From 10ce896d4fff1fda789c860f8d6594c2dd5f4020 Mon Sep 17 00:00:00 2001
From: Brian Gianforcaro <bgianf@serenityos.org>
Date: Sun, 18 Jul 2021 11:27:13 -0700
Subject: [PATCH] Kernel: Disable big process lock in sys$gethostname()
 sys$sethostname()

---
 Kernel/API/Syscall.h         | 4 ++--
 Kernel/Syscalls/hostname.cpp | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Kernel/API/Syscall.h b/Kernel/API/Syscall.h
index a0f63d63377..2cb54555df0 100644
--- a/Kernel/API/Syscall.h
+++ b/Kernel/API/Syscall.h
@@ -64,8 +64,8 @@ enum class NeedsBigProcessLock {
     S(get_dir_entries, NeedsBigProcessLock::Yes)            \
     S(getcwd, NeedsBigProcessLock::Yes)                     \
     S(gettimeofday, NeedsBigProcessLock::Yes)               \
-    S(gethostname, NeedsBigProcessLock::Yes)                \
-    S(sethostname, NeedsBigProcessLock::Yes)                \
+    S(gethostname, NeedsBigProcessLock::No)                 \
+    S(sethostname, NeedsBigProcessLock::No)                 \
     S(chdir, NeedsBigProcessLock::Yes)                      \
     S(uname, NeedsBigProcessLock::Yes)                      \
     S(set_mmap_name, NeedsBigProcessLock::Yes)              \
diff --git a/Kernel/Syscalls/hostname.cpp b/Kernel/Syscalls/hostname.cpp
index 14f9f697b80..2d9376ddbc0 100644
--- a/Kernel/Syscalls/hostname.cpp
+++ b/Kernel/Syscalls/hostname.cpp
@@ -13,7 +13,7 @@ extern Mutex* g_hostname_lock;
 
 KResultOr<FlatPtr> Process::sys$gethostname(Userspace<char*> buffer, size_t size)
 {
-    VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
+    VERIFY_NO_PROCESS_BIG_LOCK(this)
     REQUIRE_PROMISE(stdio);
     if (size > NumericLimits<ssize_t>::max())
         return EINVAL;
@@ -27,7 +27,7 @@ KResultOr<FlatPtr> Process::sys$gethostname(Userspace<char*> buffer, size_t size
 
 KResultOr<FlatPtr> Process::sys$sethostname(Userspace<const char*> hostname, size_t length)
 {
-    VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
+    VERIFY_NO_PROCESS_BIG_LOCK(this)
     REQUIRE_NO_PROMISES;
     if (!is_superuser())
         return EPERM;