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

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This syscall operates on the file descriptor table, and on individual
open file descriptions. Both of those are already protected by scoped
locking mechanisms.
This commit is contained in:
Andreas Kling 2023-04-03 13:28:50 +02:00
parent 6132193bd4
commit 775e6d6865
2 changed files with 2 additions and 2 deletions
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2
Kernel/API/Syscall.h
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@ -77,7 +77,7 @@ enum class NeedsBigProcessLock {
S(fchdir, NeedsBigProcessLock::No) \
S(fchmod, NeedsBigProcessLock::No) \
S(fchown, NeedsBigProcessLock::No) \
S(fcntl, NeedsBigProcessLock::Yes) \
S(fcntl, NeedsBigProcessLock::No) \
S(fork, NeedsBigProcessLock::Yes) \
S(fstat, NeedsBigProcessLock::No) \
S(fstatvfs, NeedsBigProcessLock::No) \

2
Kernel/Syscalls/fcntl.cpp
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@ -12,7 +12,7 @@ namespace Kernel {
ErrorOr<FlatPtr> Process::sys$fcntl(int fd, int cmd, uintptr_t arg)
{
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::stdio));
dbgln_if(IO_DEBUG, "sys$fcntl: fd={}, cmd={}, arg={}", fd, cmd, arg);
auto description = TRY(open_file_description(fd));