Revision 10f1d5d111e8aed46a0f1179faf9a3cf422f689e authored by Joe Thornber on 27 June 2014, 19:29:04 UTC, committed by Mike Snitzer on 10 July 2014, 20:44:14 UTC
There's a race condition between the atomic_dec_and_test(&io->count) in dec_count() and the waking of the sync_io() thread. If the thread is spuriously woken immediately after the decrement it may exit, making the on stack io struct invalid, yet the dec_count could still be using it. Fix this race by using a completion in sync_io() and dec_count(). Reported-by: Minfei Huang <huangminfei@ucloud.cn> Signed-off-by: Joe Thornber <thornber@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Acked-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org
1 parent bf14299
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
#
use strict;
while (<>) {
my $line = $_;
$_ =~ /\W*[0-9]+\W*([a-zA-Z\_0-9]+)\W*[0-9]+/;
print "*(.text.$1)\n"
unless ($line =~ /unknown/) || ($line =~ /total/);
}
Computing file changes ...
