From: Nikolay Borisov Date: Thu, 28 May 2020 08:05:13 +0000 (+0300) Subject: btrfs: don't balance btree inode pages from buffered write path X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=6a3c7f5c87854e948c3c234e5f5e745c7c553722;p=uclinux-h8%2Flinux.git btrfs: don't balance btree inode pages from buffered write path The call to btrfs_btree_balance_dirty has been there since the early days of BTRFS, when the btree was directly modified from the write path, hence dirtied btree inode pages. With the implementation of b888db2bd7b6 ("Btrfs: Add delayed allocation to the extent based page tree code") 13 years ago the btree is no longer modified from the write path, hence there is no point in calling this function. Just remove it. Signed-off-by: Nikolay Borisov Signed-off-by: David Sterba --- diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index b0d2c976587e..52422e2b3344 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1800,8 +1800,6 @@ again: cond_resched(); balance_dirty_pages_ratelimited(inode->i_mapping); - if (dirty_pages < (fs_info->nodesize >> PAGE_SHIFT) + 1) - btrfs_btree_balance_dirty(fs_info); pos += copied; num_written += copied;