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| author | David S. Miller <davem@davemloft.net> | 2011-01-24 22:09:35 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-01-24 22:09:35 (GMT) |
| commit | 5bdc22a56549e7983c6b443298672641952ea035 (patch) | |
| tree | fbfd4e7453e4fd23dfef826d4610ed2aae47b36c /init/main.c | |
| parent | b6f4098897f30b7ea90a1c1edf35e9b20a9d828a (diff) | |
| parent | e92427b289d252cfbd4cb5282d92f4ce1a5bb1fb (diff) | |
| download | linux-fsl-qoriq-5bdc22a56549e7983c6b443298672641952ea035.tar.xz | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
net/sched/sch_hfsc.c
net/sched/sch_htb.c
net/sched/sch_tbf.c
Diffstat (limited to 'init/main.c')
| -rw-r--r-- | init/main.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/init/main.c b/init/main.c index 00799c1..33c37c3 100644 --- a/init/main.c +++ b/init/main.c @@ -96,6 +96,15 @@ static inline void mark_rodata_ro(void) { } extern void tc_init(void); #endif +/* + * Debug helper: via this flag we know that we are in 'early bootup code' + * where only the boot processor is running with IRQ disabled. This means + * two things - IRQ must not be enabled before the flag is cleared and some + * operations which are not allowed with IRQ disabled are allowed while the + * flag is set. + */ +bool early_boot_irqs_disabled __read_mostly; + enum system_states system_state __read_mostly; EXPORT_SYMBOL(system_state); @@ -554,7 +563,7 @@ asmlinkage void __init start_kernel(void) cgroup_init_early(); local_irq_disable(); - early_boot_irqs_off(); + early_boot_irqs_disabled = true; /* * Interrupts are still disabled. Do necessary setups, then @@ -621,7 +630,7 @@ asmlinkage void __init start_kernel(void) if (!irqs_disabled()) printk(KERN_CRIT "start_kernel(): bug: interrupts were " "enabled early\n"); - early_boot_irqs_on(); + early_boot_irqs_disabled = false; local_irq_enable(); /* Interrupts are enabled now so all GFP allocations are safe. */ |