linux-kernel - Re: [RFC v5][PATCH 8/8] Dump open file descriptors

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Date:	Tue, 16 Sep 2008 08:54:46 -0700
From:	Dave Hansen <dave@...ux.vnet.ibm.com>
To:	Oren Laadan <orenl@...columbia.edu>
Cc:	containers@...ts.linux-foundation.org, jeremy@...p.org,
	linux-kernel@...r.kernel.org, arnd@...db.de
Subject: Re: [RFC v5][PATCH 8/8] Dump open file descriptors

On Sat, 2008-09-13 at 19:06 -0400, Oren Laadan wrote:
> 
> +static int
> +cr_write_fd_ent(struct cr_ctx *ctx, struct files_struct *files, int
> fd)
> +{
> +       struct cr_hdr h;
> +       struct cr_hdr_fd_ent *hh = cr_hbuf_get(ctx, sizeof(*hh));
> +       struct file *file = NULL;
> +       struct fdtable *fdt;
> +       int coe, objref, new, ret;
> +
> +       rcu_read_lock();
> +       fdt = files_fdtable(files);
> +       file = fcheck_files(files, fd);
> +       if (file) {
> +               coe = FD_ISSET(fd, fdt->close_on_exec);
> +               get_file(file);
> +       }
> +       rcu_read_unlock();
> +
> +       /* sanity check (although this shouldn't happen) */
> +       if (!file)
> +               return -EBADF;
> +
> +       new = cr_obj_add_ptr(ctx, (void *) file, &objref, CR_OBJ_FILE, 0);

Dude, you don't need to cast to void*.  

-- Dave

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