diff options
Diffstat (limited to 'drivers/misc/sgi-gru/grufault.c')
| -rw-r--r-- | drivers/misc/sgi-gru/grufault.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index 679e017..2605edf 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -733,6 +733,11 @@ long gru_get_gseg_statistics(unsigned long arg) if (copy_from_user(&req, (void __user *)arg, sizeof(req))) return -EFAULT; + /* + * The library creates arrays of contexts for threaded programs. + * If no gts exists in the array, the context has never been used & all + * statistics are implicitly 0. + */ gts = gru_find_lock_gts(req.gseg); if (gts) { memcpy(&req.stats, >s->ustats, sizeof(gts->ustats)); |