diff options
| author | Tejun Heo <tj@kernel.org> | 2012-04-01 12:30:01 -0700 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2012-04-01 12:55:00 -0700 |
| commit | 959d851caa48829eb85cb85aa949fd6b4c5d5bc6 (patch) | |
| tree | 3ba9c94ec346275fb44c4f0d1cd2537cdff8d811 /arch/arm/kernel/machine_kexec.c | |
| parent | a5567932fc926739e29e98487128080f40c61710 (diff) | |
| parent | 48ddbe194623ae089cc0576e60363f2d2e85662a (diff) | |
Merge branch 'for-3.5' of ../cgroup into block/for-3.5/core-merged
cgroup/for-3.5 contains the following changes which blk-cgroup needs
to proceed with the on-going cleanup.
* Dynamic addition and removal of cftypes to make config/stat file
handling modular for policies.
* cgroup removal update to not wait for css references to drain to fix
blkcg removal hang caused by cfq caching cfqgs.
Pull in cgroup/for-3.5 into block/for-3.5/core. This causes the
following conflicts in block/blk-cgroup.c.
* 761b3ef50e "cgroup: remove cgroup_subsys argument from callbacks"
conflicts with blkiocg_pre_destroy() addition and blkiocg_attach()
removal. Resolved by removing @subsys from all subsys methods.
* 676f7c8f84 "cgroup: relocate cftype and cgroup_subsys definitions in
controllers" conflicts with ->pre_destroy() and ->attach() updates
and removal of modular config. Resolved by dropping forward
declarations of the methods and applying updates to the relocated
blkio_subsys.
* 4baf6e3325 "cgroup: convert all non-memcg controllers to the new
cftype interface" builds upon the previous item. Resolved by adding
->base_cftypes to the relocated blkio_subsys.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'arch/arm/kernel/machine_kexec.c')
| -rw-r--r-- | arch/arm/kernel/machine_kexec.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c index 764bd456d84..dfcdb9f7c12 100644 --- a/arch/arm/kernel/machine_kexec.c +++ b/arch/arm/kernel/machine_kexec.c @@ -7,12 +7,13 @@ #include <linux/delay.h> #include <linux/reboot.h> #include <linux/io.h> +#include <linux/irq.h> #include <asm/pgtable.h> #include <asm/pgalloc.h> #include <asm/mmu_context.h> #include <asm/cacheflush.h> #include <asm/mach-types.h> -#include <asm/system.h> +#include <asm/system_misc.h> extern const unsigned char relocate_new_kernel[]; extern const unsigned int relocate_new_kernel_size; @@ -53,6 +54,29 @@ void machine_crash_nonpanic_core(void *unused) cpu_relax(); } +static void machine_kexec_mask_interrupts(void) +{ + unsigned int i; + struct irq_desc *desc; + + for_each_irq_desc(i, desc) { + struct irq_chip *chip; + + chip = irq_desc_get_chip(desc); + if (!chip) + continue; + + if (chip->irq_eoi && irqd_irq_inprogress(&desc->irq_data)) + chip->irq_eoi(&desc->irq_data); + + if (chip->irq_mask) + chip->irq_mask(&desc->irq_data); + + if (chip->irq_disable && !irqd_irq_disabled(&desc->irq_data)) + chip->irq_disable(&desc->irq_data); + } +} + void machine_crash_shutdown(struct pt_regs *regs) { unsigned long msecs; @@ -70,6 +94,7 @@ void machine_crash_shutdown(struct pt_regs *regs) printk(KERN_WARNING "Non-crashing CPUs did not react to IPI\n"); crash_save_cpu(regs, smp_processor_id()); + machine_kexec_mask_interrupts(); printk(KERN_INFO "Loading crashdump kernel...\n"); } |