From: Christoph Lameter Move sighand_cachep definitioni to linux/signal.h The sighand cache is only used in fs/exec.c and kernel/fork.c. It is defined in kernel/fork.c but only used in fs/exec.c. The sighand_cachep is related to signal processing. So add the definition to signal.h. Signed-off-by: Christoph Lameter Signed-off-by: Andrew Morton --- include/linux/signal.h | 2 ++ include/linux/slab.h | 1 - 2 files changed, 2 insertions(+), 1 deletion(-) diff -puN include/linux/signal.h~move-sighand_cachep-to-include-signalh include/linux/signal.h --- a/include/linux/signal.h~move-sighand_cachep-to-include-signalh +++ a/include/linux/signal.h @@ -241,6 +241,8 @@ extern int sigprocmask(int, sigset_t *, struct pt_regs; extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie); +extern struct kmem_cache *sighand_cachep; + #endif /* __KERNEL__ */ #endif /* _LINUX_SIGNAL_H */ diff -puN include/linux/slab.h~move-sighand_cachep-to-include-signalh include/linux/slab.h --- a/include/linux/slab.h~move-sighand_cachep-to-include-signalh +++ a/include/linux/slab.h @@ -318,7 +318,6 @@ extern kmem_cache_t *names_cachep; extern kmem_cache_t *files_cachep; extern kmem_cache_t *filp_cachep; extern kmem_cache_t *fs_cachep; -extern kmem_cache_t *sighand_cachep; #endif /* __KERNEL__ */ _