use BLKGETSIZE64 to allow detecting partitions bigger than 2TB, and use

"double" instead of "unsigned int" (nb: it means we will use doubles instead
of ints for computing things, this works quite nicely up to 100_000TB

doing this in perl so that there is no need to recompile stuff.so

1 files changed, 24 insertions, 0 deletions

diff --git a/perl-install/patch/patch-2006-above-2TB.pl b/perl-install/patch/patch-2006-above-2TB.pl
new file mode 100644
index 000000000..894ebf1ce
--- /dev/null
+++ b/perl-install/patch/patch-2006-above-2TB.pl
@@ -0,0 +1,24 @@
+log::l("PATCH: 2006-fix-parsing-dmraid");
+
+use log;
+
+undef *c::total_sectors;
+*c::total_sectors = sub {
+    my ($fd) = @_;
+
+    use log;
+    log::l("PATCH: total_sectors");
+    my ($BLKGETSIZE, $BLKGETSIZE64) = (0x1260, 0x80041272);
+
+    open(my $F, "<& $fd") or return;
+    my $ll = '';
+    if (ioctl($F, $BLKGETSIZE64, $ll)) {
+	my ($v, $v1) = unpack("L2", $ll);
+	$v1 * 1024 * 1024 * 8 + $v / 512;
+    } elsif (ioctl($F, $BLKGETSIZE, $ll)) {
+	log::l("defaulting to BLKGETSIZE");
+	unpack("L", $ll);
+    } else {
+	0;
+    }
+};