From 0c1b5ce8de67c36bbf67db38240a91f358133bdd Mon Sep 17 00:00:00 2001 From: Jiri Slaby Date: Fri, 28 Aug 2009 14:05:12 +0200 Subject: [PATCH] core: add task_struct to update_rlimit_cpu References: FATE#305733 Patch-mainline: no (later) Add task_struct as a parameter to update_rlimit_cpu to be able to set rlimit_cpu of different task than current. Signed-off-by: Jiri Slaby Acked-by: James Morris --- include/linux/posix-timers.h | 2 +- kernel/posix-cpu-timers.c | 10 +++++----- kernel/sys.c | 2 +- security/selinux/hooks.c | 3 ++- 4 files changed, 9 insertions(+), 8 deletions(-) --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -117,6 +117,6 @@ void set_process_cpu_timer(struct task_s long clock_nanosleep_restart(struct restart_block *restart_block); -void update_rlimit_cpu(unsigned long rlim_new); +void update_rlimit_cpu(struct task_struct *task, unsigned long rlim_new); #endif --- a/kernel/posix-cpu-timers.c +++ b/kernel/posix-cpu-timers.c @@ -13,16 +13,16 @@ /* * Called after updating RLIMIT_CPU to set timer expiration if necessary. */ -void update_rlimit_cpu(unsigned long rlim_new) +void update_rlimit_cpu(struct task_struct *task, unsigned long rlim_new) { cputime_t cputime = secs_to_cputime(rlim_new); - struct signal_struct *const sig = current->signal; + struct signal_struct *const sig = task->signal; if (cputime_eq(sig->it[CPUCLOCK_PROF].expires, cputime_zero) || cputime_gt(sig->it[CPUCLOCK_PROF].expires, cputime)) { - spin_lock_irq(¤t->sighand->siglock); - set_process_cpu_timer(current, CPUCLOCK_PROF, &cputime, NULL); - spin_unlock_irq(¤t->sighand->siglock); + spin_lock_irq(&task->sighand->siglock); + set_process_cpu_timer(task, CPUCLOCK_PROF, &cputime, NULL); + spin_unlock_irq(&task->sighand->siglock); } } --- a/kernel/sys.c +++ b/kernel/sys.c @@ -1350,7 +1350,7 @@ SYSCALL_DEFINE2(setrlimit, unsigned int, if (new_rlim.rlim_cur == RLIM_INFINITY) goto out; - update_rlimit_cpu(new_rlim.rlim_cur); + update_rlimit_cpu(current, new_rlim.rlim_cur); out: return 0; } --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2360,7 +2360,8 @@ static void selinux_bprm_committing_cred initrlim = init_task.signal->rlim + i; rlim->rlim_cur = min(rlim->rlim_max, initrlim->rlim_cur); } - update_rlimit_cpu(current->signal->rlim[RLIMIT_CPU].rlim_cur); + update_rlimit_cpu(current, + current->signal->rlim[RLIMIT_CPU].rlim_cur); } }