Btrfs: Throttle file_write when data=ordered is flushing the inode

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index d58b4d5a1fef..b31f52d4f2ca 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1419,6 +1419,7 @@ static int btrfs_init_locked_inode(struct inode *inode, void *p)
                              inode->i_mapping, GFP_NOFS);
         extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,
                              inode->i_mapping, GFP_NOFS);
+        atomic_set(&BTRFS_I(inode)->ordered_writeback, 0);
         return 0;
 }
 
@@ -1728,6 +1729,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
                              inode->i_mapping, GFP_NOFS);
         extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,
                              inode->i_mapping, GFP_NOFS);
+        atomic_set(&BTRFS_I(inode)->ordered_writeback, 0);
         BTRFS_I(inode)->delalloc_bytes = 0;
         BTRFS_I(inode)->root = root;
 
@@ -1956,6 +1958,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
                 extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,
                                      inode->i_mapping, GFP_NOFS);
                 BTRFS_I(inode)->delalloc_bytes = 0;
+                atomic_set(&BTRFS_I(inode)->ordered_writeback, 0);
                 BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
         }
         dir->i_sb->s_dirt = 1;
@@ -3292,6 +3295,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
                 extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,
                                      inode->i_mapping, GFP_NOFS);
                 BTRFS_I(inode)->delalloc_bytes = 0;
+                atomic_set(&BTRFS_I(inode)->ordered_writeback, 0);
                 BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
         }
         dir->i_sb->s_dirt = 1;