---- 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 @@
- #include <stdio.h>
- #include <ctype.h>
- #include "modpost.h"
--#include "../../include/generated/autoconf.h"
-+// PLD architectures don't use CONFIG_SYMBOL_PREFIX
-+//#include "../../include/generated/autoconf.h"
- #include "../../include/linux/license.h"
-
- /* Some toolchains use a `_' prefix for all user symbols. */
+From: Shaohua Li <shli@fb.com>
---- 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
+Basically this is a copy of commit 001e4a8775f6(ext4: implement cgroup
+writeback support). Tested with a fio test, verified writeback is
+throttled against cgroup io.max write bandwidth, also verified moving
+the fio test to another cgroup and the writeback is throttled against
+new cgroup setting.
-diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
-index 7a0c800..ec5ebbb 100644
---- a/drivers/net/ethernet/realtek/r8169.c
-+++ b/drivers/net/ethernet/realtek/r8169.c
-@@ -6927,6 +6927,14 @@ rtl_init_one(struct pci_dev *pdev, const
- for (i = 0; i < ETH_ALEN; i++)
- dev->dev_addr[i] = RTL_R8(MAC0 + i);
-
-+ if (!is_valid_ether_addr(dev->dev_addr)) {
-+ /* Report it and use a random ethernet address instead */
-+ netdev_err(dev, "Invalid MAC address: %pM\n", dev->dev_addr);
-+ random_ether_addr(dev->dev_addr);
-+ netdev_info(dev, "Using random MAC address: %pM\n",
-+ dev->dev_addr);
-+ }
-+
- SET_ETHTOOL_OPS(dev, &rtl8169_ethtool_ops);
- dev->watchdog_timeo = RTL8169_TX_TIMEOUT;
-
-commit 03bbcb2e7e292838bb0244f5a7816d194c911d62
-Author: Neil Horman <nhorman@tuxdriver.com>
-Date: Tue Apr 16 16:38:32 2013 -0400
+Cc: Tejun Heo <tj@kernel.org>
+Signed-off-by: Shaohua Li <shli@fb.com>
+---
+ fs/xfs/xfs_aops.c | 2 ++
+ fs/xfs/xfs_super.c | 1 +
+ 2 files changed, 3 insertions(+)
- iommu/vt-d: add quirk for broken interrupt remapping on 55XX chipsets
-
- A few years back intel published a spec update:
- http://www.intel.com/content/dam/doc/specification-update/5520-and-5500-chipset-ioh-specification-update.pdf
-
- For the 5520 and 5500 chipsets which contained an errata (specificially errata
- 53), which noted that these chipsets can't properly do interrupt remapping, and
- as a result the recommend that interrupt remapping be disabled in bios. While
- many vendors have a bios update to do exactly that, not all do, and of course
- not all users update their bios to a level that corrects the problem. As a
- result, occasionally interrupts can arrive at a cpu even after affinity for that
- interrupt has be moved, leading to lost or spurrious interrupts (usually
- characterized by the message:
- kernel: do_IRQ: 7.71 No irq handler for vector (irq -1)
-
- There have been several incidents recently of people seeing this error, and
- investigation has shown that they have system for which their BIOS level is such
- that this feature was not properly turned off. As such, it would be good to
- give them a reminder that their systems are vulnurable to this problem. For
- details of those that reported the problem, please see:
- https://bugzilla.redhat.com/show_bug.cgi?id=887006
-
- [ Joerg: Removed CONFIG_IRQ_REMAP ifdef from early-quirks.c ]
-
- Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
- CC: Prarit Bhargava <prarit@redhat.com>
- CC: Don Zickus <dzickus@redhat.com>
- CC: Don Dutile <ddutile@redhat.com>
- CC: Bjorn Helgaas <bhelgaas@google.com>
- CC: Asit Mallick <asit.k.mallick@intel.com>
- CC: David Woodhouse <dwmw2@infradead.org>
- CC: linux-pci@vger.kernel.org
- CC: Joerg Roedel <joro@8bytes.org>
- CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
- CC: Arkadiusz MiĆkiewicz <arekm@maven.pl>
- Signed-off-by: Joerg Roedel <joro@8bytes.org>
-
-diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h
-index 95fd352..aca6aa2 100644
---- a/arch/x86/include/asm/irq_remapping.h
-+++ b/arch/x86/include/asm/irq_remapping.h
-@@ -28,6 +28,7 @@
-
- extern void setup_irq_remapping_ops(void);
- extern int irq_remapping_supported(void);
-+extern void set_irq_remapping_broken(void);
- extern int irq_remapping_prepare(void);
- extern int irq_remapping_enable(void);
- extern void irq_remapping_disable(void);
-@@ -54,6 +55,7 @@ void irq_remap_modify_chip_defaults(struct irq_chip *chip);
-
- static inline void setup_irq_remapping_ops(void) { }
- static inline int irq_remapping_supported(void) { return 0; }
-+static inline void set_irq_remapping_broken(void) { }
- static inline int irq_remapping_prepare(void) { return -ENODEV; }
- static inline int irq_remapping_enable(void) { return -ENODEV; }
- static inline void irq_remapping_disable(void) { }
-diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
-index 3755ef4..94ab6b9 100644
---- a/arch/x86/kernel/early-quirks.c
-+++ b/arch/x86/kernel/early-quirks.c
-@@ -18,6 +18,7 @@
- #include <asm/apic.h>
- #include <asm/iommu.h>
- #include <asm/gart.h>
-+#include <asm/irq_remapping.h>
-
- static void __init fix_hypertransport_config(int num, int slot, int func)
- {
-@@ -192,6 +193,21 @@ static void __init ati_bugs_contd(int num, int slot, int func)
- }
- #endif
-
-+static void __init intel_remapping_check(int num, int slot, int func)
-+{
-+ u8 revision;
-+
-+ revision = read_pci_config_byte(num, slot, func, PCI_REVISION_ID);
-+
-+ /*
-+ * Revision 0x13 of this chipset supports irq remapping
-+ * but has an erratum that breaks its behavior, flag it as such
-+ */
-+ if (revision == 0x13)
-+ set_irq_remapping_broken();
-+
-+}
-+
- #define QFLAG_APPLY_ONCE 0x1
- #define QFLAG_APPLIED 0x2
- #define QFLAG_DONE (QFLAG_APPLY_ONCE|QFLAG_APPLIED)
-@@ -221,6 +237,10 @@ static struct chipset early_qrk[] __initdata = {
- PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs },
- { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
- PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs_contd },
-+ { PCI_VENDOR_ID_INTEL, 0x3403, PCI_CLASS_BRIDGE_HOST,
-+ PCI_BASE_CLASS_BRIDGE, 0, intel_remapping_check },
-+ { PCI_VENDOR_ID_INTEL, 0x3406, PCI_CLASS_BRIDGE_HOST,
-+ PCI_BASE_CLASS_BRIDGE, 0, intel_remapping_check },
- {}
- };
-
-diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
-index f3b8f23..5b19b2d 100644
---- a/drivers/iommu/intel_irq_remapping.c
-+++ b/drivers/iommu/intel_irq_remapping.c
-@@ -524,6 +524,16 @@ static int __init intel_irq_remapping_supported(void)
-
- if (disable_irq_remap)
- return 0;
-+ if (irq_remap_broken) {
-+ WARN_TAINT(1, TAINT_FIRMWARE_WORKAROUND,
-+ "This system BIOS has enabled interrupt remapping\n"
-+ "on a chipset that contains an erratum making that\n"
-+ "feature unstable. To maintain system stability\n"
-+ "interrupt remapping is being disabled. Please\n"
-+ "contact your BIOS vendor for an update\n");
-+ disable_irq_remap = 1;
-+ return 0;
-+ }
-
- if (!dmar_ir_support())
- return 0;
-diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
-index d56f8c1..3c11043 100644
---- a/drivers/iommu/irq_remapping.c
-+++ b/drivers/iommu/irq_remapping.c
-@@ -19,6 +19,7 @@
- int irq_remapping_enabled;
-
- int disable_irq_remap;
-+int irq_remap_broken;
- int disable_sourceid_checking;
- int no_x2apic_optout;
-
-@@ -211,6 +212,11 @@ void __init setup_irq_remapping_ops(void)
- #endif
- }
-
-+void set_irq_remapping_broken(void)
-+{
-+ irq_remap_broken = 1;
-+}
-+
- int irq_remapping_supported(void)
- {
- if (disable_irq_remap)
-diff --git a/drivers/iommu/irq_remapping.h b/drivers/iommu/irq_remapping.h
-index ecb6376..90c4dae 100644
---- a/drivers/iommu/irq_remapping.h
-+++ b/drivers/iommu/irq_remapping.h
-@@ -32,6 +32,7 @@ struct pci_dev;
- struct msi_msg;
-
- extern int disable_irq_remap;
-+extern int irq_remap_broken;
- extern int disable_sourceid_checking;
- extern int no_x2apic_optout;
- extern int irq_remapping_enabled;
-@@ -89,6 +90,7 @@ extern struct irq_remap_ops amd_iommu_irq_ops;
-
- #define irq_remapping_enabled 0
- #define disable_irq_remap 1
-+#define irq_remap_broken 0
-
- #endif /* CONFIG_IRQ_REMAP */
-
+--- linux-4.19/fs/xfs/xfs_aops.c.org 2018-11-21 10:31:12.348955352 +0100
++++ linux-4.19/fs/xfs/xfs_aops.c 2018-11-21 10:34:35.241764742 +0100
+@@ -613,8 +613,10 @@ xfs_add_to_ioend(
+ list_add(&wpc->ioend->io_list, iolist);
+ wpc->ioend = xfs_alloc_ioend(inode, wpc->io_type, offset,
+ bdev, sector);
++ wbc_init_bio(wbc, wpc->ioend->io_bio);
+ }
+
++ wbc_account_io(wbc, page, len);
+ if (!__bio_try_merge_page(wpc->ioend->io_bio, page, len, poff)) {
+ if (iop)
+ atomic_inc(&iop->write_count);
+diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
+index 584cf2d..aea3bc2 100644
+--- a/fs/xfs/xfs_super.c
++++ b/fs/xfs/xfs_super.c
+@@ -1634,6 +1634,7 @@ xfs_fs_fill_super(
+ sb->s_max_links = XFS_MAXLINK;
+ sb->s_time_gran = 1;
+ set_posix_acl_flag(sb);
++ sb->s_iflags |= SB_I_CGROUPWB;
+
+ /* version 5 superblocks support inode version counters. */
+ if (XFS_SB_VERSION_NUM(&mp->m_sb) == XFS_SB_VERSION_5)