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From: "Manfred Spraul" <manfred@colorfullife.com>
To: "Francis Galiegue" <fg@mandrakesoft.com>
Cc: <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] 2.4.9-ac10 but not only, locks_alloc_lock()
Date: Sun, 9 Sep 2001 11:25:15 +0200	[thread overview]
Message-ID: <002801c13911$59930880$010411ac@local> (raw)

> Not sure about one thing, though: what error code to return for
> locks_mandatory_area() on failure. It's invoked from some of the
> {do,sys}_*{read,write}*() routines and nowhere else AFAICT. I set it
to
> -ENOMEM, maybe this is not the right thing to do.

I'd put the file_lock structure on the stack. It's ~ 90 bytes long, not
too large.
Returning -ENOMEM is imho not acceptable: -ENOMEM is not listed in
SusV2, and locks_alloc_lock() internally checks for rlimits (setting
RLIM_NLIMITS to 0 and execing another app might have dangerous
sideeffects).

--
    Manfred





             reply	other threads:[~2001-09-09  9:25 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-09-09  9:25 Manfred Spraul [this message]
2001-09-09 10:33 ` [PATCH] 2.4.9-ac10 but not only, locks_alloc_lock() Francis Galiegue
  -- strict thread matches above, loose matches on Subject: below --
2001-09-09  8:19 Francis Galiegue

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