Merge 5.0-rc2 into driver-core-next

We want the driver core changes in that branch in here to build on top
of.

Signed-off-by: Greg Kroah-Hartman <[email protected]>

1 files changed, 2 insertions, 14 deletions

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index 6379fff1a5ff..7c72f2a95785 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -966,7 +966,7 @@ static bool hwpoison_user_mappings(struct page *p, unsigned long pfn,
 	enum ttu_flags ttu = TTU_IGNORE_MLOCK | TTU_IGNORE_ACCESS;
 	struct address_space *mapping;
 	LIST_HEAD(tokill);
-	bool unmap_success = true;
+	bool unmap_success;
 	int kill = 1, forcekill;
 	struct page *hpage = *hpagep;
 	bool mlocked = PageMlocked(hpage);
@@ -1028,19 +1028,7 @@ static bool hwpoison_user_mappings(struct page *p, unsigned long pfn,
 	if (kill)
 		collect_procs(hpage, &tokill, flags & MF_ACTION_REQUIRED);
 
-	if (!PageHuge(hpage)) {
-		unmap_success = try_to_unmap(hpage, ttu);
-	} else if (mapping) {
-		/*
-		 * For hugetlb pages, try_to_unmap could potentially call
-		 * huge_pmd_unshare.  Because of this, take semaphore in
-		 * write mode here and set TTU_RMAP_LOCKED to indicate we
-		 * have taken the lock at this higer level.
-		 */
-		i_mmap_lock_write(mapping);
-		unmap_success = try_to_unmap(hpage, ttu|TTU_RMAP_LOCKED);
-		i_mmap_unlock_write(mapping);
-	}
+	unmap_success = try_to_unmap(hpage, ttu);
 	if (!unmap_success)
 		pr_err("Memory failure: %#lx: failed to unmap page (mapcount=%d)\n",
 		       pfn, page_mapcount(hpage));