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Kernel: Remove big lock from sys$close

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This syscall doesn't access any unprotected shared data.
This commit is contained in:
Idan Horowitz 2022-04-09 22:49:20 +03:00 committed by Andreas Kling
parent 0297349922
commit 9547a8e8a2
Notes: sideshowbarker 2024-07-17 18:38:54 +09:00 
Author: https://github.com/IdanHo
Commit: https://github.com/SerenityOS/serenity/commit/9547a8e8a2
Pull-request: https://github.com/SerenityOS/serenity/pull/13594
2 changed files with 2 additions and 2 deletions
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2
Kernel/API/Syscall.h
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@ -54,7 +54,7 @@ enum class NeedsBigProcessLock {
S(clock_gettime, NeedsBigProcessLock::No) \ S(clock_gettime, NeedsBigProcessLock::No) \
S(clock_nanosleep, NeedsBigProcessLock::No) \ S(clock_nanosleep, NeedsBigProcessLock::No) \
S(clock_settime, NeedsBigProcessLock::No) \ S(clock_settime, NeedsBigProcessLock::No) \
S(close, NeedsBigProcessLock::Yes) \ S(close, NeedsBigProcessLock::No) \
S(connect, NeedsBigProcessLock::Yes) \ S(connect, NeedsBigProcessLock::Yes) \
S(create_inode_watcher, NeedsBigProcessLock::Yes) \ S(create_inode_watcher, NeedsBigProcessLock::Yes) \
S(create_thread, NeedsBigProcessLock::Yes) \ S(create_thread, NeedsBigProcessLock::Yes) \

2
Kernel/Syscalls/open.cpp
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@ -69,7 +69,7 @@ ErrorOr<FlatPtr> Process::sys$open(Userspace<Syscall::SC_open_params const*> use
ErrorOr<FlatPtr> Process::sys$close(int fd) ErrorOr<FlatPtr> Process::sys$close(int fd)
{ {
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this) VERIFY_NO_PROCESS_BIG_LOCK(this)
TRY(require_promise(Pledge::stdio)); TRY(require_promise(Pledge::stdio));
auto description = TRY(open_file_description(fd)); auto description = TRY(open_file_description(fd));
auto result = description->close(); auto result = description->close();