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

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.gitignore

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8250-platform.c

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asm-offsets.c

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binfmt_elfn32.c

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binfmt_elfo32.c

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branch.c

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cevt-bcm1480.c

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cevt-ds1287.c

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cevt-gt641xx.c

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cevt-r4k.c

MIPS: Fix CP0 COUNTER clockevent race

2010-12-16 18:10:58 +00:00

cevt-sb1250.c

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cevt-smtc.c

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cevt-txx9.c

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cpu-bugs64.c

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cpu-probe.c

MIPS: Probe for presence of KScratch registers.

2011-01-18 19:30:22 +01:00

csrc-bcm1480.c

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csrc-ioasic.c

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csrc-powertv.c

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csrc-r4k.c

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csrc-sb1250.c

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early_printk.c

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entry.S

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ftrace.c

MIPS, Tracing: Fix set_graph_function of function graph tracer

2011-03-14 21:07:24 +01:00

genex.S

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gpio_txx9.c

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head.S

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i8253.c

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i8259.c

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init_task.c

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irq_cpu.c

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irq_txx9.c

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irq-gic.c

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irq-gt641xx.c

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irq-msc01.c

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irq-rm7000.c

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irq-rm9000.c

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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

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kprobes.c

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kspd.c

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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

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Makefile

MIPS: jump label: Add MIPS support.

2011-01-18 19:30:24 +01:00

mcount.S

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mips_ksyms.c

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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

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module.c

MIPS: jump label: Add MIPS support.

2011-01-18 19:30:24 +01:00

octeon_switch.S

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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

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ptrace.c

ptrace: cleanup arch_ptrace() on MIPS

2010-10-27 18:03:11 -07:00

r4k_fpu.S

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r4k_switch.S

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r2300_fpu.S

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r2300_switch.S

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r6000_fpu.S

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relocate_kernel.S

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reset.c

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rtlx.c

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scall32-o32.S

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scall64-64.S

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scall64-n32.S

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scall64-o32.S

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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

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signal-common.h

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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

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smp-mt.c

MIPS: MT: Fix typo in comment.

2010-12-16 18:11:00 +00:00

smp-up.c

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smp.c

MIPS: Move idle task creation to work queue

2011-03-14 21:07:27 +01:00

smtc-asm.S

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smtc-proc.c

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smtc.c

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spinlock_test.c

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spram.c

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stacktrace.c

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sync-r4k.c

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syscall.c

MIPS: Remove unused code from arch/mips/kernel/syscall.c

2011-03-14 21:07:26 +01:00

time.c

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topology.c

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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

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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

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