[lkml]   [2005]   [Aug]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC] [PATCH] cache pollution aware __copy_from_user_ll()
Actually, is there any place *other* than write() to the page cache that
warrants a non-temporal store? Network sockets with scatter/gather and
hardware checksum, maybe?

This is pretty much synonomous with what is allowed to go into high
memory, no?

While we're on the subject, for the copy_from_user source, prefetchnta is
probably indicated. If user space hasn't caused it to be cached already
(admittedly, the common case), we *know* the kernel isn't going to look
at that data again.
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: 2005-08-15 14:18    [W:0.032 / U:0.296 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site