It seems there is a redundant check in mb_zinit_pack():
if (uma_zalloc_arg(zone_clust, m, how) == NULL ||
m->m_ext.ext_buf == NULL)
return (ENOMEM);
If uma_zalloc_arg() successfully allocates a cluster then shouldn't
m->m_ext.ext_buf be guaranteed not to be NULL?
I can't find any rationale for the second check; I removed it from my
private tree, moved it into a KASSERT() and didn't run into any problem
so far.
Am I missing something?
Thanks,
Renaud Lienhart
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