1 files changed, 8 insertions, 4 deletions

diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 7c068c189d80..6494c81e3b0a 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -26,7 +26,9 @@
 #include <linux/backing-dev.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
+#include <linux/bitops.h>
 #include <trace/events/jbd2.h>
+#include <asm/system.h>
 
 /*
  * Default IO end handler for temporary BJ_IO buffer_heads.
@@ -236,7 +238,7 @@ static int journal_submit_data_buffers(journal_t *journal,
         spin_lock(&journal->j_list_lock);
         list_for_each_entry(jinode, &commit_transaction->t_inode_list, i_list) {
                 mapping = jinode->i_vfs_inode->i_mapping;
-                jinode->i_flags |= JI_COMMIT_RUNNING;
+                set_bit(__JI_COMMIT_RUNNING, &jinode->i_flags);
                 spin_unlock(&journal->j_list_lock);
                 /*
                  * submit the inode data buffers. We use writepage
@@ -251,7 +253,8 @@ static int journal_submit_data_buffers(journal_t *journal,
                 spin_lock(&journal->j_list_lock);
                 J_ASSERT(jinode->i_transaction == commit_transaction);
                 commit_transaction->t_flushed_data_blocks = 1;
-                jinode->i_flags &= ~JI_COMMIT_RUNNING;
+                clear_bit(__JI_COMMIT_RUNNING, &jinode->i_flags);
+                smp_mb__after_clear_bit();
                 wake_up_bit(&jinode->i_flags, __JI_COMMIT_RUNNING);
         }
         spin_unlock(&journal->j_list_lock);
@@ -272,7 +275,7 @@ static int journal_finish_inode_data_buffers(journal_t *journal,
         /* For locking, see the comment in journal_submit_data_buffers() */
         spin_lock(&journal->j_list_lock);
         list_for_each_entry(jinode, &commit_transaction->t_inode_list, i_list) {
-                jinode->i_flags |= JI_COMMIT_RUNNING;
+                set_bit(__JI_COMMIT_RUNNING, &jinode->i_flags);
                 spin_unlock(&journal->j_list_lock);
                 err = filemap_fdatawait(jinode->i_vfs_inode->i_mapping);
                 if (err) {
@@ -288,7 +291,8 @@ static int journal_finish_inode_data_buffers(journal_t *journal,
                                 ret = err;
                 }
                 spin_lock(&journal->j_list_lock);
-                jinode->i_flags &= ~JI_COMMIT_RUNNING;
+                clear_bit(__JI_COMMIT_RUNNING, &jinode->i_flags);
+                smp_mb__after_clear_bit();
                 wake_up_bit(&jinode->i_flags, __JI_COMMIT_RUNNING);
         }