#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/syscalls.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/personality.h> /* for STICKY_TIMEOUTS */
get_file(filp);
entry->filp = filp;
entry->wait_address = wait_address;
- entry->key = p->key;
+ entry->key = p->_key;
init_waitqueue_func_entry(&entry->wait, pollwake);
entry->wait.private = pwq;
add_wait_queue(wait_address, &entry->wait);
static inline void wait_key_set(poll_table *wait, unsigned long in,
unsigned long out, unsigned long bit)
{
- if (wait) {
- wait->key = POLLEX_SET;
- if (in & bit)
- wait->key |= POLLIN_SET;
- if (out & bit)
- wait->key |= POLLOUT_SET;
- }
+ wait->_key = POLLEX_SET;
+ if (in & bit)
+ wait->_key |= POLLIN_SET;
+ if (out & bit)
+ wait->_key |= POLLOUT_SET;
}
int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
poll_initwait(&table);
wait = &table.pt;
if (end_time && !end_time->tv_sec && !end_time->tv_nsec) {
- wait = NULL;
+ wait->_qproc = NULL;
timed_out = 1;
}
if ((mask & POLLIN_SET) && (in & bit)) {
res_in |= bit;
retval++;
- wait = NULL;
+ wait->_qproc = NULL;
}
if ((mask & POLLOUT_SET) && (out & bit)) {
res_out |= bit;
retval++;
- wait = NULL;
+ wait->_qproc = NULL;
}
if ((mask & POLLEX_SET) && (ex & bit)) {
res_ex |= bit;
retval++;
- wait = NULL;
+ wait->_qproc = NULL;
}
}
}
*rexp = res_ex;
cond_resched();
}
- wait = NULL;
+ wait->_qproc = NULL;
if (retval || timed_out || signal_pending(current))
break;
if (table.error) {
* interested in events matching the pollfd->events mask, and the result
* matching that mask is both recorded in pollfd->revents and returned. The
* pwait poll_table will be used by the fd-provided poll handler for waiting,
- * if non-NULL.
+ * if pwait->_qproc is non-NULL.
*/
static inline unsigned int do_pollfd(struct pollfd *pollfd, poll_table *pwait)
{
if (file != NULL) {
mask = DEFAULT_POLLMASK;
if (file->f_op && file->f_op->poll) {
- if (pwait)
- pwait->key = pollfd->events |
- POLLERR | POLLHUP;
+ pwait->_key = pollfd->events|POLLERR|POLLHUP;
mask = file->f_op->poll(file, pwait);
}
/* Mask out unneeded events. */
/* Optimise the no-wait case */
if (end_time && !end_time->tv_sec && !end_time->tv_nsec) {
- pt = NULL;
+ pt->_qproc = NULL;
timed_out = 1;
}
for (; pfd != pfd_end; pfd++) {
/*
* Fish for events. If we found one, record it
- * and kill the poll_table, so we don't
+ * and kill poll_table->_qproc, so we don't
* needlessly register any other waiters after
* this. They'll get immediately deregistered
* when we break out and return.
*/
if (do_pollfd(pfd, pt)) {
count++;
- pt = NULL;
+ pt->_qproc = NULL;
}
}
}
/*
* All waiters have already been registered, so don't provide
- * a poll_table to them on the next loop iteration.
+ * a poll_table->_qproc to them on the next loop iteration.
*/
- pt = NULL;
+ pt->_qproc = NULL;
if (!count) {
count = wait->error;
if (signal_pending(current))