staging: lustre: ptlrpc: convert conn_hash to rhashtable

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Linux has a resizeable hashtable implementation in lib,
so we should use that instead of having one in libcfs.

This patch converts the ptlrpc conn_hash to use rhashtable.
In the process we gain lockless lookup.

As connections are never deleted until the hash table is destroyed,
there is no need to count the reference in the hash table.  There
is also no need to enable automatic_shrinking.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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This commit is contained in:

NeilBrown 2018-04-12 07:54:48 +10:00 • committed by Greg Kroah-Hartman

parent 0d1a9d0f17

commit ac2370ac2b

3 changed files with 64 additions and 107 deletions

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4

drivers/staging/lustre/lustre/include/lustre_net.h

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3

drivers/staging/lustre/lustre/include/obd_support.h

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164

drivers/staging/lustre/lustre/ptlrpc/connection.c

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