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Linux 3.3 

Rebase to the 3.3 release
This commit is contained in:
Josh Boyer 2012-03-19 19:13:43 -04:00
parent d8b686023e
commit bfafc479d5
34 changed files with 1226 additions and 7307 deletions
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78
KVM-x86-extend-struct-x86_emulate_ops-with-get_cpuid.patch
View File

@ -1,78 +0,0 @@
From 0769c5de24621141c953fbe1f943582d37cb4244 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stephan=20B=C3=A4rwolf?= <stephan.baerwolf@tu-ilmenau.de>
Date: Thu, 12 Jan 2012 16:43:03 +0100
Subject: [PATCH 1/2] KVM: x86: extend "struct x86_emulate_ops" with
"get_cpuid"
In order to be able to proceed checks on CPU-specific properties
within the emulator, function "get_cpuid" is introduced.
With "get_cpuid" it is possible to virtually call the guests
"cpuid"-opcode without changing the VM's context.
[mtosatti: cleanup/beautify code]
Signed-off-by: Stephan Baerwolf <stephan.baerwolf@tu-ilmenau.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
arch/x86/include/asm/kvm_emulate.h | 3 +++
arch/x86/kvm/x86.c | 23 +++++++++++++++++++++++
2 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index ab4092e..c8b2868 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -190,6 +190,9 @@ struct x86_emulate_ops {
int (*intercept)(struct x86_emulate_ctxt *ctxt,
struct x86_instruction_info *info,
enum x86_intercept_stage stage);
+
+ bool (*get_cpuid)(struct x86_emulate_ctxt *ctxt,
+ u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
};
typedef u32 __attribute__((vector_size(16))) sse128_t;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index f0fa3fb..c95ca2d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4205,6 +4205,28 @@ static int emulator_intercept(struct x86_emulate_ctxt *ctxt,
return kvm_x86_ops->check_intercept(emul_to_vcpu(ctxt), info, stage);
}
+static bool emulator_get_cpuid(struct x86_emulate_ctxt *ctxt,
+ u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
+{
+ struct kvm_cpuid_entry2 *cpuid = NULL;
+
+ if (eax && ecx)
+ cpuid = kvm_find_cpuid_entry(emul_to_vcpu(ctxt),
+ *eax, *ecx);
+
+ if (cpuid) {
+ *eax = cpuid->eax;
+ *ecx = cpuid->ecx;
+ if (ebx)
+ *ebx = cpuid->ebx;
+ if (edx)
+ *edx = cpuid->edx;
+ return true;
+ }
+
+ return false;
+}
+
static struct x86_emulate_ops emulate_ops = {
.read_std = kvm_read_guest_virt_system,
.write_std = kvm_write_guest_virt_system,
@@ -4236,6 +4258,7 @@ static struct x86_emulate_ops emulate_ops = {
.get_fpu = emulator_get_fpu,
.put_fpu = emulator_put_fpu,
.intercept = emulator_intercept,
+ .get_cpuid = emulator_get_cpuid,
};
static void cache_all_regs(struct kvm_vcpu *vcpu)
--
1.7.7.5

144
KVM-x86-fix-missing-checks-in-syscall-emulation.patch
View File

@ -1,144 +0,0 @@
From e28ba7bb020f07193bc000453c8775e9d2c0dda7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stephan=20B=C3=A4rwolf?= <stephan.baerwolf@tu-ilmenau.de>
Date: Thu, 12 Jan 2012 16:43:04 +0100
Subject: [PATCH 2/2] KVM: x86: fix missing checks in syscall emulation
On hosts without this patch, 32bit guests will crash (and 64bit guests
may behave in a wrong way) for example by simply executing following
nasm-demo-application:
[bits 32]
global _start
SECTION .text
_start: syscall
(I tested it with winxp and linux - both always crashed)
Disassembly of section .text:
00000000 <_start>:
0: 0f 05 syscall
The reason seems a missing "invalid opcode"-trap (int6) for the
syscall opcode "0f05", which is not available on Intel CPUs
within non-longmodes, as also on some AMD CPUs within legacy-mode.
(depending on CPU vendor, MSR_EFER and cpuid)
Because previous mentioned OSs may not engage corresponding
syscall target-registers (STAR, LSTAR, CSTAR), they remain
NULL and (non trapping) syscalls are leading to multiple
faults and finally crashs.
Depending on the architecture (AMD or Intel) pretended by
guests, various checks according to vendor's documentation
are implemented to overcome the current issue and behave
like the CPUs physical counterparts.
[mtosatti: cleanup/beautify code]
Signed-off-by: Stephan Baerwolf <stephan.baerwolf@tu-ilmenau.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
---
arch/x86/include/asm/kvm_emulate.h | 13 +++++++++
arch/x86/kvm/emulate.c | 51 ++++++++++++++++++++++++++++++++++++
2 files changed, 64 insertions(+), 0 deletions(-)
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index c8b2868..7b9cfc4 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -301,6 +301,19 @@ struct x86_emulate_ctxt {
#define X86EMUL_MODE_PROT (X86EMUL_MODE_PROT16|X86EMUL_MODE_PROT32| \
X86EMUL_MODE_PROT64)
+/* CPUID vendors */
+#define X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx 0x68747541
+#define X86EMUL_CPUID_VENDOR_AuthenticAMD_ecx 0x444d4163
+#define X86EMUL_CPUID_VENDOR_AuthenticAMD_edx 0x69746e65
+
+#define X86EMUL_CPUID_VENDOR_AMDisbetterI_ebx 0x69444d41
+#define X86EMUL_CPUID_VENDOR_AMDisbetterI_ecx 0x21726574
+#define X86EMUL_CPUID_VENDOR_AMDisbetterI_edx 0x74656273
+
+#define X86EMUL_CPUID_VENDOR_GenuineIntel_ebx 0x756e6547
+#define X86EMUL_CPUID_VENDOR_GenuineIntel_ecx 0x6c65746e
+#define X86EMUL_CPUID_VENDOR_GenuineIntel_edx 0x49656e69
+
enum x86_intercept_stage {
X86_ICTP_NONE = 0, /* Allow zero-init to not match anything */
X86_ICPT_PRE_EXCEPT,
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 05a562b..0982507 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1891,6 +1891,51 @@ setup_syscalls_segments(struct x86_emulate_ctxt *ctxt,
ss->p = 1;
}
+static bool em_syscall_is_enabled(struct x86_emulate_ctxt *ctxt)
+{
+ struct x86_emulate_ops *ops = ctxt->ops;
+ u32 eax, ebx, ecx, edx;
+
+ /*
+ * syscall should always be enabled in longmode - so only become
+ * vendor specific (cpuid) if other modes are active...
+ */
+ if (ctxt->mode == X86EMUL_MODE_PROT64)
+ return true;
+
+ eax = 0x00000000;
+ ecx = 0x00000000;
+ if (ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx)) {
+ /*
+ * Intel ("GenuineIntel")
+ * remark: Intel CPUs only support "syscall" in 64bit
+ * longmode. Also an 64bit guest with a
+ * 32bit compat-app running will #UD !! While this
+ * behaviour can be fixed (by emulating) into AMD
+ * response - CPUs of AMD can't behave like Intel.
+ */
+ if (ebx == X86EMUL_CPUID_VENDOR_GenuineIntel_ebx &&
+ ecx == X86EMUL_CPUID_VENDOR_GenuineIntel_ecx &&
+ edx == X86EMUL_CPUID_VENDOR_GenuineIntel_edx)
+ return false;
+
+ /* AMD ("AuthenticAMD") */
+ if (ebx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx &&
+ ecx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ecx &&
+ edx == X86EMUL_CPUID_VENDOR_AuthenticAMD_edx)
+ return true;
+
+ /* AMD ("AMDisbetter!") */
+ if (ebx == X86EMUL_CPUID_VENDOR_AMDisbetterI_ebx &&
+ ecx == X86EMUL_CPUID_VENDOR_AMDisbetterI_ecx &&
+ edx == X86EMUL_CPUID_VENDOR_AMDisbetterI_edx)
+ return true;
+ }
+
+ /* default: (not Intel, not AMD), apply Intel's stricter rules... */
+ return false;
+}
+
static int em_syscall(struct x86_emulate_ctxt *ctxt)
{
struct x86_emulate_ops *ops = ctxt->ops;
@@ -1904,9 +1949,15 @@ static int em_syscall(struct x86_emulate_ctxt *ctxt)
ctxt->mode == X86EMUL_MODE_VM86)
return emulate_ud(ctxt);
+ if (!(em_syscall_is_enabled(ctxt)))
+ return emulate_ud(ctxt);
+
ops->get_msr(ctxt, MSR_EFER, &efer);
setup_syscalls_segments(ctxt, &cs, &ss);
+ if (!(efer & EFER_SCE))
+ return emulate_ud(ctxt);
+
ops->get_msr(ctxt, MSR_STAR, &msr_data);
msr_data >>= 32;
cs_sel = (u16)(msr_data & 0xfffc);
--
1.7.7.5

1861
alps.patch
View File

File diff suppressed because it is too large Load Diff

12
config-arm-generic
View File

@ -194,3 +194,15 @@ CONFIG_ARM_ERRATA_751472=y
# CONFIG_MX3_IPU is not set
# CONFIG_MX3_IPU_IRQS is not set
# CONFIG_OF_SELFTEST is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_INPUT_GP2A is not set
# CONFIG_INPUT_GPIO_TILT_POLLED is not set
# CONFIG_MACH_IMX51_DT is not set
# CONFIG_MACH_IMX53_DT is not set
# CONFIG_MACH_MX53_EVK is not set
# CONFIG_MACH_MX53_SMD is not set
# CONFIG_MACH_MX53_LOCO is not set
# CONFIG_MACH_MX53_ARD is not set
# CONFIG_ARM_EXYNOS4210_CPUFREQ is not set

1
config-arm-highbank
View File

@ -14,3 +14,4 @@ CONFIG_CPU_FREQ_GOV_CONSERVATIVE=m
CONFIG_CPU_FREQ_TABLE=y
CONFIG_CPU_FREQ_STAT=y
CONFIG_CPU_FREQ_STAT_DETAILS=y
CONFIG_NET_CALXEDA_XGMAC=y

11
config-arm-omap-generic
View File

@ -1083,3 +1083,14 @@ CONFIG_LEDS_RENESAS_TPU=y
# CONFIG_OMAP_IOMMU is not set
CONFIG_USB_RENESAS_USBHS_HCD=m
# CONFIG_SOC_OMAPTI81XX is not set
# CONFIG_SOC_OMAPAM33XX is not set
# CONFIG_MACH_TI8148EVM is not set
# CONFIG_OMAP4_ERRATA_I688 is not set
# CONFIG_ARM_LPAE is not set
# CONFIG_MICREL_KS8995MA is not set
# CONFIG_CHARGER_MANAGER is not set
# CONFIG_MFD_DA9052_SPI is not set
# CONFIG_MFD_DA9052_I2C is not set
# CONFIG_MFD_S5M_CORE is not set
# CONFIG_VIDEO_AS3645A is not set

9
config-arm-tegra
View File

@ -90,3 +90,12 @@ CONFIG_ARM_CPU_TOPOLOGY=y
CONFIG_SCHED_MC=y
CONFIG_SCHED_SMT=y
CONFIG_LEDS_RENESAS_TPU=y
# CONFIG_ARCH_TEGRA_2x_SOC is not set
# CONFIG_ARCH_TEGRA_3x_SOC is not set
# CONFIG_ETHERNET is not set
# CONFIG_NET_VENDOR_BROADCOM is not set
# CONFIG_DVB_TDA1004X is not set
# CONFIG_DVB_PLL is not set
# CONFIG_SND_SOC_TEGRA_ALC5632 is not set

61
config-generic
View File

@ -152,6 +152,7 @@ CONFIG_INFINIBAND_IPOIB_DEBUG=y
CONFIG_INFINIBAND_IPOIB_DEBUG_DATA=y
CONFIG_INFINIBAND_IPOIB_CM=y
CONFIG_INFINIBAND_SRP=m
CONFIG_INFINIBAND_SRPT=m
CONFIG_INFINIBAND_USER_MAD=m
CONFIG_INFINIBAND_USER_ACCESS=m
CONFIG_INFINIBAND_IPATH=m
@ -362,6 +363,7 @@ CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
CONFIG_BLK_DEV_CRYPTOLOOP=m
CONFIG_BLK_DEV_NBD=m
# CONFIG_BLK_DEV_NVME is not set
CONFIG_BLK_DEV_OSD=m
CONFIG_BLK_DEV_RAM=m
CONFIG_BLK_DEV_RAM_COUNT=16
@ -783,12 +785,14 @@ CONFIG_TCP_MD5SIG=y
#
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_UNIX_DIAG=m
CONFIG_NET_KEY=m
CONFIG_NET_KEY_MIGRATE=y
CONFIG_INET=y
CONFIG_INET_LRO=y
CONFIG_INET_TUNNEL=m
CONFIG_INET_DIAG=m
CONFIG_INET_UDP_DIAG=m
CONFIG_IP_MULTICAST=y
CONFIG_IP_ADVANCED_ROUTER=y
CONFIG_IP_FIB_TRIE_STATS=y
@ -837,6 +841,13 @@ CONFIG_IP_VS_DH=m
CONFIG_IP_VS_SH=m
CONFIG_IP_VS_SED=m
CONFIG_IP_VS_NQ=m
#
# IPVS SH scheduler
#
#
CONFIG_IP_VS_SH_TAB_BITS=8
CONFIG_IP_VS_FTP=m
CONFIG_IP_VS_PE_SIP=m
@ -879,6 +890,7 @@ CONFIG_NETFILTER=y
CONFIG_NETFILTER_ADVANCED=y
CONFIG_NF_CONNTRACK=m
CONFIG_NETFILTER_NETLINK=m
CONFIG_NETFILTER_NETLINK_ACCT=m
CONFIG_NETFILTER_NETLINK_QUEUE=m
CONFIG_NETFILTER_NETLINK_LOG=m
CONFIG_NETFILTER_TPROXY=m
@ -919,6 +931,7 @@ CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_DCCP=m
CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
CONFIG_NETFILTER_XT_MATCH_DSCP=m
CONFIG_NETFILTER_XT_MATCH_ECN=m
CONFIG_NETFILTER_XT_MATCH_ESP=m
CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
CONFIG_NETFILTER_XT_MATCH_HELPER=m
@ -930,6 +943,7 @@ CONFIG_NETFILTER_XT_MATCH_LIMIT=m
CONFIG_NETFILTER_XT_MATCH_MAC=m
CONFIG_NETFILTER_XT_MATCH_MARK=m
CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
CONFIG_NETFILTER_XT_MATCH_NFACCT=m
CONFIG_NETFILTER_XT_MATCH_OSF=m
CONFIG_NETFILTER_XT_MATCH_OWNER=m
CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
@ -959,6 +973,7 @@ CONFIG_NF_CONNTRACK_MARK=y
CONFIG_NF_CONNTRACK_SECMARK=y
CONFIG_NF_CONNTRACK_EVENTS=y
CONFIG_NF_CONNTRACK_ZONES=y
CONFIG_NF_CONNTRACK_PROCFS=y
# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
CONFIG_NF_CONNTRACK_AMANDA=m
CONFIG_NF_CONNTRACK_FTP=m
@ -982,6 +997,7 @@ CONFIG_NF_CT_PROTO_UDPLITE=m
CONFIG_IP_NF_MATCH_AH=m
CONFIG_IP_NF_MATCH_ECN=m
CONFIG_IP_NF_MATCH_RPFILTER=m
CONFIG_IP_NF_MATCH_TTL=m
CONFIG_IP_NF_TARGET_CLUSTERIP=m
CONFIG_IP_NF_TARGET_MASQUERADE=m
@ -1014,6 +1030,7 @@ CONFIG_IP6_NF_MATCH_FRAG=m
CONFIG_IP6_NF_MATCH_HL=m
CONFIG_IP6_NF_MATCH_IPV6HEADER=m
CONFIG_IP6_NF_MATCH_MH=m
CONFIG_IP6_NF_MATCH_RPFILTER=m
CONFIG_IP6_NF_MATCH_OPTS=m
CONFIG_IP6_NF_MATCH_RT=m
CONFIG_IP6_NF_QUEUE=m
@ -1175,6 +1192,8 @@ CONFIG_NET_ACT_SIMP=m
CONFIG_NET_ACT_SKBEDIT=m
CONFIG_DCB=y
CONFIG_OPENVSWITCH=m
CONFIG_NETPRIO_CGROUP=m
#
# Network testing
@ -1191,6 +1210,9 @@ CONFIG_NETDEVICES=y
#
# CONFIG_ARCNET is not set
CONFIG_IFB=m
CONFIG_NET_TEAM=m
CONFIG_NET_TEAM_MODE_ROUNDROBIN=m
CONFIG_NET_TEAM_MODE_ACTIVEBACKUP=m
CONFIG_DUMMY=m
CONFIG_BONDING=m
CONFIG_MACVLAN=m
@ -1280,6 +1302,7 @@ CONFIG_ATL1E=m
CONFIG_NET_VENDOR_BROCADE=y
CONFIG_BNA=m
CONFIG_NET_CALXEDA_XGMAC=m
CONFIG_NET_VENDOR_CHELSIO=y
CONFIG_CHELSIO_T1=m
@ -1417,6 +1440,8 @@ CONFIG_SMSC9420=m
CONFIG_NET_VENDOR_STMICRO=y
CONFIG_STMMAC_ETH=m
# CONFIG_STMMAC_PLATFORM is not set
# CONFIG_STMMAC_PCI is not set
# CONFIG_STMMAC_DA is not set
# CONFIG_STMMAC_DUAL_MAC is not set
# CONFIG_STMMAC_TIMER is not set
@ -1566,6 +1591,7 @@ CONFIG_ATH9K_AHB=y
# CONFIG_ATH9K_DEBUG is not set
CONFIG_ATH9K_DEBUGFS=y
CONFIG_ATH9K_HTC=m
CONFIG_ATH9K_BTCOEX_SUPPORT=y
# CONFIG_ATH9K_HTC_DEBUGFS is not set
CONFIG_ATH9K_RATE_CONTROL=y
CONFIG_CARL9170=m
@ -1579,6 +1605,7 @@ CONFIG_B43=m
CONFIG_B43_PCMCIA=y
CONFIG_B43_SDIO=y
CONFIG_B43_BCMA=y
# CONFIG_B43_BCMA_EXTRA is not set
CONFIG_B43_BCMA_PIO=y
# CONFIG_B43_DEBUG is not set
CONFIG_B43_PHY_LP=y
@ -1594,6 +1621,7 @@ CONFIG_B43LEGACY_DMA_AND_PIO_MODE=y
# CONFIG_B43LEGACY_PIO_MODE is not set
CONFIG_BRCMSMAC=m
CONFIG_BRCMFMAC=m
CONFIG_BRCMFMAC_SDIO=y
# CONFIG_BRCMDBG is not set
CONFIG_HERMES=m
CONFIG_HERMES_CACHE_FW_ON_INIT=y
@ -1627,11 +1655,10 @@ CONFIG_IWLWIFI=m
CONFIG_IWLWIFI_DEBUG=y
CONFIG_IWLWIFI_DEBUGFS=y
CONFIG_IWLWIFI_DEVICE_SVTOOL=y
# CONFIG_IWL_P2P is not set
CONFIG_IWLAGN=m
CONFIG_IWLWIFI_LEGACY=m
CONFIG_IWLWIFI_LEGACY_DEBUG=y
CONFIG_IWLWIFI_LEGACY_DEBUGFS=y
# CONFIG_IWLWIFI_P2P is not set
CONFIG_IWLEGACY=m
CONFIG_IWLEGACY_DEBUG=y
CONFIG_IWLEGACY_DEBUGFS=y
# CONFIG_IWLWIFI_LEGACY_DEVICE_TRACING is not set
CONFIG_IWL4965=y
CONFIG_IWL3945=m
@ -2015,8 +2042,10 @@ CONFIG_KEYBOARD_ATKBD=y
# CONFIG_KEYBOARD_QT1070 is not set
# CONFIG_KEYBOARD_MCS is not set
# CONFIG_KEYBOARD_OPENCORES is not set
# CONFIG_KEYBOARD_SAMSUNG is not set
# CONFIG_KEYBOARD_QT2160 is not set
# CONFIG_KEYBOARD_TCA6416 is not set
# CONFIG_KEYBOARD_TCA8418 is not set
CONFIG_INPUT_MOUSE=y
CONFIG_MOUSE_PS2=y
# CONFIG_MOUSE_PS2_TOUCHKIT is not set
@ -2065,6 +2094,7 @@ CONFIG_TOUCHSCREEN_AD7879_I2C=m
# CONFIG_TOUCHSCREEN_CY8CTMG110 is not set
CONFIG_TOUCHSCREEN_DYNAPRO=m
CONFIG_TOUCHSCREEN_EETI=m
CONFIG_TOUCHSCREEN_EGALAX=m
CONFIG_TOUCHSCREEN_ELO=m
CONFIG_TOUCHSCREEN_FUJITSU=m
CONFIG_TOUCHSCREEN_GUNZE=m
@ -2081,6 +2111,7 @@ CONFIG_TOUCHSCREEN_TSC2007=m
CONFIG_TOUCHSCREEN_TOUCHIT213=m
CONFIG_TOUCHSCREEN_TOUCHRIGHT=m
CONFIG_TOUCHSCREEN_TOUCHWIN=m
CONFIG_TOUCHSCREEN_PIXCIR=m
CONFIG_TOUCHSCREEN_UCB1400=m
CONFIG_TOUCHSCREEN_WACOM_W8001=m
CONFIG_TOUCHSCREEN_USB_E2I=y
@ -2568,6 +2599,7 @@ CONFIG_VIDEO_V4L2_SUBDEV_API=y
#
CONFIG_V4L_USB_DRIVERS=y
CONFIG_VIDEO_CAPTURE_DRIVERS=y
CONFIG_V4L_PCI_DRIVERS=y
CONFIG_VIDEO_AU0828=m
CONFIG_VIDEO_BT848=m
CONFIG_VIDEO_BT848_DVB=y
@ -2618,6 +2650,8 @@ CONFIG_VIDEO_ZORAN_DC30=m
CONFIG_VIDEO_ZORAN_LML33=m
CONFIG_VIDEO_ZORAN_LML33R10=m
CONFIG_VIDEO_ZORAN_ZR36060=m
# CONFIG_V4L_ISA_PARPORT_DRIVERS is not set
# CONFIG_V4L_PLATFORM_DRIVERS is not set
CONFIG_VIDEO_FB_IVTV=m
CONFIG_VIDEO_SAA7164=m
CONFIG_VIDEO_TM6000=m
@ -2645,6 +2679,7 @@ CONFIG_MEDIA_TUNER_TEA5761=m
CONFIG_MEDIA_TUNER_TEA5767=m
CONFIG_MEDIA_TUNER_MT20XX=m
CONFIG_MEDIA_TUNER_MT2060=m
CONFIG_MEDIA_TUNER_MT2063=m
CONFIG_MEDIA_TUNER_MT2266=m
CONFIG_MEDIA_TUNER_MT2131=m
CONFIG_MEDIA_TUNER_QT1010=m
@ -2768,6 +2803,7 @@ CONFIG_DVB_DDBRIDGE=m
CONFIG_DVB_MB86A20S=m
CONFIG_DVB_USB_TECHNISAT_USB2=m
CONFIG_DVB_DIB9000=m
CONFIG_DVB_HD29L2=m
CONFIG_DVB_STV0367=m
#
@ -2843,6 +2879,7 @@ CONFIG_IR_RC6_DECODER=m
CONFIG_IR_JVC_DECODER=m
CONFIG_IR_SONY_DECODER=m
CONFIG_IR_RC5_SZ_DECODER=m
CONFIG_IR_SANYO_DECODER=m
CONFIG_IR_MCE_KBD_DECODER=m
CONFIG_IR_LIRC_CODEC=m
CONFIG_IR_IMON=m
@ -3152,6 +3189,7 @@ CONFIG_USB_SUSPEND=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_EHCI_TT_NEWSCHED=y
# CONFIG_USB_EHCI_MV is not set
CONFIG_USB_OHCI_HCD=y
# CONFIG_USB_OHCI_HCD_SSB is not set
CONFIG_USB_UHCI_HCD=y
@ -3236,6 +3274,7 @@ CONFIG_HID_PANTHERLORD=m
CONFIG_HID_PETALYNX=m
CONFIG_HID_PICOLCD=m
CONFIG_HID_ROCCAT=m
CONFIG_HID_ROCCAT_ISKU=m
CONFIG_HID_ROCCAT_KONE=m
CONFIG_HID_SAMSUNG=m
CONFIG_HID_SONY=m
@ -3262,6 +3301,7 @@ CONFIG_HID_HOLTEK=m
CONFIG_HOLTEK_FF=y
CONFIG_HID_SPEEDLINK=m
CONFIG_HID_WIIMOTE=m
CONFIG_HID_WIIMOTE_EXT=y
#
# USB Imaging devices
@ -3313,6 +3353,7 @@ CONFIG_USB_GSPCA_PAC7302=m
CONFIG_USB_GSPCA_STV0680=m
CONFIG_USB_GL860=m
CONFIG_USB_GSPCA_JEILINJ=m
CONFIG_USB_GSPCA_JL2005BCD=m
CONFIG_USB_GSPCA_KONICA=m
CONFIG_USB_GSPCA_XIRLINK_CIT=m
CONFIG_USB_GSPCA_SPCA1528=m
@ -3703,6 +3744,7 @@ CONFIG_NFSD=m
CONFIG_NFSD_V3=y
CONFIG_NFSD_V3_ACL=y
CONFIG_NFSD_V4=y
# CONFIG_NFSD_FAULT_INJECTION is not set
CONFIG_NFS_FSCACHE=y
# CONFIG_NFS_USE_LEGACY_DNS is not set
# CONFIG_NFS_USE_NEW_IDMAPPER is not set
@ -3749,6 +3791,7 @@ CONFIG_OCFS2_FS_USERSPACE_CLUSTER=m
CONFIG_BTRFS_FS=m
CONFIG_BTRFS_FS_POSIX_ACL=y
# CONFIG_BTRFS_FS_CHECK_INTEGRITY is not set
CONFIG_CONFIGFS_FS=y
@ -3923,6 +3966,7 @@ CONFIG_SECURITY_SELINUX_AVC_STATS=y
# CONFIG_SECURITY_APPARMOR is not set
CONFIG_AUDIT=y
CONFIG_AUDITSYSCALL=y
# CONFIG_AUDIT_LOGINUID_IMMUTABLE is not set
#
# Cryptographic options
@ -4061,6 +4105,7 @@ CONFIG_CGROUP_SCHED=y
CONFIG_CGROUP_MEM_RES_CTLR=y
CONFIG_CGROUP_MEM_RES_CTLR_SWAP=y # XXX disabled by default, pass 'swapaccount'
# CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED is not set
CONFIG_CGROUP_MEM_RES_CTLR_KMEM=y
CONFIG_CGROUP_PERF=y
CONFIG_BLK_CGROUP=y
@ -4232,6 +4277,8 @@ CONFIG_LEDS_CLASS=y
# CONFIG_LEDS_BD2802 is not set
# CONFIG_LEDS_S3C24XX is not set
CONFIG_LEDS_DELL_NETBOOKS=m
# CONFIG_LEDS_TCA6507 is not set
# CONFIG_LEDS_OT200 is not set
CONFIG_LEDS_TRIGGERS=y
CONFIG_LEDS_TRIGGER_TIMER=m
CONFIG_LEDS_TRIGGER_IDE_DISK=y
@ -4305,6 +4352,7 @@ CONFIG_APM_POWER=m
# CONFIG_BATTERY_DS2760 is not set
# CONFIG_BATTERY_DS2782 is not set
# CONFIG_BATTERY_SBS is not set
# CONFIG_BATTERY_BQ20Z75 is not set
# CONFIG_BATTERY_DS2780 is not set
# CONFIG_BATTERY_BQ27x00 is not set
@ -4313,6 +4361,7 @@ CONFIG_APM_POWER=m
# CONFIG_CHARGER_ISP1704 is not set
# CONFIG_CHARGER_MAX8903 is not set
# CONFIG_CHARGER_LP8727 is not set
# CONFIG_CHARGER_GPIO is not set
# CONFIG_CHARGER_PCF50633 is not set
@ -4415,6 +4464,8 @@ CONFIG_UWB_WHCI=m
CONFIG_UWB_I1480U=m
CONFIG_STAGING=y
# CONFIG_RTLLIB is not set
# CONFIG_ANDROID is not set
CONFIG_STAGING_MEDIA=y
# CONFIG_DVB_AS102 is not set
# CONFIG_ET131X is not set

7
config-powerpc-generic
View File

@ -353,3 +353,10 @@ CONFIG_RFKILL_GPIO=m
# Disable btrfs until it is shown to work with 64k pages (rhbz 747079)
# CONFIG_BTRFS_FS is not set
# CONFIG_OF_SELFTEST is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_INPUT_GP2A is not set
# CONFIG_INPUT_GPIO_TILT_POLLED is not set
# CONFIG_CPU_IDLE is not set
CONFIG_STRICT_DEVMEM=y
# CONFIG_V4L_RADIO_ISA_DRIVERS is not set

4
config-powerpc64
View File

@ -159,3 +159,7 @@ CONFIG_IO_EVENT_IRQ=y
CONFIG_HW_RANDOM_AMD=m
CONFIG_BPF_JIT=y
# CONFIG_PPC_ICSWX_PID is not set
# CONFIG_PPC_ICSWX_USE_SIGILL is not set
# CONFIG_BLK_DEV_PCIESSD_MTIP32XX is not set

1
config-sparc64-generic
View File

@ -195,3 +195,4 @@ CONFIG_CRYPTO_DEV_NIAGARA2=y
# CONFIG_MTD_OF_PARTS is not set
# CONFIG_MTD_PHYSMAP_OF is not set
# CONFIG_MMC_SDHCI_OF is not set
# CONFIG_OF_SELFTEST is not set

4
config-x86-32-generic
View File

@ -203,3 +203,7 @@ CONFIG_I2O_BUS=m
# CONFIG_EDAC_SBRIDGE is not set
# CONFIG_X86_WANT_INTEL_MID is not set
# CONFIG_OF_SELFTEST is not set
# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
# CONFIG_INPUT_GP2A is not set
# CONFIG_INPUT_GPIO_TILT_POLLED is not set

18
config-x86-generic
View File

@ -29,6 +29,7 @@ CONFIG_X86_PAT=y
CONFIG_X86_PM_TIMER=y
CONFIG_EFI=y
CONFIG_EFI_STUB=y
CONFIG_EFI_VARS=y
CONFIG_EFI_PCDP=y
CONFIG_FB_EFI=y
@ -108,6 +109,7 @@ CONFIG_PM_STD_PARTITION=""
CONFIG_PCI_MMCONFIG=y
CONFIG_PCI_BIOS=y
CONFIG_PCI_IOAPIC=y
CONFIG_HOTPLUG_PCI=y
CONFIG_HOTPLUG_PCI_COMPAQ=m
@ -192,6 +194,9 @@ CONFIG_PANASONIC_LAPTOP=m
CONFIG_SAMSUNG_LAPTOP=m
CONFIG_SONY_LAPTOP=m
CONFIG_TOPSTAR_LAPTOP=m
CONFIG_FUJITSU_TABLET=m
CONFIG_AMILO_RFKILL=m
CONFIG_ACPI_WMI=m
CONFIG_ACER_WMI=m
@ -211,6 +216,7 @@ CONFIG_XO15_EBOOK=m
# CONFIG_SMSC37B787_WDT is not set
CONFIG_W83697HF_WDT=m
CONFIG_VIA_WDT=m
CONFIG_CRASH_DUMP=y
CONFIG_PROC_VMCORE=y
@ -360,7 +366,7 @@ CONFIG_INTEL_IPS=m
# CONFIG_IBM_RTL is not set
CONFIG_VIDEO_VIA_CAMERA=m
# CONFIG_V4L_RADIO_ISA_DRIVERS is not set
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_X86_RESERVE_LOW=64
@ -370,6 +376,7 @@ CONFIG_PCH_PHUB=m
CONFIG_TRANSPARENT_HUGEPAGE=y
CONFIG_CRYPTO_AES_NI_INTEL=y
CONFIG_CRYPTO_SERPENT_SSE2_586=m
CONFIG_HP_ACCEL=m
@ -384,3 +391,12 @@ CONFIG_RELOCATABLE=y
# CONFIG_HYPERV is not set
# Depends on HOTPLUG_PCI_PCIE
CONFIG_BLK_DEV_PCIESSD_MTIP32XX=m
CONFIG_DRM_GMA500=m
# CONFIG_DRM_GMA600 is not set
# CONFIG_DRM_GMA3600 is not set
# Maybe enable in debug kernels?
# CONFIG_DEBUG_NMI_SELFTEST is not set

4
config-x86_64-generic
View File

@ -11,6 +11,8 @@ CONFIG_K8_NUMA=y
CONFIG_AMD_NUMA=y
CONFIG_X86_64_ACPI_NUMA=y
# CONFIG_NUMA_EMU is not set
# CONFIG_X86_NUMACHIP is not set
CONFIG_NR_CPUS=256
CONFIG_PHYSICAL_START=0x1000000
@ -20,6 +22,7 @@ CONFIG_IA32_EMULATION=y
CONFIG_AMD_IOMMU=y
CONFIG_AMD_IOMMU_STATS=y
CONFIG_AMD_IOMMU_V2=m
# CONFIG_IOMMU_DEBUG is not set
CONFIG_SWIOTLB=y
# CONFIG_CALGARY_IOMMU is not set
@ -40,6 +43,7 @@ CONFIG_PNP=y
CONFIG_BLK_DEV_AMD74XX=y
CONFIG_CRYPTO_AES_X86_64=y
CONFIG_CRYPTO_SERPENT_SSE2_X86_64=m
CONFIG_CRYPTO_TWOFISH_X86_64=m
CONFIG_CRYPTO_SALSA20_X86_64=m
CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL=m

95
e1000e-Avoid-wrong-check-on-TX-hang.patch
View File

@ -1,95 +0,0 @@
From 09357b00255c233705b1cf6d76a8d147340545b8 Mon Sep 17 00:00:00 2001
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Fri, 18 Nov 2011 14:25:00 +0000
Subject: [PATCH] e1000e: Avoid wrong check on TX hang
Based on the original patch submitted my Michael Wang
<wangyun@linux.vnet.ibm.com>.
Descriptors may not be write-back while checking TX hang with flag
FLAG2_DMA_BURST on.
So when we detect hang, we just flush the descriptor and detect
again for once.
-v2 change 1 to true and 0 to false and remove extra ()
CC: Michael Wang <wangyun@linux.vnet.ibm.com>
CC: Flavio Leitner <fbl@redhat.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/e1000e/e1000.h | 1 +
drivers/net/ethernet/intel/e1000e/netdev.c | 23 ++++++++++++++++++++---
2 files changed, 21 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h
index 9fe18d1..f478a22 100644
--- a/drivers/net/ethernet/intel/e1000e/e1000.h
+++ b/drivers/net/ethernet/intel/e1000e/e1000.h
@@ -309,6 +309,7 @@ struct e1000_adapter {
u32 txd_cmd;
bool detect_tx_hung;
+ bool tx_hang_recheck;
u8 tx_timeout_factor;
u32 tx_int_delay;
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index c6e9763..c12df69 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -1014,6 +1014,7 @@ static void e1000_print_hw_hang(struct work_struct *work)
struct e1000_adapter *adapter = container_of(work,
struct e1000_adapter,
print_hang_task);
+ struct net_device *netdev = adapter->netdev;
struct e1000_ring *tx_ring = adapter->tx_ring;
unsigned int i = tx_ring->next_to_clean;
unsigned int eop = tx_ring->buffer_info[i].next_to_watch;
@@ -1025,6 +1026,21 @@ static void e1000_print_hw_hang(struct work_struct *work)
if (test_bit(__E1000_DOWN, &adapter->state))
return;
+ if (!adapter->tx_hang_recheck &&
+ (adapter->flags2 & FLAG2_DMA_BURST)) {
+ /* May be block on write-back, flush and detect again
+ * flush pending descriptor writebacks to memory
+ */
+ ew32(TIDV, adapter->tx_int_delay | E1000_TIDV_FPD);
+ /* execute the writes immediately */
+ e1e_flush();
+ adapter->tx_hang_recheck = true;
+ return;
+ }
+ /* Real hang detected */
+ adapter->tx_hang_recheck = false;
+ netif_stop_queue(netdev);
+
e1e_rphy(hw, PHY_STATUS, &phy_status);
e1e_rphy(hw, PHY_1000T_STATUS, &phy_1000t_status);
e1e_rphy(hw, PHY_EXT_STATUS, &phy_ext_status);
@@ -1145,10 +1161,10 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter)
if (tx_ring->buffer_info[i].time_stamp &&
time_after(jiffies, tx_ring->buffer_info[i].time_stamp
+ (adapter->tx_timeout_factor * HZ)) &&
- !(er32(STATUS) & E1000_STATUS_TXOFF)) {
+ !(er32(STATUS) & E1000_STATUS_TXOFF))
schedule_work(&adapter->print_hang_task);
- netif_stop_queue(netdev);
- }
+ else
+ adapter->tx_hang_recheck = false;
}
adapter->total_tx_bytes += total_tx_bytes;
adapter->total_tx_packets += total_tx_packets;
@@ -3838,6 +3854,7 @@ static int e1000_open(struct net_device *netdev)
e1000_irq_enable(adapter);
+ adapter->tx_hang_recheck = false;
netif_start_queue(netdev);
adapter->idle_check = true;
--
1.7.9

19
ext4-Fix-error-handling-on-inode-bitmap-corruption.patch
View File

@ -1,19 +0,0 @@
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 00beb4f..8fb6844 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -885,8 +885,12 @@ got:
if (IS_DIRSYNC(inode))
ext4_handle_sync(handle);
if (insert_inode_locked(inode) < 0) {
- err = -EINVAL;
- goto fail_drop;
+ /*
+ * Likely a bitmap corruption causing inode to be allocated
+ * twice.
+ */
+ err = -EIO;
+ goto fail;
}
spin_lock(&sbi->s_next_gen_lock);
inode->i_generation = sbi->s_next_generation++;

326
hibernate-freeze-filesystems.patch
View File

@ -1,59 +1,35 @@
From: Rafael J. Wysocki <rjw@sisk.pl>
commit b94887bbc0621e1e8402e7f0ec4bc3adf46c9a6e
Author: Rafael J. Wysocki <rjw@sisk.pl>
Date: Fri Feb 17 12:42:08 2012 -0500
Freeze all filesystems during system suspend and (kernel-driven)
hibernation by calling freeze_supers() for all superblocks and thaw
them during the subsequent resume with the help of thaw_supers().
Freeze all filesystems during system suspend and (kernel-driven)
hibernation by calling freeze_supers() for all superblocks and thaw
them during the subsequent resume with the help of thaw_supers().
This makes filesystems stay in a consistent state in case something
goes wrong between system suspend (or hibernation) and the subsequent
resume (e.g. journal replays won't be necessary in those cases). In
particular, this should help to solve a long-standing issue that, in
some cases, during resume from hibernation the boot loader causes the
journal to be replied for the filesystem containing the kernel image
and/or initrd causing it to become inconsistent with the information
stored in the hibernation image.
The user-space-driven hibernation (s2disk) is not covered by this
change, because the freezing of filesystems prevents s2disk from
accessing device special files it needs to do its job.
This change is based on earlier work by Nigel Cunningham.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Rebased to 3.3-rc3 by Josh Boyer <jwboyer@redhat.com>
This makes filesystems stay in a consistent state in case something
goes wrong between system suspend (or hibernation) and the subsequent
resume (e.g. journal replays won't be necessary in those cases). In
particular, this should help to solve a long-standing issue that, in
some cases, during resume from hibernation the boot loader causes the
journal to be replied for the filesystem containing the kernel image
and/or initrd causing it to become inconsistent with the information
stored in the hibernation image.
The user-space-driven hibernation (s2disk) is not covered by this
change, because the freezing of filesystems prevents s2disk from
accessing device special files it needs to do its job.
This change is based on earlier work by Nigel Cunningham.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
fs/super.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++
include/linux/fs.h | 3 +
kernel/power/hibernate.c | 11 +++++--
kernel/power/power.h | 23 --------------
kernel/power/suspend.c | 42 +++++++++++++++++++++++++++
5 files changed, 128 insertions(+), 24 deletions(-)
Index: linux/include/linux/fs.h
===================================================================
--- linux.orig/include/linux/fs.h
+++ linux/include/linux/fs.h
@@ -210,6 +210,7 @@ struct inodes_stat_t {
#define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define MS_I_VERSION (1<<23) /* Update inode I_version field */
#define MS_STRICTATIME (1<<24) /* Always perform atime updates */
+#define MS_FROZEN (1<<25) /* Frozen filesystem */
#define MS_NOSEC (1<<28)
#define MS_BORN (1<<29)
#define MS_ACTIVE (1<<30)
@@ -2501,6 +2502,8 @@ extern void drop_super(struct super_bloc
extern void iterate_supers(void (*)(struct super_block *, void *), void *);
extern void iterate_supers_type(struct file_system_type *,
void (*)(struct super_block *, void *), void *);
+extern int freeze_supers(void);
+extern void thaw_supers(void);
extern int dcache_dir_open(struct inode *, struct file *);
extern int dcache_dir_close(struct inode *, struct file *);
Index: linux/fs/super.c
===================================================================
--- linux.orig/fs/super.c
+++ linux/fs/super.c
@@ -594,6 +594,79 @@ void iterate_supers_type(struct file_sys
diff --git a/fs/super.c b/fs/super.c
index 6015c02..c8057fa 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -594,6 +594,79 @@ void iterate_supers_type(struct file_system_type *type,
EXPORT_SYMBOL(iterate_supers_type);
/**
@ -65,7 +41,7 @@ Index: linux/fs/super.c
+
+ spin_lock(&sb_lock);
+ list_for_each_entry(sb, &super_blocks, s_list) {
+ if (list_empty(&sb->s_instances))
+ if (hlist_unhashed(&sb->s_instances))
+ continue;
+ sb->s_count++;
+ spin_unlock(&sb_lock);
@ -99,7 +75,7 @@ Index: linux/fs/super.c
+ * frozen in the right order (eg. loopback on ext3).
+ */
+ list_for_each_entry_reverse(sb, &super_blocks, s_list) {
+ if (list_empty(&sb->s_instances))
+ if (hlist_unhashed(&sb->s_instances))
+ continue;
+ sb->s_count++;
+ spin_unlock(&sb_lock);
@ -133,98 +109,31 @@ Index: linux/fs/super.c
* get_super - get the superblock of a device
* @bdev: device to get the superblock for
*
Index: linux/kernel/power/power.h
===================================================================
--- linux.orig/kernel/power/power.h
+++ linux/kernel/power/power.h
@@ -1,3 +1,4 @@
+#include <linux/fs.h>
#include <linux/suspend.h>
#include <linux/suspend_ioctls.h>
#include <linux/utsname.h>
@@ -227,25 +228,3 @@ enum {
#define TEST_MAX (__TEST_AFTER_LAST - 1)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 386da09..a164f4a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -210,6 +210,7 @@ struct inodes_stat_t {
#define MS_KERNMOUNT (1<<22) /* this is a kern_mount call */
#define MS_I_VERSION (1<<23) /* Update inode I_version field */
#define MS_STRICTATIME (1<<24) /* Always perform atime updates */
+#define MS_FROZEN (1<<25) /* Frozen filesystem */
#define MS_NOSEC (1<<28)
#define MS_BORN (1<<29)
#define MS_ACTIVE (1<<30)
@@ -2501,6 +2502,8 @@ extern void drop_super(struct super_block *sb);
extern void iterate_supers(void (*)(struct super_block *, void *), void *);
extern void iterate_supers_type(struct file_system_type *,
void (*)(struct super_block *, void *), void *);
+extern int freeze_supers(void);
+extern void thaw_supers(void);
extern int pm_test_level;
-
-#ifdef CONFIG_SUSPEND_FREEZER
-static inline int suspend_freeze_processes(void)
-{
- int error = freeze_processes();
- return error ? : freeze_kernel_threads();
-}
-
-static inline void suspend_thaw_processes(void)
-{
- thaw_processes();
-}
-#else
-static inline int suspend_freeze_processes(void)
-{
- return 0;
-}
-
-static inline void suspend_thaw_processes(void)
-{
-}
-#endif
Index: linux/kernel/power/suspend.c
===================================================================
--- linux.orig/kernel/power/suspend.c
+++ linux/kernel/power/suspend.c
@@ -29,6 +29,48 @@
#include "power.h"
+#ifdef CONFIG_SUSPEND_FREEZER
+
+static inline int suspend_freeze_processes(void)
+{
+ int error;
+
+ error = freeze_processes();
+ if (error)
+ return error;
+
+ error = freeze_supers();
+ if (error) {
+ thaw_processes();
+ return error;
+ }
+
+ error = freeze_kernel_threads();
+ if (error)
+ thaw_supers();
+
+ return error;
+}
+
+static inline void suspend_thaw_processes(void)
+{
+ thaw_supers();
+ thaw_processes();
+}
+
+#else /* !CONFIG_SUSPEND_FREEZER */
+
+static inline int suspend_freeze_processes(void)
+{
+ return 0;
+}
+
+static inline void suspend_thaw_processes(void)
+{
+}
+
+#endif /* !CONFIG_SUSPEND_FREEZER */
+
const char *const pm_states[PM_SUSPEND_MAX] = {
[PM_SUSPEND_STANDBY] = "standby",
[PM_SUSPEND_MEM] = "mem",
Index: linux/kernel/power/hibernate.c
===================================================================
--- linux.orig/kernel/power/hibernate.c
+++ linux/kernel/power/hibernate.c
extern int dcache_dir_open(struct inode *, struct file *);
extern int dcache_dir_close(struct inode *, struct file *);
diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c
index 6d6d288..492fc62 100644
--- a/kernel/power/hibernate.c
+++ b/kernel/power/hibernate.c
@@ -626,12 +626,17 @@ int hibernate(void)
if (error)
goto Finish;
@ -254,4 +163,125 @@ Index: linux/kernel/power/hibernate.c
Thaw:
thaw_processes();
Finish:
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 21724ee..40d6f64 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -1,3 +1,4 @@
+#include <linux/fs.h>
#include <linux/suspend.h>
#include <linux/suspend_ioctls.h>
#include <linux/utsname.h>
@@ -227,45 +228,3 @@ enum {
#define TEST_MAX (__TEST_AFTER_LAST - 1)
extern int pm_test_level;
-
-#ifdef CONFIG_SUSPEND_FREEZER
-static inline int suspend_freeze_processes(void)
-{
- int error;
-
- error = freeze_processes();
-
- /*
- * freeze_processes() automatically thaws every task if freezing
- * fails. So we need not do anything extra upon error.
- */
- if (error)
- goto Finish;
-
- error = freeze_kernel_threads();
-
- /*
- * freeze_kernel_threads() thaws only kernel threads upon freezing
- * failure. So we have to thaw the userspace tasks ourselves.
- */
- if (error)
- thaw_processes();
-
- Finish:
- return error;
-}
-
-static inline void suspend_thaw_processes(void)
-{
- thaw_processes();
-}
-#else
-static inline int suspend_freeze_processes(void)
-{
- return 0;
-}
-
-static inline void suspend_thaw_processes(void)
-{
-}
-#endif
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index 4fd51be..5f51fc7 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -29,6 +29,62 @@
#include "power.h"
+#ifdef CONFIG_SUSPEND_FREEZER
+
+static inline int suspend_freeze_processes(void)
+{
+ int error;
+
+ error = freeze_processes();
+
+ /*
+ * freeze_processes() automatically thaws every task if freezing
+ * fails. So we need not do anything extra upon error.
+ */
+
+ if (error)
+ goto Finish;
+
+ error = freeze_supers();
+ if (error) {
+ thaw_processes();
+ goto Finish;
+ }
+
+ error = freeze_kernel_threads();
+
+ /*
+ * freeze_kernel_threads() thaws only kernel threads upon freezing
+ * failure. So we have to thaw the userspace tasks ourselves.
+ */
+ if (error) {
+ thaw_supers();
+ thaw_processes();
+ }
+
+Finish:
+ return error;
+}
+
+static inline void suspend_thaw_processes(void)
+{
+ thaw_supers();
+ thaw_processes();
+}
+
+#else /* !CONFIG_SUSPEND_FREEZER */
+
+static inline int suspend_freeze_processes(void)
+{
+ return 0;
+}
+
+static inline void suspend_thaw_processes(void)
+{
+}
+
+#endif /* !CONFIG_SUSPEND_FREEZER */
+
const char *const pm_states[PM_SUSPEND_MAX] = {
[PM_SUSPEND_STANDBY] = "standby",
[PM_SUSPEND_MEM] = "mem",

34
hpsa-add-irqf-shared.patch
View File

@ -1,34 +0,0 @@
hpsa: Add IRQF_SHARED back in for the non-MSI(X) interrupt handler
From: Stephen M. Cameron <scameron@beardog.cce.hp.com>
IRQF_SHARED is required for older controllers that don't support MSI(X)
and which may end up sharing an interrupt. All the controllers hpsa
normally supports have MSI(X) capability, but older controllers may be
encountered via the hpsa_allow_any=1 module parameter.
Also remove deprecated IRQF_DISABLED.
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
---
drivers/scsi/hpsa.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
RHBZ 754907
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 865d452..594ce83 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4072,10 +4072,10 @@ static int hpsa_request_irq(struct ctlr_info *h,
if (h->msix_vector || h->msi_vector)
rc = request_irq(h->intr[h->intr_mode], msixhandler,
- IRQF_DISABLED, h->devname, h);
+ 0, h->devname, h);
else
rc = request_irq(h->intr[h->intr_mode], intxhandler,
- IRQF_DISABLED, h->devname, h);
+ IRQF_SHARED, h->devname, h);
if (rc) {
dev_err(&h->pdev->dev, "unable to get irq %d for %s\n",
h->intr[h->intr_mode], h->devname);

76
kernel.spec
View File

@ -54,19 +54,19 @@ Summary: The Linux kernel
# For non-released -rc kernels, this will be appended after the rcX and
# gitX tags, so a 3 here would become part of release "0.rcX.gitX.3"
#
%global baserelease 5
%global baserelease 1
%global fedora_build %{baserelease}
# base_sublevel is the kernel version we're starting with and patching
# on top of -- for example, 2.6.22-rc7-git1 starts with a 2.6.21 base,
# which yields a base_sublevel of 21.
%define base_sublevel 2
%define base_sublevel 3
## If this is a released kernel ##
%if 0%{?released_kernel}
# Do we have a -stable update to apply?
%define stable_update 10
%define stable_update 0
# Is it a -stable RC?
%define stable_rc 0
# Set rpm version accordingly
@ -725,7 +725,6 @@ Patch12016: disable-i8042-check-on-apple-mac.patch
Patch12303: dmar-disable-when-ricoh-multifunction.patch
Patch13002: revert-efi-rtclock.patch
Patch13003: efi-dont-map-boot-services-on-32bit.patch
Patch14000: hibernate-freeze-filesystems.patch
@ -738,39 +737,11 @@ Patch20000: utrace.patch
Patch21000: arm-omap-dt-compat.patch
Patch21001: arm-smsc-support-reading-mac-address-from-device-tree.patch
#rhbz 717735
Patch21045: nfs-client-freezer.patch
#rhbz 590880
Patch21050: alps.patch
Patch21070: ext4-Support-check-none-nocheck-mount-options.patch
Patch21071: ext4-Fix-error-handling-on-inode-bitmap-corruption.patch
#rhbz 769766
Patch21072: mac80211-fix-rx-key-NULL-ptr-deref-in-promiscuous-mode.patch
#rhbz 773392
Patch21073: KVM-x86-extend-struct-x86_emulate_ops-with-get_cpuid.patch
Patch21074: KVM-x86-fix-missing-checks-in-syscall-emulation.patch
#rhbz 728740
Patch21076: rtl8192cu-Fix-WARNING-on-suspend-resume.patch
#rhbz752176
Patch21080: sysfs-msi-irq-per-device.patch
#rhbz 782686
Patch21082: procfs-parse-mount-options.patch
Patch21083: procfs-add-hidepid-and-gid-mount-options.patch
Patch21084: proc-fix-null-pointer-deref-in-proc_pid_permission.patch
#rhbz 771058
Patch22100: msi-irq-sysfs-warning.patch
# rhbz 754907
Patch21101: hpsa-add-irqf-shared.patch
Patch21226: pci-crs-blacklist.patch
#rhbz 772772
@ -779,12 +750,8 @@ Patch21232: rt2x00_fix_MCU_request_failures.patch
#rhbz 788260
Patch21233: jbd2-clear-BH_Delay-and-BH_Unwritten-in-journal_unmap_buf.patch
#rhbz 785806
Patch21234: e1000e-Avoid-wrong-check-on-TX-hang.patch
#rhbz 754518
#Patch21235: scsi-sd_revalidate_disk-prevent-NULL-ptr-deref.patch
Patch21235: scsi-fix-sd_revalidate_disk-oops.patch
#rhbz 727865 730007
Patch21240: ACPICA-Fix-regression-in-FADT-revision-checks.patch
@ -1302,7 +1269,7 @@ ApplyOptionalPatch linux-2.6-upstream-reverts.patch -R
#
# ARM
#
ApplyPatch arm-omap-dt-compat.patch
# ApplyPatch arm-omap-dt-compat.patch
ApplyPatch arm-smsc-support-reading-mac-address-from-device-tree.patch
ApplyPatch taint-vbox.patch
@ -1418,7 +1385,6 @@ ApplyPatch disable-i8042-check-on-apple-mac.patch
# rhbz#605888
ApplyPatch dmar-disable-when-ricoh-multifunction.patch
ApplyPatch revert-efi-rtclock.patch
ApplyPatch efi-dont-map-boot-services-on-32bit.patch
ApplyPatch hibernate-freeze-filesystems.patch
@ -1428,51 +1394,18 @@ ApplyPatch lis3-improve-handling-of-null-rate.patch
# utrace.
ApplyPatch utrace.patch
#rhbz 752176
ApplyPatch sysfs-msi-irq-per-device.patch
# rhbz 754907
ApplyPatch hpsa-add-irqf-shared.patch
#ApplyPatch pci-crs-blacklist.patch
#rhbz 717735
ApplyPatch nfs-client-freezer.patch
#rhbz 590880
ApplyPatch alps.patch
#rhbz 771058
ApplyPatch msi-irq-sysfs-warning.patch
ApplyPatch ext4-Support-check-none-nocheck-mount-options.patch
ApplyPatch ext4-Fix-error-handling-on-inode-bitmap-corruption.patch
#rhbz 773392
ApplyPatch KVM-x86-extend-struct-x86_emulate_ops-with-get_cpuid.patch
ApplyPatch KVM-x86-fix-missing-checks-in-syscall-emulation.patch
#rhbz 728740
ApplyPatch rtl8192cu-Fix-WARNING-on-suspend-resume.patch
#rhbz 782686
ApplyPatch procfs-parse-mount-options.patch
ApplyPatch procfs-add-hidepid-and-gid-mount-options.patch
ApplyPatch proc-fix-null-pointer-deref-in-proc_pid_permission.patch
#rhbz 772772
ApplyPatch rt2x00_fix_MCU_request_failures.patch
#rhbz 788269
ApplyPatch jbd2-clear-BH_Delay-and-BH_Unwritten-in-journal_unmap_buf.patch
#rhbz 785806
ApplyPatch e1000e-Avoid-wrong-check-on-TX-hang.patch
#rhbz 754518
#ApplyPatch scsi-sd_revalidate_disk-prevent-NULL-ptr-deref.patch
ApplyPatch scsi-fix-sd_revalidate_disk-oops.patch
#rhbz 727865 730007
ApplyPatch ACPICA-Fix-regression-in-FADT-revision-checks.patch
@ -2222,6 +2155,7 @@ fi
%changelog
* Mon Mar 19 2012 Josh Boyer <jwboyer@redhat.com>
- Linux 3.3
- Drop compat-wireless infrastructure in preparation for 3.3 rebase
* Fri Mar 16 2012 Justin M. Forbes <jforbes@redhat.com>

10
linux-2.6-defaults-acpi-video.patch
View File

@ -1,13 +1,13 @@
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d8d7596..a1b7117 100644
index eaef02a..2029819 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -71,7 +71,7 @@ MODULE_AUTHOR("Bruno Ducrot");
@@ -69,7 +69,7 @@ MODULE_AUTHOR("Bruno Ducrot");
MODULE_DESCRIPTION("ACPI Video Driver");
MODULE_LICENSE("GPL");
-static int brightness_switch_enabled = 1;
+static int brightness_switch_enabled = 0;
-static bool brightness_switch_enabled = 1;
+static bool brightness_switch_enabled = 0;
module_param(brightness_switch_enabled, bool, 0644);
static int acpi_video_bus_add(struct acpi_device *device);
/*

4
linux-2.6-serial-460800.patch
View File

@ -1,7 +1,7 @@
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 2209620..659c1bb 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
--- a/drivers/tty/serial/8250/8250.c
+++ b/drivers/tty/serial/8250/8250.c
@@ -7,6 +7,9 @@
*
* Copyright (C) 2001 Russell King.

4
mm-thp-fix-pmd_bad-triggering.patch
View File

@ -363,7 +363,7 @@ index fa2f04e..e3090fc 100644
@@ -1251,12 +1251,20 @@ static inline unsigned long zap_pmd_range(struct mmu_gather *tlb,
VM_BUG_ON(!rwsem_is_locked(&tlb->mm->mmap_sem));
split_huge_page_pmd(vma->vm_mm, pmd);
} else if (zap_huge_pmd(tlb, vma, pmd))
} else if (zap_huge_pmd(tlb, vma, pmd, addr))
- continue;
+ goto next;
/* fall through */
@ -444,4 +444,4 @@ To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>

87
msi-irq-sysfs-warning.patch
View File

@ -1,87 +0,0 @@
commit 3ff0e97a1bc3059bfbcc1d864c5d4ff5f8d3c2b9
Author: Neil Horman <nhorman@tuxdriver.com>
Date: Tue Jan 3 10:17:21 2012 -0500
msi: fix imbalanced refcount of msi irq sysfs objects
This warning was recently reported to me:
------------[ cut here ]------------
WARNING: at lib/kobject.c:595 kobject_put+0x50/0x60()
Hardware name: VMware Virtual Platform
kobject: '(null)' (ffff880027b0df40): is not initialized, yet kobject_put() is
being called.
Modules linked in: vmxnet3(+) vmw_balloon i2c_piix4 i2c_core shpchp raid10
vmw_pvscsi
Pid: 630, comm: modprobe Tainted: G W 3.1.6-1.fc16.x86_64 #1
Call Trace:
[<ffffffff8106b73f>] warn_slowpath_common+0x7f/0xc0
[<ffffffff8106b836>] warn_slowpath_fmt+0x46/0x50
[<ffffffff810da293>] ? free_desc+0x63/0x70
[<ffffffff812a9aa0>] kobject_put+0x50/0x60
[<ffffffff812e4c25>] free_msi_irqs+0xd5/0x120
[<ffffffff812e524c>] pci_enable_msi_block+0x24c/0x2c0
[<ffffffffa017c273>] vmxnet3_alloc_intr_resources+0x173/0x240 [vmxnet3]
[<ffffffffa0182e94>] vmxnet3_probe_device+0x615/0x834 [vmxnet3]
[<ffffffff812d141c>] local_pci_probe+0x5c/0xd0
[<ffffffff812d2cb9>] pci_device_probe+0x109/0x130
[<ffffffff8138ba2c>] driver_probe_device+0x9c/0x2b0
[<ffffffff8138bceb>] __driver_attach+0xab/0xb0
[<ffffffff8138bc40>] ? driver_probe_device+0x2b0/0x2b0
[<ffffffff8138bc40>] ? driver_probe_device+0x2b0/0x2b0
[<ffffffff8138a8ac>] bus_for_each_dev+0x5c/0x90
[<ffffffff8138b63e>] driver_attach+0x1e/0x20
[<ffffffff8138b240>] bus_add_driver+0x1b0/0x2a0
[<ffffffffa0188000>] ? 0xffffffffa0187fff
[<ffffffff8138c246>] driver_register+0x76/0x140
[<ffffffff815ca414>] ? printk+0x51/0x53
[<ffffffffa0188000>] ? 0xffffffffa0187fff
[<ffffffff812d2996>] __pci_register_driver+0x56/0xd0
[<ffffffffa018803a>] vmxnet3_init_module+0x3a/0x3c [vmxnet3]
[<ffffffff81002042>] do_one_initcall+0x42/0x180
[<ffffffff810aad71>] sys_init_module+0x91/0x200
[<ffffffff815dccc2>] system_call_fastpath+0x16/0x1b
---[ end trace 44593438a59a9558 ]---
Using INTx interrupt, #Rx queues: 1.
It occurs when populate_msi_sysfs fails, which in turn causes free_msi_irqs to
be called. Because populate_msi_sysfs fails, we never registered any of the
msi irq sysfs objects, but free_msi_irqs still calls kobject_del and kobject_put
on each of them, which gets flagged in the above stack trace.
The fix is pretty straightforward. We can key of the parent pointer in the
kobject. It is only set if the kobject_init_and_add succededs in
populate_msi_sysfs. If anything fails there, each kobject has its parent reset
to NULL
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: Bjorn Helgaas <bhelgaas@google.com>
CC: Greg Kroah-Hartman <gregkh@suse.de>
CC: linux-pci@vger.kernel.org
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 337e16a..82de95e 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -323,8 +323,18 @@ static void free_msi_irqs(struct pci_dev *dev)
if (list_is_last(&entry->list, &dev->msi_list))
iounmap(entry->mask_base);
}
- kobject_del(&entry->kobj);
- kobject_put(&entry->kobj);
+
+ /*
+ * Its possible that we get into this path
+ * When populate_msi_sysfs fails, which means the entries
+ * were not registered with sysfs. In that case don't
+ * unregister them.
+ */
+ if (entry->kobj.parent) {
+ kobject_del(&entry->kobj);
+ kobject_put(&entry->kobj);
+ }
+
list_del(&entry->list);
kfree(entry);
}

197
nfs-client-freezer.patch
View File

@ -1,197 +0,0 @@
@@ -, +, @@
fs/nfs/inode.c | 3 ++-
fs/nfs/nfs3proc.c | 3 ++-
fs/nfs/nfs4proc.c | 5 +++--
fs/nfs/proc.c | 3 ++-
include/linux/freezer.h | 28 ++++++++++++++++++++++++++++
net/sunrpc/sched.c | 3 ++-
6 files changed, 39 insertions(+), 6 deletions(-)
--- a/fs/nfs/inode.c
+++ a/fs/nfs/inode.c
@@ -38,6 +38,7 @@
#include <linux/nfs_xdr.h>
#include <linux/slab.h>
#include <linux/compat.h>
+#include <linux/freezer.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -77,7 +78,7 @@ int nfs_wait_bit_killable(void *word)
{
if (fatal_signal_pending(current))
return -ERESTARTSYS;
- schedule();
+ freezable_schedule();
return 0;
}
--- a/fs/nfs/nfs3proc.c
+++ a/fs/nfs/nfs3proc.c
@@ -17,6 +17,7 @@
#include <linux/nfs_page.h>
#include <linux/lockd/bind.h>
#include <linux/nfs_mount.h>
+#include <linux/freezer.h>
#include "iostat.h"
#include "internal.h"
@@ -32,7 +33,7 @@ nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
res = rpc_call_sync(clnt, msg, flags);
if (res != -EJUKEBOX && res != -EKEYEXPIRED)
break;
- schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME);
+ freezable_schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME);
res = -ERESTARTSYS;
} while (!fatal_signal_pending(current));
return res;
--- a/fs/nfs/nfs4proc.c
+++ a/fs/nfs/nfs4proc.c
@@ -53,6 +53,7 @@
#include <linux/sunrpc/bc_xprt.h>
#include <linux/xattr.h>
#include <linux/utsname.h>
+#include <linux/freezer.h>
#include "nfs4_fs.h"
#include "delegation.h"
@@ -241,7 +242,7 @@ static int nfs4_delay(struct rpc_clnt *clnt, long *timeout)
*timeout = NFS4_POLL_RETRY_MIN;
if (*timeout > NFS4_POLL_RETRY_MAX)
*timeout = NFS4_POLL_RETRY_MAX;
- schedule_timeout_killable(*timeout);
+ freezable_schedule_timeout_killable(*timeout);
if (fatal_signal_pending(current))
res = -ERESTARTSYS;
*timeout <<= 1;
@@ -3950,7 +3951,7 @@ int nfs4_proc_delegreturn(struct inode *inode, struct rpc_cred *cred, const nfs4
static unsigned long
nfs4_set_lock_task_retry(unsigned long timeout)
{
- schedule_timeout_killable(timeout);
+ freezable_schedule_timeout_killable(timeout);
timeout <<= 1;
if (timeout > NFS4_LOCK_MAXTIMEOUT)
return NFS4_LOCK_MAXTIMEOUT;
--- a/fs/nfs/proc.c
+++ a/fs/nfs/proc.c
@@ -41,6 +41,7 @@
#include <linux/nfs_fs.h>
#include <linux/nfs_page.h>
#include <linux/lockd/bind.h>
+#include <linux/freezer.h>
#include "internal.h"
#define NFSDBG_FACILITY NFSDBG_PROC
@@ -59,7 +60,7 @@ nfs_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
res = rpc_call_sync(clnt, msg, flags);
if (res != -EKEYEXPIRED)
break;
- schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME);
+ freezable_schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME);
res = -ERESTARTSYS;
} while (!fatal_signal_pending(current));
return res;
--- a/include/linux/freezer.h
+++ a/include/linux/freezer.h
@@ -135,6 +135,29 @@ static inline void set_freezable_with_signal(void)
}
/*
+ * These macros are intended to be used whenever you want allow a task that's
+ * sleeping in TASK_UNINTERRUPTIBLE or TASK_KILLABLE state to be frozen. Note
+ * that neither return any clear indication of whether a freeze event happened
+ * while in this function.
+ */
+
+/* Like schedule(), but should not block the freezer. */
+#define freezable_schedule() \
+({ \
+ freezer_do_not_count(); \
+ schedule(); \
+ freezer_count(); \
+})
+
+/* Like schedule_timeout_killable(), but should not block the freezer. */
+#define freezable_schedule_timeout_killable(timeout) \
+({ \
+ freezer_do_not_count(); \
+ schedule_timeout_killable(timeout); \
+ freezer_count(); \
+})
+
+/*
* Freezer-friendly wrappers around wait_event_interruptible(),
* wait_event_killable() and wait_event_interruptible_timeout(), originally
* defined in <linux/wait.h>
@@ -194,6 +217,11 @@ static inline int freezer_should_skip(struct task_struct *p) { return 0; }
static inline void set_freezable(void) {}
static inline void set_freezable_with_signal(void) {}
+#define freezable_schedule() schedule()
+
+#define freezable_schedule_timeout_killable(timeout) \
+ schedule_timeout_killable(timeout)
+
#define wait_event_freezable(wq, condition) \
wait_event_interruptible(wq, condition)
--- a/net/sunrpc/sched.c
+++ a/net/sunrpc/sched.c
@@ -18,6 +18,7 @@
#include <linux/smp.h>
#include <linux/spinlock.h>
#include <linux/mutex.h>
+#include <linux/freezer.h>
#include <linux/sunrpc/clnt.h>
@@ -231,7 +232,7 @@ static int rpc_wait_bit_killable(void *word)
{
if (fatal_signal_pending(current))
return -ERESTARTSYS;
- schedule();
+ freezable_schedule();
return 0;
}
include/linux/freezer.h | 21 ++++++++++++++++++---
1 files changed, 18 insertions(+), 3 deletions(-)
--- a/include/linux/freezer.h
+++ a/include/linux/freezer.h
@@ -141,18 +141,33 @@ static inline void set_freezable_with_signal(void)
* while in this function.
*/
-/* Like schedule(), but should not block the freezer. */
+/*
+ * Like schedule(), but should not block the freezer. It may return immediately
+ * if it ends up racing with the freezer. Callers must be able to deal with
+ * spurious wakeups.
+ */
#define freezable_schedule() \
({ \
freezer_do_not_count(); \
- schedule(); \
+ if (!try_to_freeze()) \
+ schedule(); \
freezer_count(); \
})
-/* Like schedule_timeout_killable(), but should not block the freezer. */
+/*
+ * Like schedule_timeout_killable(), but should not block the freezer. It may
+ * end up returning immediately if it ends up racing with the freezer. Callers
+ * must be able to deal with the loose wakeup timing that can occur when the
+ * freezer races in. When that occurs, this function will return the timeout
+ * value instead of 0.
+ */
#define freezable_schedule_timeout_killable(timeout) \
({ \
freezer_do_not_count(); \
+ if (try_to_freeze()) { \
+ freezer_count(); \
+ return timeout; \
+ } \
schedule_timeout_killable(timeout); \
freezer_count(); \
})

44
proc-fix-null-pointer-deref-in-proc_pid_permission.patch
View File

@ -1,44 +0,0 @@
From a2ef990ab5a6705a356d146dd773a3b359787497 Mon Sep 17 00:00:00 2001
From: Xiaotian Feng <xtfeng@gmail.com>
Date: Thu, 12 Jan 2012 17:17:08 -0800
Subject: [PATCH] proc: fix null pointer deref in proc_pid_permission()
get_proc_task() can fail to search the task and return NULL,
put_task_struct() will then bomb the kernel with following oops:
BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
IP: [<ffffffff81217d34>] proc_pid_permission+0x64/0xe0
PGD 112075067 PUD 112814067 PMD 0
Oops: 0002 [#1] PREEMPT SMP
This is a regression introduced by commit 0499680a ("procfs: add hidepid=
and gid= mount options"). The kernel should return -ESRCH if
get_proc_task() failed.
Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Vasiliy Kulikov <segoon@openwall.com>
Cc: Stephen Wilson <wilsons@start.ca>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
fs/proc/base.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 8173dfd..5485a53 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -654,6 +654,8 @@ static int proc_pid_permission(struct inode *inode, int mask)
bool has_perms;
task = get_proc_task(inode);
+ if (!task)
+ return -ESRCH;
has_perms = has_pid_permissions(pid, task, 1);
put_task_struct(task);
--
1.7.7.5

342
procfs-add-hidepid-and-gid-mount-options.patch
View File

@ -1,342 +0,0 @@
From 0499680a42141d86417a8fbaa8c8db806bea1201 Mon Sep 17 00:00:00 2001
From: Vasiliy Kulikov <segooon@gmail.com>
Date: Tue, 10 Jan 2012 15:11:31 -0800
Subject: [PATCH] procfs: add hidepid= and gid= mount options
Add support for mount options to restrict access to /proc/PID/
directories. The default backward-compatible "relaxed" behaviour is left
untouched.
The first mount option is called "hidepid" and its value defines how much
info about processes we want to be available for non-owners:
hidepid=0 (default) means the old behavior - anybody may read all
world-readable /proc/PID/* files.
hidepid=1 means users may not access any /proc/<pid>/ directories, but
their own. Sensitive files like cmdline, sched*, status are now protected
against other users. As permission checking done in proc_pid_permission()
and files' permissions are left untouched, programs expecting specific
files' modes are not confused.
hidepid=2 means hidepid=1 plus all /proc/PID/ will be invisible to other
users. It doesn't mean that it hides whether a process exists (it can be
learned by other means, e.g. by kill -0 $PID), but it hides process' euid
and egid. It compicates intruder's task of gathering info about running
processes, whether some daemon runs with elevated privileges, whether
another user runs some sensitive program, whether other users run any
program at all, etc.
gid=XXX defines a group that will be able to gather all processes' info
(as in hidepid=0 mode). This group should be used instead of putting
nonroot user in sudoers file or something. However, untrusted users (like
daemons, etc.) which are not supposed to monitor the tasks in the whole
system should not be added to the group.
hidepid=1 or higher is designed to restrict access to procfs files, which
might reveal some sensitive private information like precise keystrokes
timings:
http://www.openwall.com/lists/oss-security/2011/11/05/3
hidepid=1/2 doesn't break monitoring userspace tools. ps, top, pgrep, and
conky gracefully handle EPERM/ENOENT and behave as if the current user is
the only user running processes. pstree shows the process subtree which
contains "pstree" process.
Note: the patch doesn't deal with setuid/setgid issues of keeping
preopened descriptors of procfs files (like
https://lkml.org/lkml/2011/2/7/368). We rely on that the leaked
information like the scheduling counters of setuid apps doesn't threaten
anybody's privacy - only the user started the setuid program may read the
counters.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Greg KH <greg@kroah.com>
Cc: Theodore Tso <tytso@MIT.EDU>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: James Morris <jmorris@namei.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
Documentation/filesystems/proc.txt | 39 ++++++++++++++++++++
fs/proc/base.c | 69 +++++++++++++++++++++++++++++++++++-
fs/proc/inode.c | 8 ++++
fs/proc/root.c | 21 +++++++++--
include/linux/pid_namespace.h | 2 +
5 files changed, 135 insertions(+), 4 deletions(-)
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 0ec91f0..12fee13 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -41,6 +41,8 @@ Table of Contents
3.5 /proc/<pid>/mountinfo - Information about mounts
3.6 /proc/<pid>/comm & /proc/<pid>/task/<tid>/comm
+ 4 Configuring procfs
+ 4.1 Mount options
------------------------------------------------------------------------------
Preface
@@ -1542,3 +1544,40 @@ a task to set its own or one of its thread siblings comm value. The comm value
is limited in size compared to the cmdline value, so writing anything longer
then the kernel's TASK_COMM_LEN (currently 16 chars) will result in a truncated
comm value.
+
+
+------------------------------------------------------------------------------
+Configuring procfs
+------------------------------------------------------------------------------
+
+4.1 Mount options
+---------------------
+
+The following mount options are supported:
+
+ hidepid= Set /proc/<pid>/ access mode.
+ gid= Set the group authorized to learn processes information.
+
+hidepid=0 means classic mode - everybody may access all /proc/<pid>/ directories
+(default).
+
+hidepid=1 means users may not access any /proc/<pid>/ directories but their
+own. Sensitive files like cmdline, sched*, status are now protected against
+other users. This makes it impossible to learn whether any user runs
+specific program (given the program doesn't reveal itself by its behaviour).
+As an additional bonus, as /proc/<pid>/cmdline is unaccessible for other users,
+poorly written programs passing sensitive information via program arguments are
+now protected against local eavesdroppers.
+
+hidepid=2 means hidepid=1 plus all /proc/<pid>/ will be fully invisible to other
+users. It doesn't mean that it hides a fact whether a process with a specific
+pid value exists (it can be learned by other means, e.g. by "kill -0 $PID"),
+but it hides process' uid and gid, which may be learned by stat()'ing
+/proc/<pid>/ otherwise. It greatly complicates an intruder's task of gathering
+information about running processes, whether some daemon runs with elevated
+privileges, whether other user runs some sensitive program, whether other users
+run any program at all, etc.
+
+gid= defines a group authorized to learn processes information otherwise
+prohibited by hidepid=. If you use some daemon like identd which needs to learn
+information about processes information, just add identd to this group.
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 4d755fe..8173dfd 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -631,6 +631,50 @@ int proc_setattr(struct dentry *dentry, struct iattr *attr)
return 0;
}
+/*
+ * May current process learn task's sched/cmdline info (for hide_pid_min=1)
+ * or euid/egid (for hide_pid_min=2)?
+ */
+static bool has_pid_permissions(struct pid_namespace *pid,
+ struct task_struct *task,
+ int hide_pid_min)
+{
+ if (pid->hide_pid < hide_pid_min)
+ return true;
+ if (in_group_p(pid->pid_gid))
+ return true;
+ return ptrace_may_access(task, PTRACE_MODE_READ);
+}
+
+
+static int proc_pid_permission(struct inode *inode, int mask)
+{
+ struct pid_namespace *pid = inode->i_sb->s_fs_info;
+ struct task_struct *task;
+ bool has_perms;
+
+ task = get_proc_task(inode);
+ has_perms = has_pid_permissions(pid, task, 1);
+ put_task_struct(task);
+
+ if (!has_perms) {
+ if (pid->hide_pid == 2) {
+ /*
+ * Let's make getdents(), stat(), and open()
+ * consistent with each other. If a process
+ * may not stat() a file, it shouldn't be seen
+ * in procfs at all.
+ */
+ return -ENOENT;
+ }
+
+ return -EPERM;
+ }
+ return generic_permission(inode, mask);
+}
+
+
+
static const struct inode_operations proc_def_inode_operations = {
.setattr = proc_setattr,
};
@@ -1615,6 +1659,7 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
struct inode *inode = dentry->d_inode;
struct task_struct *task;
const struct cred *cred;
+ struct pid_namespace *pid = dentry->d_sb->s_fs_info;
generic_fillattr(inode, stat);
@@ -1623,6 +1668,14 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
stat->gid = 0;
task = pid_task(proc_pid(inode), PIDTYPE_PID);
if (task) {
+ if (!has_pid_permissions(pid, task, 2)) {
+ rcu_read_unlock();
+ /*
+ * This doesn't prevent learning whether PID exists,
+ * it only makes getattr() consistent with readdir().
+ */
+ return -ENOENT;
+ }
if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
task_dumpable(task)) {
cred = __task_cred(task);
@@ -3119,6 +3172,7 @@ static const struct inode_operations proc_tgid_base_inode_operations = {
.lookup = proc_tgid_base_lookup,
.getattr = pid_getattr,
.setattr = proc_setattr,
+ .permission = proc_pid_permission,
};
static void proc_flush_task_mnt(struct vfsmount *mnt, pid_t pid, pid_t tgid)
@@ -3322,6 +3376,12 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi
proc_pid_instantiate, iter.task, NULL);
}
+static int fake_filldir(void *buf, const char *name, int namelen,
+ loff_t offset, u64 ino, unsigned d_type)
+{
+ return 0;
+}
+
/* for the /proc/ directory itself, after non-process stuff has been done */
int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
{
@@ -3329,6 +3389,7 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
struct task_struct *reaper;
struct tgid_iter iter;
struct pid_namespace *ns;
+ filldir_t __filldir;
if (filp->f_pos >= PID_MAX_LIMIT + TGID_OFFSET)
goto out_no_task;
@@ -3350,8 +3411,13 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
for (iter = next_tgid(ns, iter);
iter.task;
iter.tgid += 1, iter = next_tgid(ns, iter)) {
+ if (has_pid_permissions(ns, iter.task, 2))
+ __filldir = filldir;
+ else
+ __filldir = fake_filldir;
+
filp->f_pos = iter.tgid + TGID_OFFSET;
- if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) {
+ if (proc_pid_fill_cache(filp, dirent, __filldir, iter) < 0) {
put_task_struct(iter.task);
goto out;
}
@@ -3686,6 +3752,7 @@ static const struct inode_operations proc_task_inode_operations = {
.lookup = proc_task_lookup,
.getattr = proc_task_getattr,
.setattr = proc_setattr,
+ .permission = proc_pid_permission,
};
static const struct file_operations proc_task_operations = {
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 27c762f..84fd323 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -106,6 +106,14 @@ void __init proc_init_inodecache(void)
static int proc_show_options(struct seq_file *seq, struct vfsmount *vfs)
{
+ struct super_block *sb = vfs->mnt_sb;
+ struct pid_namespace *pid = sb->s_fs_info;
+
+ if (pid->pid_gid)
+ seq_printf(seq, ",gid=%lu", (unsigned long)pid->pid_gid);
+ if (pid->hide_pid != 0)
+ seq_printf(seq, ",hidepid=%u", pid->hide_pid);
+
return 0;
}
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 6a8ac1d..46a15d8 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -38,10 +38,12 @@ static int proc_set_super(struct super_block *sb, void *data)
}
enum {
- Opt_err,
+ Opt_gid, Opt_hidepid, Opt_err,
};
static const match_table_t tokens = {
+ {Opt_hidepid, "hidepid=%u"},
+ {Opt_gid, "gid=%u"},
{Opt_err, NULL},
};
@@ -49,8 +51,7 @@ static int proc_parse_options(char *options, struct pid_namespace *pid)
{
char *p;
substring_t args[MAX_OPT_ARGS];
-
- pr_debug("proc: options = %s\n", options);
+ int option;
if (!options)
return 1;
@@ -63,6 +64,20 @@ static int proc_parse_options(char *options, struct pid_namespace *pid)
args[0].to = args[0].from = 0;
token = match_token(p, tokens, args);
switch (token) {
+ case Opt_gid:
+ if (match_int(&args[0], &option))
+ return 0;
+ pid->pid_gid = option;
+ break;
+ case Opt_hidepid:
+ if (match_int(&args[0], &option))
+ return 0;
+ if (option < 0 || option > 2) {
+ pr_err("proc: hidepid value must be between 0 and 2.\n");
+ return 0;
+ }
+ pid->hide_pid = option;
+ break;
default:
pr_err("proc: unrecognized mount option \"%s\" "
"or missing value\n", p);
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index 38d1032..e7cf666 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -30,6 +30,8 @@ struct pid_namespace {
#ifdef CONFIG_BSD_PROCESS_ACCT
struct bsd_acct_struct *bacct;
#endif
+ gid_t pid_gid;
+ int hide_pid;
};
extern struct pid_namespace init_pid_ns;
--
1.7.7.5

173
procfs-parse-mount-options.patch
View File

@ -1,173 +0,0 @@
From 97412950b10e64f347aec4a9b759395c2465adf6 Mon Sep 17 00:00:00 2001
From: Vasiliy Kulikov <segooon@gmail.com>
Date: Tue, 10 Jan 2012 15:11:27 -0800
Subject: [PATCH] procfs: parse mount options
Add support for procfs mount options. Actual mount options are coming in
the next patches.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Greg KH <greg@kroah.com>
Cc: Theodore Tso <tytso@MIT.EDU>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: James Morris <jmorris@namei.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
fs/proc/inode.c | 10 +++++++++
fs/proc/internal.h | 1 +
fs/proc/root.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++-
3 files changed, 64 insertions(+), 2 deletions(-)
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 51a1766..27c762f 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -7,6 +7,7 @@
#include <linux/time.h>
#include <linux/proc_fs.h>
#include <linux/kernel.h>
+#include <linux/pid_namespace.h>
#include <linux/mm.h>
#include <linux/string.h>
#include <linux/stat.h>
@@ -17,7 +18,9 @@
#include <linux/init.h>
#include <linux/module.h>
#include <linux/sysctl.h>
+#include <linux/seq_file.h>
#include <linux/slab.h>
+#include <linux/mount.h>
#include <asm/system.h>
#include <asm/uaccess.h>
@@ -101,12 +104,19 @@ void __init proc_init_inodecache(void)
init_once);
}
+static int proc_show_options(struct seq_file *seq, struct vfsmount *vfs)
+{
+ return 0;
+}
+
static const struct super_operations proc_sops = {
.alloc_inode = proc_alloc_inode,
.destroy_inode = proc_destroy_inode,
.drop_inode = generic_delete_inode,
.evict_inode = proc_evict_inode,
.statfs = simple_statfs,
+ .remount_fs = proc_remount,
+ .show_options = proc_show_options,
};
static void __pde_users_dec(struct proc_dir_entry *pde)
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 7838e5c..2925775 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -117,6 +117,7 @@ void pde_put(struct proc_dir_entry *pde);
int proc_fill_super(struct super_block *);
struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *);
+int proc_remount(struct super_block *sb, int *flags, char *data);
/*
* These are generic /proc routines that use the internal
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 03102d9..6a8ac1d 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -18,6 +18,7 @@
#include <linux/bitops.h>
#include <linux/mount.h>
#include <linux/pid_namespace.h>
+#include <linux/parser.h>
#include "internal.h"
@@ -36,6 +37,48 @@ static int proc_set_super(struct super_block *sb, void *data)
return err;
}
+enum {
+ Opt_err,
+};
+
+static const match_table_t tokens = {
+ {Opt_err, NULL},
+};
+
+static int proc_parse_options(char *options, struct pid_namespace *pid)
+{
+ char *p;
+ substring_t args[MAX_OPT_ARGS];
+
+ pr_debug("proc: options = %s\n", options);
+
+ if (!options)
+ return 1;
+
+ while ((p = strsep(&options, ",")) != NULL) {
+ int token;
+ if (!*p)
+ continue;
+
+ args[0].to = args[0].from = 0;
+ token = match_token(p, tokens, args);
+ switch (token) {
+ default:
+ pr_err("proc: unrecognized mount option \"%s\" "
+ "or missing value\n", p);
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+int proc_remount(struct super_block *sb, int *flags, char *data)
+{
+ struct pid_namespace *pid = sb->s_fs_info;
+ return !proc_parse_options(data, pid);
+}
+
static struct dentry *proc_mount(struct file_system_type *fs_type,
int flags, const char *dev_name, void *data)
{
@@ -43,11 +86,15 @@ static struct dentry *proc_mount(struct file_system_type *fs_type,
struct super_block *sb;
struct pid_namespace *ns;
struct proc_inode *ei;
+ char *options;
- if (flags & MS_KERNMOUNT)
+ if (flags & MS_KERNMOUNT) {
ns = (struct pid_namespace *)data;
- else
+ options = NULL;
+ } else {
ns = current->nsproxy->pid_ns;
+ options = data;
+ }
sb = sget(fs_type, proc_test_super, proc_set_super, ns);
if (IS_ERR(sb))
@@ -55,6 +102,10 @@ static struct dentry *proc_mount(struct file_system_type *fs_type,
if (!sb->s_root) {
sb->s_flags = flags;
+ if (!proc_parse_options(options, ns)) {
+ deactivate_locked_super(sb);
+ return ERR_PTR(-EINVAL);
+ }
err = proc_fill_super(sb);
if (err) {
deactivate_locked_super(sb);
--
1.7.7.5

10
rebase-notes.txt
View File

@ -1,10 +0,0 @@
* disable CONFIG_B43_BCMA_EXTRA (799657)
* Do not turn on CONFIG_NFS_USE_NEW_IDMAPPER in f15/f16. Steved will hunt you
down.
* Turn on the amilo-rfkill driver
* Remove the with_backports/compat-wireless stuff

76
revert-efi-rtclock.patch
View File

@ -1,76 +0,0 @@
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 3ae4128..e17c6d2 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -89,50 +89,26 @@ early_param("add_efi_memmap", setup_add_efi_memmap);
static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc)
{
- unsigned long flags;
- efi_status_t status;
-
- spin_lock_irqsave(&rtc_lock, flags);
- status = efi_call_virt2(get_time, tm, tc);
- spin_unlock_irqrestore(&rtc_lock, flags);
- return status;
+ return efi_call_virt2(get_time, tm, tc);
}
static efi_status_t virt_efi_set_time(efi_time_t *tm)
{
- unsigned long flags;
- efi_status_t status;
-
- spin_lock_irqsave(&rtc_lock, flags);
- status = efi_call_virt1(set_time, tm);
- spin_unlock_irqrestore(&rtc_lock, flags);
- return status;
+ return efi_call_virt1(set_time, tm);
}
static efi_status_t virt_efi_get_wakeup_time(efi_bool_t *enabled,
efi_bool_t *pending,
efi_time_t *tm)
{
- unsigned long flags;
- efi_status_t status;
-
- spin_lock_irqsave(&rtc_lock, flags);
- status = efi_call_virt3(get_wakeup_time,
- enabled, pending, tm);
- spin_unlock_irqrestore(&rtc_lock, flags);
- return status;
+ return efi_call_virt3(get_wakeup_time,
+ enabled, pending, tm);
}
static efi_status_t virt_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm)
{
- unsigned long flags;
- efi_status_t status;
-
- spin_lock_irqsave(&rtc_lock, flags);
- status = efi_call_virt2(set_wakeup_time,
- enabled, tm);
- spin_unlock_irqrestore(&rtc_lock, flags);
- return status;
+ return efi_call_virt2(set_wakeup_time,
+ enabled, tm);
}
static efi_status_t virt_efi_get_variable(efi_char16_t *name,
@@ -232,14 +208,11 @@ static efi_status_t __init phys_efi_set_virtual_address_map(
static efi_status_t __init phys_efi_get_time(efi_time_t *tm,
efi_time_cap_t *tc)
{
- unsigned long flags;
efi_status_t status;
- spin_lock_irqsave(&rtc_lock, flags);
efi_call_phys_prelog();
status = efi_call_phys2(efi_phys.get_time, tm, tc);
efi_call_phys_epilog();
- spin_unlock_irqrestore(&rtc_lock, flags);
return status;
}

163
rtl8192cu-Fix-WARNING-on-suspend-resume.patch
View File

@ -1,163 +0,0 @@
A recent LKML thread (http://lkml.indiana.edu/hypermail/linux/kernel/1112.3/00965.html)
discusses warnings that occur during a suspend/resume cycle. The driver
attempts to read the firmware file before userspace is ready, leading to the
following warning:
WARNING: at drivers/base/firmware_class.c:537 _request_firmware+0x3f6/0x420()
For rtl8192cu, the problem is fixed by storing the firmware in a global buffer
rather than one allocated per device. The usage count is increased when
suspending and decreased when resuming. This way, the firmware is retained
through a suspend/resume cycle, and does not have to be reread.
This patch should fix the bug reported in
https://bugzilla.redhat.com/show_bug.cgi?id=771002.
Note: This patch also touches rtl8192ce as the "firmware" loaded message
is now printed in the wrong place.
Note: This patch also touches rtl8192ce as the "firmware" loaded message
is now printed in the wrong place.
Reported-by: Mohammed Arafa <bugzilla@xxxxxxxxxxxx>
Reported-by: Dave Jones <davej@xxxxxxxxxx>
Signed-off-by: Larry Finger <Larry.Finger@xxxxxxxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Stable <stable@xxxxxxxxxxxxxxx>
---
drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c | 1 -
drivers/net/wireless/rtlwifi/rtl8192ce/sw.c | 1 +
drivers/net/wireless/rtlwifi/rtl8192cu/sw.c | 58 +++++++++++++++++----
3 files changed, 49 insertions(+), 11 deletions(-)
--- linux-2.6/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c 2012-01-13 13:07:58.830625006 -0500
+++ linux-2.6/drivers/net/wireless/rtlwifi/rtl8192c/fw_common.c 2012-01-13 13:08:06.825439927 -0500
@@ -227,7 +227,6 @@ int rtl92c_download_fw(struct ieee80211_
u32 fwsize;
enum version_8192c version = rtlhal->version;
- pr_info("Loading firmware file %s\n", rtlpriv->cfg->fw_name);
if (!rtlhal->pfirmware)
return 1;
--- linux-2.6/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
+++ linux-2.6/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
@@ -186,6 +186,7 @@ int rtl92c_init_sw_vars(struct ieee80211
memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size);
rtlpriv->rtlhal.fwsize = firmware->size;
release_firmware(firmware);
+ pr_info("rtl8192ce: Loaded firmware file %s\n", rtlpriv->cfg->fw_name);
return 0;
}
--- linux-2.6/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
+++ linux-2.6/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
@@ -43,6 +43,8 @@
#include "hw.h"
#include <linux/vmalloc.h>
#include <linux/module.h>
+#include <linux/atomic.h>
+#include <linux/types.h>
MODULE_AUTHOR("Georgia <georgia@realtek.com>");
MODULE_AUTHOR("Ziv Huang <ziv_huang@realtek.com>");
@@ -51,6 +53,10 @@ MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Realtek 8192C/8188C 802.11n USB wireless");
MODULE_FIRMWARE("rtlwifi/rtl8192cufw.bin");
+static char *rtl8192cu_firmware; /* pointer to firmware */
+static int firmware_size;
+static atomic_t usage_count;
+
static int rtl92cu_init_sw_vars(struct ieee80211_hw *hw)
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
@@ -62,12 +68,21 @@ static int rtl92cu_init_sw_vars(struct i
rtlpriv->dm.disable_framebursting = false;
rtlpriv->dm.thermalvalue = 0;
rtlpriv->dbg.global_debuglevel = rtlpriv->cfg->mod_params->debug;
- rtlpriv->rtlhal.pfirmware = vmalloc(0x4000);
- if (!rtlpriv->rtlhal.pfirmware) {
+
+ if (rtl8192cu_firmware) {
+ /* firmware already loaded - true for suspend/resume
+ * and multiple instances of the device */
+ rtlpriv->rtlhal.pfirmware = rtl8192cu_firmware;
+ rtlpriv->rtlhal.fwsize = firmware_size;
+ return 0;
+ }
+ rtl8192cu_firmware = vzalloc(0x4000);
+ if (!rtl8192cu_firmware) {
RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
("Can't alloc buffer for fw.\n"));
return 1;
}
+
/* request fw */
err = request_firmware(&firmware, rtlpriv->cfg->fw_name,
rtlpriv->io.dev);
@@ -82,9 +97,14 @@ static int rtl92cu_init_sw_vars(struct i
release_firmware(firmware);
return 1;
}
- memcpy(rtlpriv->rtlhal.pfirmware, firmware->data, firmware->size);
+ pr_info("rtl8192cu: Loaded firmware from file %s\n",
+ rtlpriv->cfg->fw_name);
+ memcpy(rtl8192cu_firmware, firmware->data, firmware->size);
+ firmware_size = firmware->size;
rtlpriv->rtlhal.fwsize = firmware->size;
+ rtlpriv->rtlhal.pfirmware = rtl8192cu_firmware;
release_firmware(firmware);
+ atomic_inc(&usage_count);
return 0;
}
@@ -93,12 +113,30 @@ static void rtl92cu_deinit_sw_vars(struc
{
struct rtl_priv *rtlpriv = rtl_priv(hw);
- if (rtlpriv->rtlhal.pfirmware) {
- vfree(rtlpriv->rtlhal.pfirmware);
+ atomic_dec(&usage_count);
+ if (!atomic_read(&usage_count) && rtlpriv->rtlhal.pfirmware) {
+ vfree(rtl8192cu_firmware);
+ rtl8192cu_firmware = NULL;
rtlpriv->rtlhal.pfirmware = NULL;
}
}
+#ifdef CONFIG_PM_SLEEP
+static int rtl8192cu_usb_suspend(struct usb_interface *pusb_intf,
+ pm_message_t message)
+{
+ /* Increase usage_count to Save loaded fw across suspend/resume */
+ atomic_inc(&usage_count);
+ return 0;
+}
+
+static int rtl8192cu_usb_resume(struct usb_interface *pusb_intf)
+{
+ atomic_dec(&usage_count); /* after resume, decrease usage count */
+ return 0;
+}
+#endif
+
static struct rtl_hal_ops rtl8192cu_hal_ops = {
.init_sw_vars = rtl92cu_init_sw_vars,
.deinit_sw_vars = rtl92cu_deinit_sw_vars,
@@ -374,11 +412,10 @@ static struct usb_driver rtl8192cu_drive
.disconnect = rtl_usb_disconnect,
.id_table = rtl8192c_usb_ids,
-#ifdef CONFIG_PM
- /* .suspend = rtl_usb_suspend, */
- /* .resume = rtl_usb_resume, */
- /* .reset_resume = rtl8192c_resume, */
-#endif /* CONFIG_PM */
+#ifdef CONFIG_PM_SLEEP
+ .suspend = rtl8192cu_usb_suspend,
+ .resume = rtl8192cu_usb_resume,
+#endif /* CONFIG_PM_SLEEP */
#ifdef CONFIG_AUTOSUSPEND
.supports_autosuspend = 1,
#endif

116
scsi-fix-sd_revalidate_disk-oops.patch
View File

@ -1,116 +0,0 @@
--- linux-2.6.42.noarch/fs/partitions/check.c~ 2012-02-20 18:32:55.314253719 -0500
+++ linux-2.6.42.noarch/fs/partitions/check.c 2012-02-20 18:34:46.509859745 -0500
@@ -539,17 +539,11 @@ static bool disk_unlock_native_capacity(
}
}
-int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
+static int drop_partitions(struct gendisk *disk, struct block_device *bdev)
{
- struct parsed_partitions *state = NULL;
struct disk_part_iter piter;
struct hd_struct *part;
- int p, highest, res;
-rescan:
- if (state && !IS_ERR(state)) {
- kfree(state);
- state = NULL;
- }
+ int res;
if (bdev->bd_part_count)
return -EBUSY;
@@ -562,6 +556,24 @@ rescan:
delete_partition(disk, part->partno);
disk_part_iter_exit(&piter);
+ return 0;
+}
+
+int rescan_partitions(struct gendisk *disk, struct block_device *bdev)
+{
+ struct parsed_partitions *state = NULL;
+ struct hd_struct *part;
+ int p, highest, res;
+rescan:
+ if (state && !IS_ERR(state)) {
+ kfree(state);
+ state = NULL;
+ }
+
+ res = drop_partitions(disk, bdev);
+ if (res)
+ return res;
+
if (disk->fops->revalidate_disk)
disk->fops->revalidate_disk(disk);
check_disk_size_change(disk, bdev);
@@ -665,6 +677,26 @@ rescan:
return 0;
}
+int invalidate_partitions(struct gendisk *disk, struct block_device *bdev)
+{
+ int res;
+
+ if (!bdev->bd_invalidated)
+ return 0;
+
+ res = drop_partitions(disk, bdev);
+ if (res)
+ return res;
+
+ set_capacity(disk, 0);
+ check_disk_size_change(disk, bdev);
+ bdev->bd_invalidated = 0;
+ /* tell userspace that the media / partition table may have changed */
+ kobject_uevent(&disk_to_dev(disk)->kobj, KOBJ_CHANGE);
+
+ return 0;
+}
+
unsigned char *read_dev_sector(struct block_device *bdev, sector_t n, Sector *p)
{
struct address_space *mapping = bdev->bd_inode->i_mapping;
--- linux-2.6.42.noarch/include/linux/genhd.h~ 2012-02-20 18:35:02.777802107 -0500
+++ linux-2.6.42.noarch/include/linux/genhd.h 2012-02-20 18:35:13.873762792 -0500
@@ -596,6 +596,7 @@ extern char *disk_name (struct gendisk *
extern int disk_expand_part_tbl(struct gendisk *disk, int target);
extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
+extern int invalidate_partitions(struct gendisk *disk, struct block_device *bdev);
extern struct hd_struct * __must_check add_partition(struct gendisk *disk,
int partno, sector_t start,
sector_t len, int flags,
--- linux-2.6.42.noarch/fs/block_dev.c~ 2012-02-20 18:35:24.890723757 -0500
+++ linux-2.6.42.noarch/fs/block_dev.c 2012-02-20 18:36:25.166510197 -0500
@@ -1159,8 +1159,12 @@ static int __blkdev_get(struct block_dev
* The latter is necessary to prevent ghost
* partitions on a removed medium.
*/
- if (bdev->bd_invalidated && (!ret || ret == -ENOMEDIUM))
- rescan_partitions(disk, bdev);
+ if (bdev->bd_invalidated) {
+ if (!ret)
+ rescan_partitions(disk, bdev);
+ else if (ret == -ENOMEDIUM)
+ invalidate_partitions(disk, bdev);
+ }
if (ret)
goto out_clear;
} else {
@@ -1190,8 +1194,12 @@ static int __blkdev_get(struct block_dev
if (bdev->bd_disk->fops->open)
ret = bdev->bd_disk->fops->open(bdev, mode);
/* the same as first opener case, read comment there */
- if (bdev->bd_invalidated && (!ret || ret == -ENOMEDIUM))
- rescan_partitions(bdev->bd_disk, bdev);
+ if (bdev->bd_invalidated) {
+ if (!ret)
+ rescan_partitions(bdev->bd_disk, bdev);
+ else if (ret == -ENOMEDIUM)
+ invalidate_partitions(bdev->bd_disk, bdev);
+ }
if (ret)
goto out_unlock_bdev;
}

3
sources
View File

@ -1,2 +1 @@
364066fa18767ec0ae5f4e4abcf9dc51 linux-3.2.tar.xz
7481fa09f2efda915ed19a9da33a2e59 patch-3.2.10.xz
7133f5a2086a7d7ef97abac610c094f5 linux-3.3.tar.xz

239
sysfs-msi-irq-per-device.patch
View File

@ -1,239 +0,0 @@
From: Neil Horman <nhorman@tuxdriver.com>
Date: Thu, 6 Oct 2011 18:08:18 +0000 (-0400)
Subject: PCI/sysfs: add per pci device msi[x] irq listing (v5)
X-Git-Url: http://git.kernel.org/?p=linux%2Fkernel%2Fgit%2Fjbarnes%2Fpci.git;a=commitdiff_plain;h=933aa5c1f69aa650f59ba783307fc7ed7cc5fafa
PCI/sysfs: add per pci device msi[x] irq listing (v5)
This patch adds a per-pci-device subdirectory in sysfs called:
/sys/bus/pci/devices/<device>/msi_irqs
This sub-directory exports the set of msi vectors allocated by a given
pci device, by creating a numbered sub-directory for each vector beneath
msi_irqs. For each vector various attributes can be exported.
Currently the only attribute is called mode, which tracks the
operational mode of that vector (msi vs. msix)
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
---
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index 349ecf2..34f5110 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -66,6 +66,24 @@ Description:
re-discover previously removed devices.
Depends on CONFIG_HOTPLUG.
+What: /sys/bus/pci/devices/.../msi_irqs/
+Date: September, 2011
+Contact: Neil Horman <nhorman@tuxdriver.com>
+Description:
+ The /sys/devices/.../msi_irqs directory contains a variable set
+ of sub-directories, with each sub-directory being named after a
+ corresponding msi irq vector allocated to that device. Each
+ numbered sub-directory N contains attributes of that irq.
+ Note that this directory is not created for device drivers which
+ do not support msi irqs
+
+What: /sys/bus/pci/devices/.../msi_irqs/<N>/mode
+Date: September 2011
+Contact: Neil Horman <nhorman@tuxdriver.com>
+Description:
+ This attribute indicates the mode that the irq vector named by
+ the parent directory is in (msi vs. msix)
+
What: /sys/bus/pci/devices/.../remove
Date: January 2009
Contact: Linux PCI developers <linux-pci@vger.kernel.org>
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 2f10328..73613e2 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -322,6 +322,8 @@ static void free_msi_irqs(struct pci_dev *dev)
if (list_is_last(&entry->list, &dev->msi_list))
iounmap(entry->mask_base);
}
+ kobject_del(&entry->kobj);
+ kobject_put(&entry->kobj);
list_del(&entry->list);
kfree(entry);
}
@@ -402,6 +404,98 @@ void pci_restore_msi_state(struct pci_dev *dev)
}
EXPORT_SYMBOL_GPL(pci_restore_msi_state);
+
+#define to_msi_attr(obj) container_of(obj, struct msi_attribute, attr)
+#define to_msi_desc(obj) container_of(obj, struct msi_desc, kobj)
+
+struct msi_attribute {
+ struct attribute attr;
+ ssize_t (*show)(struct msi_desc *entry, struct msi_attribute *attr,
+ char *buf);
+ ssize_t (*store)(struct msi_desc *entry, struct msi_attribute *attr,
+ const char *buf, size_t count);
+};
+
+static ssize_t show_msi_mode(struct msi_desc *entry, struct msi_attribute *atr,
+ char *buf)
+{
+ return sprintf(buf, "%s\n", entry->msi_attrib.is_msix ? "msix" : "msi");
+}
+
+static ssize_t msi_irq_attr_show(struct kobject *kobj,
+ struct attribute *attr, char *buf)
+{
+ struct msi_attribute *attribute = to_msi_attr(attr);
+ struct msi_desc *entry = to_msi_desc(kobj);
+
+ if (!attribute->show)
+ return -EIO;
+
+ return attribute->show(entry, attribute, buf);
+}
+
+static const struct sysfs_ops msi_irq_sysfs_ops = {
+ .show = msi_irq_attr_show,
+};
+
+static struct msi_attribute mode_attribute =
+ __ATTR(mode, S_IRUGO, show_msi_mode, NULL);
+
+
+struct attribute *msi_irq_default_attrs[] = {
+ &mode_attribute.attr,
+ NULL
+};
+
+void msi_kobj_release(struct kobject *kobj)
+{
+ struct msi_desc *entry = to_msi_desc(kobj);
+
+ pci_dev_put(entry->dev);
+}
+
+static struct kobj_type msi_irq_ktype = {
+ .release = msi_kobj_release,
+ .sysfs_ops = &msi_irq_sysfs_ops,
+ .default_attrs = msi_irq_default_attrs,
+};
+
+static int populate_msi_sysfs(struct pci_dev *pdev)
+{
+ struct msi_desc *entry;
+ struct kobject *kobj;
+ int ret;
+ int count = 0;
+
+ pdev->msi_kset = kset_create_and_add("msi_irqs", NULL, &pdev->dev.kobj);
+ if (!pdev->msi_kset)
+ return -ENOMEM;
+
+ list_for_each_entry(entry, &pdev->msi_list, list) {
+ kobj = &entry->kobj;
+ kobj->kset = pdev->msi_kset;
+ pci_dev_get(pdev);
+ ret = kobject_init_and_add(kobj, &msi_irq_ktype, NULL,
+ "%u", entry->irq);
+ if (ret)
+ goto out_unroll;
+
+ count++;
+ }
+
+ return 0;
+
+out_unroll:
+ list_for_each_entry(entry, &pdev->msi_list, list) {
+ if (!count)
+ break;
+ kobject_del(&entry->kobj);
+ kobject_put(&entry->kobj);
+ count--;
+ }
+ return ret;
+}
+
/**
* msi_capability_init - configure device's MSI capability structure
* @dev: pointer to the pci_dev data structure of MSI device function
@@ -453,6 +547,13 @@ static int msi_capability_init(struct pci_dev *dev, int nvec)
return ret;
}
+ ret = populate_msi_sysfs(dev);
+ if (ret) {
+ msi_mask_irq(entry, mask, ~mask);
+ free_msi_irqs(dev);
+ return ret;
+ }
+
/* Set MSI enabled bits */
pci_intx_for_msi(dev, 0);
msi_set_enable(dev, pos, 1);
@@ -573,6 +674,12 @@ static int msix_capability_init(struct pci_dev *dev,
msix_program_entries(dev, entries);
+ ret = populate_msi_sysfs(dev);
+ if (ret) {
+ ret = 0;
+ goto error;
+ }
+
/* Set MSI-X enabled bits and unmask the function */
pci_intx_for_msi(dev, 0);
dev->msix_enabled = 1;
@@ -731,6 +838,8 @@ void pci_disable_msi(struct pci_dev *dev)
pci_msi_shutdown(dev);
free_msi_irqs(dev);
+ kset_unregister(dev->msi_kset);
+ dev->msi_kset = NULL;
}
EXPORT_SYMBOL(pci_disable_msi);
@@ -829,6 +938,8 @@ void pci_disable_msix(struct pci_dev *dev)
pci_msix_shutdown(dev);
free_msi_irqs(dev);
+ kset_unregister(dev->msi_kset);
+ dev->msi_kset = NULL;
}
EXPORT_SYMBOL(pci_disable_msix);
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 05acced..ce93a34 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -1,6 +1,7 @@
#ifndef LINUX_MSI_H
#define LINUX_MSI_H
+#include <linux/kobject.h>
#include <linux/list.h>
struct msi_msg {
@@ -44,6 +45,8 @@ struct msi_desc {
/* Last set MSI message */
struct msi_msg msg;
+
+ struct kobject kobj;
};
/*
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 7cda65b..84225c7 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -336,6 +336,7 @@ struct pci_dev {
struct bin_attribute *res_attr_wc[DEVICE_COUNT_RESOURCE]; /* sysfs file for WC mapping of resources */
#ifdef CONFIG_PCI_MSI
struct list_head msi_list;
+ struct kset *msi_kset;
#endif
struct pci_vpd *vpd;
#ifdef CONFIG_PCI_ATS

4300
utrace.patch
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