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authorDavid S. Miller <davem@davemloft.net>2021-09-14 15:09:54 +0300
committerDavid S. Miller <davem@davemloft.net>2021-09-14 15:09:54 +0300
commit2865ba82476a6b2603db40cfc1c8c0831409fb41 (patch)
tree5a59a0950a560a9b59a7b598f1f6f0a83a2b9189 /net
parent550ac9c1aaaaf51fd42e20d461f0b1cdbd55b3d2 (diff)
parent43d2b88c29f2d120b4dc22f27b3483eb14bd9815 (diff)
downloadlinux-2865ba82476a6b2603db40cfc1c8c0831409fb41.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says: ==================== pull-request: bpf 2021-09-14 The following pull-request contains BPF updates for your *net* tree. We've added 7 non-merge commits during the last 13 day(s) which contain a total of 18 files changed, 334 insertions(+), 193 deletions(-). The main changes are: 1) Fix mmap_lock lockdep splat in BPF stack map's build_id lookup, from Yonghong Song. 2) Fix BPF cgroup v2 program bypass upon net_cls/prio activation, from Daniel Borkmann. 3) Fix kvcalloc() BTF line info splat on oversized allocation attempts, from Bixuan Cui. 4) Fix BPF selftest build of task_pt_regs test for arm64/s390, from Jean-Philippe Brucker. 5) Fix BPF's disasm.{c,h} to dual-license so that it is aligned with bpftool given the former is a build dependency for the latter, from Daniel Borkmann with ACKs from contributors. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/netclassid_cgroup.c7
-rw-r--r--net/core/netprio_cgroup.c10
2 files changed, 3 insertions, 14 deletions
diff --git a/net/core/netclassid_cgroup.c b/net/core/netclassid_cgroup.c
index b49c57d35a88..1a6a86693b74 100644
--- a/net/core/netclassid_cgroup.c
+++ b/net/core/netclassid_cgroup.c
@@ -71,11 +71,8 @@ static int update_classid_sock(const void *v, struct file *file, unsigned n)
struct update_classid_context *ctx = (void *)v;
struct socket *sock = sock_from_file(file);
- if (sock) {
- spin_lock(&cgroup_sk_update_lock);
+ if (sock)
sock_cgroup_set_classid(&sock->sk->sk_cgrp_data, ctx->classid);
- spin_unlock(&cgroup_sk_update_lock);
- }
if (--ctx->batch == 0) {
ctx->batch = UPDATE_CLASSID_BATCH;
return n + 1;
@@ -121,8 +118,6 @@ static int write_classid(struct cgroup_subsys_state *css, struct cftype *cft,
struct css_task_iter it;
struct task_struct *p;
- cgroup_sk_alloc_disable();
-
cs->classid = (u32)value;
css_task_iter_start(css, 0, &it);
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index 99a431c56f23..8456dfbe2eb4 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -207,8 +207,6 @@ static ssize_t write_priomap(struct kernfs_open_file *of,
if (!dev)
return -ENODEV;
- cgroup_sk_alloc_disable();
-
rtnl_lock();
ret = netprio_set_prio(of_css(of), dev, prio);
@@ -221,12 +219,10 @@ static ssize_t write_priomap(struct kernfs_open_file *of,
static int update_netprio(const void *v, struct file *file, unsigned n)
{
struct socket *sock = sock_from_file(file);
- if (sock) {
- spin_lock(&cgroup_sk_update_lock);
+
+ if (sock)
sock_cgroup_set_prioidx(&sock->sk->sk_cgrp_data,
(unsigned long)v);
- spin_unlock(&cgroup_sk_update_lock);
- }
return 0;
}
@@ -235,8 +231,6 @@ static void net_prio_attach(struct cgroup_taskset *tset)
struct task_struct *p;
struct cgroup_subsys_state *css;
- cgroup_sk_alloc_disable();
-
cgroup_taskset_for_each(p, css, tset) {
void *v = (void *)(unsigned long)css->id;