linux-kernel - Re: [PATCH 1/1] block: Check the queue limit before bio submitting

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ZUSsJbcSPSR52J2l@infradead.org>
Date:   Fri, 3 Nov 2023 01:15:33 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Ed Tsai (蔡宗軒) <Ed.Tsai@...iatek.com>
Cc:     "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "angelogioacchino.delregno@...labora.com" 
        <angelogioacchino.delregno@...labora.com>,
        "axboe@...nel.dk" <axboe@...nel.dk>,
        Will Shiu (許恭瑜) <Will.Shiu@...iatek.com>,
        Peter Wang (王信友) 
        <peter.wang@...iatek.com>,
        "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Alice Chao (趙珮均) 
        <Alice.Chao@...iatek.com>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        wsd_upstream <wsd_upstream@...iatek.com>,
        Casper Li (李中榮) <casper.li@...iatek.com>,
        Chun-Hung Wu (巫駿宏) 
        <Chun-hung.Wu@...iatek.com>,
        Powen Kao (高伯文) <Powen.Kao@...iatek.com>,
        Naomi Chu (朱詠田) <Naomi.Chu@...iatek.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Stanley Chu (朱原陞) 
        <stanley.chu@...iatek.com>
Subject: Re: [PATCH 1/1] block: Check the queue limit before bio submitting

You need to look into the splitting code to see why the splits are
suboptimal for your device.  We can't limit the upper bio size as
we have code relying on it not having arbitrary limits.