---- linux-2.6.15.6/drivers/input/joystick/iforce/iforce-serio.c 2006-03-05 19:07:54.000000000 +0000
-+++ linux-2.6.15.6.iforce/drivers/input/joystick/iforce/iforce-serio.c 2006-04-29 23:17:59.000000000 +0000
-@@ -175,6 +175,12 @@
- .id = SERIO_ANY,
- .extra = SERIO_ANY,
- },
-+ {
-+ .type = SERIO_RS232,
-+ .proto = 0x1f, // Trust ForceFeedback Race Master
-+ .id = SERIO_ANY,
-+ .extra = SERIO_ANY,
-+ },
- { 0 }
- };
-
---- linux-2.6.27/arch/powerpc/include/asm/io.h~ 2006-06-18 01:49:35.000000000 +0000
-+++ linux-2.6.27/arch/powerpc/include/asm/io.h 2006-06-22 02:44:19.000000000 +0000
-@@ -445,6 +445,10 @@
- #define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
- #define page_to_bus(page) (page_to_phys(page) + PCI_DRAM_OFFSET)
-
-+#define isa_virt_to_bus virt_to_phys
-+#define isa_page_to_bus page_to_phys
-+#define isa_bus_to_virt phys_to_virt
-+
- /* Enforce in-order execution of data I/O.
- * No distinction between read/write on PPC; use eieio for all three.
- */
---- linux-2.6.27/arch/powerpc/include/asm/suspend.h 2007-07-09 01:32:17.000000000 +0200
-+++ linux-2.6.27/arch/powerpc/include/asm/suspend.h 2007-08-28 23:26:16.629658848 +0200
-@@ -6,4 +6,7 @@
- void save_processor_state(void);
- void restore_processor_state(void);
-
-+#define suspend2_faulted (0)
-+#define clear_suspend2_fault() do { } while(0)
-+
- #endif /* __ASM_POWERPC_SUSPEND_H */
---- linux-2.6.26/arch/powerpc/kernel/swsusp.c 2008-09-29 00:01:56.000000000 +0200
-+++ linux-2.6.26/arch/powerpc/kernel/swsusp.c 2008-09-29 00:01:42.000000000 +0200
-@@ -9,6 +9,7 @@
- * 2 of the License, or (at your option) any later version.
- */
-
-+#include <linux/module.h>
- #include <linux/sched.h>
- #include <asm/suspend.h>
- #include <asm/system.h>
-@@ -30,6 +31,7 @@
- #endif
-
- }
-+EXPORT_SYMBOL(save_processor_state);
-
- void restore_processor_state(void)
- {
-
---- linux-2.6.32/drivers/infiniband/Kconfig~ 2009-12-05 00:26:03.663774916 +0100
-+++ linux-2.6.32/drivers/infiniband/Kconfig 2009-12-05 00:26:05.914179759 +0100
-@@ -37,7 +37,6 @@
- config INFINIBAND_ADDR_TRANS
- bool
- depends on INET
-- depends on !(INFINIBAND = y && IPV6 = m)
- default y
-
- source "drivers/infiniband/hw/mthca/Kconfig"
--- linux-2.6.33/scripts/mod/modpost.c~ 2010-02-24 19:52:17.000000000 +0100
+++ linux-2.6.33/scripts/mod/modpost.c 2010-03-07 14:26:47.242168558 +0100
@@ -15,7 +15,8 @@
/* Some toolchains use a `_' prefix for all user symbols. */
-commit 87b09f1f25cd1e01d7c50bf423c7fe33027d7511
-Author: stephen hemminger <shemminger@vyatta.com>
-Date: Fri Feb 12 06:58:00 2010 +0000
+--- linux-3.0/scripts/kconfig/lxdialog/check-lxdialog.sh~ 2011-07-22 04:17:23.000000000 +0200
++++ linux-3.0/scripts/kconfig/lxdialog/check-lxdialog.sh 2011-08-25 21:26:04.799150642 +0200
+@@ -9,6 +9,12 @@
+ $cc -print-file-name=lib${lib}.${ext} | grep -q /
+ if [ $? -eq 0 ]; then
+ echo "-l${lib}"
++ for libt in tinfow tinfo ; do
++ $cc -print-file-name=lib${libt}.${ext} | grep -q /
++ if [ $? -eq 0 ]; then
++ echo "-l${libt}"
++ fi
++ done
+ exit
+ fi
+ done
+From 30927520dbae297182990bb21d08762bcc35ce1d Mon Sep 17 00:00:00 2001
+From: Eric Dumazet <edumazet@google.com>
+Date: Wed, 9 Sep 2015 21:55:07 -0700
+Subject: [PATCH] tcp_cubic: better follow cubic curve after idle period
- sky2: dont enable PME legacy mode
-
- This bit is not changed by vendor driver, and should be left alone.
- The documentation implies this a debug bit.
- 0 = WAKE# only asserted when VMAIN not available
- 1 = WAKE# is depend on wake events and independent of VMAIN.
-
- Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
- Signed-off-by: David S. Miller <davem@davemloft.net>
+Jana Iyengar found an interesting issue on CUBIC :
-diff --git b/drivers/net/sky2.c a/drivers/net/sky2.c
-index 2494842..edf37aa 100644
---- b/drivers/net/sky2.c
-+++ a/drivers/net/sky2.c
-@@ -733,6 +733,7 @@ static void sky2_wol_init(struct sky2_port *sky2)
- unsigned port = sky2->port;
- enum flow_control save_mode;
- u16 ctrl;
-+ u32 reg1;
-
- /* Bring hardware out of reset */
- sky2_write16(hw, B0_CTST, CS_RST_CLR);
-@@ -786,6 +787,11 @@ static void sky2_wol_init(struct sky2_port *sky2)
- /* Disable PiG firmware */
- sky2_write16(hw, B0_CTST, Y2_HW_WOL_OFF);
-
-+ /* Turn on legacy PCI-Express PME mode */
-+ reg1 = sky2_pci_read32(hw, PCI_DEV_REG1);
-+ reg1 |= PCI_Y2_PME_LEGACY;
-+ sky2_pci_write32(hw, PCI_DEV_REG1, reg1);
-+
- /* block receiver */
- sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_SET);
- }
+The epoch is only updated/reset initially and when experiencing losses.
+The delta "t" of now - epoch_start can be arbitrary large after app idle
+as well as the bic_target. Consequentially the slope (inverse of
+ca->cnt) would be really large, and eventually ca->cnt would be
+lower-bounded in the end to 2 to have delayed-ACK slow-start behavior.
-Commit 368e136 ("xfs: remove duplicate code from dquot reclaim") fails
-to unlock the dquot freelist when the number of loop restarts is
-exceeded in xfs_qm_dqreclaim_one(). This causes hangs in memory
-reclaim. Remove the bogus loop exit check that causes the problem.
+This particularly shows up when slow_start_after_idle is disabled
+as a dangerous cwnd inflation (1.5 x RTT) after few seconds of idle
+time.
-Reported-by: Malcolm Scott <lkml@malc.org.uk>
-Signed-off-by: Dave Chinner <dchinner@redhat.com>
----
- fs/xfs/quota/xfs_qm.c | 2 --
- 1 files changed, 0 insertions(+), 2 deletions(-)
-
-diff --git a/fs/xfs/quota/xfs_qm.c b/fs/xfs/quota/xfs_qm.c
-index f8e854b..9431c56 100644
---- a/fs/xfs/quota/xfs_qm.c
-+++ b/fs/xfs/quota/xfs_qm.c
-@@ -1992,8 +1992,6 @@ dqfunlock:
- xfs_dqunlock(dqp);
- if (dqpout)
- break;
-- if (restarts >= XFS_QM_RECLAIM_MAX_RESTARTS)
-- return NULL;
- }
- mutex_unlock(&xfs_Gqm->qm_dqfrlist_lock);
- return dqpout;
-Subject: [PATCH -mm] swiotlb: fix wrong panic
-From: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
-
-swiotlb's map_page wrongly calls panic() when it can't find a buffer
-fit for device's dma mask. It should return an error instead.
-
-Devices with an odd dma mask (i.e. under 4G) like b44 network card hit
-this bug (the system crashes):
+Jana initial fix was to reset epoch_start if app limited,
+but Neal pointed out it would ask the CUBIC algorithm to recalculate the
+curve so that we again start growing steeply upward from where cwnd is
+now (as CUBIC does just after a loss). Ideally we'd want the cwnd growth
+curve to be the same shape, just shifted later in time by the amount of
+the idle period.
-http://marc.info/?l=linux-kernel&m=129648943830106&w=2
-
-If swiotlb returns an error, b44 driver can use the own bouncing
-mechanism.
-
-Reported-by: Chuck Ebbert <cebbert@redhat.com>
-Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
-Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
-Cc: stable@kernel.org
+Reported-by: Jana Iyengar <jri@google.com>
+Signed-off-by: Eric Dumazet <edumazet@google.com>
+Signed-off-by: Yuchung Cheng <ycheng@google.com>
+Signed-off-by: Neal Cardwell <ncardwell@google.com>
+Cc: Stephen Hemminger <stephen@networkplumber.org>
+Cc: Sangtae Ha <sangtae.ha@gmail.com>
+Cc: Lawrence Brakmo <lawrence@brakmo.org>
+Signed-off-by: David S. Miller <davem@davemloft.net>
---
- lib/swiotlb.c | 6 ++++--
- 1 files changed, 4 insertions(+), 2 deletions(-)
+ net/ipv4/tcp_cubic.c | 16 ++++++++++++++++
+ 1 file changed, 16 insertions(+)
-diff --git a/lib/swiotlb.c b/lib/swiotlb.c
-index c47bbe1..93ca08b 100644
---- a/lib/swiotlb.c
-+++ b/lib/swiotlb.c
-@@ -686,8 +686,10 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
- /*
- * Ensure that the address returned is DMA'ble
- */
-- if (!dma_capable(dev, dev_addr, size))
-- panic("map_single: bounce buffer is not DMA'ble");
-+ if (!dma_capable(dev, dev_addr, size)) {
-+ swiotlb_tbl_unmap_single(dev, map, size, dir);
-+ dev_addr = swiotlb_virt_to_bus(dev, io_tlb_overflow_buffer);
-+ }
-
- return dev_addr;
+diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
+index 28011fb1..c6ded6b 100644
+--- a/net/ipv4/tcp_cubic.c
++++ b/net/ipv4/tcp_cubic.c
+@@ -151,6 +151,21 @@ static void bictcp_init(struct sock *sk)
+ tcp_sk(sk)->snd_ssthresh = initial_ssthresh;
}
---
-1.7.2.3
-
-
+
++static void bictcp_cwnd_event(struct sock *sk, enum tcp_ca_event event)
++{
++ if (event == CA_EVENT_TX_START) {
++ s32 delta = tcp_time_stamp - tcp_sk(sk)->lsndtime;
++ struct bictcp *ca = inet_csk_ca(sk);
++
++ /* We were application limited (idle) for a while.
++ * Shift epoch_start to keep cwnd growth to cubic curve.
++ */
++ if (ca->epoch_start && delta > 0)
++ ca->epoch_start += delta;
++ return;
++ }
++}
++
+ /* calculate the cubic root of x using a table lookup followed by one
+ * Newton-Raphson iteration.
+ * Avg err ~= 0.195%
+@@ -450,6 +465,7 @@ static struct tcp_congestion_ops cubictcp __read_mostly = {
+ .cong_avoid = bictcp_cong_avoid,
+ .set_state = bictcp_state,
+ .undo_cwnd = bictcp_undo_cwnd,
++ .cwnd_event = bictcp_cwnd_event,
+ .pkts_acked = bictcp_acked,
+ .owner = THIS_MODULE,
+ .name = "cubic",