1 files changed, 0 insertions, 34 deletions
diff --git a/lib/PublicInbox/NDC_PP.pm b/lib/PublicInbox/NDC_PP.pm
deleted file mode 100644
index 57abccbe..00000000
--- a/lib/PublicInbox/NDC_PP.pm
+++ /dev/null
@@ -1,34 +0,0 @@
-# Copyright (C) 2020-2021 all contributors <meta@public-inbox.org>
-# License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
-
-# Pure-perl class for Linux non-Inline::C users to disable COW for btrfs
-package PublicInbox::NDC_PP;
-use strict;
-use v5.10.1;
-
-sub nodatacow_dir ($) {
-        my ($path) = @_;
-        open my $mh, '<', '/proc/self/mounts' or return;
-        for (grep(/ btrfs /, <$mh>)) {
-                my (undef, $mnt_path, $type) = split(/ /);
-                next if $type ne 'btrfs'; # in case of false-positive from grep
-
-                # weird chars are escaped as octal
-                $mnt_path =~ s/\\(0[0-9]{2})/chr(oct($1))/egs;
-                $mnt_path .= '/' unless $mnt_path =~ m!/\z!;
-                if (index($path, $mnt_path) == 0) {
-                        # error goes to stderr, but non-fatal for us
-                        system('chattr', '+C', $path);
-                        last;
-                }
-        }
-}
-
-sub nodatacow_fd ($) {
-        my ($fd) = @_;
-        return if $^O ne 'linux';
-        defined(my $path = readlink("/proc/self/fd/$fd")) or return;
-        nodatacow_dir($path);
-}
-
-1;