mirror of
https://github.com/torvalds/linux.git
synced 2026-10-23 23:51:02 +02:00
4f238e6e1c
free_mnt_ns() skipped ns_common_free() for anonymous mount namespaces (the "if (!is_anon_ns(ns))" guard) because they carry the reserved inum MNT_NS_ANON_INO, which proc_free_inum() must never release. A following change needs ns_common_free() to run for every namespace, to release per-namespace state attached during __ns_common_init(). Move the reserved-inum decision into __ns_common_free() and let free_mnt_ns() call ns_common_free() unconditionally. __ns_common_free() is shared by all namespace types, so it gates proc_free_inum() on ns->inum > MNT_NS_INO_SPECIAL_MAX (a new alias for MNT_NS_ANON_INO) rather than the mount-specific is_anon_ns(). The reserved inums (MNT_NS_ANON_INO and the *_NS_INIT_INO values just above it) belong to namespaces that are never freed, except the anonymous mount namespace; dynamically allocated inums are >= PROC_DYNAMIC_FIRST. So the comparison frees every dynamic inum and skips exactly the anonymous mount namespace, matching the previous guard. Cc: Günther Noack <gnoack@google.com> Cc: Paul Moore <paul@paul-moore.com> Signed-off-by: Christian Brauner <brauner@kernel.org> Co-developed-by: Mickaël Salaün <mic@digikod.net> Signed-off-by: Mickaël Salaün <mic@digikod.net> Reviewed-by: Christian Brauner (Amutable) <brauner@kernel.org> Signed-off-by: Paul Moore <paul@paul-moore.com> |
||
|---|---|---|
| .. | ||
| asm-generic | ||
| cxl | ||
| drm | ||
| fwctl | ||
| linux | ||
| misc | ||
| mtd | ||
| rdma | ||
| regulator | ||
| scsi | ||
| sound | ||
| video | ||
| xen | ||
| Kbuild | ||