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| author | NeilBrown <neilb@suse.com> | 2018-06-18 05:52:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-22 07:43:27 +0300 |
| commit | 9f9a707738aa7a8b9f78a641b83927ada256a626 (patch) | |
| tree | bc5635cd713869c628fd43e18f7334bbb6bb6aeb /lib/scatterlist.c | |
| parent | 0eb71a9da5796851fa87ddc1a534066c0fe54055 (diff) | |
| download | linux-9f9a707738aa7a8b9f78a641b83927ada256a626.tar.xz | |
rhashtable: remove nulls_base and related code.
This "feature" is unused, undocumented, and untested and so doesn't
really belong. A patch is under development to properly implement
support for detecting when a search gets diverted down a different
chain, which the common purpose of nulls markers.
This patch actually fixes a bug too. The table resizing allows a
table to grow to 2^31 buckets, but the hash is truncated to 27 bits -
any growth beyond 2^27 is wasteful an ineffective.
This patch results in NULLS_MARKER(0) being used for all chains,
and leaves the use of rht_is_a_null() to test for it.
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'lib/scatterlist.c')
0 files changed, 0 insertions, 0 deletions