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Re: [Qemu-devel] [PATCH 2/8] exec: move rcu_read_lock/unlock to address_


From: Jan Kiszka
Subject: Re: [Qemu-devel] [PATCH 2/8] exec: move rcu_read_lock/unlock to address_space_translate callers
Date: Thu, 19 Mar 2015 15:55:31 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666

On 2015-03-19 14:27, Jan Kiszka wrote:
> On 2015-03-18 14:21, Paolo Bonzini wrote:
>> @@ -2591,9 +2596,12 @@ void *address_space_map(AddressSpace *as,
>>      }
>>  
>>      l = len;
>> +    rcu_read_lock();
>>      mr = address_space_translate(as, addr, &xlat, &l, is_write);
>> +
>>      if (!memory_access_is_direct(mr, is_write)) {
>>          if (atomic_xchg(&bounce.in_use, true)) {
> 
> Doesn't apply due to differences in the line above.
> 
> What is this patch based on? Do you have a public branch where I can
> find the series and its dependencies?

Think I found the series:
http://thread.gmane.org/gmane.comp.emulators.qemu/326076. At least it
builds and runs.

Jan

-- 
Siemens AG, Corporate Technology, CT RTC ITP SES-DE
Corporate Competence Center Embedded Linux



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