current->parent is used by ptrace to redirect some signal delivery
to the ptracer. It should only be used by 'ptrace' or 'signal' code.
All other users should use current->real_parent, which is the real
parent.
Signed-off-by: NeilBrown <[email protected]>
diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index 77ee9e58cf87..5c5d2d6470f1 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -909,7 +909,7 @@ void ll_stats_ops_tally(struct ll_sb_info *sbi, int op, int count)
sbi->ll_stats_track_id == current->pid)
lprocfs_counter_add(sbi->ll_stats, op, count);
else if (sbi->ll_stats_track_type == STATS_TRACK_PPID &&
- sbi->ll_stats_track_id == current->parent->pid)
+ sbi->ll_stats_track_id == current->real_parent->pid)
lprocfs_counter_add(sbi->ll_stats, op, count);
else if (sbi->ll_stats_track_type == STATS_TRACK_GID &&
sbi->ll_stats_track_id ==