flag parameters: NONBLOCK in pipe

[safe/jmp/linux-2.6] / fs / pipe.c

diff --git a/fs/pipe.c b/fs/pipe.c
index 68e8206..10c4e9a 100644 (file)
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -950,7 +950,7 @@ fail_inode:
        return NULL;
 }
 
-struct file *create_write_pipe(void)
+struct file *create_write_pipe(int flags)
 {
        int err;
        struct inode *inode;
@@ -983,7 +983,7 @@ struct file *create_write_pipe(void)
                goto err_dentry;
        f->f_mapping = inode->i_mapping;
 
-       f->f_flags = O_WRONLY;
+       f->f_flags = O_WRONLY | (flags & O_NONBLOCK);
        f->f_version = 0;
 
        return f;
@@ -1007,7 +1007,7 @@ void free_write_pipe(struct file *f)
        put_filp(f);
 }
 
-struct file *create_read_pipe(struct file *wrf)
+struct file *create_read_pipe(struct file *wrf, int flags)
 {
        struct file *f = get_empty_filp();
        if (!f)
@@ -1019,7 +1019,7 @@ struct file *create_read_pipe(struct file *wrf)
        f->f_mapping = wrf->f_path.dentry->d_inode->i_mapping;
 
        f->f_pos = 0;
-       f->f_flags = O_RDONLY;
+       f->f_flags = O_RDONLY | (flags & O_NONBLOCK);
        f->f_op = &read_pipe_fops;
        f->f_mode = FMODE_READ;
        f->f_version = 0;
@@ -1033,13 +1033,13 @@ int do_pipe_flags(int *fd, int flags)
        int error;
        int fdw, fdr;
 
-       if (flags & ~O_CLOEXEC)
+       if (flags & ~(O_CLOEXEC | O_NONBLOCK))
                return -EINVAL;
 
-       fw = create_write_pipe();
+       fw = create_write_pipe(flags);
        if (IS_ERR(fw))
                return PTR_ERR(fw);
-       fr = create_read_pipe(fw);
+       fr = create_read_pipe(fw, flags);
        error = PTR_ERR(fr);
        if (IS_ERR(fr))
                goto err_write_pipe;