[lkml]   [2000]   [Nov]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: swapout vs. filemap_sync_pte...?

On Mon, 6 Nov 2000, Jeff Garzik wrote:

> The address_space::writepage callback is called from try_to_swap_out()
> path, and also from the filemap_sync_pte() path. There appears to be no
> way to tell the difference between the two callers. This is not good
> because the semantics are very different: "sync this page" versus "page
> is going away".

For the filemap VMAs (i.e. ones that are based on address_space with
backstore) it is the same thing. For something like tmpfs you have
different VMA-level semantics. Ergo, different VMA methods. They can
be shared with filemap ones, but you definitely don't want ->vm_ops->sync().
End of the problem...

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
Please read the FAQ at

 \ /
  Last update: 2005-03-22 12:45    [W:0.048 / U:0.540 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site