Freeing an mbuf cluster
Bruce M. Simpson
bms at FreeBSD.org
Thu Oct 2 12:46:23 UTC 2008
Yony Yossef wrote:
> Hi All,
> I'm trying to manually build an mbuf chain with clusters in various sizes.
> I'm doing it using the MGETHDR and MEXTADD macros, it works fine.
> Now I'm looking for the simplest way to free an mbuf cluster, since I want
> to free the clusters seperately. This function will be given as a parameter
> to MEXTADD.
> Is there a simple command like 'free(buf)' to free an mbuf cluster?
You don't specify if you are trying to add the external storage from a
pool you manage, in which case, you're on your own.
m_free() for a cluster or mbuf should just "do the right thing". Since
the UMA cleanup there are destructor functions which should free the
mbuf or cluster using the right pool.
m_freem() works on chains, of course.
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