https://lwn.net/Articles/322668/ This is a special feed containing comments posted to the individual LWN article titled "A superficial introduction to fsblock". en-us Mon, 20 Oct 2025 17:41:34 +0000 Mon, 20 Oct 2025 17:41:34 +0000 https://www.rssboard.org/rss-specification lwn@lwn.net https://lwn.net/Articles/322899/ https://lwn.net/Articles/322899/ axboe <div class="FormattedComment"> Not sure about your description of very small I/O units and buffer_heads. A single buffer_head can map a full page, it's only if you have a 512b file system block size that you get them linked. Which is not a huge surprise, since they represent the on-disk block mapping. But for "normal" 4kb block size file systems, you only get one bh per page.<br> </div> Thu, 12 Mar 2009 12:54:03 +0000