[lxc-devel] [lxd/master] process_utils: remove a bunch of unused functions

[brauner on Github]

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From cab94c851407bad20b14c6506f54165d2e51f5d1 Mon Sep 17 00:00:00 2001
From: Christian Brauner <christian.brauner at ubuntu.com>
Date: Tue, 26 May 2020 17:31:07 +0200
Subject: [PATCH] process_utils: remove a bunch of unused functions

Signed-off-by: Christian Brauner <christian.brauner at ubuntu.com>
---
 lxd/include/process_utils.h | 160 ------------------------------------
 1 file changed, 160 deletions(-)

diff --git a/lxd/include/process_utils.h b/lxd/include/process_utils.h
index 8fc5846403..e786881e89 100644
--- a/lxd/include/process_utils.h
+++ b/lxd/include/process_utils.h
@@ -18,166 +18,6 @@
 #include "compiler.h"
 #include "syscall_numbers.h"
 
-#ifndef CSIGNAL
-#define CSIGNAL 0x000000ff /* signal mask to be sent at exit */
-#endif
-
-#ifndef CLONE_VM
-#define CLONE_VM 0x00000100 /* set if VM shared between processes */
-#endif
-
-#ifndef CLONE_FS
-#define CLONE_FS 0x00000200 /* set if fs info shared between processes */
-#endif
-
-#ifndef CLONE_FILES
-#define CLONE_FILES 0x00000400 /* set if open files shared between processes */
-#endif
-
-#ifndef CLONE_SIGHAND
-#define CLONE_SIGHAND 0x00000800 /* set if signal handlers and blocked signals shared */
-#endif
-
-#ifndef CLONE_PIDFD
-#define CLONE_PIDFD 0x00001000 /* set if a pidfd should be placed in parent */
-#endif
-
-#ifndef CLONE_PTRACE
-#define CLONE_PTRACE 0x00002000 /* set if we want to let tracing continue on the child too */
-#endif
-
-#ifndef CLONE_VFORK
-#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */
-#endif
-
-#ifndef CLONE_PARENT
-#define CLONE_PARENT 0x00008000 /* set if we want to have the same parent as the cloner */
-#endif
-
-#ifndef CLONE_THREAD
-#define CLONE_THREAD 0x00010000 /* Same thread group? */
-#endif
-
-#ifndef CLONE_NEWNS
-#define CLONE_NEWNS 0x00020000 /* New mount namespace group */
-#endif
-
-#ifndef CLONE_SYSVSEM
-#define CLONE_SYSVSEM 0x00040000 /* share system V SEM_UNDO semantics */
-#endif
-
-#ifndef CLONE_SETTLS
-#define CLONE_SETTLS 0x00080000 /* create a new TLS for the child */
-#endif
-
-#ifndef CLONE_PARENT_SETTID
-#define CLONE_PARENT_SETTID 0x00100000 /* set the TID in the parent */
-#endif
-
-#ifndef CLONE_CHILD_CLEARTID
-#define CLONE_CHILD_CLEARTID 0x00200000 /* clear the TID in the child */
-#endif
-
-#ifndef CLONE_DETACHED
-#define CLONE_DETACHED 0x00400000 /* Unused, ignored */
-#endif
-
-#ifndef CLONE_UNTRACED
-#define CLONE_UNTRACED 0x00800000 /* set if the tracing process can't force CLONE_PTRACE on this clone */
-#endif
-
-#ifndef CLONE_CHILD_SETTID
-#define CLONE_CHILD_SETTID 0x01000000 /* set the TID in the child */
-#endif
-
-#ifndef CLONE_NEWCGROUP
-#define CLONE_NEWCGROUP 0x02000000 /* New cgroup namespace */
-#endif
-
-#ifndef CLONE_NEWUTS
-#define CLONE_NEWUTS 0x04000000 /* New utsname namespace */
-#endif
-
-#ifndef CLONE_NEWIPC
-#define CLONE_NEWIPC 0x08000000 /* New ipc namespace */
-#endif
-
-#ifndef CLONE_NEWUSER
-#define CLONE_NEWUSER 0x10000000 /* New user namespace */
-#endif
-
-#ifndef CLONE_NEWPID
-#define CLONE_NEWPID 0x20000000 /* New pid namespace */
-#endif
-
-#ifndef CLONE_NEWNET
-#define CLONE_NEWNET 0x40000000 /* New network namespace */
-#endif
-
-#ifndef CLONE_IO
-#define CLONE_IO 0x80000000 /* Clone io context */
-#endif
-
-/* Flags for the clone3() syscall. */
-#ifndef CLONE_CLEAR_SIGHAND
-#define CLONE_CLEAR_SIGHAND 0x100000000ULL /* Clear any signal handler and reset to SIG_DFL. */
-#endif
-
-#ifndef CLONE_INTO_CGROUP
-#define CLONE_INTO_CGROUP 0x200000000ULL /* Clone into a specific cgroup given the right permissions. */
-#endif
-
-/*
- * cloning flags intersect with CSIGNAL so can be used with unshare and clone3
- * syscalls only:
- */
-#ifndef CLONE_NEWTIME
-#define CLONE_NEWTIME 0x00000080 /* New time namespace */
-#endif
-
-/* waitid */
-#ifndef P_PIDFD
-#define P_PIDFD 3
-#endif
-
-#ifndef CLONE_ARGS_SIZE_VER0
-#define CLONE_ARGS_SIZE_VER0 64 /* sizeof first published struct */
-#endif
-
-#ifndef CLONE_ARGS_SIZE_VER1
-#define CLONE_ARGS_SIZE_VER1 80 /* sizeof second published struct */
-#endif
-
-#ifndef CLONE_ARGS_SIZE_VER2
-#define CLONE_ARGS_SIZE_VER2 88 /* sizeof third published struct */
-#endif
-
-#ifndef ptr_to_u64
-#define ptr_to_u64(ptr) ((__u64)((uintptr_t)(ptr)))
-#endif
-#ifndef u64_to_ptr
-#define u64_to_ptr(x) ((void *)(uintptr_t)x)
-#endif
-
-struct lxd_clone_args {
-	__aligned_u64 flags;
-	__aligned_u64 pidfd;
-	__aligned_u64 child_tid;
-	__aligned_u64 parent_tid;
-	__aligned_u64 exit_signal;
-	__aligned_u64 stack;
-	__aligned_u64 stack_size;
-	__aligned_u64 tls;
-	__aligned_u64 set_tid;
-	__aligned_u64 set_tid_size;
-	__aligned_u64 cgroup;
-};
-
-__returns_twice static inline pid_t lxd_clone3(struct lxd_clone_args *args, size_t size)
-{
-	return syscall(__NR_clone3, args, size);
-}
-
 static inline int pidfd_open(pid_t pid, unsigned int flags)
 {
 	return syscall(__NR_pidfd_open, pid, flags);