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Kernel: Remove big lock from sys$symlink

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This syscall doesn't access any unprotected shared data.
This commit is contained in:
Idan Horowitz 2022-04-09 23:06:04 +03:00 • committed by Andreas Kling
parent 1474b18070
commit 4ae93179f1
2 changed files with 2 additions and 2 deletions
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2
Kernel/API/Syscall.h
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@ -176,7 +176,7 @@ enum class NeedsBigProcessLock {
S(socketpair, NeedsBigProcessLock::Yes) \ S(socketpair, NeedsBigProcessLock::Yes) \
S(stat, NeedsBigProcessLock::No) \ S(stat, NeedsBigProcessLock::No) \
S(statvfs, NeedsBigProcessLock::Yes) \ S(statvfs, NeedsBigProcessLock::Yes) \
S(symlink, NeedsBigProcessLock::Yes) \ S(symlink, NeedsBigProcessLock::No) \
S(sync, NeedsBigProcessLock::No) \ S(sync, NeedsBigProcessLock::No) \
S(sysconf, NeedsBigProcessLock::No) \ S(sysconf, NeedsBigProcessLock::No) \
S(times, NeedsBigProcessLock::Yes) \ S(times, NeedsBigProcessLock::Yes) \

2
Kernel/Syscalls/link.cpp
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@ -23,7 +23,7 @@ ErrorOr<FlatPtr> Process::sys$link(Userspace<Syscall::SC_link_params const*> use
ErrorOr<FlatPtr> Process::sys$symlink(Userspace<Syscall::SC_symlink_params const*> user_params) ErrorOr<FlatPtr> Process::sys$symlink(Userspace<Syscall::SC_symlink_params const*> user_params)
{ {
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this) VERIFY_NO_PROCESS_BIG_LOCK(this)
TRY(require_promise(Pledge::cpath)); TRY(require_promise(Pledge::cpath));
auto params = TRY(copy_typed_from_user(user_params)); auto params = TRY(copy_typed_from_user(user_params));