From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.nokia.com ([131.228.20.172] helo=mgw-ext13.nokia.com) by bombadil.infradead.org with esmtps (Exim 4.68 #1 (Red Hat Linux)) id 1IvUjr-00016k-Lj for linux-mtd@lists.infradead.org; Fri, 23 Nov 2007 04:22:25 -0500 Subject: Re: Some news for this: [PATCH] [MTD] BLOCK_RO: Readonly Block Device Layer Over MTD ? From: Artem Bityutskiy To: Ricard Wanderlof In-Reply-To: References: <305035a40711210627p1ea1f2c0me1ee1f8e8d124552@mail.gmail.com> <20071121160804.GC20871@lazybastard.org> <305035a40711210828k65174f44t3d64e9ee33fe26bf@mail.gmail.com> <20071121105817.3adbfbb5@weaponx> <20071121213257.GI20871@lazybastard.org> <305035a40711211433x9054a11r11636ad708a325cd@mail.gmail.com> <20071121225425.GA24327@lazybastard.org> <20071122132650.GA27525@lazybastard.org> <1195805904.3231.87.camel@sauron> Content-Type: text/plain; charset=utf-8 Date: Fri, 23 Nov 2007 11:21:52 +0200 Message-Id: <1195809712.3231.96.camel@sauron> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Cc: =?ISO-8859-1?Q?J=F6rn?= Engel , Linux mtd Reply-To: dedekind@infradead.org List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Fri, 2007-11-23 at 10:08 +0100, Ricard Wanderlof wrote: > Does UBI periodically scan the flash for bit flips, or is the scrubbing=20 > mechanism only triggered when an mtd_read() is done by a higher layer? No, it does not do any background scanning for bit-flips. The second is true. If one needs some scanning, it may be implemented by making a users-space script run by cron daemon I guess. --=20 Best regards, Artem Bityutskiy (=D0=91=D0=B8=D1=82=D1=8E=D1=86=D0=BA=D0=B8=D0=B9 =D0=90= =D1=80=D1=82=D1=91=D0=BC)