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srcu: Make rcutorture writer stalls print SRCU GP state

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In the past, SRCU was simple enough that there was little point in
making the rcutorture writer stall messages print the SRCU grace-period
number state.  With the advent of Tree SRCU, this has changed.  This
commit therefore makes Classic, Tiny, and Tree SRCU report this state
to rcutorture as needed.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Mike Galbraith <efault@gmx.de>
This commit is contained in:
Paul E. McKenney 2017-04-18 17:17:35 -07:00
parent c7e88067c1
commit 7f6733c3c6
6 changed files with 52 additions and 11 deletions
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12
include/linux/srcutiny.h
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@ -78,4 +78,16 @@ static inline unsigned long srcu_batches_completed(struct srcu_struct *sp)
return 0;
}
static inline void srcutorture_get_gp_data(enum rcutorture_type test_type,
struct srcu_struct *sp, int *flags,
unsigned long *gpnum,
unsigned long *completed)
{
if (test_type != SRCU_FLAVOR)
return;
*flags = 0;
*completed = sp->srcu_gp_seq;
*gpnum = *completed;
}
#endif