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| author | Christian Brauner <brauner@kernel.org> | 2025-09-19 10:16:49 +0200 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-09-19 16:22:38 +0200 |
| commit | 1f84344c8d83bb867d142608cf543b80bc74b7a2 (patch) | |
| tree | 537217bd05efdba7244997dc3e246c81c6723c10 /ipc | |
| parent | Merge patch series "ns: rework common initialization" (diff) | |
| parent | ns: rename to __ns_ref (diff) | |
| download | linux-1f84344c8d83bb867d142608cf543b80bc74b7a2.tar.gz linux-1f84344c8d83bb867d142608cf543b80bc74b7a2.zip | |
Merge patch series "ns: rework reference counting"
Christian Brauner <brauner@kernel.org> says:
Stop open accesses to the reference counts and cargo-culting the same
code in all namespace. Use a set of dedicated helpers and make the
actual count private.
* patches from https://lore.kernel.org/20250918-work-namespace-ns_ref-v1-0-1b0a98ee041e@kernel.org:
ns: rename to __ns_ref
nsfs: port to ns_ref_*() helpers
net: port to ns_ref_*() helpers
uts: port to ns_ref_*() helpers
ipv4: use check_net()
net: use check_net()
net-sysfs: use check_net()
user: port to ns_ref_*() helpers
time: port to ns_ref_*() helpers
pid: port to ns_ref_*() helpers
ipc: port to ns_ref_*() helpers
cgroup: port to ns_ref_*() helpers
mnt: port to ns_ref_*() helpers
ns: add reference count helpers
Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/msgutil.c | 2 | ||||
| -rw-r--r-- | ipc/namespace.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/ipc/msgutil.c b/ipc/msgutil.c index bbf61275df41..d0f7dcf4c208 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -27,7 +27,7 @@ DEFINE_SPINLOCK(mq_lock); * and not CONFIG_IPC_NS. */ struct ipc_namespace init_ipc_ns = { - .ns.count = REFCOUNT_INIT(1), + .ns.__ns_ref = REFCOUNT_INIT(1), .user_ns = &init_user_ns, .ns.inum = PROC_IPC_INIT_INO, #ifdef CONFIG_IPC_NS diff --git a/ipc/namespace.c b/ipc/namespace.c index 09d261a1a2aa..bd85d1c9d2c2 100644 --- a/ipc/namespace.c +++ b/ipc/namespace.c @@ -199,7 +199,7 @@ static void free_ipc(struct work_struct *unused) */ void put_ipc_ns(struct ipc_namespace *ns) { - if (refcount_dec_and_lock(&ns->ns.count, &mq_lock)) { + if (ns_ref_put_and_lock(ns, &mq_lock)) { mq_clear_sbinfo(ns); spin_unlock(&mq_lock); |