tree f87d0001ed6d05e5e16d7b1b3bccb745889b9315
parent a944442c2b8a420301e7830f976bab8cc86a2b4d
author Qu Wenruo <wqu@suse.com> 1528261992 +0800
committer David Sterba <dsterba@suse.com> 1533553949 +0200

btrfs: scrub: Remove unused copy_nocow_pages and its callchain

Since commit ac0b4145d662a3b9e340 ("btrfs: scrub: Don't use inode pages
for device replace") the function is not used and we can remove all
functions down the call chain.

There was an optimization that reused inode pages to speed up device
replace, but broke when there was nodatasum and compressed page. The
potential performance gain is small so we don't loose much by removing
it and using scrub_pages same as the other pages.

Signed-off-by: Qu Wenruo <wqu@suse.com>
[ update changelog ]
Signed-off-by: David Sterba <dsterba@suse.com>