From: Artem Bityutskiy <dedekind@infradead.org>
To: linux-fsdevel@vger.kernel.org
Cc: linux-mtd@lists.infradead.org,
Adrian Hunter <ext-adrian.hunter@nokia.com>,
linux-kernel@vger.kernel.org
Subject: Re: What is in ubifs-2.6.git
Date: Tue, 30 Sep 2008 10:56:23 +0300 [thread overview]
Message-ID: <1222761383.8051.5.camel@sauron> (raw)
In-Reply-To: <1222766358-21886-1-git-send-email-dedekind@infradead.org>
On Tue, 2008-09-30 at 12:18 +0300, Artem Bityutskiy wrote:
> addresses. For example, if user-space asks to read page zero of a
> file, and page 0-4 are in consecutive flash addressed, UBIFS reads
> pages 0-4 and populates them to the Page Cache.
Actually this example is a little wrong, because UBIFS starts
doing bulk-read only if few pages were read sequentially before.
So, user would have to read pages 0-3 sequentially, then UBIFS
would start doing bulk-read for this inode.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
WARNING: multiple messages have this Message-ID (diff)
From: Artem Bityutskiy <dedekind@infradead.org>
To: linux-fsdevel@vger.kernel.org
Cc: linux-mtd@lists.infradead.org,
Adrian Hunter <ext-adrian.hunter@nokia.com>,
linux-kernel@vger.kernel.org
Subject: Re: What is in ubifs-2.6.git
Date: Tue, 30 Sep 2008 10:56:23 +0300 [thread overview]
Message-ID: <1222761383.8051.5.camel@sauron> (raw)
In-Reply-To: <1222766358-21886-1-git-send-email-dedekind@infradead.org>
On Tue, 2008-09-30 at 12:18 +0300, Artem Bityutskiy wrote:
> addresses. For example, if user-space asks to read page zero of a
> file, and page 0-4 are in consecutive flash addressed, UBIFS reads
> pages 0-4 and populates them to the Page Cache.
Actually this example is a little wrong, because UBIFS starts
doing bulk-read only if few pages were read sequentially before.
So, user would have to read pages 0-3 sequentially, then UBIFS
would start doing bulk-read for this inode.
--
Best regards,
Artem Bityutskiy (Битюцкий Артём)
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next prev parent reply other threads:[~2008-09-30 7:57 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-30 9:18 What is in ubifs-2.6.git Artem Bityutskiy
2008-09-30 9:18 ` Artem Bityutskiy
2008-09-30 9:18 ` Artem Bityutskiy
2008-09-30 7:56 ` Artem Bityutskiy [this message]
2008-09-30 7:56 ` Artem Bityutskiy
2008-09-30 8:55 ` Amit Kumar Sharma
2008-09-30 9:02 ` Artem Bityutskiy
2008-09-30 9:02 ` Artem Bityutskiy
2008-09-30 9:18 ` [PATCH] UBIFS: add a print, fix comments and more minor stuff Artem Bityutskiy
2008-09-30 9:18 ` Artem Bityutskiy
2008-09-30 9:18 ` [PATCH] UBIFS: remove unneeded unlikely() Artem Bityutskiy
2008-09-30 9:18 ` Artem Bityutskiy
2008-09-30 9:18 ` [PATCH] UBIFS: inline one-line functions Artem Bityutskiy
2008-09-30 9:18 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: use an IS_ERR test rather than a NULL test Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: add bulk-read facility Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: add no_chk_data_crc mount option Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: improve znode splitting rules Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: check data CRC when in error state Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: use bit-fields when possible Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: correct key comparison Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: ensure data read beyond i_size is zeroed out correctly Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: fix races in bit-fields Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: fix commentary Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: update dbg_dump_inode Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: correct comment for commit_on_unmount Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: commit on sync_fs Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: allow for sync_fs when read-only Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: improve garbage collection Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: fix bulk-read handling uptodate pages Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: add more debugging messages for LPT Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: correct condition to eliminate unecessary assignment Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
2008-09-30 9:19 ` [PATCH] UBIFS: check buffer length when scanning for LPT nodes Artem Bityutskiy
2008-09-30 9:19 ` Artem Bityutskiy
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