summaryrefslogtreecommitdiff
path: root/include/linux/page-flags.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2022-01-15 20:37:06 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-15 20:37:06 +0200
commitf56caedaf94f9ced5dbfcdb0060a3e788d2078af (patch)
treee213532d1b3d32f9f0e81948f3b23804baff287d /include/linux/page-flags.h
parenta33f5c380c4bd3fa5278d690421b72052456d9fe (diff)
parent76fd0285b447991267e838842c0be7395eb454bb (diff)
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: "146 patches. Subsystems affected by this patch series: kthread, ia64, scripts, ntfs, squashfs, ocfs2, vfs, and mm (slab-generic, slab, kmemleak, dax, kasan, debug, pagecache, gup, shmem, frontswap, memremap, memcg, selftests, pagemap, dma, vmalloc, memory-failure, hugetlb, userfaultfd, vmscan, mempolicy, oom-kill, hugetlbfs, migration, thp, ksm, page-poison, percpu, rmap, zswap, zram, cleanups, hmm, and damon)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (146 commits) mm/damon: hide kernel pointer from tracepoint event mm/damon/vaddr: hide kernel pointer from damon_va_three_regions() failure log mm/damon/vaddr: use pr_debug() for damon_va_three_regions() failure logging mm/damon/dbgfs: remove an unnecessary variable mm/damon: move the implementation of damon_insert_region to damon.h mm/damon: add access checking for hugetlb pages Docs/admin-guide/mm/damon/usage: update for schemes statistics mm/damon/dbgfs: support all DAMOS stats Docs/admin-guide/mm/damon/reclaim: document statistics parameters mm/damon/reclaim: provide reclamation statistics mm/damon/schemes: account how many times quota limit has exceeded mm/damon/schemes: account scheme actions that successfully applied mm/damon: remove a mistakenly added comment for a future feature Docs/admin-guide/mm/damon/usage: update for kdamond_pid and (mk|rm)_contexts Docs/admin-guide/mm/damon/usage: mention tracepoint at the beginning Docs/admin-guide/mm/damon/usage: remove redundant information Docs/admin-guide/mm/damon/usage: update for scheme quotas and watermarks mm/damon: convert macro functions to static inline functions mm/damon: modify damon_rand() macro to static inline function mm/damon: move damon_rand() definition into damon.h ...
Diffstat (limited to 'include/linux/page-flags.h')
-rw-r--r--include/linux/page-flags.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index b3d353d537e2..129421002443 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -380,7 +380,7 @@ static __always_inline int TestClearPage##uname(struct page *page) \
TESTCLEARFLAG(uname, lname, policy)
#define TESTPAGEFLAG_FALSE(uname, lname) \
-static inline bool folio_test_##lname(const struct folio *folio) { return 0; } \
+static inline bool folio_test_##lname(const struct folio *folio) { return false; } \
static inline int Page##uname(const struct page *page) { return 0; }
#define SETPAGEFLAG_NOOP(uname, lname) \
@@ -519,7 +519,11 @@ PAGEFLAG_FALSE(Uncached, uncached)
PAGEFLAG(HWPoison, hwpoison, PF_ANY)
TESTSCFLAG(HWPoison, hwpoison, PF_ANY)
#define __PG_HWPOISON (1UL << PG_hwpoison)
+#define MAGIC_HWPOISON 0x48575053U /* HWPS */
+extern void SetPageHWPoisonTakenOff(struct page *page);
+extern void ClearPageHWPoisonTakenOff(struct page *page);
extern bool take_page_off_buddy(struct page *page);
+extern bool put_page_back_buddy(struct page *page);
#else
PAGEFLAG_FALSE(HWPoison, hwpoison)
#define __PG_HWPOISON 0