In srhink_delalloc(), writeback starts if idle, also check the bdi is
not write congested.
The patch is against the head of the btrfs-next.
Signed-off-by: Itaru Kitayama <kitay...@cl.bb4u.ne.jp>
fs/btrfs/extent-tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index efb044e..caa74d3 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3712,7 +3712,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 t
while (delalloc_bytes && loops < 3) {
max_reclaim = min(delalloc_bytes, to_reclaim);
nr_pages = max_reclaim >> PAGE_CACHE_SHIFT;
- writeback_inodes_sb_nr_if_idle(root->fs_info->sb, nr_pages,
+ if (!bdi_write_congested(root->fs_info->sb->s_bdi)) writeback_in
WB_REASON_FS_FREE_SPACE);
/*
--
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