X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Fselect.c;h=dcbc1112b7ec214c063eaf5786bb17d5f208e6b0;hb=aba76fdb8a5fefba73d3490563bf7c4da37b1a34;hp=9c4f0f2604f1e3435679bd0d55499979321edf7c;hpb=6edad161cd4dfe1df772e7a74ab63cab53b5e8c1;p=linux-2.6

diff --git a/fs/select.c b/fs/select.c
index 9c4f0f2604..dcbc1112b7 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -658,8 +658,6 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds, s64 *timeout)
  	unsigned int i;
 	struct poll_list *head;
  	struct poll_list *walk;
-	struct fdtable *fdt;
-	int max_fdset;
 	/* Allocate small arguments on the stack to save memory and be
 	   faster - use long to make sure the buffer is aligned properly
 	   on 64 bit archs to avoid unaligned access */
@@ -667,11 +665,7 @@ int do_sys_poll(struct pollfd __user *ufds, unsigned int nfds, s64 *timeout)
 	struct poll_list *stack_pp = NULL;
 
 	/* Do a sanity check on nfds ... */
-	rcu_read_lock();
-	fdt = files_fdtable(current->files);
-	max_fdset = fdt->max_fdset;
-	rcu_read_unlock();
-	if (nfds > max_fdset && nfds > OPEN_MAX)
+	if (nfds > current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
 		return -EINVAL;
 
 	poll_initwait(&table);
@@ -746,9 +740,9 @@ out_fds:
 asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
 			long timeout_msecs)
 {
-	s64 timeout_jiffies = 0;
+	s64 timeout_jiffies;
 
-	if (timeout_msecs) {
+	if (timeout_msecs > 0) {
 #if HZ > 1000
 		/* We can only overflow if HZ > 1000 */
 		if (timeout_msecs / 1000 > (s64)0x7fffffffffffffffULL / (s64)HZ)
@@ -756,6 +750,9 @@ asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
 		else
 #endif
 			timeout_jiffies = msecs_to_jiffies(timeout_msecs);
+	} else {
+		/* Infinite (< 0) or no (0) timeout */
+		timeout_jiffies = timeout_msecs;
 	}
 
 	return do_sys_poll(ufds, nfds, &timeout_jiffies);