> Hi,
>
> It is possible to customize the bdflush deamon in order to made it
> synchronizing one disk every 30sec and an another every days ? (without
> hacking a lot the kernel sources )
> Sounds strange, but on an embedded system I have a NAND Flash file
> system and a hard disk. NAND can't be synchronized as regularly as the
> hard disk because of the number of write limit. that's why the question.
>
> I'll appreciate any clue,advice or link.
>
Update just executes sync() at some interval. You can hack out a new
update daemon as:
int main(int unused, char *argv[])
{
if(fork()) return 0;
strcpy(argv[0], "bdflush");
for(;;)
{
sync();
sleep(30);
}
}
Now, the problem is with the flash file. You can hack the sources
../linux/fs/super.c, to sync your device only after each 'N' times
it's called. Unmounting a device will sync it, but it will take a
longer time than usual if it hasn't been synchronized recently.
Cheers,
Dick Johnson
**** FILE SYSTEM WAS MODIFIED ****
Penguin : Linux version 2.3.13 on an i686 machine (400.59 BogoMips).
Warning : It's hard to remain at the trailing edge of technology.
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