Commit 6a3c7f5c authored May 28, 2020 by Nikolay Borisov Committed by David Sterba Jul 27, 2020

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 b888db2b
("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 <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

parent 92ed3019

fs/btrfs/file.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -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;

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