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
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>
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makelst
#!/bin/bash
# A script to dump mixed source code & assembly
# with correct relocations from System.map
# Requires the following lines in Rules.make.
# Author(s): DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
# William Stearns <wstearns@pobox.com>
#%.lst: %.c
# $(CC) $(CFLAGS) $(EXTRA_CFLAGS) $(CFLAGS_$@) -g -c -o $*.o $<
# $(TOPDIR)/scripts/makelst $*.o $(TOPDIR)/System.map $(OBJDUMP)
#
# Copyright (C) 2000 IBM Corporation
# Author(s): DJ Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
#
t1=`$3 --syms $1 | grep .text | grep " F " | head -n 1`
if [ -n "$t1" ]; then
t2=`echo $t1 | gawk '{ print $6 }'`
if [ ! -r $2 ]; then
echo "No System.map" >&2
t7=0
else
t3=`grep $t2 $2`
t4=`echo $t3 | gawk '{ print $1 }'`
t5=`echo $t1 | gawk '{ print $1 }'`
t6=`echo $t4 - $t5 | tr a-f A-F`
t7=`( echo ibase=16 ; echo $t6 ) | bc`
fi
else
t7=0
fi
$3 -r --source --adjust-vma=$t7 $1
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