Mirrors/criu
1
0
Fork 0
mirror of https://github.com/checkpoint-restore/criu.git synced 2026-01-23 02:14:37 +00:00
Code Issues Projects Releases Wiki Activity

files: fork helpers without CLONE_FILES | CLONE_FS

Browse source 
On restore, CRIU needs to change mount namespaces to properly restore
files and unix sockets. However, the kernel prevents this if a process
is sharing its file system information (fs) with other processes.

Fixes #2687

Signed-off-by: Andrei Vagin <avagin@google.com>
This commit is contained in:
Andrei Vagin 2025-09-14 18:44:51 -07:00
parent a8c5e11715
commit c7395f4cbe
2 changed files with 2 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

1
criu/files.c
View file

@ -1329,7 +1329,6 @@ int prepare_fds(struct pstree_item *me)
}
}
BUG_ON(current->pid->state == TASK_HELPER);
ret = open_fdinfos(me);
if (rsti(me)->fdt)

5
criu/pstree.c
View file

@ -237,9 +237,8 @@ int init_pstree_helper(struct pstree_item *ret)
{
BUG_ON(!ret->parent);
ret->pid->state = TASK_HELPER;
rsti(ret)->clone_flags = CLONE_FILES | CLONE_FS;
if (shared_fdt_prepare(ret) < 0)
return -1;
rsti(ret)->clone_flags = 0;
INIT_LIST_HEAD(&rsti(ret)->fds);
task_entries->nr_helpers++;
return 0;
}