diff options
Diffstat (limited to 'arch/x86/xen/multicalls.c')
| -rw-r--r-- | arch/x86/xen/multicalls.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/x86/xen/multicalls.c b/arch/x86/xen/multicalls.c index c738644b543..8bff7e7c290 100644 --- a/arch/x86/xen/multicalls.c +++ b/arch/x86/xen/multicalls.c @@ -39,6 +39,7 @@ struct mc_buffer { struct multicall_entry entries[MC_BATCH]; #if MC_DEBUG struct multicall_entry debug[MC_BATCH]; + void *caller[MC_BATCH]; #endif unsigned char args[MC_ARGS]; struct callback { @@ -154,11 +155,12 @@ void xen_mc_flush(void) ret, smp_processor_id()); dump_stack(); for (i = 0; i < b->mcidx; i++) { - printk(KERN_DEBUG " call %2d/%d: op=%lu arg=[%lx] result=%ld\n", + printk(KERN_DEBUG " call %2d/%d: op=%lu arg=[%lx] result=%ld\t%pF\n", i+1, b->mcidx, b->debug[i].op, b->debug[i].args[0], - b->entries[i].result); + b->entries[i].result, + b->caller[i]); } } #endif @@ -168,8 +170,6 @@ void xen_mc_flush(void) } else BUG_ON(b->argidx != 0); - local_irq_restore(flags); - for (i = 0; i < b->cbidx; i++) { struct callback *cb = &b->callbacks[i]; @@ -177,7 +177,9 @@ void xen_mc_flush(void) } b->cbidx = 0; - BUG_ON(ret); + local_irq_restore(flags); + + WARN_ON(ret); } struct multicall_space __xen_mc_entry(size_t args) @@ -197,6 +199,9 @@ struct multicall_space __xen_mc_entry(size_t args) } ret.mc = &b->entries[b->mcidx]; +#ifdef MC_DEBUG + b->caller[b->mcidx] = __builtin_return_address(0); +#endif b->mcidx++; ret.args = &b->args[argidx]; b->argidx = argidx + args; |