Kernel: Disable big process lock in sys$gethostname() sys$sethostname()

abyesilyurt · Jul 20, 2021 · 10ce896 · 10ce896
1 parent 9201a06
commit 10ce896
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Showing 2 changed files with 4 additions and 4 deletions.
diff --git 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
@@ -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;