[CRIU] [PATCH v2 16/57] pid: Pass thread pid to caller

[Kirill Tkhai]

This is refactoring, no functional changes.

Signed-off-by: Kirill Tkhai <ktkhai at virtuozzo.com>
---
 criu/cr-dump.c                  |    6 ++++--
 criu/include/parasite-syscall.h |    2 +-
 criu/parasite-syscall.c         |    4 ++--
 3 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/criu/cr-dump.c b/criu/cr-dump.c
index 018c61d1..84139fe3 100644
--- a/criu/cr-dump.c
+++ b/criu/cr-dump.c
@@ -823,7 +823,7 @@ static int dump_task_thread(struct parasite_ctl *parasite_ctl,
 {
 	struct pid *tid = item->threads[id];
 	CoreEntry *core = item->core[id];
-	pid_t pid = tid->real;
+	pid_t pid = tid->real, parasite_tid;
 	int ret = -1;
 	struct cr_img *img;
 
@@ -831,11 +831,13 @@ static int dump_task_thread(struct parasite_ctl *parasite_ctl,
 	pr_info("Dumping core for thread (pid: %d)\n", pid);
 	pr_info("----------------------------------------\n");
 
-	ret = parasite_dump_thread_seized(parasite_ctl, item, id, tid, core);
+	ret = parasite_dump_thread_seized(parasite_ctl, item, id, tid, &parasite_tid, core);
 	if (ret) {
 		pr_err("Can't dump thread for pid %d\n", pid);
 		goto err;
 	}
+	tid->ns[0].virt = parasite_tid;
+
 	pstree_insert_pid(tid);
 
 	img = open_image(CR_FD_CORE, O_DUMP, tid->ns[0].virt);
diff --git a/criu/include/parasite-syscall.h b/criu/include/parasite-syscall.h
index 0f923f38..4ba82082 100644
--- a/criu/include/parasite-syscall.h
+++ b/criu/include/parasite-syscall.h
@@ -33,7 +33,7 @@ extern int parasite_dump_misc_seized(struct parasite_ctl *ctl, struct parasite_d
 extern int parasite_dump_creds(struct parasite_ctl *ctl, struct _CredsEntry *ce);
 extern int parasite_dump_thread_leader_seized(struct parasite_ctl *ctl, const struct pstree_item *item, int pid, struct _CoreEntry *core);
 extern int parasite_dump_thread_seized(struct parasite_ctl *ctl, const struct pstree_item *item, int id,
-					struct pid *tid, struct _CoreEntry *core);
+					struct pid *tid, pid_t *parasite_tid, struct _CoreEntry *core);
 extern int dump_thread_core(int pid, CoreEntry *core,
 					const struct parasite_dump_thread *dt);
 
diff --git a/criu/parasite-syscall.c b/criu/parasite-syscall.c
index 8ec3b727..4f575a76 100644
--- a/criu/parasite-syscall.c
+++ b/criu/parasite-syscall.c
@@ -175,7 +175,7 @@ int parasite_dump_thread_leader_seized(struct parasite_ctl *ctl, const struct ps
 }
 
 int parasite_dump_thread_seized(struct parasite_ctl *ctl, const struct pstree_item *item,
-				int id, struct pid *tid, CoreEntry *core)
+				int id, struct pid *tid, pid_t *parasite_tid, CoreEntry *core)
 {
 	struct parasite_dump_thread *args;
 	pid_t pid = tid->real;
@@ -219,7 +219,7 @@ int parasite_dump_thread_seized(struct parasite_ctl *ctl, const struct pstree_it
 
 	compel_release_thread(tctl);
 
-	tid->ns[0].virt = args->tid;
+	*parasite_tid = args->tid;
 	return dump_thread_core(pid, core, args);
 
 err_rth: