The patch titled
Subject: mm: replace PAGE_MIGRATION with IS_ENABLED(CONFIG_MIGRATION)
has been removed from the -mm tree. Its filename was
mm-replace-page_migration-with-is_enabledconfig_migration.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
From: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
Subject: mm: replace PAGE_MIGRATION with IS_ENABLED(CONFIG_MIGRATION)
Since 2a11c8e ("kconfig: Introduce IS_ENABLED(), IS_BUILTIN() and
IS_MODULE()") there is a generic grep-friendly method for checking config
options in C expressions.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/migrate.h | 2 --
mm/mprotect.c | 2 +-
mm/rmap.c | 7 ++++---
3 files changed, 5 insertions(+), 6 deletions(-)
diff -puN include/linux/migrate.h~mm-replace-page_migration-with-is_enabledconfig_migration include/linux/migrate.h
--- a/include/linux/migrate.h~mm-replace-page_migration-with-is_enabledconfig_migration
+++ a/include/linux/migrate.h
@@ -8,7 +8,6 @@
typedef struct page *new_page_t(struct page *, unsigned long private, int **);
#ifdef CONFIG_MIGRATION
-#define PAGE_MIGRATION 1
extern void putback_lru_pages(struct list_head *l);
extern int migrate_page(struct address_space *,
@@ -32,7 +31,6 @@ extern void migrate_page_copy(struct pag
extern int migrate_huge_page_move_mapping(struct address_space *mapping,
struct page *newpage, struct page *page);
#else
-#define PAGE_MIGRATION 0
static inline void putback_lru_pages(struct list_head *l) {}
static inline int migrate_pages(struct list_head *l, new_page_t x,
diff -puN mm/mprotect.c~mm-replace-page_migration-with-is_enabledconfig_migration mm/mprotect.c
--- a/mm/mprotect.c~mm-replace-page_migration-with-is_enabledconfig_migration
+++ a/mm/mprotect.c
@@ -60,7 +60,7 @@ static void change_pte_range(struct mm_s
ptent = pte_mkwrite(ptent);
ptep_modify_prot_commit(mm, addr, pte, ptent);
- } else if (PAGE_MIGRATION && !pte_file(oldpte)) {
+ } else if (IS_ENABLED(CONFIG_MIGRATION) && !pte_file(oldpte)) {
swp_entry_t entry = pte_to_swp_entry(oldpte);
if (is_write_migration_entry(entry)) {
diff -puN mm/rmap.c~mm-replace-page_migration-with-is_enabledconfig_migration mm/rmap.c
--- a/mm/rmap.c~mm-replace-page_migration-with-is_enabledconfig_migration
+++ a/mm/rmap.c
@@ -1282,7 +1282,7 @@ int try_to_unmap_one(struct page *page,
}
dec_mm_counter(mm, MM_ANONPAGES);
inc_mm_counter(mm, MM_SWAPENTS);
- } else if (PAGE_MIGRATION) {
+ } else if (IS_ENABLED(CONFIG_MIGRATION)) {
/*
* Store the pfn of the page in a special migration
* pte. do_swap_page() will wait until the migration
@@ -1293,7 +1293,8 @@ int try_to_unmap_one(struct page *page,
}
set_pte_at(mm, address, pte, swp_entry_to_pte(entry));
BUG_ON(pte_file(*pte));
- } else if (PAGE_MIGRATION && (TTU_ACTION(flags) == TTU_MIGRATION)) {
+ } else if (IS_ENABLED(CONFIG_MIGRATION) &&
+ (TTU_ACTION(flags) == TTU_MIGRATION)) {
/* Establish migration entry for a file page */
swp_entry_t entry;
entry = make_migration_entry(page, pte_write(pteval));
@@ -1499,7 +1500,7 @@ static int try_to_unmap_anon(struct page
* locking requirements of exec(), migration skips
* temporary VMAs until after exec() completes.
*/
- if (PAGE_MIGRATION && (flags & TTU_MIGRATION) &&
+ if (IS_ENABLED(CONFIG_MIGRATION) && (flags & TTU_MIGRATION) &&
is_vma_temporary_stack(vma))
continue;
_
Patches currently in -mm which might be from khlebnikov@xxxxxxxxxx are
origin.patch
linux-next.patch
mm-fix-page-faults-detection-in-swap-token-logic.patch
radix-tree-introduce-bit-optimized-iterator.patch
radix-tree-introduce-bit-optimized-iterator-v3.patch
radix-tree-introduce-bit-optimized-iterator-v3-fix.patch
radix-tree-rewrite-gang-lookup-with-using-iterator.patch
radix-tree-use-iterators-in-find_get_pages-functions.patch
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