3 files changed, 12 insertions, 6 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);
         }
 
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 0e8014ea6b94..75e1b5a0bc2d 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -42,12 +42,14 @@
 #include <linux/log2.h>
 #include <linux/vmalloc.h>
 #include <linux/backing-dev.h>
+#include <linux/bitops.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/jbd2.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
+#include <asm/system.h>
 
 EXPORT_SYMBOL(jbd2_journal_extend);
 EXPORT_SYMBOL(jbd2_journal_stop);
@@ -2206,7 +2208,7 @@ void jbd2_journal_release_jbd_inode(journal_t *journal,
 restart:
         spin_lock(&journal->j_list_lock);
         /* Is commit writing out inode - we have to wait */
-        if (jinode->i_flags & JI_COMMIT_RUNNING) {
+        if (test_bit(__JI_COMMIT_RUNNING, &jinode->i_flags)) {
                 wait_queue_head_t *wq;
                 DEFINE_WAIT_BIT(wait, &jinode->i_flags, __JI_COMMIT_RUNNING);
                 wq = bit_waitqueue(&jinode->i_flags, __JI_COMMIT_RUNNING);
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 0b52924a0cb6..2ae86aa21fce 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -395,7 +395,7 @@ struct jbd2_inode {
         struct inode *i_vfs_inode;
 
         /* Flags of inode [j_list_lock] */
-        unsigned int i_flags;
+        unsigned long i_flags;
 };
 
 struct jbd2_revoke_table_s;