| 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
| ||
|
Date: Wed, 26 May 2010 19:53:53 +0800 From: Changli Gao <xiaosuo@...il.com> To: Miklos Szeredi <miklos@...redi.hu> Cc: viro@...iv.linux.org.uk, linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH 2/3] splice: allow non-block splice only when in file is seekable On Wed, May 26, 2010 at 6:29 PM, Miklos Szeredi <miklos@...redi.hu> wrote: > On Wed, 26 May 2010, Changli Gao wrote: >> allow non-block splice only when in file is seekable. >> >> do_splice_to() is split to two parts: read data from in file to spd, and move >> data from spd to pipe. If there isn't much space in pipe for the data in spd, >> and the splice is called with non-block flag, the data dropped due to non >> enough space in pipe will be lost forever when in file isn't seekable. > > This is a gratuitous ABI change. I don't think we should hold the > hand of application writers, Yea, it is an ABI change. But without that, we'll fail user silently currently. Some fundamental change is needed to fix this issue fully, if you think it is a bug. > maybe they _know_ the splice will not > block. > If they know the splice won't block, why he specifies a non-block flag? -- Regards， Changli Gao(xiaosuo@...il.com) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists