summaryrefslogtreecommitdiff
path: root/mm/migrate.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2020-06-02 12:21:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-02 12:21:36 -0700
commit94709049fb8442fb2f7b91fbec3c2897a75e18df (patch)
treef1d38ea6bc9db6d5a15ba4821c83abeb7ce7fd35 /mm/migrate.c
parent17839856fd588f4ab6b789f482ed3ffd7c403e1f (diff)
parent4fba37586e4e73f9f9a855e610e151ef7da2b481 (diff)
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: "A few little subsystems and a start of a lot of MM patches. Subsystems affected by this patch series: squashfs, ocfs2, parisc, vfs. With mm subsystems: slab-generic, slub, debug, pagecache, gup, swap, memcg, pagemap, memory-failure, vmalloc, kasan" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (128 commits) kasan: move kasan_report() into report.c mm/mm_init.c: report kasan-tag information stored in page->flags ubsan: entirely disable alignment checks under UBSAN_TRAP kasan: fix clang compilation warning due to stack protector x86/mm: remove vmalloc faulting mm: remove vmalloc_sync_(un)mappings() x86/mm/32: implement arch_sync_kernel_mappings() x86/mm/64: implement arch_sync_kernel_mappings() mm/ioremap: track which page-table levels were modified mm/vmalloc: track which page-table levels were modified mm: add functions to track page directory modifications s390: use __vmalloc_node in stack_alloc powerpc: use __vmalloc_node in alloc_vm_stack arm64: use __vmalloc_node in arch_alloc_vmap_stack mm: remove vmalloc_user_node_flags mm: switch the test_vmalloc module to use __vmalloc_node mm: remove __vmalloc_node_flags_caller mm: remove both instances of __vmalloc_node_flags mm: remove the prot argument to __vmalloc_node mm: remove the pgprot argument to __vmalloc ...
Diffstat (limited to 'mm/migrate.c')
-rw-r--r--mm/migrate.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index 7160c1556f79..fb425d86c115 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -797,10 +797,7 @@ recheck_buffers:
if (rc != MIGRATEPAGE_SUCCESS)
goto unlock_buffers;
- ClearPagePrivate(page);
- set_page_private(newpage, page_private(page));
- set_page_private(page, 0);
- put_page(page);
+ attach_page_private(newpage, detach_page_private(page));
get_page(newpage);
bh = head;
@@ -810,8 +807,6 @@ recheck_buffers:
} while (bh != head);
- SetPagePrivate(newpage);
-
if (mode != MIGRATE_SYNC_NO_COPY)
migrate_page_copy(newpage, page);
else
@@ -1032,7 +1027,7 @@ static int __unmap_and_move(struct page *page, struct page *newpage,
* to the LRU. Later, when the IO completes the pages are
* marked uptodate and unlocked. However, the queueing
* could be merging multiple pages for one bio (e.g.
- * mpage_readpages). If an allocation happens for the
+ * mpage_readahead). If an allocation happens for the
* second or third page, the process can end up locking
* the same page twice and deadlocking. Rather than
* trying to be clever about what pages can be locked,