[lkml]   [2001]   [Jul]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: VM in 2.4.7-pre hurts...
On Tue, Jul 10, 2001 at 07:43:15AM +0200, Andrea Arcangeli wrote:
> My first arguments about "overkill" were for async I/O and kiobufs, where
> the race cannot trigger. Mainly for the kiobufs I/O I'm still not very
> convinced.

another issue is that I don't see any value in defining the
unlock_buffer() with the get_bh/put_bh in it. The get_bh over there is
just useless because we don't have the memory barriers in the get_bh and
try_to_free_buffer paths, that's what party fooled me last night in
thinking we didn't need to get_bh in the implicit synchronization point
but that using unlock_buffer (with the get_bh in it was enough), otherwise
unlock_buffer would been pointless (and infact now it sorted out it is
as far I can tell ;).

So I'd kill unlock_buffer and replace it with __unlock_buffer.

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

 \ /
  Last update: 2005-03-22 12:56    [W:0.058 / U:0.204 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site