Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932992AbcK1VmS (ORCPT ); Mon, 28 Nov 2016 16:42:18 -0500 Received: from mail-wj0-f193.google.com ([209.85.210.193]:35610 "EHLO mail-wj0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755568AbcK1Vjp (ORCPT ); Mon, 28 Nov 2016 16:39:45 -0500 From: =?UTF-8?q?Matias=20Bj=C3=B8rling?= To: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org Cc: axboe@fb.com, =?UTF-8?q?Javier=20Gonz=C3=A1lez?= , =?UTF-8?q?Javier=20Gonz=C3=A1lez?= , =?UTF-8?q?Matias=20Bj=C3=B8rling?= Subject: [PATCH 08/23] lightnvm: remove sysfs configuration interface Date: Mon, 28 Nov 2016 22:38:59 +0100 Message-Id: <20161128213914.12516-9-m@bjorling.me> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20161128213914.12516-1-m@bjorling.me> References: <20161128213914.12516-1-m@bjorling.me> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3771 Lines: 159 From: Javier González LightNVM used to be managed and configured through sysfs. Since the introduction of management ioctls this interface is redundant and outdated. Get rid of it. Signed-off-by: Javier González Signed-off-by: Matias Bjørling --- drivers/lightnvm/core.c | 134 ------------------------------------------------ 1 file changed, 134 deletions(-) diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index 6527cf6..d4433d3 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -780,140 +780,6 @@ static int __nvm_configure_create(struct nvm_ioctl_create *create) return dev->mt->create_tgt(dev, create); } -#ifdef CONFIG_NVM_DEBUG -static int nvm_configure_show(const char *val) -{ - struct nvm_dev *dev; - char opcode, devname[DISK_NAME_LEN]; - int ret; - - ret = sscanf(val, "%c %32s", &opcode, devname); - if (ret != 2) { - pr_err("nvm: invalid command. Use \"opcode devicename\".\n"); - return -EINVAL; - } - - down_write(&nvm_lock); - dev = nvm_find_nvm_dev(devname); - up_write(&nvm_lock); - if (!dev) { - pr_err("nvm: device not found\n"); - return -EINVAL; - } - - if (!dev->mt) - return 0; - - dev->mt->lun_info_print(dev); - - return 0; -} - -static int nvm_configure_remove(const char *val) -{ - struct nvm_ioctl_remove remove; - struct nvm_dev *dev; - char opcode; - int ret = 0; - - ret = sscanf(val, "%c %256s", &opcode, remove.tgtname); - if (ret != 2) { - pr_err("nvm: invalid command. Use \"d targetname\".\n"); - return -EINVAL; - } - - remove.flags = 0; - - list_for_each_entry(dev, &nvm_devices, devices) { - ret = dev->mt->remove_tgt(dev, &remove); - if (!ret) - break; - } - - return ret; -} - -static int nvm_configure_create(const char *val) -{ - struct nvm_ioctl_create create; - char opcode; - int lun_begin, lun_end, ret; - - ret = sscanf(val, "%c %256s %256s %48s %u:%u", &opcode, create.dev, - create.tgtname, create.tgttype, - &lun_begin, &lun_end); - if (ret != 6) { - pr_err("nvm: invalid command. Use \"opcode device name tgttype lun_begin:lun_end\".\n"); - return -EINVAL; - } - - create.flags = 0; - create.conf.type = NVM_CONFIG_TYPE_SIMPLE; - create.conf.s.lun_begin = lun_begin; - create.conf.s.lun_end = lun_end; - - return __nvm_configure_create(&create); -} - - -/* Exposes administrative interface through /sys/module/lnvm/configure_by_str */ -static int nvm_configure_by_str_event(const char *val, - const struct kernel_param *kp) -{ - char opcode; - int ret; - - ret = sscanf(val, "%c", &opcode); - if (ret != 1) { - pr_err("nvm: string must have the format of \"cmd ...\"\n"); - return -EINVAL; - } - - switch (opcode) { - case 'a': - return nvm_configure_create(val); - case 'd': - return nvm_configure_remove(val); - case 's': - return nvm_configure_show(val); - default: - pr_err("nvm: invalid command\n"); - return -EINVAL; - } - - return 0; -} - -static int nvm_configure_get(char *buf, const struct kernel_param *kp) -{ - int sz; - struct nvm_dev *dev; - - sz = sprintf(buf, "available devices:\n"); - down_write(&nvm_lock); - list_for_each_entry(dev, &nvm_devices, devices) { - if (sz > 4095 - DISK_NAME_LEN - 2) - break; - sz += sprintf(buf + sz, " %32s\n", dev->name); - } - up_write(&nvm_lock); - - return sz; -} - -static const struct kernel_param_ops nvm_configure_by_str_event_param_ops = { - .set = nvm_configure_by_str_event, - .get = nvm_configure_get, -}; - -#undef MODULE_PARAM_PREFIX -#define MODULE_PARAM_PREFIX "lnvm." - -module_param_cb(configure_debug, &nvm_configure_by_str_event_param_ops, NULL, - 0644); - -#endif /* CONFIG_NVM_DEBUG */ - static long nvm_ioctl_info(struct file *file, void __user *arg) { struct nvm_ioctl_info *info; -- 2.9.3