pid namespaces: round up the API

[linux-2.6] / fs / select.c

diff --git a/fs/select.c b/fs/select.c
index e2fd58f8f1db90c8377e0caf450476fe4125b837..7dede89658f535964e8808682d6d7fe784281d4e 100644 (file)
--- a/fs/select.c
+++ b/fs/select.c
@@ -714,10 +714,28 @@ out_fds:
        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
@@ -732,7 +750,18 @@ asmlinkage long sys_poll(struct pollfd __user *ufds, unsigned int nfds,
                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 = &current_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