ISAPNP ISA PnP code is enabled.
ISDN Appropriate ISDN support is enabled.
JOY Appropriate joystick support is enabled.
+ KMEMTRACE kmemtrace is enabled.
LIBATA Libata driver is enabled
LP Printer support is enabled.
LOOP Loopback device support is enabled.
SUSPEND System suspend states are enabled.
FTRACE Function tracing enabled.
TS Appropriate touchscreen support is enabled.
+ UMS USB Mass Storage support is enabled.
USB USB support is enabled.
USBHID USB Human Interface Device support is enabled.
V4L Video For Linux support is enabled.
ht -- run only enough ACPI to enable Hyper Threading
strict -- Be less tolerant of platforms that are not
strictly ACPI specification compliant.
+ rsdt -- prefer RSDT over (default) XSDT
See also Documentation/power/pm.txt, pci=noacpi
default: 0
acpi_sleep= [HW,ACPI] Sleep options
- Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig, old_ordering }
- See Documentation/power/video.txt for s3_bios and s3_mode.
+ Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig,
+ old_ordering, s4_nonvs }
+ See Documentation/power/video.txt for information on
+ s3_bios and s3_mode.
s3_beep is for debugging; it makes the PC's speaker beep
as soon as the kernel's real-mode entry point is called.
s4_nohwsig prevents ACPI hardware signature from being
used during resume from hibernation.
old_ordering causes the ACPI 1.0 ordering of the _PTS
- control method, wrt putting devices into low power
- states, to be enforced (the ACPI 2.0 ordering of _PTS is
- used by default).
+ control method, with respect to putting devices into
+ low power states, to be enforced (the ACPI 2.0 ordering
+ of _PTS is used by default).
+ s4_nonvs prevents the kernel from saving/restoring the
+ ACPI NVS memory during hibernation.
acpi_sci= [HW,ACPI] ACPI System Control Interrupt trigger mode
Format: { level | edge | high | low }
acpi_skip_timer_override [HW,ACPI]
Recognize and ignore IRQ0/pin2 Interrupt Override.
For broken nForce2 BIOS resulting in XT-PIC timer.
- acpi_use_timer_override [HW,ACPI}
+ acpi_use_timer_override [HW,ACPI]
Use timer override. For some broken Nvidia NF5 boards
that require a timer override, but don't have
HPET
clearcpuid=BITNUM [X86]
Disable CPUID feature X for the kernel. See
- include/asm-x86/cpufeature.h for the valid bit numbers.
- Note the Linux specific bits are not necessarily
+ arch/x86/include/asm/cpufeature.h for the valid bit
+ numbers. Note the Linux specific bits are not necessarily
stable over kernel options, but the vendor specific
ones should be.
Also note that user programs calling CPUID directly
not work reliably with all consoles, but is known
to work with serial and VGA consoles.
+ coredump_filter=
+ [KNL] Change the default value for
+ /proc/<pid>/coredump_filter.
+ See also Documentation/filesystems/proc.txt.
+
cpcihp_generic= [HW,PCI] Generic port I/O CompactPCI driver
Format:
<first_slot>,<last_slot>,<port>,<enum_bit>[,<debug>]
hlt [BUGS=ARM,SH]
- hvc_iucv= [S390] Number of z/VM IUCV Hypervisor console (HVC)
- back-ends. Valid parameters: 0..8
+ hvc_iucv= [S390] Number of z/VM IUCV hypervisor console (HVC)
+ terminal devices. Valid values: 0..8
i8042.debug [HW] Toggle i8042 debug mode
i8042.direct [HW] Put keyboard port into non-translated mode
See Documentation/ide/ide.txt.
idle= [X86]
- Format: idle=poll or idle=mwait, idle=halt, idle=nomwait
- Poll forces a polling idle loop that can slightly improves the performance
- of waking up a idle CPU, but will use a lot of power and make the system
- run hot. Not recommended.
- idle=mwait. On systems which support MONITOR/MWAIT but the kernel chose
- to not use it because it doesn't save as much power as a normal idle
- loop use the MONITOR/MWAIT idle loop anyways. Performance should be the same
- as idle=poll.
- idle=halt. Halt is forced to be used for CPU idle.
+ Format: idle=poll, idle=mwait, idle=halt, idle=nomwait
+ Poll forces a polling idle loop that can slightly
+ improve the performance of waking up a idle CPU, but
+ will use a lot of power and make the system run hot.
+ Not recommended.
+ idle=mwait: On systems which support MONITOR/MWAIT but
+ the kernel chose to not use it because it doesn't save
+ as much power as a normal idle loop, use the
+ MONITOR/MWAIT idle loop anyways. Performance should be
+ the same as idle=poll.
+ idle=halt: Halt is forced to be used for CPU idle.
In such case C2/C3 won't be used again.
- idle=nomwait. Disable mwait for CPU C-states
+ idle=nomwait: Disable mwait for CPU C-states
ide-pci-generic.all-generic-ide [HW] (E)IDE subsystem
Claim all unknown PCI IDE storage controllers.
inttest= [IA64]
+ iomem= Disable strict checking of access to MMIO memory
+ strict regions from userspace.
+ relaxed
+
iommu= [x86]
off
force
use the HighMem zone if it exists, and the Normal
zone if it does not.
+ kmemtrace.enable= [KNL,KMEMTRACE] Format: { yes | no }
+ Controls whether kmemtrace is enabled
+ at boot-time.
+
+ kmemtrace.subbufs=n [KNL,KMEMTRACE] Overrides the number of
+ subbufs kmemtrace's relay channel has. Set this
+ higher than default (KMEMTRACE_N_SUBBUFS in code) if
+ you experience buffer overruns.
+
movablecore=nn[KMG] [KNL,X86-32,IA-64,PPC,X86-64] This parameter
is similar to kernelcore except it specifies the
amount of memory used for migratable allocations.
lapic [X86-32,APIC] Enable the local APIC even if BIOS
disabled it.
- lapic_timer_c2_ok [X86-32,x86-64,APIC] trust the local apic timer in
- C2 power state.
+ lapic_timer_c2_ok [X86-32,x86-64,APIC] trust the local apic timer
+ in C2 power state.
libata.dma= [LIBATA] DMA control
libata.dma=0 Disable all PATA and SATA DMA
If there are multiple matching configurations changing
the same attribute, the last one is used.
+ lmb=debug [KNL] Enable lmb debug messages.
+
load_ramdisk= [RAM] List of ramdisks to load from floppy
See Documentation/blockdev/ramdisk.txt.
nosoftlockup [KNL] Disable the soft-lockup detector.
+ noswapaccount [KNL] Disable accounting of swap in memory resource
+ controller. (See Documentation/controllers/memory.txt)
+
nosync [HW,M68K] Disables sync negotiation for all devices.
notsc [BUGS=X86-32] Disable Time Stamp Counter
nr_uarts= [SERIAL] maximum number of UARTs to be registered.
+ ohci1394_dma=early [HW] enable debugging via the ohci1394 driver.
+ See Documentation/debugging-via-ohci1394.txt for more
+ info.
+
olpc_ec_timeout= [OLPC] ms delay when issuing EC commands
Rather than timing out after 20 ms if an EC
command is not properly ACKed, override the length
autoconfiguration.
Ranges are in pairs (memory base and size).
- dynamic_printk
- Enables pr_debug()/dev_dbg() calls if
- CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled. These can also
- be switched on/off via <debugfs>/dynamic_printk/modules
+ dynamic_printk Enables pr_debug()/dev_dbg() calls if
+ CONFIG_DYNAMIC_PRINTK_DEBUG has been enabled.
+ These can also be switched on/off via
+ <debugfs>/dynamic_printk/modules
print-fatal-signals=
[KNL] debug: print fatal signals
reboot= [BUGS=X86-32,BUGS=ARM,BUGS=IA-64] Rebooting mode
Format: <reboot_mode>[,<reboot_mode2>[,...]]
- See arch/*/kernel/reboot.c or arch/*/kernel/process.c
+ See arch/*/kernel/reboot.c or arch/*/kernel/process.c
relax_domain_level=
[KNL, SMP] Set scheduler's default relax_domain_level.
thermal.psv= [HW,ACPI]
-1: disable all passive trip points
- <degrees C>: override all passive trip points to this value
+ <degrees C>: override all passive trip points to this
+ value
thermal.tzp= [HW,ACPI]
Specify global default ACPI thermal zone polling rate
usbhid.mousepoll=
[USBHID] The interval which mice are to be polled at.
+ usb-storage.delay_use=
+ [UMS] The delay in seconds before a new device is
+ scanned for Logical Units (default 5).
+
+ usb-storage.quirks=
+ [UMS] A list of quirks entries to supplement or
+ override the built-in unusual_devs list. List
+ entries are separated by commas. Each entry has
+ the form VID:PID:Flags where VID and PID are Vendor
+ and Product ID values (4-digit hex numbers) and
+ Flags is a set of characters, each corresponding
+ to a common usb-storage quirk flag as follows:
+ a = SANE_SENSE (collect more than 18 bytes
+ of sense data);
+ c = FIX_CAPACITY (decrease the reported
+ device capacity by one sector);
+ h = CAPACITY_HEURISTICS (decrease the
+ reported device capacity by one
+ sector if the number is odd);
+ i = IGNORE_DEVICE (don't bind to this
+ device);
+ l = NOT_LOCKABLE (don't try to lock and
+ unlock ejectable media);
+ m = MAX_SECTORS_64 (don't transfer more
+ than 64 sectors = 32 KB at a time);
+ o = CAPACITY_OK (accept the capacity
+ reported by the device);
+ r = IGNORE_RESIDUE (the device reports
+ bogus residue values);
+ s = SINGLE_LUN (the device has only one
+ Logical Unit);
+ w = NO_WP_DETECT (don't test whether the
+ medium is write-protected).
+ Example: quirks=0419:aaf5:rl,0421:0433:rc
+
add_efi_memmap [EFI; x86-32,X86-64] Include EFI memory map in
kernel's map of available physical RAM.
Format:
<irq>,<irq_mask>,<io>,<full_duplex>,<do_sound>,<lockup_hack>[,<irq2>[,<irq3>[,<irq4>]]]
- norandmaps Don't use address space randomization
- Equivalent to echo 0 > /proc/sys/kernel/randomize_va_space
+ norandmaps Don't use address space randomization. Equivalent to
+ echo 0 > /proc/sys/kernel/randomize_va_space
______________________________________________________________________
S: Maintained
ARM/TOSA MACHINE SUPPORT
- P: Dmitry Baryshkov
+ P: Dmitry Eremin-Solenikov
M: dbaryshkov@gmail.com
P: Dirk Opfer
M: dirk@opfer-online.de
BTTV VIDEO4LINUX DRIVER
P: Mauro Carvalho Chehab
M: mchehab@infradead.org
- M: v4l-dvb-maintainer@linuxtv.org
+ L: linux-media@vger.kernel.org
L: video4linux-list@redhat.com
W: http://linuxtv.org
- T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb.git
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
CAFE CMOS INTEGRATED CAMERA CONTROLLER DRIVER
P: Jonathan Corbet
M: corbet@lwn.net
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
CALGARY x86-64 IOMMU
CHECKPATCH
P: Andy Whitcroft
- M: apw@shadowen.org
- P: Randy Dunlap
- M: rdunlap@xenotime.net
- P: Joel Schopp
- M: jschopp@austin.ibm.com
+ M: apw@canonical.com
+ L: linux-kernel@vger.kernel.org
S: Supported
CISCO 10G ETHERNET DRIVER
M: hverkuil@xs4all.nl, awalls@radix.net
L: ivtv-devel@ivtvdriver.org
L: ivtv-users@ivtvdriver.org
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://linuxtv.org
S: Maintained
M: macro@linux-mips.org
S: Maintained
+ DELL LAPTOP DRIVER
+ P: Matthew Garrett
+ M: mjg59@srcf.ucam.org
+ S: Maintained
+
DELL LAPTOP SMM DRIVER
P: Massimo Dal Zotto
M: dz@debian.org
DVB SUBSYSTEM AND DRIVERS
P: LinuxTV.org Project
- M: v4l-dvb-maintainer@linuxtv.org
+ M: linux-media@vger.kernel.org
L: linux-dvb@linuxtv.org (subscription required)
W: http://linuxtv.org/
- T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb.git
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
DZ DECSTATION DZ11 SERIAL DRIVER
GSPCA FINEPIX SUBDRIVER
P: Frank Zago
M: frank@zago.net
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
GSPCA M5602 SUBDRIVER
P: Erik Andren
M: erik.andren@gmail.com
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
GSPCA PAC207 SONIXB SUBDRIVER
P: Hans de Goede
M: hdegoede@redhat.com
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
GSPCA T613 SUBDRIVER
P: Leandro Costantino
M: lcostantino@gmail.com
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
GSPCA USB WEBCAM DRIVER
P: Jean-Francois Moine
M: moinejf@free.fr
W: http://moinejf.free.fr
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
HARDWARE MONITORING
W: http://ipw2200.sourceforge.net
S: Supported
+ INTEL WIRELESS WIMAX CONNECTION 2400
+ P: Inaky Perez-Gonzalez
+ M: inaky.perez-gonzalez@intel.com
+ M: linux-wimax@intel.com
+ L: wimax@linuxwimax.org
+ S: Supported
+ W: http://linuxwimax.org
+
INTEL WIRELESS WIFI LINK (iwlwifi)
P: Zhu Yi
M: yi.zhu@intel.com
M: hverkuil@xs4all.nl
L: ivtv-devel@ivtvdriver.org
L: ivtv-users@ivtvdriver.org
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.ivtvdriver.org
S: Maintained
L: kgdb-bugreport@lists.sourceforge.net
S: Maintained
+KMEMTRACE
+P: Eduard - Gabriel Munteanu
+M: eduard.munteanu@linux360.ro
+L: linux-kernel@vger.kernel.org
+S: Maintained
+
KPROBES
P: Ananth N Mavinakayanahalli
M: ananth@in.ibm.com
P: Felipe Balbi
M: felipe.balbi@nokia.com
L: linux-usb@vger.kernel.org
+ T: git gitorious.org:/musb/mainline.git
S: Maintained
MYRICOM MYRI-10G 10GbE DRIVER (MYRI10GE)
OMNIVISION OV7670 SENSOR DRIVER
P: Jonathan Corbet
M: corbet@lwn.net
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
ONENAND FLASH DRIVER
L: cbe-oss-dev@ozlabs.org
S: Supported
+ PS3VRAM DRIVER
+ P: Jim Paris
+ M: jim@jtan.com
+ L: cbe-oss-dev@ozlabs.org
+ S: Maintained
+
PVRUSB2 VIDEO4LINUX DRIVER
P: Mike Isely
M: isely@pobox.com
L: pvrusb2@isely.net (subscribers-only)
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
W: http://www.isely.net/pvrusb2/
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
PXA2xx/PXA3xx SUPPORT
SAA7146 VIDEO4LINUX-2 DRIVER
P: Michael Hunold
M: michael@mihu.de
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.mihu.de/linux/saa7146
S: Maintained
SOC-CAMERA V4L2 SUBSYSTEM
P: Guennadi Liakhovetski
M: g.liakhovetski@gmx.de
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
SOEKRIS NET48XX LED SUPPORT
W: http://www.ibm.com/developerworks/power/cell/
S: Supported
+ SQUASHFS FILE SYSTEM
+ P: Phillip Lougher
+ M: phillip@lougher.demon.co.uk
+ L: squashfs-devel@lists.sourceforge.net (subscribers-only)
+ W: http://squashfs.org.uk
+ S: Maintained
+
SRM (Alpha) environment access
P: Jan-Benedict Glaw
M: jbglaw@lug-owl.de
S: Maintained
TRIVIAL PATCHES
- P: Jesper Juhl
+ P: Jiri Kosina
M: trivial@kernel.org
L: linux-kernel@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/jikos/trivial.git
S: Maintained
TTY LAYER
P: Luca Risolia
M: luca.risolia@studio.unibo.it
L: linux-usb@vger.kernel.org
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.linux-projects.org
S: Maintained
P: Luca Risolia
M: luca.risolia@studio.unibo.it
L: linux-usb@vger.kernel.org
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.linux-projects.org
S: Maintained
P: Laurent Pinchart
M: laurent.pinchart@skynet.be
L: linux-uvc-devel@lists.berlios.de (subscribers-only)
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://linux-uvc.berlios.de
S: Maintained
P: Luca Risolia
M: luca.risolia@studio.unibo.it
L: linux-usb@vger.kernel.org
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.linux-projects.org
S: Maintained
P: Luca Risolia
M: luca.risolia@studio.unibo.it
L: linux-usb@vger.kernel.org
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://www.linux-projects.org
S: Maintained
P: Antoine Jacquet
M: royale@zerezo.com
L: linux-usb@vger.kernel.org
- L: video4linux-list@redhat.com
+ L: linux-media@vger.kernel.org
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
W: http://royale.zerezo.com/zr364xx/
S: Maintained
VIDEO FOR LINUX (V4L)
P: Mauro Carvalho Chehab
M: mchehab@infradead.org
- M: v4l-dvb-maintainer@linuxtv.org
+ L: linux-media@vger.kernel.org
L: video4linux-list@redhat.com
W: http://linuxtv.org
- T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb.git
+ T: git kernel.org:/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
S: Maintained
VLAN (802.1Q)
L: linux-scsi@vger.kernel.org
S: Maintained
+ WIMAX STACK
+ P: Inaky Perez-Gonzalez
+ M: inaky.perez-gonzalez@intel.com
+ M: linux-wimax@intel.com
+ L: wimax@linuxwimax.org
+ S: Supported
+ W: http://linuxwimax.org
+
WIMEDIA LLC PROTOCOL (WLP) SUBSYSTEM
P: David Vrabel
M: david.vrabel@csr.com
}
static struct sysrq_key_op sysrq_loglevel_op = {
.handler = sysrq_handle_loglevel,
- .help_msg = "loglevel0-8",
+ .help_msg = "loglevel(0-9)",
.action_msg = "Changing Loglevel",
.enable_mask = SYSRQ_ENABLE_LOG,
};
static struct sysrq_key_op sysrq_showallcpus_op = {
.handler = sysrq_handle_showallcpus,
- .help_msg = "aLlcpus",
+ .help_msg = "show-backtrace-all-active-cpus(L)",
.action_msg = "Show backtrace of all active CPUs",
.enable_mask = SYSRQ_ENABLE_DUMP,
};
}
static struct sysrq_key_op sysrq_showregs_op = {
.handler = sysrq_handle_showregs,
- .help_msg = "showPc",
+ .help_msg = "show-registers(P)",
.action_msg = "Show Regs",
.enable_mask = SYSRQ_ENABLE_DUMP,
};
}
static struct sysrq_key_op sysrq_showstate_op = {
.handler = sysrq_handle_showstate,
- .help_msg = "showTasks",
+ .help_msg = "show-task-states(T)",
.action_msg = "Show State",
.enable_mask = SYSRQ_ENABLE_DUMP,
};
}
static struct sysrq_key_op sysrq_showstate_blocked_op = {
.handler = sysrq_handle_showstate_blocked,
- .help_msg = "shoW-blocked-tasks",
+ .help_msg = "show-blocked-tasks(W)",
.action_msg = "Show Blocked State",
.enable_mask = SYSRQ_ENABLE_DUMP,
};
}
static struct sysrq_key_op sysrq_ftrace_dump_op = {
.handler = sysrq_ftrace_dump,
- .help_msg = "dumpZ-ftrace-buffer",
+ .help_msg = "dump-ftrace-buffer(Z)",
.action_msg = "Dump ftrace buffer",
.enable_mask = SYSRQ_ENABLE_DUMP,
};
}
static struct sysrq_key_op sysrq_showmem_op = {
.handler = sysrq_handle_showmem,
- .help_msg = "showMem",
+ .help_msg = "show-memory-usage(M)",
.action_msg = "Show Memory",
.enable_mask = SYSRQ_ENABLE_DUMP,
};
}
static struct sysrq_key_op sysrq_term_op = {
.handler = sysrq_handle_term,
- .help_msg = "tErm",
+ .help_msg = "terminate-all-tasks(E)",
.action_msg = "Terminate All Tasks",
.enable_mask = SYSRQ_ENABLE_SIGNAL,
};
}
static struct sysrq_key_op sysrq_moom_op = {
.handler = sysrq_handle_moom,
- .help_msg = "Full",
+ .help_msg = "memory-full-oom-kill(F)",
.action_msg = "Manual OOM execution",
.enable_mask = SYSRQ_ENABLE_SIGNAL,
};
}
static struct sysrq_key_op sysrq_kill_op = {
.handler = sysrq_handle_kill,
- .help_msg = "kIll",
+ .help_msg = "kill-all-tasks(I)",
.action_msg = "Kill All Tasks",
.enable_mask = SYSRQ_ENABLE_SIGNAL,
};
}
static struct sysrq_key_op sysrq_unrt_op = {
.handler = sysrq_handle_unrt,
- .help_msg = "Nice",
+ .help_msg = "nice-all-RT-tasks(N)",
.action_msg = "Nice All RT Tasks",
.enable_mask = SYSRQ_ENABLE_RTNICE,
};
#include <linux/rmap.h>
#include <linux/mempolicy.h>
#include <linux/key.h>
- #include <linux/unwind.h>
#include <linux/buffer_head.h>
#include <linux/page_cgroup.h>
#include <linux/debug_locks.h>
#include <linux/signal.h>
#include <linux/idr.h>
#include <linux/ftrace.h>
+ #include <linux/async.h>
#include <trace/boot.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <asm/sections.h>
#include <asm/cacheflush.h>
+#include <trace/kmemtrace.h>
#ifdef CONFIG_X86_LOCAL_APIC
#include <asm/smp.h>
extern void time_init(void);
/* Default late time init is NULL. archs can override this later. */
- void (*late_time_init)(void);
+ void (*__initdata late_time_init)(void);
extern void softirq_init(void);
/* Untouched command line saved by arch-specific code. */
* gcc-3.4 accidentally inlines this function, so use noinline.
*/
- static void noinline __init_refok rest_init(void)
+ static noinline void __init_refok rest_init(void)
__releases(kernel_lock)
{
int pid;
* Need to run as early as possible, to initialize the
* lockdep hash:
*/
- unwind_init();
lockdep_init();
debug_objects_early_init();
cgroup_init_early();
setup_arch(&command_line);
mm_init_owner(&init_mm, &init_task);
setup_command_line(command_line);
- unwind_setup();
setup_per_cpu_areas();
setup_nr_cpu_ids();
smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
sched_clock_init();
profile_init();
if (!irqs_disabled())
- printk("start_kernel(): bug: interrupts were enabled early\n");
+ printk(KERN_CRIT "start_kernel(): bug: interrupts were "
+ "enabled early\n");
early_boot_irqs_on();
local_irq_enable();
enable_debug_pagealloc();
cpu_hotplug_init();
kmem_cache_init();
+ kmemtrace_init();
debug_objects_mem_init();
idr_init_cache();
setup_per_cpu_pageset();
rest_init();
}
- static int initcall_debug;
+ int initcall_debug;
core_param(initcall_debug, initcall_debug, bool, 0644);
int do_one_initcall(initcall_t fn)
/* This is a non __init function. Force it to be noinline otherwise gcc
* makes it inline to init() and it becomes part of init.text section
*/
- static int noinline init_post(void)
+ static noinline int init_post(void)
{
+ /* need to finish all async __init code before freeing the memory */
+ async_synchronize_full();
free_initmem();
unlock_kernel();
mark_rodata_ro();
#include <linux/slab.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
+#include <trace/kmemtrace.h>
#include <linux/cpu.h>
#include <linux/cpuset.h>
#include <linux/mempolicy.h>
void *kmem_cache_alloc(struct kmem_cache *s, gfp_t gfpflags)
{
- return slab_alloc(s, gfpflags, -1, _RET_IP_);
+ void *ret = slab_alloc(s, gfpflags, -1, _RET_IP_);
+
+ kmemtrace_mark_alloc(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
+ s->objsize, s->size, gfpflags);
+
+ return ret;
}
EXPORT_SYMBOL(kmem_cache_alloc);
+#ifdef CONFIG_KMEMTRACE
+void *kmem_cache_alloc_notrace(struct kmem_cache *s, gfp_t gfpflags)
+{
+ return slab_alloc(s, gfpflags, -1, _RET_IP_);
+}
+EXPORT_SYMBOL(kmem_cache_alloc_notrace);
+#endif
+
#ifdef CONFIG_NUMA
void *kmem_cache_alloc_node(struct kmem_cache *s, gfp_t gfpflags, int node)
{
- return slab_alloc(s, gfpflags, node, _RET_IP_);
+ void *ret = slab_alloc(s, gfpflags, node, _RET_IP_);
+
+ kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_CACHE, _RET_IP_, ret,
+ s->objsize, s->size, gfpflags, node);
+
+ return ret;
}
EXPORT_SYMBOL(kmem_cache_alloc_node);
#endif
+#ifdef CONFIG_KMEMTRACE
+void *kmem_cache_alloc_node_notrace(struct kmem_cache *s,
+ gfp_t gfpflags,
+ int node)
+{
+ return slab_alloc(s, gfpflags, node, _RET_IP_);
+}
+EXPORT_SYMBOL(kmem_cache_alloc_node_notrace);
+#endif
+
/*
* Slow patch handling. This may still be called frequently since objects
* have a longer lifetime than the cpu slabs in most processing loads.
page = virt_to_head_page(x);
slab_free(s, page, x, _RET_IP_);
+
+ kmemtrace_mark_free(KMEMTRACE_TYPE_CACHE, _RET_IP_, x);
}
EXPORT_SYMBOL(kmem_cache_free);
* Add some empty padding so that we can catch
* overwrites from earlier objects rather than let
* tracking information or the free pointer be
- * corrupted if an user writes before the start
+ * corrupted if a user writes before the start
* of the object.
*/
size += sizeof(void *);
void *__kmalloc(size_t size, gfp_t flags)
{
struct kmem_cache *s;
+ void *ret;
if (unlikely(size > PAGE_SIZE))
return kmalloc_large(size, flags);
if (unlikely(ZERO_OR_NULL_PTR(s)))
return s;
- return slab_alloc(s, flags, -1, _RET_IP_);
+ ret = slab_alloc(s, flags, -1, _RET_IP_);
+
+ kmemtrace_mark_alloc(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, ret,
+ size, s->size, flags);
+
+ return ret;
}
EXPORT_SYMBOL(__kmalloc);
void *__kmalloc_node(size_t size, gfp_t flags, int node)
{
struct kmem_cache *s;
+ void *ret;
- if (unlikely(size > PAGE_SIZE))
- return kmalloc_large_node(size, flags, node);
+ if (unlikely(size > PAGE_SIZE)) {
+ ret = kmalloc_large_node(size, flags, node);
+
+ kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC,
+ _RET_IP_, ret,
+ size, PAGE_SIZE << get_order(size),
+ flags, node);
+
+ return ret;
+ }
s = get_slab(size, flags);
if (unlikely(ZERO_OR_NULL_PTR(s)))
return s;
- return slab_alloc(s, flags, node, _RET_IP_);
+ ret = slab_alloc(s, flags, node, _RET_IP_);
+
+ kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, ret,
+ size, s->size, flags, node);
+
+ return ret;
}
EXPORT_SYMBOL(__kmalloc_node);
#endif
return;
}
slab_free(page->slab, page, object, _RET_IP_);
+
+ kmemtrace_mark_free(KMEMTRACE_TYPE_KMALLOC, _RET_IP_, x);
}
EXPORT_SYMBOL(kfree);
void *__kmalloc_track_caller(size_t size, gfp_t gfpflags, unsigned long caller)
{
struct kmem_cache *s;
+ void *ret;
if (unlikely(size > PAGE_SIZE))
return kmalloc_large(size, gfpflags);
if (unlikely(ZERO_OR_NULL_PTR(s)))
return s;
- return slab_alloc(s, gfpflags, -1, caller);
+ ret = slab_alloc(s, gfpflags, -1, caller);
+
+ /* Honor the call site pointer we recieved. */
+ kmemtrace_mark_alloc(KMEMTRACE_TYPE_KMALLOC, caller, ret, size,
+ s->size, gfpflags);
+
+ return ret;
}
void *__kmalloc_node_track_caller(size_t size, gfp_t gfpflags,
int node, unsigned long caller)
{
struct kmem_cache *s;
+ void *ret;
if (unlikely(size > PAGE_SIZE))
return kmalloc_large_node(size, gfpflags, node);
if (unlikely(ZERO_OR_NULL_PTR(s)))
return s;
- return slab_alloc(s, gfpflags, node, caller);
+ ret = slab_alloc(s, gfpflags, node, caller);
+
+ /* Honor the call site pointer we recieved. */
+ kmemtrace_mark_alloc_node(KMEMTRACE_TYPE_KMALLOC, caller, ret,
+ size, s->size, gfpflags, node);
+
+ return ret;
}
#ifdef CONFIG_SLUB_DEBUG
git://ftp.safe.ca / safe / jmp / linux-2.6 / commitdiff