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It must be tc_u_common associated with that tp (i.e. tp->data). Proof: * both ->ht_up and ->tp_c are assign-once * ->tp_c of anything inserted into tp_c->hlist is tp_c * hnodes never get reinserted into the lists or moved between those, so anything found by u32_lookup_ht(tp->data, ...) will have ->tp_c equal to tp->data. * tp->root->tp_c == tp->data. * ->ht_up of anything inserted into hnode->ht[...] is equal to hnode. * knodes never get reinserted into hash chains or moved between those, so anything returned by u32_lookup_key(ht, ...) will have ->ht_up equal to ht. * any knode returned by u32_get(tp, ...) will have ->ht_up->tp_c point to tp->data Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.