On Tue, 2015-11-03 at 10:41 +0100, Rasmus Villemoes wrote:

> @@ -667,7 +667,7 @@ void do_close_on_exec(struct files_struct *files)
>               fdt = files_fdtable(files);
>               if (fd >= fdt->max_fds)
>                       break;
> -             set = fdt->close_on_exec[i];
> +             set = fdt->close_on_exec[i] & fdt->open_fds[i];
>               if (!set)
>                       continue;
>               fdt->close_on_exec[i] = 0;

If you don't bother, why leaving this final fdt->close_on_exec[i] = 0 ?



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