From: Marco Stornelli
Documentation for PRAMFS.
Signed-off-by: Marco Stornelli
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On Thu, Jan 6, 2011 at 4:01 AM, Marco Stornelli
wrote:
> +accessed data that must survive system reboots and power cycles. An
> +example usage might be system logs under /var/log, or a user address
> +book in a cell phone or PDA.
Some usage model questions:
How do you handle errors? I see that
Il 07/01/2011 19:42, Tony Luck ha scritto:
> On Thu, Jan 6, 2011 at 4:01 AM, Marco Stornelli
> wrote:
>> +accessed data that must survive system reboots and power cycles. An
>> +example usage might be system logs under /var/log, or a user address
>> +book in a cell phone or PDA.
>
> Some usage mo
On Fri, Jan 7, 2011 at 12:30 PM, Marco Stornelli
wrote:
> constraint). About the errors: pramfs does not maintain file data in the
> page caches for normal file I/O, so no writeback, the read/write
> operation are done with direct io and they are always sync. The data are
> write protected in hw w
On 07/01/2011 22:59, Tony Luck wrote:
> On Fri, Jan 7, 2011 at 12:30 PM, Marco Stornelli
> wrote:
>> constraint). About the errors: pramfs does not maintain file data in the
>> page caches for normal file I/O, so no writeback, the read/write
>> operation are done with direct io and they are always
> On 07/01/2011 22:59, Tony Luck wrote:
> > On Fri, Jan 7, 2011 at 12:30 PM, Marco Stornelli
> > wrote:
> >> constraint). About the errors: pramfs does not maintain file data in the
> >> page caches for normal file I/O, so no writeback, the read/write
> >> operation are done with direct io and the
2011/1/10 Pavel Machek :
>> On 07/01/2011 22:59, Tony Luck wrote:
>> > On Fri, Jan 7, 2011 at 12:30 PM, Marco Stornelli
>> > wrote:
>> >> constraint). About the errors: pramfs does not maintain file data in the
>> >> page caches for normal file I/O, so no writeback, the read/write
>> >> operation
> You'd be better running ext2 over special block device,
> it is quite simple.
Marco,
You might want to spend some more time answering this question
(it is a particularly good one). What are the reasons to use
pramfs, rather than a ext2 over a mem<->block driver. You covered
some in your part
Il 10/01/2011 18:35, Luck, Tony ha scritto:
>> You'd be better running ext2 over special block device,
>> it is quite simple.
>
> Marco,
>
> You might want to spend some more time answering this question
> (it is a particularly good one). What are the reasons to use
> pramfs, rather than a ext2
2011/1/8 Marco Stornelli :
> On 07/01/2011 22:59, Tony Luck wrote:
>> On Fri, Jan 7, 2011 at 12:30 PM, Marco Stornelli
>> wrote:
>>> constraint). About the errors: pramfs does not maintain file data in the
>>> page caches for normal file I/O, so no writeback, the read/write
>>> operation are done
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