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| author |   Kuniyuki Iwashima <kuniyu@amazon.com> | 2025-02-17 11:11:27 -0800 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-02-18 18:33:29 -0800 |
| commit | e57a6320215c3967f51ab0edeff87db2095440e4 (patch) | |
| tree | 8e6775ea09f53dfce1e7fbca09991804c05aba65 /net | |
| parent | net: pse-pd: pd692x0: Fix power limit retrieval (diff) | |
| download | wireguard-linux-e57a6320215c3967f51ab0edeff87db2095440e4.tar.xz wireguard-linux-e57a6320215c3967f51ab0edeff87db2095440e4.zip | |
net: Add net_passive_inc() and net_passive_dec().
net_drop_ns() is NULL when CONFIG_NET_NS is disabled.
The next patch introduces a function that increments
and decrements net->passive.
As a prep, let's rename and export net_free() to
net_passive_dec() and add net_passive_inc().
Suggested-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/netdev/CANn89i+oUCt2VGvrbrweniTendZFEh+nwS=uonc004-aPkWy-Q@mail.gmail.com/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250217191129.19967-2-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/net_namespace.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c index cb39a12b2f82..4303f2a49262 100644 --- a/net/core/net_namespace.c +++ b/net/core/net_namespace.c @@ -464,7 +464,7 @@ static void net_complete_free(void) } -static void net_free(struct net *net) +void net_passive_dec(struct net *net) { if (refcount_dec_and_test(&net->passive)) { kfree(rcu_access_pointer(net->gen)); @@ -482,7 +482,7 @@ void net_drop_ns(void *p) struct net *net = (struct net *)p; if (net) - net_free(net); + net_passive_dec(net); } struct net *copy_net_ns(unsigned long flags, @@ -523,7 +523,7 @@ put_userns: key_remove_domain(net->key_domain); #endif put_user_ns(user_ns); - net_free(net); + net_passive_dec(net); dec_ucounts: dec_net_namespaces(ucounts); return ERR_PTR(rv); @@ -672,7 +672,7 @@ static void cleanup_net(struct work_struct *work) key_remove_domain(net->key_domain); #endif put_user_ns(net->user_ns); - net_free(net); + net_passive_dec(net); } cleanup_net_task = NULL; } |