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authorLinus Torvalds <torvalds@linux-foundation.org>2020-03-06 07:18:36 -0600
committerLinus Torvalds <torvalds@linux-foundation.org>2020-03-06 07:18:36 -0600
commitaeb542a1b5c507ea117d21c3e3e012ba16f065ac (patch)
tree5299600957d34a4eea5f6d2f2771d277f8a6bc8a /include
parentb0b8a945ea29166706611820e609bce23e278f6b (diff)
parent140d7e88bb2ac4af7b0db1fd6302179440f3c4be (diff)
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton: "7 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: arch/Kconfig: update HAVE_RELIABLE_STACKTRACE description mm, hotplug: fix page online with DEBUG_PAGEALLOC compiled but not enabled mm/z3fold.c: do not include rwlock.h directly fat: fix uninit-memory access for partial initialized inode mm: avoid data corruption on CoW fault into PFN-mapped VMA mm: fix possible PMD dirty bit lost in set_pmd_migration_entry() mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa
Diffstat (limited to 'include')
-rw-r--r--include/linux/mm.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 52269e56c514..c54fb96cb1e6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2715,6 +2715,10 @@ static inline bool debug_pagealloc_enabled_static(void)
#if defined(CONFIG_DEBUG_PAGEALLOC) || defined(CONFIG_ARCH_HAS_SET_DIRECT_MAP)
extern void __kernel_map_pages(struct page *page, int numpages, int enable);
+/*
+ * When called in DEBUG_PAGEALLOC context, the call should most likely be
+ * guarded by debug_pagealloc_enabled() or debug_pagealloc_enabled_static()
+ */
static inline void
kernel_map_pages(struct page *page, int numpages, int enable)
{