px\n"
#endif
"mmap_base %lu mmap_legacy_base %lu highest_vm_end %lu\n"
- "pgd %p mm_users %d mm_count %d pgtables_bytes %lu map_count %d\n"
+ "pgd %px mm_users %d mm_count %d pgtables_bytes %lu map_count %d\n"
"hiwater_rss %lx hiwater_vm %lx total_vm %lx locked_vm %lx\n"
"pinned_vm %lx data_vm %lx exec_vm %lx stack_vm %lx\n"
"start_code %lx end_code %lx start_data %lx end_data %lx\n"
"start_brk %lx brk %lx start_stack %lx\n"
"arg_start %lx arg_end %lx env_start %lx env_end %lx\n"
- "binfmt %p flags %lx core_state %p\n"
+ "binfmt %px flags %lx core_state %px\n"
#ifdef CONFIG_AIO
- "ioctx_table %p\n"
+ "ioctx_table %px\n"
#endif
#ifdef CONFIG_MEMCG
- "owner %p "
+ "owner %px "
#endif
- "exe_file %p\n"
+ "exe_file %px\n"
#ifdef CONFIG_MMU_NOTIFIER
- "mmu_notifier_mm %p\n"
+ "mmu_notifier_mm %px\n"
#endif
#ifdef CONFIG_NUMA_BALANCING
"numa_next_scan %lu numa_scan_offset %lu numa_scan_seq %d\n"
diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index d73c14294f3a..f656ca27f6c2 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -127,7 +127,7 @@
/* GFP bitmask for kmemleak internal allocations */
#define gfp_kmemleak_mask(gfp) (((gfp) & (GFP_KERNEL | GFP_ATOMIC)) | \
__GFP_NORETRY | __GFP_NOMEMALLOC | \
- __GFP_NOWARN)
+ __GFP_NOWARN | __GFP_NOFAIL)
/* scanning area inside a memory block */
struct kmemleak_scan_area {
diff --git a/mm/memory.c b/mm/memory.c
index ca5674cbaff2..793004608332 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2857,8 +2857,11 @@ int do_swap_page(struct vm_fault *vmf)
int ret = 0;
bool vma_readahead = swap_use_vma_readahead();
- if (vma_readahead)
+ if (vma_readahead) {
page = swap_readahead_detect(vmf, &swap_ra);
+ swapcache = page;
+ }
+
if (!pte_unmap_same(vma->vm_mm, vmf->pmd, vmf->pte, vmf->orig_pte)) {
if (page)
put_page(page);
@@ -2889,9 +2892,12 @@ int do_swap_page(struct vm_fault *vmf)
delayacct_set_flag(DELAYACCT_PF_SWAPIN);
- if (!page)
+ if (!page) {
page = lookup_swap_cache(entry, vma_readahead ? vma : NULL,
vmf->address);
+ swapcache = page;
+ }
+
if (!page) {
struct swap_info_struct *si = swp_swap_info(entry);
diff --git a/mm/mprotect.c b/mm/mprotect.c
index ec39f730a0bf..58b629bb70de 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -166,7 +166,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
next = pmd_addr_end(addr, end);
if (!is_swap_pmd(*pmd) && !pmd_trans_huge(*pmd) && !pmd_devmap(*pmd)
&& pmd_none_or_clear_bad(pmd))
- continue;
+ goto next;
/* invoke the mmu notifier if the pmd is populated */
if (!mni_start) {
@@ -188,7 +188,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
}
/* huge pmd was handled */
- continue;
+ goto next;
}
}
/* fall through, the trans huge pmd just split */
@@ -196,6 +196,8 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
this_pages = change_pte_range(vma, pmd, addr, next, newprot,
dirty_accountable, prot_numa);
pages += this_pages;
+next:
+ cond_resched();
} while (pmd++, addr = next, addr != end);
if (mni_start)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7e5e775e97f4..76c9688b6a0a 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -6260,6 +6260,8 @@ void __paginginit zero_resv_unavail(void)
pgcnt = 0;
for_each_resv_unavail_range(i, &start, &end) {
for (pfn = PFN_DOWN(start); pfn < PFN_UP(end); pfn++) {
+ if (!pfn_valid(ALIGN_DOWN(pfn, pageblock_nr_pages)))
+ continue;
mm_zero_struct_page(pfn_to_page(pfn));
pgcnt++;
}
diff --git a/mm/page_io.c b/mm/page_io.c
index e93f1a4cacd7..b41cf9644585 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -50,7 +50,7 @@ static struct bio *get_swap_bio(gfp_t gfp_flags,
void end_swap_bio_write(struct bio *bio)
{
- struct page *page = bio->bi_io_vec[0].bv_page;
+ struct page *page = bio_first_page_all(bio);
if (bio->bi_status) {
SetPageError(page);
@@ -122,7 +122,7 @@ static void swap_slot_free_notify(struct page *page)
static void end_swap_bio_read(struct bio *bio)
{
- struct page *page = bio->bi_io_vec[0].bv_page;
+ struct page *page = bio_first_page_all(bio);
struct task_struct *waiter = bio->bi_private;
if (bio->bi_status) {
diff --git a/mm/page_owner.c b/mm/page_owner.c
index 8592543a0f15..270a8219ccd0 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -616,7 +616,6 @@ static void init_early_allocated_pages(void)
{
pg_data_t *pgdat;
- drain_all_pages(NULL);
for_each_online_pgdat(pgdat)
init_zones_in_node(pgdat);
}
diff --git a/mm/page_vma_mapped.c b/mm/page_vma_mapped.c
index d22b84310f6d..ae3c2a35d61b 100644
--- a/mm/page_vma_mapped.c
+++ b/mm/page_vma_mapped.c
@@ -30,10 +30,37 @@ static bool map_pte(struct page_vma_mapped_walk *pvmw)
return true;
}
+static inline bool pfn_in_hpage(struct page *hpage, unsigned long pfn)
+{
+ unsigned long hpage_pfn = page_to_pfn(hpage);
+
+ /* THP can be referenced by any subpage */
+ return pfn >= hpage_pfn && pfn - hpage_pfn < hpage_nr_pages(hpage);
+}
+
+/**
+ * check_pte - check if @pvmw->page is mapped at the @pvmw->pte
+ *
+ * page_vma_mapped_walk() found a place where @pvmw->page is *potentially*
+ * mapped. check_pte() has to validate this.
+ *
+ * @pvmw->pte may point to empty PTE, swap PTE or PTE pointing to arbitrary
+ * page.
+ *
+ * If PVMW_MIGRATION flag is set, returns true if @pvmw->pte contains migration
+ * entry that points to @pvmw->page or any subpage in case of THP.
+ *
+ * If PVMW_MIGRATION flag is not set, returns true if @pvmw->pte points to
+ * @pvmw->page or any subpage in case of THP.
+ *
+ * Otherwise, return false.
+ *
+ */
static bool check_pte(struct page_vma_mapped_walk *pvmw)
{
+ unsigned long pfn;
+
if (pvmw->flags & PVMW_MIGRATION) {
-#ifdef CONFIG_MIGRATION
swp_entry_t entry;
if (!is_swap_pte(*pvmw->pte))
return false;
@@ -41,38 +68,25 @@ static bool check_pte(struct page_vma_mapped_walk *pvmw)
if (!is_migration_entry(entry))
return false;
- if (migration_entry_to_page(entry) - pvmw->page >=
- hpage_nr_pages(pvmw->page)) {
- return false;
- }
- if (migration_entry_to_page(entry) < pvmw->page)
- return false;
-#else
- WARN_ON_ONCE(1);
-#endif
- } else {
- if (is_swap_pte(*pvmw->pte)) {
- swp_entry_t entry;
- entry = pte_to_swp_entry(*pvmw->pte);
- if (is_device_private_entry(entry) &&
- device_private_entry_to_page(entry) == pvmw->page)
- return true;
- }
+ pfn = migration_entry_to_pfn(entry);
+ } else if (is_swap_pte(*pvmw->pte)) {
+ swp_entry_t entry;
- if (!pte_present(*pvmw->pte))
+ /* Handle un-addressable ZONE_DEVICE memory */
+ entry = pte_to_swp_entry(*pvmw->pte);
+ if (!is_device_private_entry(entry))
return false;
- /* THP can be referenced by any subpage */
- if (pte_page(*pvmw->pte) - pvmw->page >=
- hpage_nr_pages(pvmw->page)) {
- return false;
- }
- if (pte_page(*pvmw->pte) < pvmw->page)
+ pfn = device_private_entry_to_pfn(entry);
+ } else {
+ if (!pte_present(*pvmw->pte))
return false;
+
+ pfn = pte_pfn(*pvmw->pte);
}
- return true;
+ return pfn_in_hpage(pvmw->page, pfn);
}
/**
diff --git a/mm/sparse.c b/mm/sparse.c
index 7a5dacaa06e3..2609aba121e8 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -211,7 +211,7 @@ void __init memory_present(int nid, unsigned long start, unsigned long end)
if (unlikely(!mem_section)) {
unsigned long size, align;
- size = sizeof(struct mem_section) * NR_SECTION_ROOTS;
+ size = sizeof(struct mem_section*) * NR_SECTION_ROOTS;
align = 1 << (INTERNODE_CACHE_SHIFT);
mem_section = memblock_virt_alloc(size, align);
}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c02c850ea349..47d5ced51f2d 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -297,10 +297,13 @@ EXPORT_SYMBOL(register_shrinker);
*/
void unregister_shrinker(struct shrinker *shrinker)
{
+ if (!shrinker->nr_deferred)
+ return;
down_write(&shrinker_rwsem);
list_del(&shrinker->list);
up_write(&shrinker_rwsem);
kfree(shrinker->nr_deferred);
+ shrinker->nr_deferred = NULL;
}
EXPORT_SYMBOL(unregister_shrinker);
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 685049a9048d..683c0651098c 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -53,6 +53,7 @@
#include <linux/mount.h>
#include <linux/migrate.h>
#include <linux/pagemap.h>
+#include <linux/fs.h>
#define ZSPAGE_MAGIC 0x58
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-17 04:15:03 +0000