MAX_NESTED

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* MAX_NESTED_LINKS
@ 2004-08-31  2:40 Steve French
  2004-08-31  7:38 ` MAX_NESTED_LINKS Arjan van de Ven
  0 siblings, 1 reply; 2+ messages in thread
From: Steve French @ 2004-08-31  2:40 UTC (permalink / raw)
  To: linux-kernel

MAX_NESTED_LINKS seems to have been set to 5, but the comment in
fs/namei.c indicates a larger number.  Is that intentional?

* This limits recursive symlink follows to 8, while
* limiting consecutive symlinks to 40.
@@ -405,19 +407,30 @@
static inline int do_follow_link(struct dentry *dentry, struct nameidata
*nd)
{
int err = -ELOOP;
if (current->link_count >= MAX_NESTED_LINKS)
	goto loop;
if (current->total_link_count >= 40)
	goto loop;
BUG_ON(nd->depth >= MAX_NESTED_LINKS);


^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: MAX_NESTED_LINKS
  2004-08-31  2:40 MAX_NESTED_LINKS Steve French
@ 2004-08-31  7:38 ` Arjan van de Ven
  0 siblings, 0 replies; 2+ messages in thread
From: Arjan van de Ven @ 2004-08-31  7:38 UTC (permalink / raw)
  To: Steve French; +Cc: linux-kernel

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On Tue, 2004-08-31 at 04:40, Steve French wrote:
> MAX_NESTED_LINKS seems to have been set to 5, but the comment in
> fs/namei.c indicates a larger number.  Is that intentional?

yes for now; 8 overflowed stacks on several architectures.
Al Viro has a patch series is finalizing getting that merged that makes
it safe to use 8 again.


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^ permalink raw reply	[flat|nested] 2+ messages in thread

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