Skip to main content

Browse the archive

Revision bbdb396a60b2ebf7de3b717991e5d3e28c8b7bbd authored by Martin Bligh on 28 October 2006, 17:38:25 UTC, committed by Linus Torvalds on 28 October 2006, 18:30:51 UTC 
[PATCH] Use min of two prio settings in calculating distress for reclaim
 
If try_to_free_pages / balance_pgdat are called with a gfp_mask specifying
GFP_IO and/or GFP_FS, they will reclaim the requisite number of pages, and the
reset prev_priority to DEF_PRIORITY (or to some other high (ie: unurgent)
value).

However, another reclaimer without those gfp_mask flags set (say, GFP_NOIO)
may still be struggling to reclaim pages.  The concurrent overwrite of
zone->prev_priority will cause this GFP_NOIO thread to unexpectedly cease
deactivating mapped pages, thus causing reclaim difficulties.

Fix this is to key the distress calculation not off zone->prev_priority, but
also take into account the local caller's priority by using
min(zone->prev_priority, sc->priority)

Signed-off-by: Martin J. Bligh <mbligh@google.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent 3bb1a85
Raw File
profile2linkerlist.pl 
#!/usr/bin/perl

#
# Takes a (sorted) output of readprofile and turns it into a list suitable for
# linker scripts
#
# usage:
#	 readprofile | sort -rn | perl profile2linkerlist.pl > functionlist
#

while (<>) {
  my $line = $_;

  $_ =~ /\W*[0-9]+\W*([a-zA-Z\_0-9]+)\W*[0-9]+/;

  if ( ($line =~ /unknown/) || ($line =~ /total/)) {

  } else {
    print "*(.text.$1)\n";
  }
}
back to top