On Sat, Jun 15, 2013 at 7:16 PM, Paolo Bonzini wrote:
> Il 15/06/2013 04:43, liu ping fan ha scritto:
>> On Sat, Jun 15, 2013 at 1:35 PM, Paolo Bonzini wrote:
>>> Il 13/06/2013 22:55, Liu Ping Fan ha scritto:
BH will be used outside big lock, so introduce lock to protect it.
Note that t
On Sat, Jun 15, 2013 at 11:44 PM, Paolo Bonzini wrote:
> Il 15/06/2013 07:16, Paolo Bonzini ha scritto:
>> ... I'm not sure that this works yet. I see two problems:
>> ctx->walking_bh needs to be accessed atomic, and while you are doing the
>> deletions somebody could come up and start a read. H
Il 15/06/2013 07:16, Paolo Bonzini ha scritto:
> ... I'm not sure that this works yet. I see two problems:
> ctx->walking_bh needs to be accessed atomic, and while you are doing the
> deletions somebody could come up and start a read. Havoc.
Hmm, are you just trying to protect aio_bh_poll from a
Il 15/06/2013 04:43, liu ping fan ha scritto:
> On Sat, Jun 15, 2013 at 1:35 PM, Paolo Bonzini wrote:
>> Il 13/06/2013 22:55, Liu Ping Fan ha scritto:
>>> BH will be used outside big lock, so introduce lock to protect it.
>>> Note that the lock only affects the writer and bh's callback does
>>> no
On Sat, Jun 15, 2013 at 1:35 PM, Paolo Bonzini wrote:
> Il 13/06/2013 22:55, Liu Ping Fan ha scritto:
>> BH will be used outside big lock, so introduce lock to protect it.
>> Note that the lock only affects the writer and bh's callback does
>> not take this extra lock.
>>
>> Signed-off-by: Liu Pin
Il 13/06/2013 22:55, Liu Ping Fan ha scritto:
> BH will be used outside big lock, so introduce lock to protect it.
> Note that the lock only affects the writer and bh's callback does
> not take this extra lock.
>
> Signed-off-by: Liu Ping Fan
> ---
> async.c | 10 +-
> includ
BH will be used outside big lock, so introduce lock to protect it.
Note that the lock only affects the writer and bh's callback does
not take this extra lock.
Signed-off-by: Liu Ping Fan
---
async.c | 10 +-
include/block/aio.h | 2 ++
2 files changed, 11 insertions(+), 1 de
