oom: suppress nodes that are not allowed from meminfo on oom kill

[linux-2.6.git] / fs / pipe.c

diff --git a/fs/pipe.c b/fs/pipe.c
index 68f1f8e4e23b780df24d6254d39084e4080c0f68..da42f7db50de42640a7fa56df21e21bbb48cf588 100644 (file)
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -441,7 +441,7 @@ redo:
                        break;
                }
                if (do_wakeup) {
-                       wake_up_interruptible_sync(&pipe->wait);
+                       wake_up_interruptible_sync_poll(&pipe->wait, POLLOUT | POLLWRNORM);
                        kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
                }
                pipe_wait(pipe);
@@ -450,7 +450,7 @@ redo:
 
        /* Signal writers asynchronously that there is more room. */
        if (do_wakeup) {
-               wake_up_interruptible_sync(&pipe->wait);
+               wake_up_interruptible_sync_poll(&pipe->wait, POLLOUT | POLLWRNORM);
                kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
        }
        if (ret > 0)
@@ -612,7 +612,7 @@ redo2:
                        break;
                }
                if (do_wakeup) {
-                       wake_up_interruptible_sync(&pipe->wait);
+                       wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM);
                        kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
                        do_wakeup = 0;
                }
@@ -623,7 +623,7 @@ redo2:
 out:
        mutex_unlock(&inode->i_mutex);
        if (do_wakeup) {
-               wake_up_interruptible_sync(&pipe->wait);
+               wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLRDNORM);
                kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
        }
        if (ret > 0)
@@ -715,7 +715,7 @@ pipe_release(struct inode *inode, int decr, int decw)
        if (!pipe->readers && !pipe->writers) {
                free_pipe_info(inode);
        } else {
-               wake_up_interruptible_sync(&pipe->wait);
+               wake_up_interruptible_sync_poll(&pipe->wait, POLLIN | POLLOUT | POLLRDNORM | POLLWRNORM | POLLERR | POLLHUP);
                kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
                kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
        }
@@ -1004,7 +1004,6 @@ struct file *create_write_pipe(int flags)
                goto err_inode;
        path.mnt = mntget(pipe_mnt);
 
-       d_set_d_op(path.dentry, &pipefs_dentry_operations);
        d_instantiate(path.dentry, inode);
 
        err = -ENFILE;
@@ -1266,7 +1265,8 @@ static const struct super_operations pipefs_ops = {
 static struct dentry *pipefs_mount(struct file_system_type *fs_type,
                         int flags, const char *dev_name, void *data)
 {
-       return mount_pseudo(fs_type, "pipe:", &pipefs_ops, PIPEFS_MAGIC);
+       return mount_pseudo(fs_type, "pipe:", &pipefs_ops,
+                       &pipefs_dentry_operations, PIPEFS_MAGIC);
 }
 
 static struct file_system_type pipe_fs_type = {
@@ -1292,7 +1292,7 @@ static int __init init_pipe_fs(void)
 static void __exit exit_pipe_fs(void)
 {
        unregister_filesystem(&pipe_fs_type);
-       mntput_long(pipe_mnt);
+       mntput(pipe_mnt);
 }
 
 fs_initcall(init_pipe_fs);