Date: Wed, 29 May 2002 08:52:13 -0400 (EDT) From: John Baldwin <jhb@FreeBSD.org> To: Peter Wemm <peter@wemm.org> Cc: current@FreeBSD.ORG, Richard Wenninger <richard@richardw.net>, Terry Lambert <tlambert2@mindspring.com> Subject: Re: UMA lock Message-ID: <XFMail.20020529085213.jhb@FreeBSD.org> In-Reply-To: <20020529072020.89F16380A@overcee.wemm.org>
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On 29-May-2002 Peter Wemm wrote: > M_NOWAIT to the mbuf m_get*, malloc*, contigmalloc*, uma_* etc means > "you must not tsleep!". M_WAITOK conversely means that tsleep should be > called as needed. Things like malloc still can return NULL even with M_WAITOK > for non-recoverable scenarios. No, M_WAITOK won't return NULL, it will panic first. :) -- John Baldwin <jhb@FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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