diff options
| -rw-r--r-- | fs/select.c | 10 | ||||
| -rw-r--r-- | include/linux/thread_info.h | 13 | ||||
| -rw-r--r-- | kernel/futex.c | 3 | ||||
| -rw-r--r-- | kernel/time/alarmtimer.c | 2 | ||||
| -rw-r--r-- | kernel/time/hrtimer.c | 2 | ||||
| -rw-r--r-- | kernel/time/posix-cpu-timers.c | 2 |
6 files changed, 21 insertions, 11 deletions
diff --git a/fs/select.c b/fs/select.c index 3d4f85defeab..de675c79f479 100644 --- a/fs/select.c +++ b/fs/select.c @@ -961,10 +961,9 @@ static long do_restart_poll(struct restart_block *restart_block) ret = do_sys_poll(ufds, nfds, to); - if (ret == -EINTR) { - restart_block->fn = do_restart_poll; - ret = -ERESTART_RESTARTBLOCK; - } + if (ret == -EINTR) + ret = set_restart_fn(restart_block, do_restart_poll); + return ret; } @@ -986,7 +985,6 @@ SYSCALL_DEFINE3(poll, struct pollfd __user *, ufds, unsigned int, nfds, struct restart_block *restart_block; restart_block = ¤t->restart_block; - restart_block->fn = do_restart_poll; restart_block->poll.ufds = ufds; restart_block->poll.nfds = nfds; @@ -997,7 +995,7 @@ SYSCALL_DEFINE3(poll, struct pollfd __user *, ufds, unsigned int, nfds, } else restart_block->poll.has_timeout = 0; - ret = -ERESTART_RESTARTBLOCK; + ret = set_restart_fn(restart_block, do_restart_poll); } return ret; } diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h index 5e6436741f96..330794252270 100644 --- a/include/linux/thread_info.h +++ b/include/linux/thread_info.h @@ -9,6 +9,7 @@ #include <linux/types.h> #include <linux/bug.h> +#include <linux/errno.h> struct timespec; struct compat_timespec; @@ -59,6 +60,18 @@ extern long do_no_restart_syscall(struct restart_block *parm); #ifdef __KERNEL__ +#ifndef arch_set_restart_data +#define arch_set_restart_data(restart) do { } while (0) +#endif + +static inline long set_restart_fn(struct restart_block *restart, + long (*fn)(struct restart_block *)) +{ + restart->fn = fn; + arch_set_restart_data(restart); + return -ERESTART_RESTARTBLOCK; +} + #define THREADINFO_GFP (GFP_KERNEL_ACCOUNT | __GFP_NOTRACK | __GFP_ZERO) /* diff --git a/kernel/futex.c b/kernel/futex.c index 0015c14ac2c0..796b1c860839 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -2822,14 +2822,13 @@ retry: goto out; restart = ¤t->restart_block; - restart->fn = futex_wait_restart; restart->futex.uaddr = uaddr; restart->futex.val = val; restart->futex.time = abs_time->tv64; restart->futex.bitset = bitset; restart->futex.flags = flags | FLAGS_HAS_TIMEOUT; - ret = -ERESTART_RESTARTBLOCK; + ret = set_restart_fn(restart, futex_wait_restart); out: if (to) { diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index 6aef4a0bed29..d06c1d8dd4d2 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -809,10 +809,10 @@ static int alarm_timer_nsleep(const clockid_t which_clock, int flags, } restart = ¤t->restart_block; - restart->fn = alarm_timer_nsleep_restart; restart->nanosleep.clockid = type; restart->nanosleep.expires = exp.tv64; restart->nanosleep.rmtp = rmtp; + set_restart_fn(restart, alarm_timer_nsleep_restart); ret = -ERESTART_RESTARTBLOCK; out: diff --git a/kernel/time/hrtimer.c b/kernel/time/hrtimer.c index f31637ced7fa..df7750e03242 100644 --- a/kernel/time/hrtimer.c +++ b/kernel/time/hrtimer.c @@ -1582,10 +1582,10 @@ long hrtimer_nanosleep(struct timespec *rqtp, struct timespec __user *rmtp, } restart = ¤t->restart_block; - restart->fn = hrtimer_nanosleep_restart; restart->nanosleep.clockid = t.timer.base->clockid; restart->nanosleep.rmtp = rmtp; restart->nanosleep.expires = hrtimer_get_expires_tv64(&t.timer); + set_restart_fn(restart, hrtimer_nanosleep_restart); ret = -ERESTART_RESTARTBLOCK; out: diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c index 21a27bb73587..9fff077d0ffc 100644 --- a/kernel/time/posix-cpu-timers.c +++ b/kernel/time/posix-cpu-timers.c @@ -1377,10 +1377,10 @@ static int posix_cpu_nsleep(const clockid_t which_clock, int flags, if (rmtp && copy_to_user(rmtp, &it.it_value, sizeof *rmtp)) return -EFAULT; - restart_block->fn = posix_cpu_nsleep_restart; restart_block->nanosleep.clockid = which_clock; restart_block->nanosleep.rmtp = rmtp; restart_block->nanosleep.expires = timespec_to_ns(rqtp); + set_restart_fn(restart_block, posix_cpu_nsleep_restart); } return error; } |