Merge commit 'v2.6.29-rc1' into sched/urgent
diff --git a/Makefile b/Makefile
index 2833128..c06e250 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
VERSION = 2
PATCHLEVEL = 6
-SUBLEVEL = 28
-EXTRAVERSION =
+SUBLEVEL = 29
+EXTRAVERSION = -rc1
NAME = Erotic Pickled Herring
# *DOCUMENTATION*
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 7f701cb..9603967 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -2660,6 +2660,9 @@
host->iomap = pcim_iomap_table(pdev);
host->private_data = hpriv;
+ if (!(hpriv->cap & HOST_CAP_SSS))
+ host->flags |= ATA_HOST_PARALLEL_SCAN;
+
if (pi.flags & ATA_FLAG_EM)
ahci_reset_em(host);
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index c507a9a..71218d7 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -5920,6 +5920,17 @@
{
int rc;
struct ata_port *ap = data;
+
+ /*
+ * If we're not allowed to scan this host in parallel,
+ * we need to wait until all previous scans have completed
+ * before going further.
+ * Jeff Garzik says this is only within a controller, so we
+ * don't need to wait for port 0, only for later ports.
+ */
+ if (!(ap->host->flags & ATA_HOST_PARALLEL_SCAN) && ap->port_no != 0)
+ async_synchronize_cookie(cookie);
+
/* probe */
if (ap->ops->error_handler) {
struct ata_eh_info *ehi = &ap->link.eh_info;
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 4f7c8fb..b6b8a7f 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -239,6 +239,7 @@
/* host set flags */
ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */
ATA_HOST_STARTED = (1 << 1), /* Host started */
+ ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */
/* bits 24:31 of host->flags are reserved for LLD specific flags */
diff --git a/scripts/bootgraph.pl b/scripts/bootgraph.pl
index 0a498e3..b024630 100644
--- a/scripts/bootgraph.pl
+++ b/scripts/bootgraph.pl
@@ -41,11 +41,13 @@
my %start;
my %end;
+my %type;
my $done = 0;
my $maxtime = 0;
my $firsttime = 100;
my $count = 0;
my %pids;
+my %pidctr;
while (<>) {
my $line = $_;
@@ -53,6 +55,7 @@
my $func = $2;
if ($done == 0) {
$start{$func} = $1;
+ $type{$func} = 0;
if ($1 < $firsttime) {
$firsttime = $1;
}
@@ -63,12 +66,40 @@
$count = $count + 1;
}
+ if ($line =~ /([0-9\.]+)\] async_waiting @ ([0-9]+)/) {
+ my $pid = $2;
+ my $func;
+ if (!defined($pidctr{$pid})) {
+ $func = "wait_" . $pid . "_1";
+ $pidctr{$pid} = 1;
+ } else {
+ $pidctr{$pid} = $pidctr{$pid} + 1;
+ $func = "wait_" . $pid . "_" . $pidctr{$pid};
+ }
+ if ($done == 0) {
+ $start{$func} = $1;
+ $type{$func} = 1;
+ if ($1 < $firsttime) {
+ $firsttime = $1;
+ }
+ }
+ $pids{$func} = $pid;
+ $count = $count + 1;
+ }
+
if ($line =~ /([0-9\.]+)\] initcall ([a-zA-Z0-9\_]+)\+.*returned/) {
if ($done == 0) {
$end{$2} = $1;
$maxtime = $1;
}
}
+
+ if ($line =~ /([0-9\.]+)\] async_continuing @ ([0-9]+)/) {
+ my $pid = $2;
+ my $func = "wait_" . $pid . "_" . $pidctr{$pid};
+ $end{$func} = $1;
+ $maxtime = $1;
+ }
if ($line =~ /Write protecting the/) {
$done = 1;
}
@@ -105,6 +136,8 @@
$styles[10] = "fill:rgb(255,128,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
$styles[11] = "fill:rgb(128,255,255);fill-opacity:0.5;stroke-width:1;stroke:rgb(0,0,0)";
+my $style_wait = "fill:rgb(128,128,128);fill-opacity:0.5;stroke-width:0;stroke:rgb(0,0,0)";
+
my $mult = 1950.0 / ($maxtime - $firsttime);
my $threshold2 = ($maxtime - $firsttime) / 120.0;
my $threshold = $threshold2/10;
@@ -139,11 +172,16 @@
$stylecounter = 0;
};
- print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
- if ($duration >= $threshold2) {
- print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
+ if ($type{$key} == 1) {
+ $y = $y + 15;
+ print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"115\" style=\"$style_wait\"/>\n";
} else {
- print "<text transform=\"translate($s3,$y2) rotate(90)\" font-size=\"3pt\">$key</text>\n";
+ print "<rect x=\"$s\" width=\"$w\" y=\"$y\" height=\"145\" style=\"$style\"/>\n";
+ if ($duration >= $threshold2) {
+ print "<text transform=\"translate($s2,$y2) rotate(90)\">$key</text>\n";
+ } else {
+ print "<text transform=\"translate($s3,$y2) rotate(90)\" font-size=\"3pt\">$key</text>\n";
+ }
}
}
}