On 07/31/2013 06:06 PM, Jaegeuk Kim wrote:
> 2013-07-31 (수), 09:59 +0800, Gu Zheng:
>> Hi Kim,
>>
>> On 07/30/2013 08:29 PM, Jaegeuk Kim wrote:
>>
>>> Hi Gu,
>>>
>>> The original read flow was to avoid redandunt lock/unlock_page() calls.
>>
>> Right, this can gain better read performance. But is
2013-07-31 (수), 09:59 +0800, Gu Zheng:
> Hi Kim,
>
> On 07/30/2013 08:29 PM, Jaegeuk Kim wrote:
>
> > Hi Gu,
> >
> > The original read flow was to avoid redandunt lock/unlock_page() calls.
>
> Right, this can gain better read performance. But is the wait step after
> submitting bio with
2013-07-31 (수), 09:59 +0800, Gu Zheng:
Hi Kim,
On 07/30/2013 08:29 PM, Jaegeuk Kim wrote:
Hi Gu,
The original read flow was to avoid redandunt lock/unlock_page() calls.
Right, this can gain better read performance. But is the wait step after
submitting bio with READ_SYNC needless
On 07/31/2013 06:06 PM, Jaegeuk Kim wrote:
2013-07-31 (수), 09:59 +0800, Gu Zheng:
Hi Kim,
On 07/30/2013 08:29 PM, Jaegeuk Kim wrote:
Hi Gu,
The original read flow was to avoid redandunt lock/unlock_page() calls.
Right, this can gain better read performance. But is the wait step after
Hi Kim,
On 07/30/2013 08:29 PM, Jaegeuk Kim wrote:
> Hi Gu,
>
> The original read flow was to avoid redandunt lock/unlock_page() calls.
Right, this can gain better read performance. But is the wait step after
submitting bio with READ_SYNC needless too?
> And we should not wait for
Hi Gu,
The original read flow was to avoid redandunt lock/unlock_page() calls.
And we should not wait for WRITE_SYNC, since it is just for write
priority, not for synchronization of the file system.
Thanks,
2013-07-30 (화), 18:06 +0800, Gu Zheng:
> When we submit bio with READ_SYNC or WRITE_SYNC,
When we submit bio with READ_SYNC or WRITE_SYNC, we need to wait a
moment for the io completion, current codes only find_data_page() follows the
rule, other places missing this step, so add it.
Further more, moving the PageUptodate check into f2fs_readpage() to clean up
the codes.
Signed-off-by:
When we submit bio with READ_SYNC or WRITE_SYNC, we need to wait a
moment for the io completion, current codes only find_data_page() follows the
rule, other places missing this step, so add it.
Further more, moving the PageUptodate check into f2fs_readpage() to clean up
the codes.
Signed-off-by:
Hi Gu,
The original read flow was to avoid redandunt lock/unlock_page() calls.
And we should not wait for WRITE_SYNC, since it is just for write
priority, not for synchronization of the file system.
Thanks,
2013-07-30 (화), 18:06 +0800, Gu Zheng:
When we submit bio with READ_SYNC or WRITE_SYNC,
Hi Kim,
On 07/30/2013 08:29 PM, Jaegeuk Kim wrote:
Hi Gu,
The original read flow was to avoid redandunt lock/unlock_page() calls.
Right, this can gain better read performance. But is the wait step after
submitting bio with READ_SYNC needless too?
And we should not wait for WRITE_SYNC,
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