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Kernel: Remove big lock from sys$statvfs

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This syscall doesn't access any unprotected shared data.
This commit is contained in:
Idan Horowitz 2022-04-09 23:07:20 +03:00 • committed by Andreas Kling
parent 4ae93179f1
commit d4ce43cf45
2 changed files with 2 additions and 2 deletions
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2
Kernel/API/Syscall.h
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@ -175,7 +175,7 @@ enum class NeedsBigProcessLock {
S(socket, NeedsBigProcessLock::Yes) \ S(socket, NeedsBigProcessLock::Yes) \
S(socketpair, NeedsBigProcessLock::Yes) \ S(socketpair, NeedsBigProcessLock::Yes) \
S(stat, NeedsBigProcessLock::No) \ S(stat, NeedsBigProcessLock::No) \
S(statvfs, NeedsBigProcessLock::Yes) \ S(statvfs, NeedsBigProcessLock::No) \
S(symlink, NeedsBigProcessLock::No) \ S(symlink, NeedsBigProcessLock::No) \
S(sync, NeedsBigProcessLock::No) \ S(sync, NeedsBigProcessLock::No) \
S(sysconf, NeedsBigProcessLock::No) \ S(sysconf, NeedsBigProcessLock::No) \

2
Kernel/Syscalls/statvfs.cpp
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@ -41,7 +41,7 @@ ErrorOr<FlatPtr> Process::do_statvfs(FileSystem const& fs, Custody const* custod
ErrorOr<FlatPtr> Process::sys$statvfs(Userspace<Syscall::SC_statvfs_params const*> user_params) ErrorOr<FlatPtr> Process::sys$statvfs(Userspace<Syscall::SC_statvfs_params const*> user_params)
{ {
VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this) VERIFY_NO_PROCESS_BIG_LOCK(this)
TRY(require_promise(Pledge::rpath)); TRY(require_promise(Pledge::rpath));
auto params = TRY(copy_typed_from_user(user_params)); auto params = TRY(copy_typed_from_user(user_params));