RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 04:27:44 +00:00
Code Issues Activity Actions

Kernel: Mark sys$sigpending as not needing the big lock

Browse source 
Another one that only touches the current thread.
This commit is contained in:
Andreas Kling 2023-04-03 16:26:11 +02:00
parent e9fe0ecbae
commit f0b5c585f2
2 changed files with 2 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Kernel/API/Syscall.h
View file

@ -176,7 +176,7 @@ enum class NeedsBigProcessLock {
S(shutdown, NeedsBigProcessLock::No) \ S(shutdown, NeedsBigProcessLock::No) \
S(sigaction, NeedsBigProcessLock::Yes) \ S(sigaction, NeedsBigProcessLock::Yes) \
S(sigaltstack, NeedsBigProcessLock::Yes) \ S(sigaltstack, NeedsBigProcessLock::Yes) \
S(sigpending, NeedsBigProcessLock::Yes) \ S(sigpending, NeedsBigProcessLock::No) \
S(sigprocmask, NeedsBigProcessLock::No) \ S(sigprocmask, NeedsBigProcessLock::No) \
S(sigreturn, NeedsBigProcessLock::No) \ S(sigreturn, NeedsBigProcessLock::No) \
S(sigsuspend, NeedsBigProcessLock::No) \ S(sigsuspend, NeedsBigProcessLock::No) \

2
Kernel/Syscalls/sigaction.cpp
View file

@ -43,7 +43,7 @@ ErrorOr<FlatPtr> Process::sys$sigprocmask(int how, Userspace<sigset_t const*> se
ErrorOr<FlatPtr> Process::sys$sigpending(Userspace<sigset_t*> set) ErrorOr<FlatPtr> Process::sys$sigpending(Userspace<sigset_t*> set)
{ {
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this); VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio)); TRY(require_promise(Pledge::stdio));
auto pending_signals = Thread::current()->pending_signals(); auto pending_signals = Thread::current()->pending_signals();
TRY(copy_to_user(set, &pending_signals)); TRY(copy_to_user(set, &pending_signals));