Btrfs: use percpu counter for fs_info->delalloc_bytes

[linux-2.6-block.git] / fs / btrfs / inode.c

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index fc8aa8bf80a1d0919a2550bdf07faed5289ca25c..24c0b7805fe190259d3838faa7c47f0b85642e7f 100644 (file)
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1516,7 +1516,8 @@ static void btrfs_set_bit_hook(struct inode *inode,
 
                spin_lock(&root->fs_info->delalloc_lock);
                BTRFS_I(inode)->delalloc_bytes += len;
-               root->fs_info->delalloc_bytes += len;
+               __percpu_counter_add(&root->fs_info->delalloc_bytes, len,
+                                    root->fs_info->delalloc_batch);
                if (do_list && list_empty(&BTRFS_I(inode)->delalloc_inodes)) {
                        list_add_tail(&BTRFS_I(inode)->delalloc_inodes,
                                      &root->fs_info->delalloc_inodes);
@@ -1557,7 +1558,8 @@ static void btrfs_clear_bit_hook(struct inode *inode,
                        btrfs_free_reserved_data_space(inode, len);
 
                spin_lock(&root->fs_info->delalloc_lock);
-               root->fs_info->delalloc_bytes -= len;
+               __percpu_counter_add(&root->fs_info->delalloc_bytes, -len,
+                                    root->fs_info->delalloc_batch);
                BTRFS_I(inode)->delalloc_bytes -= len;
 
                if (do_list && BTRFS_I(inode)->delalloc_bytes == 0 &&