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linux/arch/mips/kernel
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Maksim Rayskiy 6667deb69e MIPS: Move idle task creation to work queue 
To avoid forking usermode thread when creating an idle task, move fork_idle
to a work queue.

If kernel starts with maxcpus= option which does not bring all available
cpus online at boot time, idle tasks for offline cpus are not created. If
later offline cpus are hotplugged through sysfs, __cpu_up is called in
the context of the user task, and fork_idle copies its non-zero mm
pointer.  This causes BUG() in per_cpu_trap_init.

This also avoids issues with resource limits of the CPU writing to sysfs,
containers, maybe others.

Signed-off-by: Maksim Rayskiy <mrayskiy@broadcom.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2070/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-03-14 21:07:27 +01:00
..
cpufreq
MIPS: Use set_cpus_allowed_ptr
2010-05-21 21:31:14 +01:00
.gitignore
[MIPS] Ignore vmlinux.lds generated files
2008-08-26 09:10:27 +01:00
8250-platform.c
[MIPS] Put an end to <asm/serial.h>'s long and annyoing existence
2007-07-10 17:33:01 +01:00
asm-offsets.c
MIPS: Remove unused task_struct.trap_no field.
2010-08-05 13:26:30 +01:00
binfmt_elfn32.c
remove div_long_long_rem
2008-05-01 08:03:58 -07:00
binfmt_elfo32.c
MIPS: 64-bit: Fix o32 core dump
2009-07-03 15:45:27 +01:00
branch.c
MIPS: Sanitize restart logics
2010-10-18 16:59:02 +01:00
cevt-bcm1480.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
cevt-ds1287.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
cevt-gt641xx.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
cevt-r4k.c
MIPS: Fix CP0 COUNTER clockevent race
2010-12-16 18:10:58 +00:00
cevt-sb1250.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
cevt-smtc.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
cevt-txx9.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
cpu-bugs64.c
MIPS: uasm: Add option to export uasm API.
2010-08-05 13:26:21 +01:00
cpu-probe.c
MIPS: Probe for presence of KScratch registers.
2011-01-18 19:30:22 +01:00
csrc-bcm1480.c
clocksource: pass clocksource to read() callback
2009-04-21 13:41:47 -07:00
csrc-ioasic.c
Update Yoichi Yuasa's e-mail address
2009-07-03 15:45:29 +01:00
csrc-powertv.c
MIPS: PowerTV: Base files for Cisco PowerTV platform
2009-12-17 01:57:17 +00:00
csrc-r4k.c
clocksource: pass clocksource to read() callback
2009-04-21 13:41:47 -07:00
csrc-sb1250.c
clocksource: pass clocksource to read() callback
2009-04-21 13:41:47 -07:00
early_printk.c
[MIPS] fix sparse warning about setup_early_printk()
2008-07-15 18:44:29 +01:00
entry.S
[MIPS] SMTC: Close tiny holes in the SMTC IPI replay system.
2008-10-03 17:58:58 +01:00
ftrace.c
MIPS, Tracing: Fix set_graph_function of function graph tracer
2011-03-14 21:07:24 +01:00
genex.S
MIPS: Read watch registers with interrupts disabled.
2009-01-30 21:32:58 +00:00
gpio_txx9.c
[MIPS] txx9: Make gpio_txx9 entirely spinlock-safe
2008-07-15 18:44:34 +01:00
head.S
MIPS: Avoid potential hazard on Context register
2009-11-02 12:00:07 +01:00
i8253.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
i8259.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
init_task.c
Use new __init_task_data macro in arch init_task.c files.
2009-09-21 06:27:08 +02:00
irq_cpu.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
irq_txx9.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
irq-gic.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
irq-gt641xx.c
MIPS: GT641xx: Convert IRQ controller lock to raw spinlock.
2010-02-27 12:53:31 +01:00
irq-msc01.c
MIPS: Enable GENERIC_HARDIRQS_NO__DO_IRQ for all platforms
2009-03-30 14:49:44 +02:00
irq-rm7000.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
irq-rm9000.c
MIPS: Add missing #inclusions of <linux/irq.h>
2010-10-07 14:08:54 +01:00
irq.c
MIPS: IRQ: Add stackoverflow detection
2010-10-29 19:08:27 +01:00
jump_label.c
MIPS: jump label: Add MIPS support.
2011-01-18 19:30:24 +01:00
kgdb.c
MIPS: Fix a typo.
2010-10-04 18:33:54 +01:00
kprobes.c
MIPS: kprobe: Add support.
2010-08-05 13:26:29 +01:00
kspd.c
MIPS: kspd: Adjust confusing if indentation
2010-10-04 18:33:54 +01:00
linux32.c
MIPS: compat: Don't clobber personality bits in 32-bit sys_personality().
2010-12-16 18:10:54 +00:00
machine_kexec.c
[MIPS] Unconditionally writeback and invalidate caches on kexec.
2007-08-27 02:16:59 +01:00
Makefile
MIPS: jump label: Add MIPS support.
2011-01-18 19:30:24 +01:00
mcount.S
MIPS: tracing: Fix the indentation of mcount.S
2010-08-05 13:26:06 +01:00
mips_ksyms.c
MIPS: Tracing: Add static function tracer support for MIPS
2009-12-17 01:57:21 +00:00
mips_machine.c
MIPS: Add generic support for multiple machines within a single kernel
2011-01-18 19:30:21 +01:00
mips-mt-fpaff.c
MIPS: MT: Fix build error iFPU affinity code
2010-10-25 08:12:27 -07:00
mips-mt.c
MIPS: Remove useless zero initializations.
2009-09-17 20:07:51 +02:00
module.c
MIPS: jump label: Add MIPS support.
2011-01-18 19:30:24 +01:00
octeon_switch.S
MIPS: Nuke trailing blank lines
2010-02-27 12:53:14 +01:00
perf_event_mipsxx.c
MIPS, Perf-events: Work with the new PMU interface
2011-03-14 21:07:26 +01:00
perf_event.c
MIPS, Perf-events: Use unsigned delta for right shift in event update
2011-03-14 21:07:27 +01:00
proc.c
MIPS: Probe for presence of KScratch registers.
2011-01-18 19:30:22 +01:00
process.c
MIPS: Don't stomp on caller's ->regs[2] in copy_thread()
2010-12-16 18:10:52 +00:00
prom.c
dt/flattree: Return virtual address from early_init_dt_alloc_memory_arch()
2011-01-15 22:01:58 -07:00
ptrace32.c
headers: smp_lock.h redux
2009-07-12 12:22:34 -07:00
ptrace.c
ptrace: cleanup arch_ptrace() on MIPS
2010-10-27 18:03:11 -07:00
r4k_fpu.S
[MIPS] Check FCSR for pending interrupts, alternative version
2007-03-17 01:03:25 +00:00
r4k_switch.S
MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file.
2009-09-17 20:07:49 +02:00
r2300_fpu.S
…
r2300_switch.S
MIPS: Consolidate all CONFIG_CPU_HAS_LLSC use in a single C file.
2009-09-17 20:07:49 +02:00
r6000_fpu.S
…
relocate_kernel.S
[MIPS] Kexec: Fix several 64-bit bugs.
2007-07-31 21:35:36 +01:00
reset.c
…
rtlx.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
scall32-o32.S
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
2010-10-18 13:10:36 -07:00
scall64-64.S
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
2010-10-18 13:10:36 -07:00
scall64-n32.S
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
2010-10-20 13:18:21 -07:00
scall64-o32.S
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus
2010-10-20 13:18:21 -07:00
setup.c
MIPS: Implement __read_mostly
2011-01-18 19:30:28 +01:00
signal32.c
MIPS: Fix GCC-4.6 'set but not used' warning in signal*.c
2011-03-14 21:07:25 +01:00
signal_n32.c
MIPS: do_sigaltstack() expects userland pointers
2010-10-18 16:59:03 +01:00
signal-common.h
MIPS: Move signal trampolines off of the stack.
2010-04-12 17:26:15 +01:00
signal.c
MIPS: Fix GCC-4.6 'set but not used' warning in signal*.c
2011-03-14 21:07:25 +01:00
smp-cmp.c
cpumask: Use accessors for cpu_*_mask: mips
2009-09-24 09:34:48 +09:30
smp-mt.c
MIPS: MT: Fix typo in comment.
2010-12-16 18:11:00 +00:00
smp-up.c
cpumask: arch_send_call_function_ipi_mask: mips
2009-09-24 09:34:45 +09:30
smp.c
MIPS: Move idle task creation to work queue
2011-03-14 21:07:27 +01:00
smtc-asm.S
[MIPS] SMTC: Don't set and restore irqregs ptr from self_ipi.
2007-06-11 18:20:53 +01:00
smtc-proc.c
[MIPS] SMP: Call platform methods via ops structure.
2008-01-29 10:14:57 +00:00
smtc.c
Fix IRQ flag handling naming
2010-10-07 14:08:55 +01:00
spinlock_test.c
MIPS: Crazy spinlock speed test.
2010-02-27 12:53:42 +01:00
spram.c
MIPS: SPRAM: Clean up support code a little
2009-11-02 12:00:05 +01:00
stacktrace.c
MIPS: Eleminate filenames from comments
2009-08-03 17:52:40 +01:00
sync-r4k.c
MIPS: CMP: Update sync-r4k for current kernel
2009-07-03 15:45:27 +01:00
syscall.c
MIPS: Remove unused code from arch/mips/kernel/syscall.c
2011-03-14 21:07:26 +01:00
time.c
mips: Use generic mult/shift factor calculation for clocks
2009-11-13 20:46:24 +01:00
topology.c
MIPS: Add arch generic CPU hotplug
2009-06-24 18:34:40 +01:00
traps.c
MIPS: Use C0_KScratch (if present) to hold PGD pointer.
2011-01-18 19:30:22 +01:00
unaligned.c
MIPS: add support for software performance events
2010-10-29 19:08:48 +01:00
vdso.c
MIPS: Make init_vdso a subsys_initcall.
2010-07-26 19:08:16 +01:00
vmlinux.lds.S
MIPS: Add generic support for multiple machines within a single kernel
2011-01-18 19:30:21 +01:00
vpe.c
MIPS: Replace deprecated spinlock initialization
2011-03-14 21:07:24 +01:00
watch.c
MIPS: Add HARDWARE_WATCHPOINTS definitions and support code.
2008-10-11 16:18:56 +01:00