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authorAndreas Kling <kling@serenityos.org>2023-04-03 18:43:20 +0200
committerAndreas Kling <kling@serenityos.org>2023-04-04 10:33:42 +0200
commitbd46397e1fb5bb2db0c406427801039a2611bbe4 (patch)
treedc6cb9cfcc6938323d8b0c536a3320e0f283a129 /Kernel
parent08d79c757a13c88f5525737e74aa62431d6459e7 (diff)
downloadserenity-bd46397e1fb5bb2db0c406427801039a2611bbe4.zip
Kernel: Mark inode watcher syscalls as not needing the big lock
These syscalls are already protected by existing locking mechanisms, including the mutex inside InodeWatcher.
Diffstat (limited to 'Kernel')
-rw-r--r--Kernel/API/Syscall.h310
-rw-r--r--Kernel/Syscalls/inode_watcher.cpp4
2 files changed, 157 insertions, 157 deletions
diff --git a/Kernel/API/Syscall.h b/Kernel/API/Syscall.h
index 1e80efc73e..5eb7ba9bb3 100644
--- a/Kernel/API/Syscall.h
+++ b/Kernel/API/Syscall.h
@@ -44,161 +44,161 @@ enum class NeedsBigProcessLock {
// - VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this)
// - VERIFY_NO_PROCESS_BIG_LOCK(this)
//
-#define ENUMERATE_SYSCALLS(S) \
- S(accept4, NeedsBigProcessLock::No) \
- S(adjtime, NeedsBigProcessLock::No) \
- S(alarm, NeedsBigProcessLock::No) \
- S(allocate_tls, NeedsBigProcessLock::Yes) \
- S(anon_create, NeedsBigProcessLock::No) \
- S(annotate_mapping, NeedsBigProcessLock::No) \
- S(beep, NeedsBigProcessLock::No) \
- S(bind, NeedsBigProcessLock::No) \
- S(chdir, NeedsBigProcessLock::No) \
- S(chmod, NeedsBigProcessLock::No) \
- S(chown, NeedsBigProcessLock::No) \
- S(clock_gettime, NeedsBigProcessLock::No) \
- S(clock_nanosleep, NeedsBigProcessLock::No) \
- S(clock_getres, NeedsBigProcessLock::No) \
- S(clock_settime, NeedsBigProcessLock::No) \
- S(close, NeedsBigProcessLock::No) \
- S(connect, NeedsBigProcessLock::No) \
- S(create_inode_watcher, NeedsBigProcessLock::No) \
- S(create_thread, NeedsBigProcessLock::Yes) \
- S(dbgputstr, NeedsBigProcessLock::No) \
- S(detach_thread, NeedsBigProcessLock::Yes) \
- S(disown, NeedsBigProcessLock::No) \
- S(dump_backtrace, NeedsBigProcessLock::No) \
- S(dup2, NeedsBigProcessLock::No) \
- S(emuctl, NeedsBigProcessLock::No) \
- S(execve, NeedsBigProcessLock::Yes) \
- S(exit, NeedsBigProcessLock::Yes) \
- S(exit_thread, NeedsBigProcessLock::Yes) \
- S(faccessat, NeedsBigProcessLock::Yes) \
- S(fchdir, NeedsBigProcessLock::No) \
- S(fchmod, NeedsBigProcessLock::No) \
- S(fchown, NeedsBigProcessLock::No) \
- S(fcntl, NeedsBigProcessLock::No) \
- S(fork, NeedsBigProcessLock::Yes) \
- S(fstat, NeedsBigProcessLock::No) \
- S(fstatvfs, NeedsBigProcessLock::No) \
- S(fsync, NeedsBigProcessLock::No) \
- S(ftruncate, NeedsBigProcessLock::No) \
- S(futex, NeedsBigProcessLock::Yes) \
- S(get_dir_entries, NeedsBigProcessLock::Yes) \
- S(get_root_session_id, NeedsBigProcessLock::No) \
- S(get_stack_bounds, NeedsBigProcessLock::No) \
- S(get_thread_name, NeedsBigProcessLock::No) \
- S(getcwd, NeedsBigProcessLock::No) \
- S(getegid, NeedsBigProcessLock::No) \
- S(geteuid, NeedsBigProcessLock::No) \
- S(getgid, NeedsBigProcessLock::No) \
- S(getgroups, NeedsBigProcessLock::No) \
- S(gethostname, NeedsBigProcessLock::No) \
- S(getkeymap, NeedsBigProcessLock::No) \
- S(getpeername, NeedsBigProcessLock::Yes) \
- S(getpgid, NeedsBigProcessLock::No) \
- S(getpgrp, NeedsBigProcessLock::No) \
- S(getpid, NeedsBigProcessLock::No) \
- S(getppid, NeedsBigProcessLock::No) \
- S(getrandom, NeedsBigProcessLock::No) \
- S(getresgid, NeedsBigProcessLock::No) \
- S(getresuid, NeedsBigProcessLock::No) \
- S(getrusage, NeedsBigProcessLock::No) \
- S(getsid, NeedsBigProcessLock::No) \
- S(getsockname, NeedsBigProcessLock::Yes) \
- S(getsockopt, NeedsBigProcessLock::No) \
- S(gettid, NeedsBigProcessLock::No) \
- S(getuid, NeedsBigProcessLock::No) \
- S(inode_watcher_add_watch, NeedsBigProcessLock::Yes) \
- S(inode_watcher_remove_watch, NeedsBigProcessLock::Yes) \
- S(ioctl, NeedsBigProcessLock::Yes) \
- S(join_thread, NeedsBigProcessLock::Yes) \
- S(jail_create, NeedsBigProcessLock::No) \
- S(jail_attach, NeedsBigProcessLock::No) \
- S(kill, NeedsBigProcessLock::No) \
- S(kill_thread, NeedsBigProcessLock::Yes) \
- S(killpg, NeedsBigProcessLock::No) \
- S(link, NeedsBigProcessLock::No) \
- S(listen, NeedsBigProcessLock::No) \
- S(lseek, NeedsBigProcessLock::No) \
- S(madvise, NeedsBigProcessLock::Yes) \
- S(map_time_page, NeedsBigProcessLock::Yes) \
- S(mkdir, NeedsBigProcessLock::No) \
- S(mknod, NeedsBigProcessLock::No) \
- S(mmap, NeedsBigProcessLock::Yes) \
- S(mount, NeedsBigProcessLock::Yes) \
- S(mprotect, NeedsBigProcessLock::Yes) \
- S(mremap, NeedsBigProcessLock::Yes) \
- S(msync, NeedsBigProcessLock::Yes) \
- S(munmap, NeedsBigProcessLock::Yes) \
- S(open, NeedsBigProcessLock::No) \
- S(perf_event, NeedsBigProcessLock::Yes) \
- S(perf_register_string, NeedsBigProcessLock::Yes) \
- S(pipe, NeedsBigProcessLock::No) \
- S(pledge, NeedsBigProcessLock::No) \
- S(poll, NeedsBigProcessLock::Yes) \
- S(posix_fallocate, NeedsBigProcessLock::No) \
- S(prctl, NeedsBigProcessLock::No) \
- S(profiling_disable, NeedsBigProcessLock::Yes) \
- S(profiling_enable, NeedsBigProcessLock::Yes) \
- S(profiling_free_buffer, NeedsBigProcessLock::Yes) \
- S(ptrace, NeedsBigProcessLock::Yes) \
- S(purge, NeedsBigProcessLock::Yes) \
- S(read, NeedsBigProcessLock::Yes) \
- S(pread, NeedsBigProcessLock::Yes) \
- S(readlink, NeedsBigProcessLock::No) \
- S(readv, NeedsBigProcessLock::Yes) \
- S(realpath, NeedsBigProcessLock::No) \
- S(recvfd, NeedsBigProcessLock::No) \
- S(recvmsg, NeedsBigProcessLock::Yes) \
- S(rename, NeedsBigProcessLock::No) \
- S(rmdir, NeedsBigProcessLock::No) \
- S(scheduler_get_parameters, NeedsBigProcessLock::No) \
- S(scheduler_set_parameters, NeedsBigProcessLock::No) \
- S(sendfd, NeedsBigProcessLock::No) \
- S(sendmsg, NeedsBigProcessLock::Yes) \
- S(set_mmap_name, NeedsBigProcessLock::Yes) \
- S(set_thread_name, NeedsBigProcessLock::No) \
- S(setegid, NeedsBigProcessLock::No) \
- S(seteuid, NeedsBigProcessLock::No) \
- S(setgid, NeedsBigProcessLock::No) \
- S(setgroups, NeedsBigProcessLock::No) \
- S(sethostname, NeedsBigProcessLock::No) \
- S(setkeymap, NeedsBigProcessLock::No) \
- S(setpgid, NeedsBigProcessLock::Yes) \
- S(setregid, NeedsBigProcessLock::No) \
- S(setresgid, NeedsBigProcessLock::No) \
- S(setresuid, NeedsBigProcessLock::No) \
- S(setreuid, NeedsBigProcessLock::No) \
- S(setsid, NeedsBigProcessLock::Yes) \
- S(setsockopt, NeedsBigProcessLock::No) \
- S(setuid, NeedsBigProcessLock::No) \
- S(shutdown, NeedsBigProcessLock::No) \
- S(sigaction, NeedsBigProcessLock::Yes) \
- S(sigaltstack, NeedsBigProcessLock::Yes) \
- S(sigpending, NeedsBigProcessLock::No) \
- S(sigprocmask, NeedsBigProcessLock::No) \
- S(sigreturn, NeedsBigProcessLock::No) \
- S(sigsuspend, NeedsBigProcessLock::No) \
- S(sigtimedwait, NeedsBigProcessLock::No) \
- S(socket, NeedsBigProcessLock::No) \
- S(socketpair, NeedsBigProcessLock::No) \
- S(stat, NeedsBigProcessLock::No) \
- S(statvfs, NeedsBigProcessLock::No) \
- S(symlink, NeedsBigProcessLock::No) \
- S(sync, NeedsBigProcessLock::No) \
- S(sysconf, NeedsBigProcessLock::No) \
- S(times, NeedsBigProcessLock::No) \
- S(umask, NeedsBigProcessLock::No) \
- S(umount, NeedsBigProcessLock::Yes) \
- S(uname, NeedsBigProcessLock::No) \
- S(unlink, NeedsBigProcessLock::No) \
- S(unveil, NeedsBigProcessLock::No) \
- S(utime, NeedsBigProcessLock::No) \
- S(utimensat, NeedsBigProcessLock::No) \
- S(waitid, NeedsBigProcessLock::Yes) \
- S(write, NeedsBigProcessLock::Yes) \
- S(pwritev, NeedsBigProcessLock::Yes) \
+#define ENUMERATE_SYSCALLS(S) \
+ S(accept4, NeedsBigProcessLock::No) \
+ S(adjtime, NeedsBigProcessLock::No) \
+ S(alarm, NeedsBigProcessLock::No) \
+ S(allocate_tls, NeedsBigProcessLock::Yes) \
+ S(anon_create, NeedsBigProcessLock::No) \
+ S(annotate_mapping, NeedsBigProcessLock::No) \
+ S(beep, NeedsBigProcessLock::No) \
+ S(bind, NeedsBigProcessLock::No) \
+ S(chdir, NeedsBigProcessLock::No) \
+ S(chmod, NeedsBigProcessLock::No) \
+ S(chown, NeedsBigProcessLock::No) \
+ S(clock_gettime, NeedsBigProcessLock::No) \
+ S(clock_nanosleep, NeedsBigProcessLock::No) \
+ S(clock_getres, NeedsBigProcessLock::No) \
+ S(clock_settime, NeedsBigProcessLock::No) \
+ S(close, NeedsBigProcessLock::No) \
+ S(connect, NeedsBigProcessLock::No) \
+ S(create_inode_watcher, NeedsBigProcessLock::No) \
+ S(create_thread, NeedsBigProcessLock::Yes) \
+ S(dbgputstr, NeedsBigProcessLock::No) \
+ S(detach_thread, NeedsBigProcessLock::Yes) \
+ S(disown, NeedsBigProcessLock::No) \
+ S(dump_backtrace, NeedsBigProcessLock::No) \
+ S(dup2, NeedsBigProcessLock::No) \
+ S(emuctl, NeedsBigProcessLock::No) \
+ S(execve, NeedsBigProcessLock::Yes) \
+ S(exit, NeedsBigProcessLock::Yes) \
+ S(exit_thread, NeedsBigProcessLock::Yes) \
+ S(faccessat, NeedsBigProcessLock::Yes) \
+ S(fchdir, NeedsBigProcessLock::No) \
+ S(fchmod, NeedsBigProcessLock::No) \
+ S(fchown, NeedsBigProcessLock::No) \
+ S(fcntl, NeedsBigProcessLock::No) \
+ S(fork, NeedsBigProcessLock::Yes) \
+ S(fstat, NeedsBigProcessLock::No) \
+ S(fstatvfs, NeedsBigProcessLock::No) \
+ S(fsync, NeedsBigProcessLock::No) \
+ S(ftruncate, NeedsBigProcessLock::No) \
+ S(futex, NeedsBigProcessLock::Yes) \
+ S(get_dir_entries, NeedsBigProcessLock::Yes) \
+ S(get_root_session_id, NeedsBigProcessLock::No) \
+ S(get_stack_bounds, NeedsBigProcessLock::No) \
+ S(get_thread_name, NeedsBigProcessLock::No) \
+ S(getcwd, NeedsBigProcessLock::No) \
+ S(getegid, NeedsBigProcessLock::No) \
+ S(geteuid, NeedsBigProcessLock::No) \
+ S(getgid, NeedsBigProcessLock::No) \
+ S(getgroups, NeedsBigProcessLock::No) \
+ S(gethostname, NeedsBigProcessLock::No) \
+ S(getkeymap, NeedsBigProcessLock::No) \
+ S(getpeername, NeedsBigProcessLock::Yes) \
+ S(getpgid, NeedsBigProcessLock::No) \
+ S(getpgrp, NeedsBigProcessLock::No) \
+ S(getpid, NeedsBigProcessLock::No) \
+ S(getppid, NeedsBigProcessLock::No) \
+ S(getrandom, NeedsBigProcessLock::No) \
+ S(getresgid, NeedsBigProcessLock::No) \
+ S(getresuid, NeedsBigProcessLock::No) \
+ S(getrusage, NeedsBigProcessLock::No) \
+ S(getsid, NeedsBigProcessLock::No) \
+ S(getsockname, NeedsBigProcessLock::Yes) \
+ S(getsockopt, NeedsBigProcessLock::No) \
+ S(gettid, NeedsBigProcessLock::No) \
+ S(getuid, NeedsBigProcessLock::No) \
+ S(inode_watcher_add_watch, NeedsBigProcessLock::No) \
+ S(inode_watcher_remove_watch, NeedsBigProcessLock::No) \
+ S(ioctl, NeedsBigProcessLock::Yes) \
+ S(join_thread, NeedsBigProcessLock::Yes) \
+ S(jail_create, NeedsBigProcessLock::No) \
+ S(jail_attach, NeedsBigProcessLock::No) \
+ S(kill, NeedsBigProcessLock::No) \
+ S(kill_thread, NeedsBigProcessLock::Yes) \
+ S(killpg, NeedsBigProcessLock::No) \
+ S(link, NeedsBigProcessLock::No) \
+ S(listen, NeedsBigProcessLock::No) \
+ S(lseek, NeedsBigProcessLock::No) \
+ S(madvise, NeedsBigProcessLock::Yes) \
+ S(map_time_page, NeedsBigProcessLock::Yes) \
+ S(mkdir, NeedsBigProcessLock::No) \
+ S(mknod, NeedsBigProcessLock::No) \
+ S(mmap, NeedsBigProcessLock::Yes) \
+ S(mount, NeedsBigProcessLock::Yes) \
+ S(mprotect, NeedsBigProcessLock::Yes) \
+ S(mremap, NeedsBigProcessLock::Yes) \
+ S(msync, NeedsBigProcessLock::Yes) \
+ S(munmap, NeedsBigProcessLock::Yes) \
+ S(open, NeedsBigProcessLock::No) \
+ S(perf_event, NeedsBigProcessLock::Yes) \
+ S(perf_register_string, NeedsBigProcessLock::Yes) \
+ S(pipe, NeedsBigProcessLock::No) \
+ S(pledge, NeedsBigProcessLock::No) \
+ S(poll, NeedsBigProcessLock::Yes) \
+ S(posix_fallocate, NeedsBigProcessLock::No) \
+ S(prctl, NeedsBigProcessLock::No) \
+ S(profiling_disable, NeedsBigProcessLock::Yes) \
+ S(profiling_enable, NeedsBigProcessLock::Yes) \
+ S(profiling_free_buffer, NeedsBigProcessLock::Yes) \
+ S(ptrace, NeedsBigProcessLock::Yes) \
+ S(purge, NeedsBigProcessLock::Yes) \
+ S(read, NeedsBigProcessLock::Yes) \
+ S(pread, NeedsBigProcessLock::Yes) \
+ S(readlink, NeedsBigProcessLock::No) \
+ S(readv, NeedsBigProcessLock::Yes) \
+ S(realpath, NeedsBigProcessLock::No) \
+ S(recvfd, NeedsBigProcessLock::No) \
+ S(recvmsg, NeedsBigProcessLock::Yes) \
+ S(rename, NeedsBigProcessLock::No) \
+ S(rmdir, NeedsBigProcessLock::No) \
+ S(scheduler_get_parameters, NeedsBigProcessLock::No) \
+ S(scheduler_set_parameters, NeedsBigProcessLock::No) \
+ S(sendfd, NeedsBigProcessLock::No) \
+ S(sendmsg, NeedsBigProcessLock::Yes) \
+ S(set_mmap_name, NeedsBigProcessLock::Yes) \
+ S(set_thread_name, NeedsBigProcessLock::No) \
+ S(setegid, NeedsBigProcessLock::No) \
+ S(seteuid, NeedsBigProcessLock::No) \
+ S(setgid, NeedsBigProcessLock::No) \
+ S(setgroups, NeedsBigProcessLock::No) \
+ S(sethostname, NeedsBigProcessLock::No) \
+ S(setkeymap, NeedsBigProcessLock::No) \
+ S(setpgid, NeedsBigProcessLock::Yes) \
+ S(setregid, NeedsBigProcessLock::No) \
+ S(setresgid, NeedsBigProcessLock::No) \
+ S(setresuid, NeedsBigProcessLock::No) \
+ S(setreuid, NeedsBigProcessLock::No) \
+ S(setsid, NeedsBigProcessLock::Yes) \
+ S(setsockopt, NeedsBigProcessLock::No) \
+ S(setuid, NeedsBigProcessLock::No) \
+ S(shutdown, NeedsBigProcessLock::No) \
+ S(sigaction, NeedsBigProcessLock::Yes) \
+ S(sigaltstack, NeedsBigProcessLock::Yes) \
+ S(sigpending, NeedsBigProcessLock::No) \
+ S(sigprocmask, NeedsBigProcessLock::No) \
+ S(sigreturn, NeedsBigProcessLock::No) \
+ S(sigsuspend, NeedsBigProcessLock::No) \
+ S(sigtimedwait, NeedsBigProcessLock::No) \
+ S(socket, NeedsBigProcessLock::No) \
+ S(socketpair, NeedsBigProcessLock::No) \
+ S(stat, NeedsBigProcessLock::No) \
+ S(statvfs, NeedsBigProcessLock::No) \
+ S(symlink, NeedsBigProcessLock::No) \
+ S(sync, NeedsBigProcessLock::No) \
+ S(sysconf, NeedsBigProcessLock::No) \
+ S(times, NeedsBigProcessLock::No) \
+ S(umask, NeedsBigProcessLock::No) \
+ S(umount, NeedsBigProcessLock::Yes) \
+ S(uname, NeedsBigProcessLock::No) \
+ S(unlink, NeedsBigProcessLock::No) \
+ S(unveil, NeedsBigProcessLock::No) \
+ S(utime, NeedsBigProcessLock::No) \
+ S(utimensat, NeedsBigProcessLock::No) \
+ S(waitid, NeedsBigProcessLock::Yes) \
+ S(write, NeedsBigProcessLock::Yes) \
+ S(pwritev, NeedsBigProcessLock::Yes) \
S(yield, NeedsBigProcessLock::No)
namespace Syscall {
diff --git a/Kernel/Syscalls/inode_watcher.cpp b/Kernel/Syscalls/inode_watcher.cpp
index 2cbbe24ebc..476abd2f69 100644
--- a/Kernel/Syscalls/inode_watcher.cpp
+++ b/Kernel/Syscalls/inode_watcher.cpp
@@ -39,7 +39,7 @@ ErrorOr<FlatPtr> Process::sys$create_inode_watcher(u32 flags)
ErrorOr<FlatPtr> Process::sys$inode_watcher_add_watch(Userspace<Syscall::SC_inode_watcher_add_watch_params const*> user_params)
{
- VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
+ VERIFY_NO_PROCESS_BIG_LOCK(this);
TRY(require_promise(Pledge::rpath));
auto params = TRY(copy_typed_from_user(user_params));
@@ -57,7 +57,7 @@ ErrorOr<FlatPtr> Process::sys$inode_watcher_add_watch(Userspace<Syscall::SC_inod
ErrorOr<FlatPtr> Process::sys$inode_watcher_remove_watch(int fd, int wd)
{
- VERIFY_PROCESS_BIG_LOCK_ACQUIRED(this);
+ VERIFY_NO_PROCESS_BIG_LOCK(this);
auto description = TRY(open_file_description(fd));
if (!description->is_inode_watcher())
return EBADF;