Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932757AbaJ2MqO (ORCPT ); Wed, 29 Oct 2014 08:46:14 -0400 Received: from mail.sigma-star.at ([95.130.255.111]:14386 "EHLO mail.sigma-star.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932653AbaJ2MqK (ORCPT ); Wed, 29 Oct 2014 08:46:10 -0400 From: Richard Weinberger To: dedekind1@gmail.com Cc: linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, tlinder@codeaurora.org, Richard Weinberger Subject: [PATCH 01/35] UBI: Add initial support for fastmap self checks Date: Wed, 29 Oct 2014 13:45:24 +0100 Message-Id: <1414586758-9972-2-git-send-email-richard@nod.at> X-Mailer: git-send-email 1.8.4.5 In-Reply-To: <1414586758-9972-1-git-send-email-richard@nod.at> References: <1414586758-9972-1-git-send-email-richard@nod.at> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Using this debugfs knob fastmap self checks can be controlled. Signed-off-by: Richard Weinberger --- drivers/mtd/ubi/debug.c | 11 +++++++++++ drivers/mtd/ubi/debug.h | 5 +++++ drivers/mtd/ubi/ubi.h | 4 ++++ 3 files changed, 20 insertions(+) diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c index 63cb1d7..ea9be20 100644 --- a/drivers/mtd/ubi/debug.c +++ b/drivers/mtd/ubi/debug.c @@ -275,6 +275,8 @@ static ssize_t dfs_file_read(struct file *file, char __user *user_buf, val = d->chk_gen; else if (dent == d->dfs_chk_io) val = d->chk_io; + else if (dent == d->dfs_chk_fastmap) + val = d->chk_fastmap; else if (dent == d->dfs_disable_bgt) val = d->disable_bgt; else if (dent == d->dfs_emulate_bitflips) @@ -336,6 +338,8 @@ static ssize_t dfs_file_write(struct file *file, const char __user *user_buf, d->chk_gen = val; else if (dent == d->dfs_chk_io) d->chk_io = val; + else if (dent == d->dfs_chk_fastmap) + d->chk_fastmap = val; else if (dent == d->dfs_disable_bgt) d->disable_bgt = val; else if (dent == d->dfs_emulate_bitflips) @@ -406,6 +410,13 @@ int ubi_debugfs_init_dev(struct ubi_device *ubi) goto out_remove; d->dfs_chk_io = dent; + fname = "chk_fastmap"; + dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, (void *)ubi_num, + &dfs_fops); + if (IS_ERR_OR_NULL(dent)) + goto out_remove; + d->dfs_chk_fastmap = dent; + fname = "tst_disable_bgt"; dent = debugfs_create_file(fname, S_IWUSR, d->dfs_dir, (void *)ubi_num, &dfs_fops); diff --git a/drivers/mtd/ubi/debug.h b/drivers/mtd/ubi/debug.h index cba89fc..e99ef37 100644 --- a/drivers/mtd/ubi/debug.h +++ b/drivers/mtd/ubi/debug.h @@ -127,4 +127,9 @@ static inline int ubi_dbg_chk_gen(const struct ubi_device *ubi) { return ubi->dbg.chk_gen; } + +static inline int ubi_dbg_chk_fastmap(const struct ubi_device *ubi) +{ + return ubi->dbg.chk_fastmap; +} #endif /* !__UBI_DEBUG_H__ */ diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h index 320fc38..f80a726 100644 --- a/drivers/mtd/ubi/ubi.h +++ b/drivers/mtd/ubi/ubi.h @@ -352,6 +352,7 @@ struct ubi_wl_entry; * * @chk_gen: if UBI general extra checks are enabled * @chk_io: if UBI I/O extra checks are enabled + * @chk_fastmap: if UBI fastmap extra checks are enabled * @disable_bgt: disable the background task for testing purposes * @emulate_bitflips: emulate bit-flips for testing purposes * @emulate_io_failures: emulate write/erase failures for testing purposes @@ -359,6 +360,7 @@ struct ubi_wl_entry; * @dfs_dir: direntry object of the UBI device debugfs directory * @dfs_chk_gen: debugfs knob to enable UBI general extra checks * @dfs_chk_io: debugfs knob to enable UBI I/O extra checks + * @dfs_chk_fastmap: debugfs knob to enable UBI fastmap extra checks * @dfs_disable_bgt: debugfs knob to disable the background task * @dfs_emulate_bitflips: debugfs knob to emulate bit-flips * @dfs_emulate_io_failures: debugfs knob to emulate write/erase failures @@ -366,6 +368,7 @@ struct ubi_wl_entry; struct ubi_debug_info { unsigned int chk_gen:1; unsigned int chk_io:1; + unsigned int chk_fastmap:1; unsigned int disable_bgt:1; unsigned int emulate_bitflips:1; unsigned int emulate_io_failures:1; @@ -373,6 +376,7 @@ struct ubi_debug_info { struct dentry *dfs_dir; struct dentry *dfs_chk_gen; struct dentry *dfs_chk_io; + struct dentry *dfs_chk_fastmap; struct dentry *dfs_disable_bgt; struct dentry *dfs_emulate_bitflips; struct dentry *dfs_emulate_io_failures; -- 1.8.4.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/