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| author | Brian Gianforcaro <bgianf@serenityos.org> | 2021-07-18 11:37:07 -0700 |
|---|---|---|
| committer | Gunnar Beutner <gunnar@beutner.name> | 2021-07-20 03:21:14 +0200 |
| commit | 8f01a8b741dff6a2983fbbb0a1023e4d35aa1b19 (patch) | |
| tree | aa6999436e04a04ca17f8a6c79c3d31886eee93f | |
| parent | 5c10fb4007748374640f1db27190946e45422921 (diff) | |
| download | serenity-8f01a8b741dff6a2983fbbb0a1023e4d35aa1b19.zip | |
Kernel: Disable big process lock for sys$yield()
| -rw-r--r-- | Kernel/API/Syscall.h | 2 | ||||
| -rw-r--r-- | Kernel/Syscalls/sched.cpp | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/Kernel/API/Syscall.h b/Kernel/API/Syscall.h index 80b5506954..6377d38479 100644 --- a/Kernel/API/Syscall.h +++ b/Kernel/API/Syscall.h @@ -43,7 +43,7 @@ enum class NeedsBigProcessLock { // - VERIFY_NO_PROCESS_BIG_LOCK(this) // #define ENUMERATE_SYSCALLS(S) \ - S(yield, NeedsBigProcessLock::Yes) \ + S(yield, NeedsBigProcessLock::No) \ S(open, NeedsBigProcessLock::Yes) \ S(close, NeedsBigProcessLock::Yes) \ S(read, NeedsBigProcessLock::Yes) \ diff --git a/Kernel/Syscalls/sched.cpp b/Kernel/Syscalls/sched.cpp index 9d9310ce96..5c1aa67b79 100644 --- a/Kernel/Syscalls/sched.cpp +++ b/Kernel/Syscalls/sched.cpp @@ -10,9 +10,9 @@ namespace Kernel { KResultOr<FlatPtr> Process::sys$yield() { - VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this) + VERIFY_NO_PROCESS_BIG_LOCK(this); REQUIRE_PROMISE(stdio); - Thread::current()->yield_and_release_relock_big_lock(); + Thread::current()->yield_assuming_not_holding_big_lock(); return 0; } |