From: Alexey Dobriyan Save ~650 bytes here. add/remove: 4/0 grow/shrink: 0/7 up/down: 430/-1088 (-658) function old new delta __copy_fs_struct - 202 +202 __put_fs_struct - 112 +112 __exit_fs - 58 +58 __exit_files - 58 +58 exit_files 58 2 -56 put_fs_struct 112 5 -107 exit_fs 161 2 -159 sys_unshare 774 590 -184 copy_process 4031 3840 -191 do_exit 1791 1597 -194 copy_fs_struct 202 5 -197 No difference in lmbench lat_proc tests on 2-way Opteron 246. Smaaaal degradation on UP P4 (within errors). Signed-off-by: Alexey Dobriyan Cc: Arjan van de Ven Cc: Ingo Molnar Signed-off-by: Andrew Morton --- diff -puN kernel/exit.c~uninline-forkc-exitc kernel/exit.c --- a/kernel/exit.c~uninline-forkc-exitc +++ a/kernel/exit.c @@ -492,7 +492,7 @@ void reset_files_struct(struct task_stru } EXPORT_SYMBOL(reset_files_struct); -static inline void __exit_files(struct task_struct *tsk) +static void __exit_files(struct task_struct *tsk) { struct files_struct * files = tsk->files; @@ -509,7 +509,7 @@ void exit_files(struct task_struct *tsk) __exit_files(tsk); } -static inline void __put_fs_struct(struct fs_struct *fs) +static void __put_fs_struct(struct fs_struct *fs) { /* No need to hold fs->lock if we are killing it */ if (atomic_dec_and_test(&fs->count)) { @@ -530,7 +530,7 @@ void put_fs_struct(struct fs_struct *fs) __put_fs_struct(fs); } -static inline void __exit_fs(struct task_struct *tsk) +static void __exit_fs(struct task_struct *tsk) { struct fs_struct * fs = tsk->fs; diff -puN kernel/fork.c~uninline-forkc-exitc kernel/fork.c --- a/kernel/fork.c~uninline-forkc-exitc +++ a/kernel/fork.c @@ -207,7 +207,7 @@ static struct task_struct *dup_task_stru } #ifdef CONFIG_MMU -static inline int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) +static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm) { struct vm_area_struct *mpnt, *tmp, **pprev; struct rb_node **rb_link, *rb_parent; @@ -589,7 +589,7 @@ fail_nomem: return retval; } -static inline struct fs_struct *__copy_fs_struct(struct fs_struct *old) +static struct fs_struct *__copy_fs_struct(struct fs_struct *old) { struct fs_struct *fs = kmem_cache_alloc(fs_cachep, GFP_KERNEL); /* We don't need to lock fs - think why ;-) */ @@ -621,7 +621,7 @@ struct fs_struct *copy_fs_struct(struct EXPORT_SYMBOL_GPL(copy_fs_struct); -static inline int copy_fs(unsigned long clone_flags, struct task_struct * tsk) +static int copy_fs(unsigned long clone_flags, struct task_struct * tsk) { if (clone_flags & CLONE_FS) { atomic_inc(¤t->fs->count); @@ -824,7 +824,7 @@ int unshare_files(void) EXPORT_SYMBOL(unshare_files); -static inline int copy_sighand(unsigned long clone_flags, struct task_struct * tsk) +static int copy_sighand(unsigned long clone_flags, struct task_struct * tsk) { struct sighand_struct *sig; @@ -847,7 +847,7 @@ void __cleanup_sighand(struct sighand_st kmem_cache_free(sighand_cachep, sighand); } -static inline int copy_signal(unsigned long clone_flags, struct task_struct * tsk) +static int copy_signal(unsigned long clone_flags, struct task_struct * tsk) { struct signal_struct *sig; int ret; @@ -927,7 +927,7 @@ void __cleanup_signal(struct signal_stru kmem_cache_free(signal_cachep, sig); } -static inline void cleanup_signal(struct task_struct *tsk) +static void cleanup_signal(struct task_struct *tsk) { struct signal_struct *sig = tsk->signal; @@ -937,7 +937,7 @@ static inline void cleanup_signal(struct __cleanup_signal(sig); } -static inline void copy_flags(unsigned long clone_flags, struct task_struct *p) +static void copy_flags(unsigned long clone_flags, struct task_struct *p) { unsigned long new_flags = p->flags; @@ -956,7 +956,7 @@ asmlinkage long sys_set_tid_address(int return task_pid_vnr(current); } -static inline void rt_mutex_init_task(struct task_struct *p) +static void rt_mutex_init_task(struct task_struct *p) { spin_lock_init(&p->pi_lock); #ifdef CONFIG_RT_MUTEXES @@ -1393,7 +1393,7 @@ struct task_struct * __cpuinit fork_idle return task; } -static inline int fork_traceflag (unsigned clone_flags) +static int fork_traceflag (unsigned clone_flags) { if (clone_flags & CLONE_UNTRACED) return 0; @@ -1526,7 +1526,7 @@ void __init proc_caches_init(void) * Check constraints on flags passed to the unshare system call and * force unsharing of additional process context as appropriate. */ -static inline void check_unshare_flags(unsigned long *flags_ptr) +static void check_unshare_flags(unsigned long *flags_ptr) { /* * If unsharing a thread from a thread group, must also _