torture: Provide TMPDIR environment variable to specify tmpdir

Both rcutorture and locktorture currently place temporary files in /tmp,
in keeping with decades-long tradition.  However, sometimes it is useful
to specify an alternative temporary directory, for example, for space
or performance reasons.  This commit therefore causes the torture-test
scripting to use the path specified in the TMPDIR environment variable,
or to fall back to traditional /tmp if this variable is not set.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Paul E. McKenney 2017-08-30 15:33:49 -07:00
commit b038c58bd2
8 changed files with 9 additions and 9 deletions