diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2025-03-20 21:32:20 +0100 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-03-20 21:38:01 +0100 |
| commit | f4915933947c71f08ed1c5a6c9b4fdbe735e18cf (patch) | |
| tree | ef92e639f397903c31edeefc7be8d6e617f8d163 /kernel/locking/semaphore.c | |
| parent | 6855b9be9cf70d3fd4b4b9a00696eae65335320c (diff) | |
| parent | 5fc31936081919a8572a3d644f3fbb258038f337 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.14-rc8).
Conflict:
tools/testing/selftests/net/Makefile
03544faad761 ("selftest: net: add proc_net_pktgen")
3ed61b8938c6 ("selftests: net: test for lwtunnel dst ref loops")
tools/testing/selftests/net/config:
85cb3711acb8 ("selftests: net: Add test cases for link and peer netns")
3ed61b8938c6 ("selftests: net: test for lwtunnel dst ref loops")
Adjacent commits:
tools/testing/selftests/net/Makefile
c935af429ec2 ("selftests: net: add support for testing SO_RCVMARK and SO_RCVPRIORITY")
355d940f4d5a ("Revert "selftests: Add IPv6 link-local address generation tests for GRE devices."")
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'kernel/locking/semaphore.c')
| -rw-r--r-- | kernel/locking/semaphore.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/kernel/locking/semaphore.c b/kernel/locking/semaphore.c index 34bfae72f295..de9117c0e671 100644 --- a/kernel/locking/semaphore.c +++ b/kernel/locking/semaphore.c @@ -29,6 +29,7 @@ #include <linux/export.h> #include <linux/sched.h> #include <linux/sched/debug.h> +#include <linux/sched/wake_q.h> #include <linux/semaphore.h> #include <linux/spinlock.h> #include <linux/ftrace.h> @@ -38,7 +39,7 @@ static noinline void __down(struct semaphore *sem); static noinline int __down_interruptible(struct semaphore *sem); static noinline int __down_killable(struct semaphore *sem); static noinline int __down_timeout(struct semaphore *sem, long timeout); -static noinline void __up(struct semaphore *sem); +static noinline void __up(struct semaphore *sem, struct wake_q_head *wake_q); /** * down - acquire the semaphore @@ -183,13 +184,16 @@ EXPORT_SYMBOL(down_timeout); void __sched up(struct semaphore *sem) { unsigned long flags; + DEFINE_WAKE_Q(wake_q); raw_spin_lock_irqsave(&sem->lock, flags); if (likely(list_empty(&sem->wait_list))) sem->count++; else - __up(sem); + __up(sem, &wake_q); raw_spin_unlock_irqrestore(&sem->lock, flags); + if (!wake_q_empty(&wake_q)) + wake_up_q(&wake_q); } EXPORT_SYMBOL(up); @@ -269,11 +273,12 @@ static noinline int __sched __down_timeout(struct semaphore *sem, long timeout) return __down_common(sem, TASK_UNINTERRUPTIBLE, timeout); } -static noinline void __sched __up(struct semaphore *sem) +static noinline void __sched __up(struct semaphore *sem, + struct wake_q_head *wake_q) { struct semaphore_waiter *waiter = list_first_entry(&sem->wait_list, struct semaphore_waiter, list); list_del(&waiter->list); waiter->up = true; - wake_up_process(waiter->task); + wake_q_add(wake_q, waiter->task); } |