Re: [PATCH] vfs: automount should ignore LOOKUP_FOLLOW

From: David Howells
Date: Mon Sep 05 2011 - 12:38:15 EST


Miklos Szeredi <miklos@xxxxxxxxxx> wrote:

> After 2.6.38, with the introduction of the ->d_automount()
> infrastructure, stat(2) and others would start triggering automount
> while lstat(2), etc. still would not. This is a regression and a
> userspace ABI change.

It doesn't necessarily mean it's wrong. The main class of program that needs
to be prevented from automounting are things that do bulk stat'ing (e.g. ls) -
and they should probably be doing lstat() anyway.

> + /* We don't want to mount if someone's just doing a stat -
> + * unless they're stat'ing a directory and appended a '/' to
> + * the name.

Btw, line length is 80 chars. This comment could easily use one fewer line.

If you use emacs you can do:

ESC 7 9 C-x f

to set the right margin and then:

M-q

whilst the cursor is in the comment paragraph to be rearranged and it will
'fill' the paragraph to 79 characters.

David
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/