Merge remote-tracking branch 'linus/master' into testing

1 files changed, 6 insertions, 2 deletions

diff --git a/fs/ext3/fsync.c b/fs/ext3/fsync.c
index b31dbd4c46ad..1cb9c7e10c6f 100644
--- a/fs/ext3/fsync.c
+++ b/fs/ext3/fsync.c
@@ -48,9 +48,13 @@ int ext3_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 
         trace_ext3_sync_file_enter(file, datasync);
 
-        if (inode->i_sb->s_flags & MS_RDONLY)
+        if (inode->i_sb->s_flags & MS_RDONLY) {
+                /* Make sure that we read updated state */
+                smp_rmb();
+                if (EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS)
+                        return -EROFS;
                 return 0;
-
+        }
         ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
         if (ret)
                 goto out;