return max;
}
-#define BIT(i) (1UL << ((i)&(__NFDBITS-1)))
-#define MEM(i,m) ((m)+(unsigned)(i)/__NFDBITS)
-#define ISSET(i,m) (((i)&*(m)) != 0)
-#define SET(i,m) (*(m) |= (i))
-
#define POLLIN_SET (POLLRDNORM | POLLRDBAND | POLLIN | POLLHUP | POLLERR)
#define POLLOUT_SET (POLLWRBAND | POLLWRNORM | POLLOUT | POLLERR)
#define POLLEX_SET (POLLPRI)
/* Optimise the no-wait case */
if (!(*timeout))
pt = NULL;
-
+
for (;;) {
struct poll_list *walk;
long __timeout;
* a poll_table to them on the next loop iteration.
*/
pt = NULL;
- if (count || !*timeout || signal_pending(current))
- break;
- count = wait->error;
- if (count)
+ if (!count) {
+ count = wait->error;
+ if (signal_pending(current))
+ count = -EINTR;
+ }
+ if (count || !*timeout)
break;
if (*timeout < 0) {
poll_initwait(&table);
fdcount = do_poll(nfds, head, &table, timeout);
- if (!fdcount && signal_pending(current))
- fdcount = -EINTR;
poll_freewait(&table);
for (walk = head; walk; walk = walk->next) {
return err;
}
+static long do_restart_poll(struct restart_block *restart_block)
+{
+ struct pollfd __user *ufds = (struct pollfd __user*)restart_block->arg0;
+ int nfds = restart_block->arg1;
+ s64 timeout = ((s64)restart_block->arg3<<32) | (s64)restart_block->arg2;
+ int ret;
+
+ ret = do_sys_poll(ufds, nfds, &timeout);
+ if (ret == -EINTR) {
+ restart_block->fn = do_restart_poll;
+ restart_block->arg2 = timeout & 0xFFFFFFFF;
+ restart_block->arg3 = (u64)timeout >> 32;
+ ret = -ERESTART_RESTARTBLOCK;
+ }
+ return ret;
+}
+
asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
long timeout_msecs)
{
s64 timeout_jiffies;
+ int ret;
if (timeout_msecs > 0) {
#if HZ > 1000
timeout_jiffies = timeout_msecs;
}
- return do_sys_poll(ufds, nfds, &timeout_jiffies);
+ ret = do_sys_poll(ufds, nfds, &timeout_jiffies);
+ if (ret == -EINTR) {
+ struct restart_block *restart_block;
+ restart_block = ¤t_thread_info()->restart_block;
+ restart_block->fn = do_restart_poll;
+ restart_block->arg0 = (unsigned long)ufds;
+ restart_block->arg1 = nfds;
+ restart_block->arg2 = timeout_jiffies & 0xFFFFFFFF;
+ restart_block->arg3 = (u64)timeout_jiffies >> 32;
+ ret = -ERESTART_RESTARTBLOCK;
+ }
+ return ret;
}
#ifdef TIF_RESTORE_SIGMASK