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authorIngo Molnar <mingo@elte.hu>2009-02-07 12:31:54 -0500
committerIngo Molnar <mingo@elte.hu>2009-02-07 12:31:54 -0500
commit673f8205914a12e928c65afbcd78ae748f78df53 (patch)
tree38c60215646d079fab3bff812e094e914960c7ec /kernel/signal.c
parentcf47b8f3d96b0b8b10b557444a28b3ca4024ff82 (diff)
parentae1a25da8448271a99745da03100d5299575a269 (diff)
Merge branch 'linus' into core/locking
Conflicts: fs/btrfs/locking.c
Diffstat (limited to 'kernel/signal.c')
-rw-r--r--kernel/signal.c61
1 files changed, 26 insertions, 35 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 3152ac3b62e2..b6b36768b758 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -909,7 +909,9 @@ static void print_fatal_signal(struct pt_regs *regs, int signr)
909 } 909 }
910#endif 910#endif
911 printk("\n"); 911 printk("\n");
912 preempt_disable();
912 show_regs(regs); 913 show_regs(regs);
914 preempt_enable();
913} 915}
914 916
915static int __init setup_print_fatal_signals(char *str) 917static int __init setup_print_fatal_signals(char *str)
@@ -1961,7 +1963,7 @@ EXPORT_SYMBOL(unblock_all_signals);
1961 * System call entry points. 1963 * System call entry points.
1962 */ 1964 */
1963 1965
1964asmlinkage long sys_restart_syscall(void) 1966SYSCALL_DEFINE0(restart_syscall)
1965{ 1967{
1966 struct restart_block *restart = &current_thread_info()->restart_block; 1968 struct restart_block *restart = &current_thread_info()->restart_block;
1967 return restart->fn(restart); 1969 return restart->fn(restart);
@@ -2014,8 +2016,8 @@ int sigprocmask(int how, sigset_t *set, sigset_t *oldset)
2014 return error; 2016 return error;
2015} 2017}
2016 2018
2017asmlinkage long 2019SYSCALL_DEFINE4(rt_sigprocmask, int, how, sigset_t __user *, set,
2018sys_rt_sigprocmask(int how, sigset_t __user *set, sigset_t __user *oset, size_t sigsetsize) 2020 sigset_t __user *, oset, size_t, sigsetsize)
2019{ 2021{
2020 int error = -EINVAL; 2022 int error = -EINVAL;
2021 sigset_t old_set, new_set; 2023 sigset_t old_set, new_set;
@@ -2074,8 +2076,7 @@ out:
2074 return error; 2076 return error;
2075} 2077}
2076 2078
2077asmlinkage long 2079SYSCALL_DEFINE2(rt_sigpending, sigset_t __user *, set, size_t, sigsetsize)
2078sys_rt_sigpending(sigset_t __user *set, size_t sigsetsize)
2079{ 2080{
2080 return do_sigpending(set, sigsetsize); 2081 return do_sigpending(set, sigsetsize);
2081} 2082}
@@ -2146,11 +2147,9 @@ int copy_siginfo_to_user(siginfo_t __user *to, siginfo_t *from)
2146 2147
2147#endif 2148#endif
2148 2149
2149asmlinkage long 2150SYSCALL_DEFINE4(rt_sigtimedwait, const sigset_t __user *, uthese,
2150sys_rt_sigtimedwait(const sigset_t __user *uthese, 2151 siginfo_t __user *, uinfo, const struct timespec __user *, uts,
2151 siginfo_t __user *uinfo, 2152 size_t, sigsetsize)
2152 const struct timespec __user *uts,
2153 size_t sigsetsize)
2154{ 2153{
2155 int ret, sig; 2154 int ret, sig;
2156 sigset_t these; 2155 sigset_t these;
@@ -2223,8 +2222,7 @@ sys_rt_sigtimedwait(const sigset_t __user *uthese,
2223 return ret; 2222 return ret;
2224} 2223}
2225 2224
2226asmlinkage long 2225SYSCALL_DEFINE2(kill, pid_t, pid, int, sig)
2227sys_kill(pid_t pid, int sig)
2228{ 2226{
2229 struct siginfo info; 2227 struct siginfo info;
2230 2228
@@ -2283,7 +2281,7 @@ static int do_tkill(pid_t tgid, pid_t pid, int sig)
2283 * exists but it's not belonging to the target process anymore. This 2281 * exists but it's not belonging to the target process anymore. This
2284 * method solves the problem of threads exiting and PIDs getting reused. 2282 * method solves the problem of threads exiting and PIDs getting reused.
2285 */ 2283 */
2286asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig) 2284SYSCALL_DEFINE3(tgkill, pid_t, tgid, pid_t, pid, int, sig)
2287{ 2285{
2288 /* This is only valid for single tasks */ 2286 /* This is only valid for single tasks */
2289 if (pid <= 0 || tgid <= 0) 2287 if (pid <= 0 || tgid <= 0)
@@ -2295,8 +2293,7 @@ asmlinkage long sys_tgkill(pid_t tgid, pid_t pid, int sig)
2295/* 2293/*
2296 * Send a signal to only one task, even if it's a CLONE_THREAD task. 2294 * Send a signal to only one task, even if it's a CLONE_THREAD task.
2297 */ 2295 */
2298asmlinkage long 2296SYSCALL_DEFINE2(tkill, pid_t, pid, int, sig)
2299sys_tkill(pid_t pid, int sig)
2300{ 2297{
2301 /* This is only valid for single tasks */ 2298 /* This is only valid for single tasks */
2302 if (pid <= 0) 2299 if (pid <= 0)
@@ -2305,8 +2302,8 @@ sys_tkill(pid_t pid, int sig)
2305 return do_tkill(0, pid, sig); 2302 return do_tkill(0, pid, sig);
2306} 2303}
2307 2304
2308asmlinkage long 2305SYSCALL_DEFINE3(rt_sigqueueinfo, pid_t, pid, int, sig,
2309sys_rt_sigqueueinfo(pid_t pid, int sig, siginfo_t __user *uinfo) 2306 siginfo_t __user *, uinfo)
2310{ 2307{
2311 siginfo_t info; 2308 siginfo_t info;
2312 2309
@@ -2434,8 +2431,7 @@ out:
2434 2431
2435#ifdef __ARCH_WANT_SYS_SIGPENDING 2432#ifdef __ARCH_WANT_SYS_SIGPENDING
2436 2433
2437asmlinkage long 2434SYSCALL_DEFINE1(sigpending, old_sigset_t __user *, set)
2438sys_sigpending(old_sigset_t __user *set)
2439{ 2435{
2440 return do_sigpending(set, sizeof(*set)); 2436 return do_sigpending(set, sizeof(*set));
2441} 2437}
@@ -2446,8 +2442,8 @@ sys_sigpending(old_sigset_t __user *set)
2446/* Some platforms have their own version with special arguments others 2442/* Some platforms have their own version with special arguments others
2447 support only sys_rt_sigprocmask. */ 2443 support only sys_rt_sigprocmask. */
2448 2444
2449asmlinkage long 2445SYSCALL_DEFINE3(sigprocmask, int, how, old_sigset_t __user *, set,
2450sys_sigprocmask(int how, old_sigset_t __user *set, old_sigset_t __user *oset) 2446 old_sigset_t __user *, oset)
2451{ 2447{
2452 int error; 2448 int error;
2453 old_sigset_t old_set, new_set; 2449 old_sigset_t old_set, new_set;
@@ -2497,11 +2493,10 @@ out:
2497#endif /* __ARCH_WANT_SYS_SIGPROCMASK */ 2493#endif /* __ARCH_WANT_SYS_SIGPROCMASK */
2498 2494
2499#ifdef __ARCH_WANT_SYS_RT_SIGACTION 2495#ifdef __ARCH_WANT_SYS_RT_SIGACTION
2500asmlinkage long 2496SYSCALL_DEFINE4(rt_sigaction, int, sig,
2501sys_rt_sigaction(int sig, 2497 const struct sigaction __user *, act,
2502 const struct sigaction __user *act, 2498 struct sigaction __user *, oact,
2503 struct sigaction __user *oact, 2499 size_t, sigsetsize)
2504 size_t sigsetsize)
2505{ 2500{
2506 struct k_sigaction new_sa, old_sa; 2501 struct k_sigaction new_sa, old_sa;
2507 int ret = -EINVAL; 2502 int ret = -EINVAL;
@@ -2531,15 +2526,13 @@ out:
2531/* 2526/*
2532 * For backwards compatibility. Functionality superseded by sigprocmask. 2527 * For backwards compatibility. Functionality superseded by sigprocmask.
2533 */ 2528 */
2534asmlinkage long 2529SYSCALL_DEFINE0(sgetmask)
2535sys_sgetmask(void)
2536{ 2530{
2537 /* SMP safe */ 2531 /* SMP safe */
2538 return current->blocked.sig[0]; 2532 return current->blocked.sig[0];
2539} 2533}
2540 2534
2541asmlinkage long 2535SYSCALL_DEFINE1(ssetmask, int, newmask)
2542sys_ssetmask(int newmask)
2543{ 2536{
2544 int old; 2537 int old;
2545 2538
@@ -2559,8 +2552,7 @@ sys_ssetmask(int newmask)
2559/* 2552/*
2560 * For backwards compatibility. Functionality superseded by sigaction. 2553 * For backwards compatibility. Functionality superseded by sigaction.
2561 */ 2554 */
2562asmlinkage unsigned long 2555SYSCALL_DEFINE2(signal, int, sig, __sighandler_t, handler)
2563sys_signal(int sig, __sighandler_t handler)
2564{ 2556{
2565 struct k_sigaction new_sa, old_sa; 2557 struct k_sigaction new_sa, old_sa;
2566 int ret; 2558 int ret;
@@ -2577,8 +2569,7 @@ sys_signal(int sig, __sighandler_t handler)
2577 2569
2578#ifdef __ARCH_WANT_SYS_PAUSE 2570#ifdef __ARCH_WANT_SYS_PAUSE
2579 2571
2580asmlinkage long 2572SYSCALL_DEFINE0(pause)
2581sys_pause(void)
2582{ 2573{
2583 current->state = TASK_INTERRUPTIBLE; 2574 current->state = TASK_INTERRUPTIBLE;
2584 schedule(); 2575 schedule();
@@ -2588,7 +2579,7 @@ sys_pause(void)
2588#endif 2579#endif
2589 2580
2590#ifdef __ARCH_WANT_SYS_RT_SIGSUSPEND 2581#ifdef __ARCH_WANT_SYS_RT_SIGSUSPEND
2591asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize) 2582SYSCALL_DEFINE2(rt_sigsuspend, sigset_t __user *, unewset, size_t, sigsetsize)
2592{ 2583{
2593 sigset_t newset; 2584 sigset_t newset;
2594 2585