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perf/core fixes and improvements.

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Merge tag 'perf-core-for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core

perf/core fixes and improvements.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2012-02-07 10:00:06 +01:00
commit 52fce956a7
94 changed files with 585 additions and 494 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
Documentation/DocBook/device-drivers.tmpl
View File

@ -102,9 +102,12 @@ X!Iinclude/linux/kobject.h
!Iinclude/linux/device.h
</sect1>
<sect1><title>Device Drivers Base</title>
!Idrivers/base/init.c
!Edrivers/base/driver.c
!Edrivers/base/core.c
!Edrivers/base/syscore.c
!Edrivers/base/class.c
!Idrivers/base/node.c
!Edrivers/base/firmware_class.c
!Edrivers/base/transport_class.c
<!-- Cannot be included, because
@ -113,13 +116,18 @@ X!Iinclude/linux/kobject.h
exceed allowed 44 characters maximum
X!Edrivers/base/attribute_container.c
-->
!Edrivers/base/sys.c
!Edrivers/base/dd.c
<!--
X!Edrivers/base/interface.c
-->
!Iinclude/linux/platform_device.h
!Edrivers/base/platform.c
!Edrivers/base/bus.c
</sect1>
<sect1><title>Device Drivers DMA Management</title>
!Edrivers/base/dma-buf.c
!Edrivers/base/dma-coherent.c
!Edrivers/base/dma-mapping.c
</sect1>
<sect1><title>Device Drivers Power Management</title>
!Edrivers/base/power/main.c
@ -219,7 +227,7 @@ X!Isound/sound_firmware.c
<chapter id="uart16x50">
<title>16x50 UART Driver</title>
!Edrivers/tty/serial/serial_core.c
!Edrivers/tty/serial/8250.c
!Edrivers/tty/serial/8250/8250.c
</chapter>
<chapter id="fbdev">

29
MAINTAINERS
View File

@ -159,7 +159,7 @@ S: Maintained
F: drivers/net/ethernet/realtek/r8169.c
8250/16?50 (AND CLONE UARTS) SERIAL DRIVER
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: linux-serial@vger.kernel.org
W: http://serial.sourceforge.net
S: Maintained
@ -1783,9 +1783,9 @@ X: net/wireless/wext*
CHAR and MISC DRIVERS
M: Arnd Bergmann <arnd@arndb.de>
M: Greg Kroah-Hartman <greg@kroah.com>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git
S: Maintained
S: Supported
F: drivers/char/*
F: drivers/misc/*
@ -2320,7 +2320,7 @@ F: lib/lru_cache.c
F: Documentation/blockdev/drbd/
DRIVER CORE, KOBJECTS, DEBUGFS AND SYSFS
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6.git
S: Supported
F: Documentation/kobject.txt
@ -6276,15 +6276,15 @@ S: Maintained
F: arch/alpha/kernel/srm_env.c
STABLE BRANCH
M: Greg Kroah-Hartman <greg@kroah.com>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: stable@vger.kernel.org
S: Maintained
S: Supported
STAGING SUBSYSTEM
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
L: devel@driverdev.osuosl.org
S: Maintained
S: Supported
F: drivers/staging/
STAGING - AGERE HERMES II and II.5 WIRELESS DRIVERS
@ -6669,8 +6669,8 @@ S: Maintained
K: ^Subject:.*(?i)trivial
TTY LAYER
M: Greg Kroah-Hartman <gregkh@suse.de>
S: Maintained
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
S: Supported
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6.git
F: drivers/tty/
F: drivers/tty/serial/serial_core.c
@ -6958,7 +6958,7 @@ S: Maintained
F: drivers/usb/serial/digi_acceleport.c
USB SERIAL DRIVER
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: linux-usb@vger.kernel.org
S: Supported
F: Documentation/usb/usb-serial.txt
@ -6973,9 +6973,8 @@ S: Maintained
F: drivers/usb/serial/empeg.c
USB SERIAL KEYSPAN DRIVER
M: Greg Kroah-Hartman <greg@kroah.com>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: linux-usb@vger.kernel.org
W: http://www.kroah.com/linux/
S: Maintained
F: drivers/usb/serial/*keyspan*
@ -7003,7 +7002,7 @@ F: Documentation/video4linux/sn9c102.txt
F: drivers/media/video/sn9c102/
USB SUBSYSTEM
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
L: linux-usb@vger.kernel.org
W: http://www.linux-usb.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6.git
@ -7090,7 +7089,7 @@ F: fs/hppfs/
USERSPACE I/O (UIO)
M: "Hans J. Koch" <hjk@hansjkoch.de>
M: Greg Kroah-Hartman <gregkh@suse.de>
M: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
S: Maintained
F: Documentation/DocBook/uio-howto.tmpl
F: drivers/uio/

21
arch/microblaze/kernel/setup.c
View File

@ -26,7 +26,6 @@
#include <linux/cache.h>
#include <linux/of_platform.h>
#include <linux/dma-mapping.h>
#include <linux/cpu.h>
#include <asm/cacheflush.h>
#include <asm/entry.h>
#include <asm/cpuinfo.h>
@ -227,23 +226,5 @@ static int __init setup_bus_notifier(void)
return 0;
}
arch_initcall(setup_bus_notifier);
static DEFINE_PER_CPU(struct cpu, cpu_devices);
static int __init topology_init(void)
{
int i, ret;
for_each_present_cpu(i) {
struct cpu *c = &per_cpu(cpu_devices, i);
ret = register_cpu(c, i);
if (ret)
printk(KERN_WARNING "topology_init: register_cpu %d "
"failed (%d)\n", i, ret);
}
return 0;
}
subsys_initcall(topology_init);

1
arch/sparc/Kconfig
View File

@ -33,6 +33,7 @@ config SPARC
config SPARC32
def_bool !64BIT
select GENERIC_ATOMIC64
select CLZ_TAB
config SPARC64
def_bool 64BIT

16
arch/sparc/lib/divdi3.S
View File

@ -17,23 +17,9 @@ along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
.data
.align 8
.globl __clz_tab
__clz_tab:
.byte 0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5
.byte 6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6
.byte 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
.byte 7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7
.byte 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
.byte 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
.byte 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
.byte 8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
.size __clz_tab,256
.global .udiv
.text
.align 4
.global .udiv
.globl __divdi3
__divdi3:
save %sp,-104,%sp

6
arch/x86/include/asm/cmpxchg.h
View File

@ -145,13 +145,13 @@ extern void __add_wrong_size(void)
#ifdef __HAVE_ARCH_CMPXCHG
#define cmpxchg(ptr, old, new) \
__cmpxchg((ptr), (old), (new), sizeof(*ptr))
__cmpxchg(ptr, old, new, sizeof(*(ptr)))
#define sync_cmpxchg(ptr, old, new) \
__sync_cmpxchg((ptr), (old), (new), sizeof(*ptr))
__sync_cmpxchg(ptr, old, new, sizeof(*(ptr)))
#define cmpxchg_local(ptr, old, new) \
__cmpxchg_local((ptr), (old), (new), sizeof(*ptr))
__cmpxchg_local(ptr, old, new, sizeof(*(ptr)))
#endif
/*

3
arch/x86/kernel/cpu/perf_event.c
View File

@ -988,9 +988,6 @@ static void x86_pmu_start(struct perf_event *event, int flags)
struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
int idx = event->hw.idx;
if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
return;
if (WARN_ON_ONCE(idx == -1))
return;

1
arch/x86/kernel/cpu/perf_event_intel_ds.c
View File

@ -439,7 +439,6 @@ void intel_pmu_pebs_enable(struct perf_event *event)
hwc->config &= ~ARCH_PERFMON_EVENTSEL_INT;
cpuc->pebs_enabled |= 1ULL << hwc->idx;
WARN_ON_ONCE(cpuc->enabled);
if (x86_pmu.intel_cap.pebs_trap && event->attr.precise_ip > 1)
intel_pmu_lbr_enable(event);

2
arch/x86/kernel/cpu/perf_event_intel_lbr.c
View File

@ -72,8 +72,6 @@ void intel_pmu_lbr_enable(struct perf_event *event)
if (!x86_pmu.lbr_nr)
return;
WARN_ON_ONCE(cpuc->enabled);
/*
* Reset the LBR stack if we changed task context to
* avoid data leaks.

3
arch/x86/kernel/dumpstack.c
View File

@ -252,7 +252,8 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
unsigned short ss;
unsigned long sp;
#endif
printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
printk(KERN_DEFAULT
"%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
#ifdef CONFIG_PREEMPT
printk("PREEMPT ");
#endif

6
arch/x86/kernel/dumpstack_64.c
View File

@ -269,11 +269,11 @@ void show_registers(struct pt_regs *regs)
unsigned char c;
u8 *ip;
printk(KERN_EMERG "Stack:\n");
printk(KERN_DEFAULT "Stack:\n");
show_stack_log_lvl(NULL, regs, (unsigned long *)sp,
0, KERN_EMERG);
0, KERN_DEFAULT);
printk(KERN_EMERG "Code: ");
printk(KERN_DEFAULT "Code: ");
ip = (u8 *)regs->ip - code_prologue;
if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) {

36
arch/x86/kernel/reboot.c
View File

@ -39,6 +39,14 @@ static int reboot_mode;
enum reboot_type reboot_type = BOOT_ACPI;
int reboot_force;
/* This variable is used privately to keep track of whether or not
* reboot_type is still set to its default value (i.e., reboot= hasn't
* been set on the command line). This is needed so that we can
* suppress DMI scanning for reboot quirks. Without it, it's
* impossible to override a faulty reboot quirk without recompiling.
*/
static int reboot_default = 1;
#if defined(CONFIG_X86_32) && defined(CONFIG_SMP)
static int reboot_cpu = -1;
#endif
@ -67,6 +75,12 @@ bool port_cf9_safe = false;
static int __init reboot_setup(char *str)
{
for (;;) {
/* Having anything passed on the command line via
* reboot= will cause us to disable DMI checking
* below.
*/
reboot_default = 0;
switch (*str) {
case 'w':
reboot_mode = 0x1234;
@ -295,14 +309,6 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
},
},
{ /* Handle problems with rebooting on VersaLogic Menlow boards */
.callback = set_bios_reboot,
.ident = "VersaLogic Menlow based board",
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "VersaLogic Corporation"),
DMI_MATCH(DMI_BOARD_NAME, "VersaLogic Menlow board"),
},
},
{ /* Handle reboot issue on Acer Aspire one */
.callback = set_kbd_reboot,
.ident = "Acer Aspire One A110",
@ -316,7 +322,12 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
static int __init reboot_init(void)
{
dmi_check_system(reboot_dmi_table);
/* Only do the DMI check if reboot_type hasn't been overridden
* on the command line
*/
if (reboot_default) {
dmi_check_system(reboot_dmi_table);
}
return 0;
}
core_initcall(reboot_init);
@ -465,7 +476,12 @@ static struct dmi_system_id __initdata pci_reboot_dmi_table[] = {
static int __init pci_reboot_init(void)
{
dmi_check_system(pci_reboot_dmi_table);
/* Only do the DMI check if reboot_type hasn't been overridden
* on the command line
*/
if (reboot_default) {
dmi_check_system(pci_reboot_dmi_table);
}
return 0;
}
core_initcall(pci_reboot_init);

4
arch/x86/mm/fault.c
View File

@ -673,7 +673,7 @@ no_context(struct pt_regs *regs, unsigned long error_code,
stackend = end_of_stack(tsk);
if (tsk != &init_task && *stackend != STACK_END_MAGIC)
printk(KERN_ALERT "Thread overran stack, or stack corrupted\n");
printk(KERN_EMERG "Thread overran stack, or stack corrupted\n");
tsk->thread.cr2 = address;
tsk->thread.trap_no = 14;
@ -684,7 +684,7 @@ no_context(struct pt_regs *regs, unsigned long error_code,
sig = 0;
/* Executive summary in case the body of the oops scrolled away */
printk(KERN_EMERG "CR2: %016lx\n", address);
printk(KERN_DEFAULT "CR2: %016lx\n", address);
oops_end(flags, regs, sig);
}

7
drivers/block/rbd.c
View File

@ -380,6 +380,7 @@ static int rbd_get_client(struct rbd_device *rbd_dev, const char *mon_addr,
rbdc = __rbd_client_find(opt);
if (rbdc) {
ceph_destroy_options(opt);
kfree(rbd_opts);
/* using an existing client */
kref_get(&rbdc->kref);
@ -406,15 +407,15 @@ static int rbd_get_client(struct rbd_device *rbd_dev, const char *mon_addr,
/*
* Destroy ceph client
*
* Caller must hold node_lock.
*/
static void rbd_client_release(struct kref *kref)
{
struct rbd_client *rbdc = container_of(kref, struct rbd_client, kref);
dout("rbd_release_client %p\n", rbdc);
spin_lock(&node_lock);
list_del(&rbdc->node);
spin_unlock(&node_lock);
ceph_destroy_client(rbdc->client);
kfree(rbdc->rbd_opts);
@ -427,7 +428,9 @@ static void rbd_client_release(struct kref *kref)
*/
static void rbd_put_client(struct rbd_device *rbd_dev)
{
spin_lock(&node_lock);
kref_put(&rbd_dev->rbd_client->kref, rbd_client_release);
spin_unlock(&node_lock);
rbd_dev->rbd_client = NULL;
rbd_dev->client = NULL;
}

6
drivers/firewire/ohci.c
View File

@ -263,6 +263,7 @@ static inline struct fw_ohci *fw_ohci(struct fw_card *card)
static char ohci_driver_name[] = KBUILD_MODNAME;
#define PCI_DEVICE_ID_AGERE_FW643 0x5901
#define PCI_DEVICE_ID_CREATIVE_SB1394 0x4001
#define PCI_DEVICE_ID_JMICRON_JMB38X_FW 0x2380
#define PCI_DEVICE_ID_TI_TSB12LV22 0x8009
#define PCI_DEVICE_ID_TI_TSB12LV26 0x8020
@ -289,6 +290,9 @@ static const struct {
{PCI_VENDOR_ID_ATT, PCI_DEVICE_ID_AGERE_FW643, 6,
QUIRK_NO_MSI},
{PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_SB1394, PCI_ANY_ID,
QUIRK_RESET_PACKET},
{PCI_VENDOR_ID_JMICRON, PCI_DEVICE_ID_JMICRON_JMB38X_FW, PCI_ANY_ID,
QUIRK_NO_MSI},
@ -299,7 +303,7 @@ static const struct {
QUIRK_NO_MSI},
{PCI_VENDOR_ID_RICOH, PCI_ANY_ID, PCI_ANY_ID,
QUIRK_CYCLE_TIMER},
QUIRK_CYCLE_TIMER | QUIRK_NO_MSI},
{PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_TSB12LV22, PCI_ANY_ID,
QUIRK_CYCLE_TIMER | QUIRK_RESET_PACKET | QUIRK_NO_1394A},

5
drivers/gpu/drm/nouveau/nouveau_bios.h
View File

@ -54,9 +54,10 @@ struct bit_entry {
int bit_table(struct drm_device *, u8 id, struct bit_entry *);
enum dcb_gpio_tag {
DCB_GPIO_TVDAC0 = 0xc,
DCB_GPIO_PANEL_POWER = 0x01,
DCB_GPIO_TVDAC0 = 0x0c,
DCB_GPIO_TVDAC1 = 0x2d,
DCB_GPIO_PWM_FAN = 0x9,
DCB_GPIO_PWM_FAN = 0x09,
DCB_GPIO_FAN_SENSE = 0x3d,
DCB_GPIO_UNUSED = 0xff
};

10
drivers/gpu/drm/nouveau/nouveau_display.c
View File

@ -219,6 +219,16 @@ nouveau_display_init(struct drm_device *dev)
if (ret)
return ret;
/* power on internal panel if it's not already. the init tables of
* some vbios default this to off for some reason, causing the
* panel to not work after resume
*/
if (nouveau_gpio_func_get(dev, DCB_GPIO_PANEL_POWER) == 0) {
nouveau_gpio_func_set(dev, DCB_GPIO_PANEL_POWER, true);
msleep(300);
}
/* enable polling for external displays */
drm_kms_helper_poll_enable(dev);
/* enable hotplug interrupts */

2
drivers/gpu/drm/nouveau/nouveau_drv.c
View File

@ -124,7 +124,7 @@ MODULE_PARM_DESC(ctxfw, "Use external HUB/GPC ucode (fermi)\n");
int nouveau_ctxfw;
module_param_named(ctxfw, nouveau_ctxfw, int, 0400);
MODULE_PARM_DESC(ctxfw, "Santise DCB table according to MXM-SIS\n");
MODULE_PARM_DESC(mxmdcb, "Santise DCB table according to MXM-SIS\n");
int nouveau_mxmdcb = 1;
module_param_named(mxmdcb, nouveau_mxmdcb, int, 0400);

23
drivers/gpu/drm/nouveau/nouveau_gem.c
View File

@ -379,6 +379,25 @@ validate_init(struct nouveau_channel *chan, struct drm_file *file_priv,
return 0;
}
static int
validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
{
struct nouveau_fence *fence = NULL;
int ret = 0;
spin_lock(&nvbo->bo.bdev->fence_lock);
if (nvbo->bo.sync_obj)
fence = nouveau_fence_ref(nvbo->bo.sync_obj);
spin_unlock(&nvbo->bo.bdev->fence_lock);
if (fence) {
ret = nouveau_fence_sync(fence, chan);
nouveau_fence_unref(&fence);
}
return ret;
}
static int
validate_list(struct nouveau_channel *chan, struct list_head *list,
struct drm_nouveau_gem_pushbuf_bo *pbbo, uint64_t user_pbbo_ptr)
@ -393,7 +412,7 @@ validate_list(struct nouveau_channel *chan, struct list_head *list,
list_for_each_entry(nvbo, list, entry) {
struct drm_nouveau_gem_pushbuf_bo *b = &pbbo[nvbo->pbbo_index];
ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
ret = validate_sync(chan, nvbo);
if (unlikely(ret)) {
NV_ERROR(dev, "fail pre-validate sync\n");
return ret;
@ -416,7 +435,7 @@ validate_list(struct nouveau_channel *chan, struct list_head *list,
return ret;
}
ret = nouveau_fence_sync(nvbo->bo.sync_obj, chan);
ret = validate_sync(chan, nvbo);
if (unlikely(ret)) {
NV_ERROR(dev, "fail post-validate sync\n");
return ret;

9
drivers/gpu/drm/nouveau/nouveau_mxm.c
View File

@ -656,7 +656,16 @@ nouveau_mxm_init(struct drm_device *dev)
if (mxm_shadow(dev, mxm[0])) {
MXM_MSG(dev, "failed to locate valid SIS\n");
#if 0
/* we should, perhaps, fall back to some kind of limited
* mode here if the x86 vbios hasn't already done the
* work for us (so we prevent loading with completely
* whacked vbios tables).
*/
return -EINVAL;
#else
return 0;
#endif
}
MXM_MSG(dev, "MXMS Version %d.%d\n",

4
drivers/gpu/drm/nouveau/nv50_pm.c
View File

@ -495,9 +495,9 @@ nv50_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_pm_state *info;
struct pll_lims pll;
int ret = -EINVAL;
int clk, ret = -EINVAL;
int N, M, P1, P2;
u32 clk, out;
u32 out;
if (dev_priv->chipset == 0xaa ||
dev_priv->chipset == 0xac)

4
drivers/gpu/drm/radeon/atombios_crtc.c
View File

@ -1184,7 +1184,7 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
WREG32(EVERGREEN_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
crtc->mode.vdisplay);
target_fb->height);
x &= ~3;
y &= ~1;
WREG32(EVERGREEN_VIEWPORT_START + radeon_crtc->crtc_offset,
@ -1353,7 +1353,7 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
WREG32(AVIVO_D1MODE_DESKTOP_HEIGHT + radeon_crtc->crtc_offset,
crtc->mode.vdisplay);
target_fb->height);
x &= ~3;
y &= ~1;
WREG32(AVIVO_D1MODE_VIEWPORT_START + radeon_crtc->crtc_offset,

18
drivers/gpu/drm/radeon/atombios_dp.c
View File

@ -564,9 +564,21 @@ int radeon_dp_get_panel_mode(struct drm_encoder *encoder,
ENCODER_OBJECT_ID_NUTMEG)
panel_mode = DP_PANEL_MODE_INTERNAL_DP1_MODE;
else if (radeon_connector_encoder_get_dp_bridge_encoder_id(connector) ==
ENCODER_OBJECT_ID_TRAVIS)
panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;
else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
ENCODER_OBJECT_ID_TRAVIS) {
u8 id[6];
int i;
for (i = 0; i < 6; i++)
id[i] = radeon_read_dpcd_reg(radeon_connector, 0x503 + i);
if (id[0] == 0x73 &&
id[1] == 0x69 &&
id[2] == 0x76 &&
id[3] == 0x61 &&
id[4] == 0x72 &&
id[5] == 0x54)
panel_mode = DP_PANEL_MODE_INTERNAL_DP1_MODE;
else
panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;
} else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) {
u8 tmp = radeon_read_dpcd_reg(radeon_connector, DP_EDP_CONFIGURATION_CAP);
if (tmp & 1)
panel_mode = DP_PANEL_MODE_INTERNAL_DP2_MODE;

35
drivers/gpu/drm/radeon/r600_blit_kms.c
View File

@ -468,27 +468,42 @@ set_default_state(struct radeon_device *rdev)
radeon_ring_write(ring, sq_stack_resource_mgmt_2);
}
#define I2F_MAX_BITS 15
#define I2F_MAX_INPUT ((1 << I2F_MAX_BITS) - 1)
#define I2F_SHIFT (24 - I2F_MAX_BITS)
/*
* Converts unsigned integer into 32-bit IEEE floating point representation.
* Conversion is not universal and only works for the range from 0
* to 2^I2F_MAX_BITS-1. Currently we only use it with inputs between
* 0 and 16384 (inclusive), so I2F_MAX_BITS=15 is enough. If necessary,
* I2F_MAX_BITS can be increased, but that will add to the loop iterations
* and slow us down. Conversion is done by shifting the input and counting
* down until the first 1 reaches bit position 23. The resulting counter
* and the shifted input are, respectively, the exponent and the fraction.
* The sign is always zero.
*/
static uint32_t i2f(uint32_t input)
{
u32 result, i, exponent, fraction;
if ((input & 0x3fff) == 0)
result = 0; /* 0 is a special case */
WARN_ON_ONCE(input > I2F_MAX_INPUT);
if ((input & I2F_MAX_INPUT) == 0)
result = 0;
else {
exponent = 140; /* exponent biased by 127; */
fraction = (input & 0x3fff) << 10; /* cheat and only
handle numbers below 2^^15 */
for (i = 0; i < 14; i++) {
exponent = 126 + I2F_MAX_BITS;
fraction = (input & I2F_MAX_INPUT) << I2F_SHIFT;
for (i = 0; i < I2F_MAX_BITS; i++) {
if (fraction & 0x800000)
break;
else {
fraction = fraction << 1; /* keep
shifting left until top bit = 1 */
fraction = fraction << 1;
exponent = exponent - 1;
}
}
result = exponent << 23 | (fraction & 0x7fffff); /* mask
off top bit; assumed 1 */
result = exponent << 23 | (fraction & 0x7fffff);
}
return result;
}

3
drivers/gpu/drm/radeon/radeon_atpx_handler.c
View File

@ -59,8 +59,9 @@ static int radeon_atrm_call(acpi_handle atrm_handle, uint8_t *bios,
obj = (union acpi_object *)buffer.pointer;
memcpy(bios+offset, obj->buffer.pointer, obj->buffer.length);
len = obj->buffer.length;
kfree(buffer.pointer);
return obj->buffer.length;
return len;
}
bool radeon_atrm_supported(struct pci_dev *pdev)

4
drivers/gpu/drm/radeon/radeon_device.c
View File

@ -883,6 +883,8 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
return 0;
drm_kms_helper_poll_disable(dev);
/* turn off display hw */
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
@ -972,6 +974,8 @@ int radeon_resume_kms(struct drm_device *dev)
list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
drm_helper_connector_dpms(connector, DRM_MODE_DPMS_ON);
}
drm_kms_helper_poll_enable(dev);
return 0;
}

1
drivers/gpu/drm/radeon/radeon_i2c.c
View File

@ -958,6 +958,7 @@ struct radeon_i2c_chan *radeon_i2c_create_dp(struct drm_device *dev,
i2c->rec = *rec;
i2c->adapter.owner = THIS_MODULE;
i2c->adapter.class = I2C_CLASS_DDC;
i2c->adapter.dev.parent = &dev->pdev->dev;
i2c->dev = dev;
snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
"Radeon aux bus %s", name);

5
drivers/infiniband/core/ucma.c
View File

@ -808,9 +808,12 @@ static ssize_t ucma_accept(struct ucma_file *file, const char __user *inbuf,
return PTR_ERR(ctx);
if (cmd.conn_param.valid) {
ctx->uid = cmd.uid;
ucma_copy_conn_param(&conn_param, &cmd.conn_param);
mutex_lock(&file->mut);
ret = rdma_accept(ctx->cm_id, &conn_param);
if (!ret)
ctx->uid = cmd.uid;
mutex_unlock(&file->mut);
} else
ret = rdma_accept(ctx->cm_id, NULL);

1
drivers/infiniband/core/uverbs_cmd.c
View File

@ -1485,6 +1485,7 @@ ssize_t ib_uverbs_create_qp(struct ib_uverbs_file *file,
qp->event_handler = attr.event_handler;
qp->qp_context = attr.qp_context;
qp->qp_type = attr.qp_type;
atomic_set(&qp->usecnt, 0);
atomic_inc(&pd->usecnt);
atomic_inc(&attr.send_cq->usecnt);
if (attr.recv_cq)

2
drivers/infiniband/core/verbs.c
View File

@ -421,6 +421,7 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
qp->uobject = NULL;
qp->qp_type = qp_init_attr->qp_type;
atomic_set(&qp->usecnt, 0);
if (qp_init_attr->qp_type == IB_QPT_XRC_TGT) {
qp->event_handler = __ib_shared_qp_event_handler;
qp->qp_context = qp;
@ -430,7 +431,6 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
qp->xrcd = qp_init_attr->xrcd;
atomic_inc(&qp_init_attr->xrcd->usecnt);
INIT_LIST_HEAD(&qp->open_list);
atomic_set(&qp->usecnt, 0);
real_qp = qp;
qp = __ib_open_qp(real_qp, qp_init_attr->event_handler,

2
drivers/infiniband/hw/ipath/ipath_fs.c
View File

@ -89,7 +89,7 @@ static int create_file(const char *name, umode_t mode,
error = ipathfs_mknod(parent->d_inode, *dentry,
mode, fops, data);
else
error = PTR_ERR(dentry);
error = PTR_ERR(*dentry);
mutex_unlock(&parent->d_inode->i_mutex);
return error;

7
drivers/infiniband/hw/mlx4/mad.c
View File

@ -257,12 +257,9 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
return IB_MAD_RESULT_SUCCESS;
/*
* Don't process SMInfo queries or vendor-specific
* MADs -- the SMA can't handle them.
* Don't process SMInfo queries -- the SMA can't handle them.
*/
if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO ||
((in_mad->mad_hdr.attr_id & IB_SMP_ATTR_VENDOR_MASK) ==
IB_SMP_ATTR_VENDOR_MASK))
if (in_mad->mad_hdr.attr_id == IB_SMP_ATTR_SM_INFO)
return IB_MAD_RESULT_SUCCESS;
} else if (in_mad->mad_hdr.mgmt_class == IB_MGMT_CLASS_PERF_MGMT ||
in_mad->mad_hdr.mgmt_class == MLX4_IB_VENDOR_CLASS1 ||

2
drivers/infiniband/hw/nes/nes.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
* Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two

2
drivers/infiniband/hw/nes/nes.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
* Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two

10
drivers/infiniband/hw/nes/nes_cm.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@ -233,6 +233,7 @@ static int send_mpa_reject(struct nes_cm_node *cm_node)
u8 *start_ptr = &start_addr;
u8 **start_buff = &start_ptr;
u16 buff_len = 0;
struct ietf_mpa_v1 *mpa_frame;
skb = dev_alloc_skb(MAX_CM_BUFFER);
if (!skb) {
@ -242,6 +243,8 @@ static int send_mpa_reject(struct nes_cm_node *cm_node)
/* send an MPA reject frame */
cm_build_mpa_frame(cm_node, start_buff, &buff_len, NULL, MPA_KEY_REPLY);
mpa_frame = (struct ietf_mpa_v1 *)*start_buff;
mpa_frame->flags |= IETF_MPA_FLAGS_REJECT;
form_cm_frame(skb, cm_node, NULL, 0, *start_buff, buff_len, SET_ACK | SET_FIN);
cm_node->state = NES_CM_STATE_FIN_WAIT1;
@ -1360,8 +1363,7 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
if (!memcmp(nesadapter->arp_table[arpindex].mac_addr,
neigh->ha, ETH_ALEN)) {
/* Mac address same as in nes_arp_table */
ip_rt_put(rt);
return rc;
goto out;
}
nes_manage_arp_cache(nesvnic->netdev,
@ -1377,6 +1379,8 @@ static int nes_addr_resolve_neigh(struct nes_vnic *nesvnic, u32 dst_ip, int arpi
neigh_event_send(neigh, NULL);
}
}
out:
rcu_read_unlock();
ip_rt_put(rt);
return rc;

2
drivers/infiniband/hw/nes/nes_cm.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU

2
drivers/infiniband/hw/nes/nes_context.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU

2
drivers/infiniband/hw/nes/nes_hw.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU

2
drivers/infiniband/hw/nes/nes_hw.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU

2
drivers/infiniband/hw/nes/nes_mgt.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel-NE, Inc. All rights reserved.
* Copyright (c) 2006 - 2011 Intel-NE, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU

2
drivers/infiniband/hw/nes/nes_mgt.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2010 Intel-NE, Inc. All rights reserved.
* Copyright (c) 2006 - 2011 Intel-NE, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU

2
drivers/infiniband/hw/nes/nes_nic.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU

2
drivers/infiniband/hw/nes/nes_user.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
* Copyright (c) 2005 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Cisco Systems. All rights reserved.
* Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.

2
drivers/infiniband/hw/nes/nes_utils.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU

6
drivers/infiniband/hw/nes/nes_verbs.c
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
@ -3427,6 +3427,8 @@ static int nes_post_send(struct ib_qp *ibqp, struct ib_send_wr *ib_wr,
set_wqe_32bit_value(wqe->wqe_words,
NES_IWARP_SQ_FMR_WQE_LENGTH_LOW_IDX,
ib_wr->wr.fast_reg.length);
set_wqe_32bit_value(wqe->wqe_words,
NES_IWARP_SQ_FMR_WQE_LENGTH_HIGH_IDX, 0);
set_wqe_32bit_value(wqe->wqe_words,
NES_IWARP_SQ_FMR_WQE_MR_STAG_IDX,
ib_wr->wr.fast_reg.rkey);
@ -3724,7 +3726,7 @@ static int nes_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry)
entry->opcode = IB_WC_SEND;
break;
case NES_IWARP_SQ_OP_LOCINV:
entry->opcode = IB_WR_LOCAL_INV;
entry->opcode = IB_WC_LOCAL_INV;
break;
case NES_IWARP_SQ_OP_FAST_REG:
entry->opcode = IB_WC_FAST_REG_MR;

2
drivers/infiniband/hw/nes/nes_verbs.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2006 - 2009 Intel Corporation. All rights reserved.
* Copyright (c) 2006 - 2011 Intel Corporation. All rights reserved.
* Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
*
* This software is available to you under a choice of one of two

2
drivers/infiniband/hw/qib/qib_iba6120.c
View File

@ -2105,7 +2105,7 @@ static void alloc_dummy_hdrq(struct qib_devdata *dd)
dd->cspec->dummy_hdrq = dma_alloc_coherent(&dd->pcidev->dev,
dd->rcd[0]->rcvhdrq_size,
&dd->cspec->dummy_hdrq_phys,
GFP_KERNEL | __GFP_COMP);
GFP_ATOMIC | __GFP_COMP);
if (!dd->cspec->dummy_hdrq) {
qib_devinfo(dd->pcidev, "Couldn't allocate dummy hdrq\n");
/* fallback to just 0'ing */

2
drivers/infiniband/hw/qib/qib_pcie.c
View File

@ -560,7 +560,7 @@ static int qib_tune_pcie_coalesce(struct qib_devdata *dd)
* BIOS may not set PCIe bus-utilization parameters for best performance.
* Check and optionally adjust them to maximize our throughput.
*/
static int qib_pcie_caps = 0x51;
static int qib_pcie_caps;
module_param_named(pcie_caps, qib_pcie_caps, int, S_IRUGO);
MODULE_PARM_DESC(pcie_caps, "Max PCIe tuning: Payload (0..3), ReadReq (4..7)");

1
drivers/staging/media/go7007/go7007-usb.c
View File

@ -1279,3 +1279,4 @@ static struct usb_driver go7007_usb_driver = {
};
module_usb_driver(go7007_usb_driver);
MODULE_LICENSE("GPL v2");

4
fs/ceph/caps.c
View File

@ -641,10 +641,10 @@ static int __cap_is_valid(struct ceph_cap *cap)
unsigned long ttl;
u32 gen;
spin_lock(&cap->session->s_cap_lock);
spin_lock(&cap->session->s_gen_ttl_lock);
gen = cap->session->s_cap_gen;
ttl = cap->session->s_cap_ttl;
spin_unlock(&cap->session->s_cap_lock);
spin_unlock(&cap->session->s_gen_ttl_lock);
if (cap->cap_gen < gen || time_after_eq(jiffies, ttl)) {
dout("__cap_is_valid %p cap %p issued %s "

4
fs/ceph/dir.c
View File

@ -975,10 +975,10 @@ static int dentry_lease_is_valid(struct dentry *dentry)
di = ceph_dentry(dentry);
if (di->lease_session) {
s = di->lease_session;
spin_lock(&s->s_cap_lock);
spin_lock(&s->s_gen_ttl_lock);
gen = s->s_cap_gen;
ttl = s->s_cap_ttl;
spin_unlock(&s->s_cap_lock);
spin_unlock(&s->s_gen_ttl_lock);
if (di->lease_gen == gen &&
time_before(jiffies, dentry->d_time) &&

10
fs/ceph/mds_client.c
View File

@ -262,6 +262,7 @@ static int parse_reply_info(struct ceph_msg *msg,
/* trace */
ceph_decode_32_safe(&p, end, len, bad);
if (len > 0) {
ceph_decode_need(&p, end, len, bad);
err = parse_reply_info_trace(&p, p+len, info, features);
if (err < 0)
goto out_bad;
@ -270,6 +271,7 @@ static int parse_reply_info(struct ceph_msg *msg,
/* extra */
ceph_decode_32_safe(&p, end, len, bad);
if (len > 0) {
ceph_decode_need(&p, end, len, bad);
err = parse_reply_info_extra(&p, p+len, info, features);
if (err < 0)
goto out_bad;
@ -398,9 +400,11 @@ static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc,
s->s_con.peer_name.type = CEPH_ENTITY_TYPE_MDS;
s->s_con.peer_name.num = cpu_to_le64(mds);
spin_lock_init(&s->s_cap_lock);
spin_lock_init(&s->s_gen_ttl_lock);
s->s_cap_gen = 0;
s->s_cap_ttl = 0;
spin_lock_init(&s->s_cap_lock);
s->s_renew_requested = 0;
s->s_renew_seq = 0;
INIT_LIST_HEAD(&s->s_caps);
@ -2326,10 +2330,10 @@ static void handle_session(struct ceph_mds_session *session,
case CEPH_SESSION_STALE:
pr_info("mds%d caps went stale, renewing\n",
session->s_mds);
spin_lock(&session->s_cap_lock);
spin_lock(&session->s_gen_ttl_lock);
session->s_cap_gen++;
session->s_cap_ttl = 0;
spin_unlock(&session->s_cap_lock);
spin_unlock(&session->s_gen_ttl_lock);
send_renew_caps(mdsc, session);
break;

7
fs/ceph/mds_client.h
View File

@ -117,10 +117,13 @@ struct ceph_mds_session {
void *s_authorizer_buf, *s_authorizer_reply_buf;
size_t s_authorizer_buf_len, s_authorizer_reply_buf_len;
/* protected by s_cap_lock */
spinlock_t s_cap_lock;
/* protected by s_gen_ttl_lock */
spinlock_t s_gen_ttl_lock;
u32 s_cap_gen; /* inc each time we get mds stale msg */
unsigned long s_cap_ttl; /* when session caps expire */
/* protected by s_cap_lock */
spinlock_t s_cap_lock;
struct list_head s_caps; /* all caps issued by this session */
int s_nr_caps, s_trim_caps;
int s_num_cap_releases;

4
fs/ceph/xattr.c
View File

@ -111,8 +111,10 @@ static size_t ceph_vxattrcb_layout(struct ceph_inode_info *ci, char *val,
}
static struct ceph_vxattr_cb ceph_file_vxattrs[] = {
{ true, "ceph.file.layout", ceph_vxattrcb_layout},
/* The following extended attribute name is deprecated */
{ true, "ceph.layout", ceph_vxattrcb_layout},
{ NULL, NULL }
{ true, NULL, NULL }
};
static struct ceph_vxattr_cb *ceph_inode_vxattrs(struct inode *inode)

6
fs/logfs/dev_mtd.c
View File

@ -152,9 +152,6 @@ static struct page *logfs_mtd_find_first_sb(struct super_block *sb, u64 *ofs)
filler_t *filler = logfs_mtd_readpage;
struct mtd_info *mtd = super->s_mtd;
if (!mtd_can_have_bb(mtd))
return NULL;
*ofs = 0;
while (mtd_block_isbad(mtd, *ofs)) {
*ofs += mtd->erasesize;
@ -172,9 +169,6 @@ static struct page *logfs_mtd_find_last_sb(struct super_block *sb, u64 *ofs)
filler_t *filler = logfs_mtd_readpage;
struct mtd_info *mtd = super->s_mtd;
if (!mtd_can_have_bb(mtd))
return NULL;
*ofs = mtd->size - mtd->erasesize;
while (mtd_block_isbad(mtd, *ofs)) {
*ofs -= mtd->erasesize;

130
fs/proc/base.c
View File

@ -198,26 +198,6 @@ static int proc_root_link(struct dentry *dentry, struct path *path)
return result;
}
static struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
{
struct mm_struct *mm;
int err;
err = mutex_lock_killable(&task->signal->cred_guard_mutex);
if (err)
return ERR_PTR(err);
mm = get_task_mm(task);
if (mm && mm != current->mm &&
!ptrace_may_access(task, mode)) {
mmput(mm);
mm = ERR_PTR(-EACCES);
}
mutex_unlock(&task->signal->cred_guard_mutex);
return mm;
}
struct mm_struct *mm_for_maps(struct task_struct *task)
{
return mm_access(task, PTRACE_MODE_READ);
@ -711,6 +691,13 @@ static int mem_open(struct inode* inode, struct file* file)
if (IS_ERR(mm))
return PTR_ERR(mm);
if (mm) {
/* ensure this mm_struct can't be freed */
atomic_inc(&mm->mm_count);
/* but do not pin its memory */
mmput(mm);
}
/* OK to pass negative loff_t, we can catch out-of-range */
file->f_mode |= FMODE_UNSIGNED_OFFSET;
file->private_data = mm;
@ -718,57 +705,13 @@ static int mem_open(struct inode* inode, struct file* file)
return 0;
}
static ssize_t mem_read(struct file * file, char __user * buf,
size_t count, loff_t *ppos)
static ssize_t mem_rw(struct file *file, char __user *buf,
size_t count, loff_t *ppos, int write)
{
int ret;
char *page;
unsigned long src = *ppos;
struct mm_struct *mm = file->private_data;
if (!mm)
return 0;
page = (char *)__get_free_page(GFP_TEMPORARY);
if (!page)
return -ENOMEM;
ret = 0;
while (count > 0) {
int this_len, retval;
this_len = (count > PAGE_SIZE) ? PAGE_SIZE : count;
retval = access_remote_vm(mm, src, page, this_len, 0);
if (!retval) {
if (!ret)
ret = -EIO;
break;
}
if (copy_to_user(buf, page, retval)) {
ret = -EFAULT;
break;
}
ret += retval;
src += retval;
buf += retval;
count -= retval;
}
*ppos = src;
free_page((unsigned long) page);
return ret;
}
static ssize_t mem_write(struct file * file, const char __user *buf,
size_t count, loff_t *ppos)
{
int copied;
unsigned long addr = *ppos;
ssize_t copied;
char *page;
unsigned long dst = *ppos;
struct mm_struct *mm = file->private_data;
if (!mm)
return 0;
@ -778,31 +721,54 @@ static ssize_t mem_write(struct file * file, const char __user *buf,
return -ENOMEM;
copied = 0;
while (count > 0) {
int this_len, retval;
if (!atomic_inc_not_zero(&mm->mm_users))
goto free;
this_len = (count > PAGE_SIZE) ? PAGE_SIZE : count;
if (copy_from_user(page, buf, this_len)) {
while (count > 0) {
int this_len = min_t(int, count, PAGE_SIZE);
if (write && copy_from_user(page, buf, this_len)) {
copied = -EFAULT;
break;
}
retval = access_remote_vm(mm, dst, page, this_len, 1);
if (!retval) {
this_len = access_remote_vm(mm, addr, page, this_len, write);
if (!this_len) {
if (!copied)
copied = -EIO;
break;
}
copied += retval;
buf += retval;
dst += retval;
count -= retval;
}
*ppos = dst;
if (!write && copy_to_user(buf, page, this_len)) {
copied = -EFAULT;
break;
}
buf += this_len;
addr += this_len;
copied += this_len;
count -= this_len;
}
*ppos = addr;
mmput(mm);
free:
free_page((unsigned long) page);
return copied;
}
static ssize_t mem_read(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
return mem_rw(file, buf, count, ppos, 0);
}
static ssize_t mem_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
return mem_rw(file, (char __user*)buf, count, ppos, 1);
}
loff_t mem_lseek(struct file *file, loff_t offset, int orig)
{
switch (orig) {
@ -822,8 +788,8 @@ loff_t mem_lseek(struct file *file, loff_t offset, int orig)
static int mem_release(struct inode *inode, struct file *file)
{
struct mm_struct *mm = file->private_data;
mmput(mm);
if (mm)
mmdrop(mm);
return 0;
}

0
include/linux/lp8727.h Executable file → Normal file
View File

2
include/linux/mpi.h
View File

@ -57,8 +57,6 @@ struct gcry_mpi {
typedef struct gcry_mpi *MPI;
#define MPI_NULL NULL
#define mpi_get_nlimbs(a) ((a)->nlimbs)
#define mpi_is_neg(a) ((a)->sign)

2
include/linux/mtd/mtd.h
View File

@ -489,7 +489,7 @@ static inline int mtd_has_oob(const struct mtd_info *mtd)
static inline int mtd_can_have_bb(const struct mtd_info *mtd)
{
return 0;
return !!mtd->block_isbad;
}
/* Kernel-side ioctl definitions */

6
include/linux/sched.h
View File

@ -2259,6 +2259,12 @@ static inline void mmdrop(struct mm_struct * mm)
extern void mmput(struct mm_struct *);
/* Grab a reference to a task's mm, if it is not already going away */
extern struct mm_struct *get_task_mm(struct task_struct *task);
/*
* Grab a reference to a task's mm, if it is not already going away
* and ptrace_may_access with the mode parameter passed to it
* succeeds.
*/
extern struct mm_struct *mm_access(struct task_struct *task, unsigned int mode);
/* Remove the current tasks stale references to the old mm_struct */
extern void mm_release(struct task_struct *, struct mm_struct *);
/* Allocate a new mm structure and copy contents from tsk->mm */

16
kernel/exit.c
View File

@ -1038,6 +1038,22 @@ void do_exit(long code)
if (tsk->nr_dirtied)
__this_cpu_add(dirty_throttle_leaks, tsk->nr_dirtied);
exit_rcu();
/*
* The setting of TASK_RUNNING by try_to_wake_up() may be delayed
* when the following two conditions become true.
* - There is race condition of mmap_sem (It is acquired by
* exit_mm()), and
* - SMI occurs before setting TASK_RUNINNG.
* (or hypervisor of virtual machine switches to other guest)
* As a result, we may become TASK_RUNNING after becoming TASK_DEAD
*
* To avoid it, we have to wait for releasing tsk->pi_lock which
* is held by try_to_wake_up()
*/
smp_mb();
raw_spin_unlock_wait(&tsk->pi_lock);
/* causes final put_task_struct in finish_task_switch(). */
tsk->state = TASK_DEAD;
tsk->flags |= PF_NOFREEZE; /* tell freezer to ignore us */

20
kernel/fork.c
View File

@ -647,6 +647,26 @@ struct mm_struct *get_task_mm(struct task_struct *task)
}
EXPORT_SYMBOL_GPL(get_task_mm);
struct mm_struct *mm_access(struct task_struct *task, unsigned int mode)
{
struct mm_struct *mm;
int err;
err = mutex_lock_killable(&task->signal->cred_guard_mutex);
if (err)
return ERR_PTR(err);
mm = get_task_mm(task);
if (mm && mm != current->mm &&
!ptrace_may_access(task, mode)) {
mmput(mm);
mm = ERR_PTR(-EACCES);
}
mutex_unlock(&task->signal->cred_guard_mutex);
return mm;
}
/* Please note the differences between mmput and mm_release.
* mmput is called whenever we stop holding onto a mm_struct,
* error success whatever.

19
kernel/sched/core.c
View File

@ -74,6 +74,7 @@
#include <asm/tlb.h>
#include <asm/irq_regs.h>
#include <asm/mutex.h>
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#endif
@ -723,9 +724,6 @@ static void dequeue_task(struct rq *rq, struct task_struct *p, int flags)
p->sched_class->dequeue_task(rq, p, flags);
}
/*
* activate_task - move a task to the runqueue.
*/
void activate_task(struct rq *rq, struct task_struct *p, int flags)
{
if (task_contributes_to_load(p))
@ -734,9 +732,6 @@ void activate_task(struct rq *rq, struct task_struct *p, int flags)
enqueue_task(rq, p, flags);
}
/*
* deactivate_task - remove a task from the runqueue.
*/
void deactivate_task(struct rq *rq, struct task_struct *p, int flags)
{
if (task_contributes_to_load(p))
@ -4134,7 +4129,7 @@ static int __sched_setscheduler(struct task_struct *p, int policy,
on_rq = p->on_rq;
running = task_current(rq, p);
if (on_rq)
deactivate_task(rq, p, 0);
dequeue_task(rq, p, 0);
if (running)
p->sched_class->put_prev_task(rq, p);
@ -4147,7 +4142,7 @@ static int __sched_setscheduler(struct task_struct *p, int policy,
if (running)
p->sched_class->set_curr_task(rq);
if (on_rq)
activate_task(rq, p, 0);
enqueue_task(rq, p, 0);
check_class_changed(rq, p, prev_class, oldprio);
task_rq_unlock(rq, p, &flags);
@ -4998,9 +4993,9 @@ static int __migrate_task(struct task_struct *p, int src_cpu, int dest_cpu)
* placed properly.
*/
if (p->on_rq) {
deactivate_task(rq_src, p, 0);
dequeue_task(rq_src, p, 0);
set_task_cpu(p, dest_cpu);
activate_task(rq_dest, p, 0);
enqueue_task(rq_dest, p, 0);
check_preempt_curr(rq_dest, p, 0);
}
done:
@ -7032,10 +7027,10 @@ static void normalize_task(struct rq *rq, struct task_struct *p)
on_rq = p->on_rq;
if (on_rq)
deactivate_task(rq, p, 0);
dequeue_task(rq, p, 0);
__setscheduler(rq, p, SCHED_NORMAL, 0);
if (on_rq) {
activate_task(rq, p, 0);
enqueue_task(rq, p, 0);
resched_task(rq->curr);
}

34
kernel/sched/fair.c
View File

@ -4866,6 +4866,15 @@ static void nohz_balancer_kick(int cpu)
return;
}
static inline void clear_nohz_tick_stopped(int cpu)
{
if (unlikely(test_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu)))) {
cpumask_clear_cpu(cpu, nohz.idle_cpus_mask);
atomic_dec(&nohz.nr_cpus);
clear_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu));
}
}
static inline void set_cpu_sd_state_busy(void)
{
struct sched_domain *sd;
@ -4904,6 +4913,12 @@ void select_nohz_load_balancer(int stop_tick)
{
int cpu = smp_processor_id();
/*
* If this cpu is going down, then nothing needs to be done.
*/
if (!cpu_active(cpu))
return;
if (stop_tick) {
if (test_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu)))
return;
@ -4914,6 +4929,18 @@ void select_nohz_load_balancer(int stop_tick)
}
return;
}
static int __cpuinit sched_ilb_notifier(struct notifier_block *nfb,
unsigned long action, void *hcpu)
{
switch (action & ~CPU_TASKS_FROZEN) {
case CPU_DYING:
clear_nohz_tick_stopped(smp_processor_id());
return NOTIFY_OK;
default:
return NOTIFY_DONE;
}
}
#endif
static DEFINE_SPINLOCK(balancing);
@ -5070,11 +5097,7 @@ static inline int nohz_kick_needed(struct rq *rq, int cpu)
* busy tick after returning from idle, we will update the busy stats.
*/
set_cpu_sd_state_busy();
if (unlikely(test_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu)))) {
clear_bit(NOHZ_TICK_STOPPED, nohz_flags(cpu));
cpumask_clear_cpu(cpu, nohz.idle_cpus_mask);
atomic_dec(&nohz.nr_cpus);
}
clear_nohz_tick_stopped(cpu);
/*
* None are in tickless mode and hence no need for NOHZ idle load
@ -5590,6 +5613,7 @@ __init void init_sched_fair_class(void)
#ifdef CONFIG_NO_HZ
zalloc_cpumask_var(&nohz.idle_cpus_mask, GFP_NOWAIT);
cpu_notifier(sched_ilb_notifier, 0);
#endif
#endif /* SMP */

5
kernel/sched/rt.c
View File

@ -1587,6 +1587,11 @@ static int push_rt_task(struct rq *rq)
if (!next_task)
return 0;
#ifdef __ARCH_WANT_INTERRUPTS_ON_CTXSW
if (unlikely(task_running(rq, next_task)))
return 0;
#endif
retry:
if (unlikely(next_task == rq->curr)) {
WARN_ON(1);

2
kernel/watchdog.c
View File

@ -296,7 +296,7 @@ static enum hrtimer_restart watchdog_timer_fn(struct hrtimer *hrtimer)
if (__this_cpu_read(soft_watchdog_warn) == true)
return HRTIMER_RESTART;
printk(KERN_ERR "BUG: soft lockup - CPU#%d stuck for %us! [%s:%d]\n",
printk(KERN_EMERG "BUG: soft lockup - CPU#%d stuck for %us! [%s:%d]\n",
smp_processor_id(), duration,
current->comm, task_pid_nr(current));
print_modules();

4
lib/Kconfig
View File

@ -279,6 +279,9 @@ config AVERAGE
If unsure, say N.
config CLZ_TAB
bool
config CORDIC
tristate "CORDIC algorithm"
help
@ -287,6 +290,7 @@ config CORDIC
config MPILIB
tristate
select CLZ_TAB
help
Multiprecision maths library from GnuPG.
It is used to implement RSA digital signature verification,

2
lib/Makefile
View File

@ -121,6 +121,8 @@ obj-$(CONFIG_DQL) += dynamic_queue_limits.o
obj-$(CONFIG_MPILIB) += mpi/
obj-$(CONFIG_SIGNATURE) += digsig.o
obj-$(CONFIG_CLZ_TAB) += clz_tab.o
hostprogs-y := gen_crc32table
clean-files := crc32table.h

2
lib/bug.c
View File

@ -169,7 +169,7 @@ enum bug_trap_type report_bug(unsigned long bugaddr, struct pt_regs *regs)
return BUG_TRAP_TYPE_WARN;
}
printk(KERN_EMERG "------------[ cut here ]------------\n");
printk(KERN_DEFAULT "------------[ cut here ]------------\n");
if (file)
printk(KERN_CRIT "kernel BUG at %s:%u!\n",

18
lib/clz_tab.c Normal file
View File

@ -0,0 +1,18 @@
const unsigned char __clz_tab[] = {
0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8,
};

52
lib/digsig.c
View File

@ -34,14 +34,9 @@ static int pkcs_1_v1_5_decode_emsa(const unsigned char *msg,
unsigned long msglen,
unsigned long modulus_bitlen,
unsigned char *out,
unsigned long *outlen,
int *is_valid)
unsigned long *outlen)
{
unsigned long modulus_len, ps_len, i;
int result;
/* default to invalid packet */
*is_valid = 0;
modulus_len = (modulus_bitlen >> 3) + (modulus_bitlen & 7 ? 1 : 0);
@ -50,39 +45,30 @@ static int pkcs_1_v1_5_decode_emsa(const unsigned char *msg,
return -EINVAL;
/* separate encoded message */
if ((msg[0] != 0x00) || (msg[1] != (unsigned char)1)) {
result = -EINVAL;
goto bail;
}
if ((msg[0] != 0x00) || (msg[1] != (unsigned char)1))
return -EINVAL;
for (i = 2; i < modulus_len - 1; i++)
if (msg[i] != 0xFF)
break;
/* separator check */
if (msg[i] != 0) {
if (msg[i] != 0)
/* There was no octet with hexadecimal value 0x00
to separate ps from m. */
result = -EINVAL;
goto bail;
}
return -EINVAL;
ps_len = i - 2;
if (*outlen < (msglen - (2 + ps_len + 1))) {
*outlen = msglen - (2 + ps_len + 1);
result = -EOVERFLOW;
goto bail;
return -EOVERFLOW;
}
*outlen = (msglen - (2 + ps_len + 1));
memcpy(out, &msg[2 + ps_len + 1], *outlen);
/* valid packet */
*is_valid = 1;
result = 0;
bail:
return result;
return 0;
}
/*
@ -96,7 +82,7 @@ static int digsig_verify_rsa(struct key *key,
unsigned long len;
unsigned long mlen, mblen;
unsigned nret, l;
int valid, head, i;
int head, i;
unsigned char *out1 = NULL, *out2 = NULL;
MPI in = NULL, res = NULL, pkey[2];
uint8_t *p, *datap, *endp;
@ -105,6 +91,10 @@ static int digsig_verify_rsa(struct key *key,
down_read(&key->sem);
ukp = key->payload.data;
if (ukp->datalen < sizeof(*pkh))
goto err1;
pkh = (struct pubkey_hdr *)ukp->data;
if (pkh->version != 1)
@ -117,18 +107,23 @@ static int digsig_verify_rsa(struct key *key,
goto err1;
datap = pkh->mpi;
endp = datap + ukp->datalen;
endp = ukp->data + ukp->datalen;
err = -ENOMEM;
for (i = 0; i < pkh->nmpi; i++) {
unsigned int remaining = endp - datap;
pkey[i] = mpi_read_from_buffer(datap, &remaining);
if (!pkey[i])
goto err;
datap += remaining;
}
mblen = mpi_get_nbits(pkey[0]);
mlen = (mblen + 7)/8;
err = -ENOMEM;
if (mlen == 0)
goto err;
out1 = kzalloc(mlen, GFP_KERNEL);
if (!out1)
@ -167,10 +162,9 @@ static int digsig_verify_rsa(struct key *key,
memset(out1, 0, head);
memcpy(out1 + head, p, l);
err = -EINVAL;
pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len, &valid);
err = pkcs_1_v1_5_decode_emsa(out1, len, mblen, out2, &len);
if (valid && len == hlen)
if (!err && len == hlen)
err = memcmp(out2, h, hlen);
err:
@ -178,8 +172,8 @@ static int digsig_verify_rsa(struct key *key,
mpi_free(res);
kfree(out1);
kfree(out2);
mpi_free(pkey[0]);
mpi_free(pkey[1]);
while (--i >= 0)
mpi_free(pkey[i]);
err1:
up_read(&key->sem);

44
lib/mpi/longlong.h
View File

@ -1200,18 +1200,40 @@ do { \
"r" ((USItype)(v)) \
: "%g1", "%g2" __AND_CLOBBER_CC)
#define UMUL_TIME 39 /* 39 instructions */
#endif
#ifndef udiv_qrnnd
#ifndef LONGLONG_STANDALONE
/* It's quite necessary to add this much assembler for the sparc.
The default udiv_qrnnd (in C) is more than 10 times slower! */
#define udiv_qrnnd(q, r, n1, n0, d) \
do { USItype __r; \
(q) = __udiv_qrnnd(&__r, (n1), (n0), (d)); \
(r) = __r; \
} while (0)
extern USItype __udiv_qrnnd();
#define UDIV_TIME 140
#endif /* LONGLONG_STANDALONE */
#endif /* udiv_qrnnd */
__asm__ ("! Inlined udiv_qrnnd\n\t" \
"mov 32,%%g1\n\t" \
"subcc %1,%2,%%g0\n\t" \
"1: bcs 5f\n\t" \
"addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \
"sub %1,%2,%1 ! this kills msb of n\n\t" \
"addx %1,%1,%1 ! so this can't give carry\n\t" \
"subcc %%g1,1,%%g1\n\t" \
"2: bne 1b\n\t" \
"subcc %1,%2,%%g0\n\t" \
"bcs 3f\n\t" \
"addxcc %0,%0,%0 ! shift n1n0 and a q-bit in lsb\n\t" \
"b 3f\n\t" \
"sub %1,%2,%1 ! this kills msb of n\n\t" \
"4: sub %1,%2,%1\n\t" \
"5: addxcc %1,%1,%1\n\t" \
"bcc 2b\n\t" \
"subcc %%g1,1,%%g1\n\t" \
"! Got carry from n. Subtract next step to cancel this carry.\n\t" \
"bne 4b\n\t" \
"addcc %0,%0,%0 ! shift n1n0 and a 0-bit in lsb\n\t" \
"sub %1,%2,%1\n\t" \
"3: xnor %0,0,%0\n\t" \
"! End of inline udiv_qrnnd\n" \
: "=&r" ((USItype)(q)), \
"=&r" ((USItype)(r)) \
: "r" ((USItype)(d)), \
"1" ((USItype)(n1)), \
"0" ((USItype)(n0)) : "%g1", "cc")
#define UDIV_TIME (3+7*32) /* 7 instructions/iteration. 32 iterations. */
#endif
#endif /* __sparc__ */
/***************************************

19
lib/mpi/mpi-bit.c
View File

@ -21,25 +21,6 @@
#include "mpi-internal.h"
#include "longlong.h"
const unsigned char __clz_tab[] = {
0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5,
5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
6, 6, 6, 6, 6, 6, 6, 6,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
7, 7, 7, 7, 7, 7, 7, 7,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
8, 8, 8, 8, 8, 8, 8, 8,
};
#define A_LIMB_1 ((mpi_limb_t) 1)
/****************

5
lib/mpi/mpi-div.c
View File

@ -149,6 +149,9 @@ int mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den)
mpi_ptr_t marker[5];
int markidx = 0;
if (!dsize)
return -EINVAL;
memset(marker, 0, sizeof(marker));
/* Ensure space is enough for quotient and remainder.
@ -207,6 +210,8 @@ int mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den)
* numerator would be gradually overwritten by the quotient limbs. */
if (qp == np) { /* Copy NP object to temporary space. */
np = marker[markidx++] = mpi_alloc_limb_space(nsize);
if (!np)
goto nomem;
MPN_COPY(np, qp, nsize);
}
} else /* Put quotient at top of remainder. */

2
lib/mpi/mpi-pow.c
View File

@ -59,7 +59,7 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod)
ep = exp->d;
if (!msize)
msize = 1 / msize; /* provoke a signal */
return -EINVAL;
if (!esize) {
/* Exponent is zero, result is 1 mod MOD, i.e., 1 or 0

91
lib/mpi/mpicoder.c
View File

@ -20,78 +20,15 @@
#include "mpi-internal.h"
#define DIM(v) (sizeof(v)/sizeof((v)[0]))
#define MAX_EXTERN_MPI_BITS 16384
static uint8_t asn[15] = /* Object ID is 1.3.14.3.2.26 */
{ 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03,
0x02, 0x1a, 0x05, 0x00, 0x04, 0x14
};
MPI do_encode_md(const void *sha_buffer, unsigned nbits)
{
int nframe = (nbits + 7) / 8;
uint8_t *frame, *fr_pt;
int i = 0, n;
size_t asnlen = DIM(asn);
MPI a = MPI_NULL;
if (SHA1_DIGEST_LENGTH + asnlen + 4 > nframe)
pr_info("MPI: can't encode a %d bit MD into a %d bits frame\n",
(int)(SHA1_DIGEST_LENGTH * 8), (int)nbits);
/* We encode the MD in this way:
*
* 0 A PAD(n bytes) 0 ASN(asnlen bytes) MD(len bytes)
*
* PAD consists of FF bytes.
*/
frame = kmalloc(nframe, GFP_KERNEL);
if (!frame)
return MPI_NULL;
n = 0;
frame[n++] = 0;
frame[n++] = 1; /* block type */
i = nframe - SHA1_DIGEST_LENGTH - asnlen - 3;
if (i <= 1) {
pr_info("MPI: message digest encoding failed\n");
kfree(frame);
return a;
}
memset(frame + n, 0xff, i);
n += i;
frame[n++] = 0;
memcpy(frame + n, &asn, asnlen);
n += asnlen;
memcpy(frame + n, sha_buffer, SHA1_DIGEST_LENGTH);
n += SHA1_DIGEST_LENGTH;
i = nframe;
fr_pt = frame;
if (n != nframe) {
printk
("MPI: message digest encoding failed, frame length is wrong\n");
kfree(frame);
return a;
}
a = mpi_alloc((nframe + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB);
mpi_set_buffer(a, frame, nframe, 0);
kfree(frame);
return a;
}
MPI mpi_read_from_buffer(const void *xbuffer, unsigned *ret_nread)
{
const uint8_t *buffer = xbuffer;
int i, j;
unsigned nbits, nbytes, nlimbs, nread = 0;
mpi_limb_t a;
MPI val = MPI_NULL;
MPI val = NULL;
if (*ret_nread < 2)
goto leave;
@ -108,7 +45,7 @@ MPI mpi_read_from_buffer(const void *xbuffer, unsigned *ret_nread)
nlimbs = (nbytes + BYTES_PER_MPI_LIMB - 1) / BYTES_PER_MPI_LIMB;
val = mpi_alloc(nlimbs);
if (!val)
return MPI_NULL;
return NULL;
i = BYTES_PER_MPI_LIMB - nbytes % BYTES_PER_MPI_LIMB;
i %= BYTES_PER_MPI_LIMB;
val->nbits = nbits;
@ -211,30 +148,6 @@ int mpi_fromstr(MPI val, const char *str)
}
EXPORT_SYMBOL_GPL(mpi_fromstr);
/****************
* Special function to get the low 8 bytes from an mpi.
* This can be used as a keyid; KEYID is an 2 element array.
* Return the low 4 bytes.
*/
u32 mpi_get_keyid(const MPI a, u32 *keyid)
{
#if BYTES_PER_MPI_LIMB == 4
if (keyid) {
keyid[0] = a->nlimbs >= 2 ? a->d[1] : 0;
keyid[1] = a->nlimbs >= 1 ? a->d[0] : 0;
}
return a->nlimbs >= 1 ? a->d[0] : 0;
#elif BYTES_PER_MPI_LIMB == 8
if (keyid) {
keyid[0] = a->nlimbs ? (u32) (a->d[0] >> 32) : 0;
keyid[1] = a->nlimbs ? (u32) (a->d[0] & 0xffffffff) : 0;
}
return a->nlimbs ? (u32) (a->d[0] & 0xffffffff) : 0;
#else
#error Make this function work with other LIMB sizes
#endif
}
/****************
* Return an allocated buffer with the MPI (msb first).
* NBYTES receives the length of this buffer. Caller must free the

4
lib/mpi/mpih-div.c
View File

@ -217,6 +217,10 @@ mpihelp_divrem(mpi_ptr_t qp, mpi_size_t qextra_limbs,
case 0:
/* We are asked to divide by zero, so go ahead and do it! (To make
the compiler not remove this statement, return the value.) */
/*
* existing clients of this function have been modified
* not to call it with dsize == 0, so this should not happen
*/
return 1 / dsize;
case 1:

5
lib/mpi/mpiutil.c
View File

@ -58,6 +58,9 @@ mpi_ptr_t mpi_alloc_limb_space(unsigned nlimbs)
{
size_t len = nlimbs * sizeof(mpi_limb_t);
if (!len)
return NULL;
return kmalloc(len, GFP_KERNEL);
}
@ -135,7 +138,7 @@ int mpi_copy(MPI *copied, const MPI a)
size_t i;
MPI b;
*copied = MPI_NULL;
*copied = NULL;
if (a) {
b = mpi_alloc(a->nlimbs);

23
mm/process_vm_access.c
View File

@ -298,22 +298,17 @@ static ssize_t process_vm_rw_core(pid_t pid, const struct iovec *lvec,
goto free_proc_pages;
}
task_lock(task);
if (__ptrace_may_access(task, PTRACE_MODE_ATTACH)) {
task_unlock(task);
rc = -EPERM;
mm = mm_access(task, PTRACE_MODE_ATTACH);
if (!mm || IS_ERR(mm)) {
rc = IS_ERR(mm) ? PTR_ERR(mm) : -ESRCH;
/*
* Explicitly map EACCES to EPERM as EPERM is a more a
* appropriate error code for process_vw_readv/writev
*/
if (rc == -EACCES)
rc = -EPERM;
goto put_task_struct;
}
mm = task->mm;
if (!mm || (task->flags & PF_KTHREAD)) {
task_unlock(task);
rc = -EINVAL;
goto put_task_struct;
}
atomic_inc(&mm->mm_users);
task_unlock(task);
for (i = 0; i < riovcnt && iov_l_curr_idx < liovcnt; i++) {
rc = process_vm_rw_single_vec(

2
net/ceph/ceph_common.c
View File

@ -85,8 +85,6 @@ int ceph_check_fsid(struct ceph_client *client, struct ceph_fsid *fsid)
} else {
pr_info("client%lld fsid %pU\n", ceph_client_id(client), fsid);
memcpy(&client->fsid, fsid, sizeof(*fsid));
ceph_debugfs_client_init(client);
client->have_fsid = true;
}
return 0;
}

13
net/ceph/mon_client.c
View File

@ -8,8 +8,8 @@
#include <linux/ceph/mon_client.h>
#include <linux/ceph/libceph.h>
#include <linux/ceph/debugfs.h>
#include <linux/ceph/decode.h>
#include <linux/ceph/auth.h>
/*
@ -340,8 +340,19 @@ static void ceph_monc_handle_map(struct ceph_mon_client *monc,
client->monc.monmap = monmap;
kfree(old);
if (!client->have_fsid) {
client->have_fsid = true;
mutex_unlock(&monc->mutex);
/*
* do debugfs initialization without mutex to avoid
* creating a locking dependency
*/
ceph_debugfs_client_init(client);
goto out_unlocked;
}
out:
mutex_unlock(&monc->mutex);
out_unlocked:
wake_up_all(&client->auth_wq);
}

84
tools/perf/Documentation/Makefile
View File

@ -1,3 +1,10 @@
OUTPUT := ./
ifeq ("$(origin O)", "command line")
ifneq ($(O),)
OUTPUT := $(O)/
endif
endif
MAN1_TXT= \
$(filter-out $(addsuffix .txt, $(ARTICLES) $(SP_ARTICLES)), \
$(wildcard perf-*.txt)) \
@ -6,10 +13,11 @@ MAN5_TXT=
MAN7_TXT=
MAN_TXT = $(MAN1_TXT) $(MAN5_TXT) $(MAN7_TXT)
MAN_XML=$(patsubst %.txt,%.xml,$(MAN_TXT))
MAN_HTML=$(patsubst %.txt,%.html,$(MAN_TXT))
_MAN_XML=$(patsubst %.txt,%.xml,$(MAN_TXT))
_MAN_HTML=$(patsubst %.txt,%.html,$(MAN_TXT))
DOC_HTML=$(MAN_HTML)
MAN_XML=$(addprefix $(OUTPUT),$(_MAN_XML))
MAN_HTML=$(addprefix $(OUTPUT),$(_MAN_HTML))
ARTICLES =
# with their own formatting rules.
@ -18,11 +26,17 @@ API_DOCS = $(patsubst %.txt,%,$(filter-out technical/api-index-skel.txt technica
SP_ARTICLES += $(API_DOCS)
SP_ARTICLES += technical/api-index
DOC_HTML += $(patsubst %,%.html,$(ARTICLES) $(SP_ARTICLES))
_DOC_HTML = $(_MAN_HTML)
_DOC_HTML+=$(patsubst %,%.html,$(ARTICLES) $(SP_ARTICLES))
DOC_HTML=$(addprefix $(OUTPUT),$(_DOC_HTML))
DOC_MAN1=$(patsubst %.txt,%.1,$(MAN1_TXT))
DOC_MAN5=$(patsubst %.txt,%.5,$(MAN5_TXT))
DOC_MAN7=$(patsubst %.txt,%.7,$(MAN7_TXT))
_DOC_MAN1=$(patsubst %.txt,%.1,$(MAN1_TXT))
_DOC_MAN5=$(patsubst %.txt,%.5,$(MAN5_TXT))
_DOC_MAN7=$(patsubst %.txt,%.7,$(MAN7_TXT))
DOC_MAN1=$(addprefix $(OUTPUT),$(_DOC_MAN1))
DOC_MAN5=$(addprefix $(OUTPUT),$(_DOC_MAN5))
DOC_MAN7=$(addprefix $(OUTPUT),$(_DOC_MAN7))
# Make the path relative to DESTDIR, not prefix
ifndef DESTDIR
@ -150,9 +164,9 @@ man1: $(DOC_MAN1)
man5: $(DOC_MAN5)
man7: $(DOC_MAN7)
info: perf.info perfman.info
info: $(OUTPUT)perf.info $(OUTPUT)perfman.info
pdf: user-manual.pdf
pdf: $(OUTPUT)user-manual.pdf
install: install-man
@ -166,7 +180,7 @@ install-man: man
install-info: info
$(INSTALL) -d -m 755 $(DESTDIR)$(infodir)
$(INSTALL) -m 644 perf.info perfman.info $(DESTDIR)$(infodir)
$(INSTALL) -m 644 $(OUTPUT)perf.info $(OUTPUT)perfman.info $(DESTDIR)$(infodir)
if test -r $(DESTDIR)$(infodir)/dir; then \
$(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) perf.info ;\
$(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) perfman.info ;\
@ -176,7 +190,7 @@ install-info: info
install-pdf: pdf
$(INSTALL) -d -m 755 $(DESTDIR)$(pdfdir)
$(INSTALL) -m 644 user-manual.pdf $(DESTDIR)$(pdfdir)
$(INSTALL) -m 644 $(OUTPUT)user-manual.pdf $(DESTDIR)$(pdfdir)
#install-html: html
# '$(SHELL_PATH_SQ)' ./install-webdoc.sh $(DESTDIR)$(htmldir)
@ -189,14 +203,14 @@ install-pdf: pdf
#
# Determine "include::" file references in asciidoc files.
#
doc.dep : $(wildcard *.txt) build-docdep.perl
$(OUTPUT)doc.dep : $(wildcard *.txt) build-docdep.perl
$(QUIET_GEN)$(RM) $@+ $@ && \
$(PERL_PATH) ./build-docdep.perl >$@+ $(QUIET_STDERR) && \
mv $@+ $@
-include doc.dep
-include $(OUPTUT)doc.dep
cmds_txt = cmds-ancillaryinterrogators.txt \
_cmds_txt = cmds-ancillaryinterrogators.txt \
cmds-ancillarymanipulators.txt \
cmds-mainporcelain.txt \
cmds-plumbinginterrogators.txt \
@ -205,32 +219,36 @@ cmds_txt = cmds-ancillaryinterrogators.txt \
cmds-synchelpers.txt \
cmds-purehelpers.txt \
cmds-foreignscminterface.txt
cmds_txt=$(addprefix $(OUTPUT),$(_cmds_txt))
$(cmds_txt): cmd-list.made
$(cmds_txt): $(OUTPUT)cmd-list.made
cmd-list.made: cmd-list.perl ../command-list.txt $(MAN1_TXT)
$(OUTPUT)cmd-list.made: cmd-list.perl ../command-list.txt $(MAN1_TXT)
$(QUIET_GEN)$(RM) $@ && \
$(PERL_PATH) ./cmd-list.perl ../command-list.txt $(QUIET_STDERR) && \
date >$@
clean:
$(RM) *.xml *.xml+ *.html *.html+ *.1 *.5 *.7
$(RM) *.texi *.texi+ *.texi++ perf.info perfman.info
$(RM) howto-index.txt howto/*.html doc.dep
$(RM) technical/api-*.html technical/api-index.txt
$(RM) $(cmds_txt) *.made
$(RM) $(MAN_XML) $(addsuffix +,$(MAN_XML))
$(RM) $(MAN_HTML) $(addsuffix +,$(MAN_HTML))
$(RM) $(DOC_HTML) $(DOC_MAN1) $(DOC_MAN5) $(DOC_MAN7)
$(RM) $(OUTPUT)*.texi $(OUTPUT)*.texi+ $(OUTPUT)*.texi++
$(RM) $(OUTPUT)perf.info $(OUTPUT)perfman.info
$(RM) $(OUTPUT)howto-index.txt $(OUTPUT)howto/*.html $(OUTPUT)doc.dep
$(RM) $(OUTPUT)technical/api-*.html $(OUTPUT)technical/api-index.txt
$(RM) $(cmds_txt) $(OUTPUT)*.made
$(MAN_HTML): %.html : %.txt
$(MAN_HTML): $(OUTPUT)%.html : %.txt
$(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
$(ASCIIDOC) -b xhtml11 -d manpage -f asciidoc.conf \
$(ASCIIDOC_EXTRA) -aperf_version=$(PERF_VERSION) -o $@+ $< && \
mv $@+ $@
%.1 %.5 %.7 : %.xml
$(OUTPUT)%.1 $(OUTPUT)%.5 $(OUTPUT)%.7 : $(OUTPUT)%.xml
$(QUIET_XMLTO)$(RM) $@ && \
xmlto -m $(MANPAGE_XSL) $(XMLTO_EXTRA) man $<
xmlto -o $(OUTPUT) -m $(MANPAGE_XSL) $(XMLTO_EXTRA) man $<
%.xml : %.txt
$(OUTPUT)%.xml : %.txt
$(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
$(ASCIIDOC) -b docbook -d manpage -f asciidoc.conf \
$(ASCIIDOC_EXTRA) -aperf_version=$(PERF_VERSION) -o $@+ $< && \
@ -239,25 +257,25 @@ $(MAN_HTML): %.html : %.txt
XSLT = docbook.xsl
XSLTOPTS = --xinclude --stringparam html.stylesheet docbook-xsl.css
user-manual.html: user-manual.xml
$(OUTPUT)user-manual.html: $(OUTPUT)user-manual.xml
$(QUIET_XSLTPROC)xsltproc $(XSLTOPTS) -o $@ $(XSLT) $<
perf.info: user-manual.texi
$(QUIET_MAKEINFO)$(MAKEINFO) --no-split -o $@ user-manual.texi
$(OUTPUT)perf.info: $(OUTPUT)user-manual.texi
$(QUIET_MAKEINFO)$(MAKEINFO) --no-split -o $@ $(OUTPUT)user-manual.texi
user-manual.texi: user-manual.xml
$(OUTPUT)user-manual.texi: $(OUTPUT)user-manual.xml
$(QUIET_DB2TEXI)$(RM) $@+ $@ && \
$(DOCBOOK2X_TEXI) user-manual.xml --encoding=UTF-8 --to-stdout >$@++ && \
$(DOCBOOK2X_TEXI) $(OUTPUT)user-manual.xml --encoding=UTF-8 --to-stdout >$@++ && \
$(PERL_PATH) fix-texi.perl <$@++ >$@+ && \
rm $@++ && \
mv $@+ $@
user-manual.pdf: user-manual.xml
$(OUTPUT)user-manual.pdf: $(OUTPUT)user-manual.xml
$(QUIET_DBLATEX)$(RM) $@+ $@ && \
$(DBLATEX) -o $@+ -p /etc/asciidoc/dblatex/asciidoc-dblatex.xsl -s /etc/asciidoc/dblatex/asciidoc-dblatex.sty $< && \
mv $@+ $@
perfman.texi: $(MAN_XML) cat-texi.perl
$(OUTPUT)perfman.texi: $(MAN_XML) cat-texi.perl
$(QUIET_DB2TEXI)$(RM) $@+ $@ && \
($(foreach xml,$(MAN_XML),$(DOCBOOK2X_TEXI) --encoding=UTF-8 \
--to-stdout $(xml) &&) true) > $@++ && \
@ -265,7 +283,7 @@ perfman.texi: $(MAN_XML) cat-texi.perl
rm $@++ && \
mv $@+ $@
perfman.info: perfman.texi
$(OUTPUT)perfman.info: $(OUTPUT)perfman.texi
$(QUIET_MAKEINFO)$(MAKEINFO) --no-split --no-validate $*.texi
$(patsubst %.txt,%.texi,$(MAN_TXT)): %.texi : %.xml

1
tools/perf/Makefile
View File

@ -794,7 +794,6 @@ help:
@echo ' quick-install-html - install the html documentation quickly'
@echo ''
@echo 'Perf maintainer targets:'
@echo ' distclean - alias to clean'
@echo ' clean - clean all binary objects and build output'
doc:

6
tools/perf/bench/mem-memcpy-x86-64-asm.S
View File

@ -4,3 +4,9 @@
#define Lmemcpy_c globl memcpy_c; memcpy_c
#define Lmemcpy_c_e globl memcpy_c_e; memcpy_c_e
#include "../../../arch/x86/lib/memcpy_64.S"
/*
* We need to provide note.GNU-stack section, saying that we want
* NOT executable stack. Otherwise the final linking will assume that
* the ELF stack should not be restricted at all and set it RWX.
*/
.section .note.GNU-stack,"",@progbits

7
tools/perf/bench/mem-memset-x86-64-asm.S
View File

@ -4,3 +4,10 @@
#define Lmemset_c globl memset_c; memset_c
#define Lmemset_c_e globl memset_c_e; memset_c_e
#include "../../../arch/x86/lib/memset_64.S"
/*
* We need to provide note.GNU-stack section, saying that we want
* NOT executable stack. Otherwise the final linking will assume that
* the ELF stack should not be restricted at all and set it RWX.
*/
.section .note.GNU-stack,"",@progbits

12
tools/perf/builtin-probe.c
View File

@ -58,7 +58,7 @@ static struct {
struct perf_probe_event events[MAX_PROBES];
struct strlist *dellist;
struct line_range line_range;
const char *target_module;
const char *target;
int max_probe_points;
struct strfilter *filter;
} params;
@ -246,7 +246,7 @@ static const struct option options[] = {
"file", "vmlinux pathname"),
OPT_STRING('s', "source", &symbol_conf.source_prefix,
"directory", "path to kernel source"),
OPT_STRING('m', "module", &params.target_module,
OPT_STRING('m', "module", &params.target,
"modname|path",
"target module name (for online) or path (for offline)"),
#endif
@ -333,7 +333,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
if (!params.filter)
params.filter = strfilter__new(DEFAULT_FUNC_FILTER,
NULL);
ret = show_available_funcs(params.target_module,
ret = show_available_funcs(params.target,
params.filter);
strfilter__delete(params.filter);
if (ret < 0)
@ -354,7 +354,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
usage_with_options(probe_usage, options);
}
ret = show_line_range(&params.line_range, params.target_module);
ret = show_line_range(&params.line_range, params.target);
if (ret < 0)
pr_err(" Error: Failed to show lines. (%d)\n", ret);
return ret;
@ -371,7 +371,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
ret = show_available_vars(params.events, params.nevents,
params.max_probe_points,
params.target_module,
params.target,
params.filter,
params.show_ext_vars);
strfilter__delete(params.filter);
@ -393,7 +393,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __used)
if (params.nevents) {
ret = add_perf_probe_events(params.events, params.nevents,
params.max_probe_points,
params.target_module,
params.target,
params.force_add);
if (ret < 0) {
pr_err(" Error: Failed to add events. (%d)\n", ret);

28
tools/perf/builtin-record.c
View File

@ -386,7 +386,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
{
struct stat st;
int flags;
int err, output;
int err, output, feat;
unsigned long waking = 0;
const bool forks = argc > 0;
struct machine *machine;
@ -453,8 +453,14 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
rec->session = session;
if (!rec->no_buildid)
perf_header__set_feat(&session->header, HEADER_BUILD_ID);
for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
perf_header__set_feat(&session->header, feat);
if (rec->no_buildid)
perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
if (!have_tracepoints(&evsel_list->entries))
perf_header__clear_feat(&session->header, HEADER_TRACE_INFO);
if (!rec->file_new) {
err = perf_session__read_header(session, output);
@ -462,22 +468,6 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
goto out_delete_session;
}
if (have_tracepoints(&evsel_list->entries))
perf_header__set_feat(&session->header, HEADER_TRACE_INFO);
perf_header__set_feat(&session->header, HEADER_HOSTNAME);
perf_header__set_feat(&session->header, HEADER_OSRELEASE);
perf_header__set_feat(&session->header, HEADER_ARCH);
perf_header__set_feat(&session->header, HEADER_CPUDESC);
perf_header__set_feat(&session->header, HEADER_NRCPUS);
perf_header__set_feat(&session->header, HEADER_EVENT_DESC);
perf_header__set_feat(&session->header, HEADER_CMDLINE);
perf_header__set_feat(&session->header, HEADER_VERSION);
perf_header__set_feat(&session->header, HEADER_CPU_TOPOLOGY);
perf_header__set_feat(&session->header, HEADER_TOTAL_MEM);
perf_header__set_feat(&session->header, HEADER_NUMA_TOPOLOGY);
perf_header__set_feat(&session->header, HEADER_CPUID);
if (forks) {
err = perf_evlist__prepare_workload(evsel_list, opts, argv);
if (err < 0) {

10
tools/perf/builtin-stat.c
View File

@ -576,6 +576,8 @@ static void nsec_printout(int cpu, struct perf_evsel *evsel, double avg)
if (perf_evsel__match(evsel, SOFTWARE, SW_TASK_CLOCK))
fprintf(output, " # %8.3f CPUs utilized ",
avg / avg_stats(&walltime_nsecs_stats));
else
fprintf(output, " ");
}
/* used for get_ratio_color() */
@ -844,12 +846,18 @@ static void abs_printout(int cpu, struct perf_evsel *evsel, double avg)
fprintf(output, " # %8.3f GHz ", ratio);
} else if (runtime_nsecs_stats[cpu].n != 0) {
char unit = 'M';
total = avg_stats(&runtime_nsecs_stats[cpu]);
if (total)
ratio = 1000.0 * avg / total;
if (ratio < 0.001) {
ratio *= 1000;
unit = 'K';
}
fprintf(output, " # %8.3f M/sec ", ratio);
fprintf(output, " # %8.3f %c/sec ", ratio, unit);
} else {
fprintf(output, " ");
}

2
tools/perf/util/event.c
View File

@ -554,7 +554,7 @@ static int perf_event__process_kernel_mmap(struct perf_tool *tool __used,
is_kernel_mmap = memcmp(event->mmap.filename,
kmmap_prefix,
strlen(kmmap_prefix)) == 0;
strlen(kmmap_prefix) - 1) == 0;
if (event->mmap.filename[0] == '/' ||
(!is_kernel_mmap && event->mmap.filename[0] == '[')) {

6
tools/perf/util/evlist.c
View File

@ -97,9 +97,9 @@ void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
++evlist->nr_entries;
}
static void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
struct list_head *list,
int nr_entries)
void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
struct list_head *list,
int nr_entries)
{
list_splice_tail(list, &evlist->entries);
evlist->nr_entries += nr_entries;

5
tools/perf/util/evlist.h
View File

@ -117,4 +117,9 @@ u16 perf_evlist__id_hdr_size(const struct perf_evlist *evlist);
bool perf_evlist__valid_sample_type(const struct perf_evlist *evlist);
bool perf_evlist__valid_sample_id_all(const struct perf_evlist *evlist);
void perf_evlist__splice_list_tail(struct perf_evlist *evlist,
struct list_head *list,
int nr_entries);
#endif /* __PERF_EVLIST_H */

1
tools/perf/util/evsel.c
View File

@ -463,6 +463,7 @@ int perf_event__parse_sample(const union perf_event *event, u64 type,
memset(data, 0, sizeof(*data));
data->cpu = data->pid = data->tid = -1;
data->stream_id = data->id = data->time = -1ULL;
data->period = 1;
if (event->header.type != PERF_RECORD_SAMPLE) {
if (!sample_id_all)

1
tools/perf/util/header.h
View File

@ -11,6 +11,7 @@
enum {
HEADER_RESERVED = 0, /* always cleared */
HEADER_FIRST_FEATURE = 1,
HEADER_TRACE_INFO = 1,
HEADER_BUILD_ID,

26
tools/perf/util/probe-event.c
View File

@ -273,10 +273,10 @@ static int add_module_to_probe_trace_events(struct probe_trace_event *tevs,
/* Try to find perf_probe_event with debuginfo */
static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
struct probe_trace_event **tevs,
int max_tevs, const char *module)
int max_tevs, const char *target)
{
bool need_dwarf = perf_probe_event_need_dwarf(pev);
struct debuginfo *dinfo = open_debuginfo(module);
struct debuginfo *dinfo = open_debuginfo(target);
int ntevs, ret = 0;
if (!dinfo) {
@ -295,9 +295,9 @@ static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
if (ntevs > 0) { /* Succeeded to find trace events */
pr_debug("find %d probe_trace_events.\n", ntevs);
if (module)
if (target)
ret = add_module_to_probe_trace_events(*tevs, ntevs,
module);
target);
return ret < 0 ? ret : ntevs;
}
@ -1796,14 +1796,14 @@ static int __add_probe_trace_events(struct perf_probe_event *pev,
static int convert_to_probe_trace_events(struct perf_probe_event *pev,
struct probe_trace_event **tevs,
int max_tevs, const char *module)
int max_tevs, const char *target)
{
struct symbol *sym;
int ret = 0, i;
struct probe_trace_event *tev;
/* Convert perf_probe_event with debuginfo */
ret = try_to_find_probe_trace_events(pev, tevs, max_tevs, module);
ret = try_to_find_probe_trace_events(pev, tevs, max_tevs, target);
if (ret != 0)
return ret; /* Found in debuginfo or got an error */
@ -1819,8 +1819,8 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
goto error;
}
if (module) {
tev->point.module = strdup(module);
if (target) {
tev->point.module = strdup(target);
if (tev->point.module == NULL) {
ret = -ENOMEM;
goto error;
@ -1884,7 +1884,7 @@ struct __event_package {
};
int add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
int max_tevs, const char *module, bool force_add)
int max_tevs, const char *target, bool force_add)
{
int i, j, ret;
struct __event_package *pkgs;
@ -1907,7 +1907,7 @@ int add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
ret = convert_to_probe_trace_events(pkgs[i].pev,
&pkgs[i].tevs,
max_tevs,
module);
target);
if (ret < 0)
goto end;
pkgs[i].ntevs = ret;
@ -2063,7 +2063,7 @@ static int filter_available_functions(struct map *map __unused,
return 1;
}
int show_available_funcs(const char *module, struct strfilter *_filter)
int show_available_funcs(const char *target, struct strfilter *_filter)
{
struct map *map;
int ret;
@ -2074,9 +2074,9 @@ int show_available_funcs(const char *module, struct strfilter *_filter)
if (ret < 0)
return ret;
map = kernel_get_module_map(module);
map = kernel_get_module_map(target);
if (!map) {
pr_err("Failed to find %s map.\n", (module) ? : "kernel");
pr_err("Failed to find %s map.\n", (target) ? : "kernel");
return -EINVAL;
}
available_func_filter = _filter;