1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 7878712721bf..6d03774b176e 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1106,10 +1106,12 @@ void bitmap_write_all(struct bitmap *bitmap)
          */
         int i;
 
+        spin_lock_irq(&bitmap->lock);
         for (i = 0; i < bitmap->file_pages; i++)
                 set_page_attr(bitmap, bitmap->filemap[i],
                               BITMAP_PAGE_NEEDWRITE);
         bitmap->allclean = 0;
+        spin_unlock_irq(&bitmap->lock);
 }
 
 static void bitmap_count_page(struct bitmap *bitmap, sector_t offset, int inc)
@@ -1391,9 +1393,6 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto
                          atomic_read(&bitmap->behind_writes),
                          bitmap->mddev->bitmap_info.max_write_behind);
         }
-        if (bitmap->mddev->degraded)
-                /* Never clear bits or update events_cleared when degraded */
-                success = 0;
 
         while (sectors) {
                 sector_t blocks;
@@ -1407,7 +1406,7 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto
                         return;
                 }
 
-                if (success &&
+                if (success && !bitmap->mddev->degraded &&
                     bitmap->events_cleared < bitmap->mddev->events) {
                         bitmap->events_cleared = bitmap->mddev->events;
                         bitmap->need_sync = 1;
@@ -1605,7 +1604,9 @@ void bitmap_dirty_bits(struct bitmap *bitmap, unsigned long s, unsigned long e)
         for (chunk = s; chunk <= e; chunk++) {
                 sector_t sec = (sector_t)chunk << CHUNK_BLOCK_SHIFT(bitmap);
                 bitmap_set_memory_bits(bitmap, sec, 1);
+                spin_lock_irq(&bitmap->lock);
                 bitmap_file_set_bit(bitmap, sec);
+                spin_unlock_irq(&bitmap->lock);
                 if (sec < bitmap->mddev->recovery_cp)
                         /* We are asserting that the array is dirty,
                          * so move the recovery_cp address back so