From 80456adb740cb26512cfb1049ddf3329ca4f22d6 Mon Sep 17 00:00:00 2001
From: Luis Gerhorst <luis.gerhorst@fau.de>
Date: Wed, 15 Dec 2021 11:11:55 +0100
Subject: [PATCH] du: Don't use file descriptor stack
---
src/task_find.bpf.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/src/task_find.bpf.c b/src/task_find.bpf.c
index 73d3cd2..e1f395a 100644
--- a/src/task_find.bpf.c
+++ b/src/task_find.bpf.c
@@ -44,7 +44,7 @@ static long iter_dir(uint32_t d_type, size_t namelen, bool match) {
err = -1;
goto end;
}
- int parent_dfd = dfd[depth];
+ int parent_dfd = dfd[0];
/* void *name_user = u_iterdents64_buf + depth * PATHLEN; */
void *name_user = u_iterdents64_buf;
@@ -89,8 +89,9 @@ static long iter_dir(uint32_t d_type, size_t namelen, bool match) {
void *child_name_user = name_user;
curr_depth = child_depth;
- dfd[curr_depth] = child_dfd;
+ dfd[0] = child_dfd;
err = bpf_task_iterdents64(child_dfd, pdpf, child_name_user, PATHLEN);
+ dfd[0] = parent_dfd;
if (err) {
bpf_printk("Error: iterdents64(%d, %d) = %d", child_dfd, pdpf, err);
goto reset_depth;
--
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