1 files changed, 6 insertions, 0 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 57c3129ee2a2..2ac260d41ccd 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4674,6 +4674,11 @@ static void evict_inode_truncate_pages(struct inode *inode)
                 clear_bit(EXTENT_FLAG_LOGGING, &em->flags);
                 remove_extent_mapping(map_tree, em);
                 free_extent_map(em);
+                if (need_resched()) {
+                        write_unlock(&map_tree->lock);
+                        cond_resched();
+                        write_lock(&map_tree->lock);
+                }
         }
         write_unlock(&map_tree->lock);
 
@@ -4696,6 +4701,7 @@ static void evict_inode_truncate_pages(struct inode *inode)
                                  &cached_state, GFP_NOFS);
                 free_extent_state(state);
 
+                cond_resched();
                 spin_lock(&io_tree->lock);
         }
         spin_unlock(&io_tree->lock);