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btrbk
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btrbk: reuse subvol list for get_receive_targets() 

performance win: factor 2.6 !
pull/88/head
Axel Burri 2016-04-19 13:42:18 +02:00
parent 2b22524ccd
commit c225231742
1 changed files with 11 additions and 7 deletions
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btrbk
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@ -1832,7 +1832,7 @@ sub get_receive_targets($$;@)
my $droot = shift || die;
my $src_vol = shift || die;
my %opts = @_;
my $droot_subvols = vinfo_subvol_list($droot);
my $droot_subvols = $opts{droot_subvol_list} // vinfo_subvol_list($droot);
my @ret;
my $unexpected_count = 0;
@ -1970,12 +1970,13 @@ sub get_latest_common($$$;$)
}
}
my $droot_subvol_list = vinfo_subvol_list($droot); # cache subvol list
foreach my $child (@candidate) {
if($child->{node}{id} == $svol->{node}{id}) {
TRACE "get_latest_common: skip self: $child->{PRINT}";
next;
}
my @receive_targets = get_receive_targets($droot, $child);
my @receive_targets = get_receive_targets($droot, $child, droot_subvol_list => $droot_subvol_list);
if(scalar @receive_targets) {
DEBUG("Latest common subvolumes for: $svol->{PRINT}: src=$child->{PRINT} target=$receive_targets[0]->{PRINT}");
return ($child, $receive_targets[0]);
@ -2660,13 +2661,14 @@ sub macro_archive_target($$$;$)
# NOTE: this is pretty much the same as "resume missing"
my @unexpected_location;
my $droot_subvol_list = vinfo_subvol_list($droot); # cache subvol list for get_receive_targets()
foreach my $svol (@{vinfo_subvol_list($sroot, sort => 'path')})
{
next unless($svol->{node}{readonly});
next unless($svol->{btrbk_direct_leaf} && ($svol->{BTRBK_BASENAME} eq $snapshot_name));
my $warning_seen = [];
my @receive_targets = get_receive_targets($droot, $svol, exact_match => 1, warn => 1, seen => $warning_seen );
my @receive_targets = get_receive_targets($droot, $svol, exact_match => 1, warn => 1, seen => $warning_seen, droot_subvol_list => $droot_subvol_list );
push @unexpected_location, get_receive_targets_fsroot($droot, $svol, exclude => $warning_seen, warn => 1); # warn if unexpected on fs
next if(scalar(@receive_targets));
@ -2685,7 +2687,7 @@ sub macro_archive_target($$$;$)
}
# add all present archives as informative_only: these are needed for correct results of schedule()
foreach my $dvol (@{vinfo_subvol_list($droot)})
foreach my $dvol (@$droot_subvol_list)
{
next unless($dvol->{btrbk_direct_leaf} && ($dvol->{BTRBK_BASENAME} eq $snapshot_name));
next unless($dvol->{node}{readonly});
@ -4602,10 +4604,11 @@ MAIN:
my $resume_total = 0;
my $resume_success = 0;
my $droot_subvol_list = vinfo_subvol_list($droot); # cache subvol list for get_receive_targets()
foreach my $child (@snapshot_children)
{
my $warning_seen = [];
my @receive_targets = get_receive_targets($droot, $child, exact_match => 1, warn => 1, seen => $warning_seen );
my @receive_targets = get_receive_targets($droot, $child, exact_match => 1, warn => 1, seen => $warning_seen, droot_subvol_list => $droot_subvol_list );
get_receive_targets_fsroot($droot, $child, exclude => $warning_seen, warn => 1); # warn on unexpected on fs
if(scalar(@receive_targets)){
DEBUG "Found receive target of: $child->{PRINT}";
@ -4624,7 +4627,7 @@ MAIN:
{
DEBUG "Checking schedule for backup candidates";
# add all present backups as informative_only: these are needed for correct results of schedule()
foreach my $vol (@{vinfo_subvol_list($droot)}) {
foreach my $vol (@$droot_subvol_list) {
unless($vol->{btrbk_direct_leaf} && ($vol->{BTRBK_BASENAME} eq $snapshot_basename)) {
TRACE "Receive target does not match btrbk filename scheme, skipping: $vol->{PRINT}";
next;
@ -4713,8 +4716,9 @@ MAIN:
}
# always preserve latest common snapshot/backup pair
my $droot_subvol_list = vinfo_subvol_list($droot); # cache subvol list for get_receive_targets()
foreach my $child (@snapshot_children) {
my @receive_targets = get_receive_targets($droot, $child);
my @receive_targets = get_receive_targets($droot, $child, droot_subvol_list => $droot_subvol_list);
if(scalar(@receive_targets)) {
DEBUG "Force preserve for latest common snapshot: $child->{PRINT}";
$child->{node}{FORCE_PRESERVE} = 'preserve forced: latest common snapshot';