From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752056AbcEYNcs (ORCPT ); Wed, 25 May 2016 09:32:48 -0400 Received: from mail-pf0-f196.google.com ([209.85.192.196]:35469 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750765AbcEYNcq (ORCPT ); Wed, 25 May 2016 09:32:46 -0400 From: Sergey Senozhatsky To: Minchan Kim Cc: Andrew Morton , Joonsoo Kim , linux-kernel@vger.kernel.org, Sergey Senozhatsky , Sergey Senozhatsky Subject: [PATCH 0/7] zram: switch to crypto api Date: Wed, 25 May 2016 23:29:59 +0900 Message-Id: <20160525143006.1207-1-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.8.3.394.g3916adf Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, This has started as a 'add zlib support' work, but after some thinking I saw no blockers for a bigger change -- a switch to crypto API. We don't have an idle zstreams list anymore and our write path now works absolutely differently, preventing preemption during compression. This removes possibilities of read paths preempting writes at wrong places and opens the door for a move from custom LZO/LZ4 compression backends implementation to a more generic one, using crypto compress API. This patch set also eliminates the need of a new context-less crypto API interface, which was quite hard to sell, so we can move along faster. Sergey Senozhatsky (7): zram: rename zstrm find-release functions zram: switch to crypto compress API zram: drop zcomp param from compress/decompress zram: align zcomp interface to crypto comp API zram: use crypto api to check alg availability zram: delete custom lzo/lz4 zram: add more compression algorithms drivers/block/zram/Kconfig | 15 +------ drivers/block/zram/Makefile | 4 +- drivers/block/zram/zcomp.c | 91 +++++++++++++++++++++++++++--------------- drivers/block/zram/zcomp.h | 29 ++++---------- drivers/block/zram/zcomp_lz4.c | 56 -------------------------- drivers/block/zram/zcomp_lz4.h | 17 -------- drivers/block/zram/zcomp_lzo.c | 56 -------------------------- drivers/block/zram/zcomp_lzo.h | 17 -------- drivers/block/zram/zram_drv.c | 26 +++++++----- 9 files changed, 84 insertions(+), 227 deletions(-) delete mode 100644 drivers/block/zram/zcomp_lz4.c delete mode 100644 drivers/block/zram/zcomp_lz4.h delete mode 100644 drivers/block/zram/zcomp_lzo.c delete mode 100644 drivers/block/zram/zcomp_lzo.h -- 2.8.3.394.g3916adf