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Message-ID: <1280599521.2720.5.camel@segv.aura.of.mankind> Date: Sat, 31 Jul 2010 20:05:21 +0200 From: utz lehmann <lkml123@...4n2c.de> To: David Howells <dhowells@...hat.com> Cc: Linus Torvalds <torvalds@...ux-foundation.org>, Jeremy Allison <jra@...ba.org>, Volker.Lendecke@...net.de, Jan Engelhardt <jengelh@...ozas.de>, linux-cifs@...r.kernel.org, linux-nfs@...r.kernel.org, samba-technical@...ts.samba.org, linux-kernel@...r.kernel.org, viro@...iv.linux.org.uk, linux-fsde@...per.es Subject: Re: [PATCH 02/18] xstat: Add a pair of system calls to make extended file stats available [ver #6] On Sat, 2010-07-31 at 17:53 +0100, David Howells wrote: > utz lehmann <lkml123@...4n2c.de> wrote: > > > When abusing an existing time stamp use atime not ctime please. > > ctime has it's uses. atime was just a mistake and is nearly useless. > > CacheFiles currently uses atime to determine least-recently-usedness. How does this works right with noatime or relatime (which is default)? We had used FS-Cache with a few 10000s files cached. Doesn't it mean that the cleanup has to stat them all? Why didn't cachefilesd managed the cache index in a separate database like other caches? -- 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/
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