Are erase suspends possible?

David Woodhouse dwmw2 at
Tue Apr 2 19:38:39 EST 2002

dross at said:
> I'm looking at a recent version, and it has the function
> "cfi_intelext_suspend". 

That's for power management.

> "do_erase_oneblock_dont_wait", which doesn't wait for the erase to
> finish, and returns immediately,

You should not be looking in there. You should be calling the mtd->read(),
mtd->write() and mtd->erase() functions. The latter is already permitted to 
return immediately, calling a caller-provided callback later on completion.

The read function already suspends active erases to fulfil the read 
request. You can easily make the write function do the same, on chips that 
support it.


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