Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263750AbTEFOmF (ORCPT ); Tue, 6 May 2003 10:42:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263763AbTEFOmF (ORCPT ); Tue, 6 May 2003 10:42:05 -0400 Received: from www1.mail.lycos.com ([209.202.220.140]:20589 "HELO lycos.com") by vger.kernel.org with SMTP id S263750AbTEFOmD (ORCPT ); Tue, 6 May 2003 10:42:03 -0400 To: fdavis@si.rr.com Date: Tue, 06 May 2003 10:52:27 -0400 From: "Sumit Narayan" Message-ID: Mime-Version: 1.0 Cc: linux-kernel@vger.kernel.org X-Sent-Mail: off Reply-To: sumit_uconn@lycos.com X-Mailer: MailCity Service X-Priority: 3 Subject: Re: Write file in EXT2 X-Sender-Ip: 137.99.1.12 Organization: Lycos Mail (http://www.mail.lycos.com:80) Content-Type: text/plain; charset=us-ascii Content-Language: en Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2512 Lines: 74 Hi, Thanks for the details. I wish to know which application access which file, when.. etc etc. I would like to create a log of that. I am unable to write this log to the file from within the kernel. I would not like to go to the user level programs. I am doing this from within the kernel, as I would like to know exactly when things are being done. Regards, Sumit -- On Tue, 06 May 2003 01:06:45 Frank Davis wrote: >Sumit, > >In fact, if you're looking at journalizing ext2, ext3 has already done it. > >Regards, >Frank > >Frank Davis wrote: >> Sumit, >> >> Why do you have to do this in the kernel? I can envision doing printks >> after each read and write call, and having a userland program receive >> the kernel output, storing it into a buffer, and then writing that >> buffer, either using fprintf, or fflush, etc. >> >> Regards, >> Frank >> >> Sumit Narayan wrote: >> >>> Hi, >>> >>> I would like to create a log file containing the reads and writes made >>> on a disk, by adding a function in the kernel. And once this log table >>> reaches a limit, say 10,000 records, I would like it to be written on >>> hard disk automatically. I am unable to do this, since I dont know how >>> to write to a file, while in the kernel. I tried System Calls, but >>> they dont seem to work. Could someone tell me what is the list of >>> functions that I need to use to do this job. I think I have to play >>> with super-blocks and inodes. But I dont know how to do that. :) >>> Please help me. >>> Thanks. >>> Sumit >>> >>> p.s. I am using Kernel 2.4.20 and want this in EXT2 FS >>> >>> >>> ____________________________________________________________ >>> Get advanced SPAM filtering on Webmail or POP Mail ... Get Lycos Mail! >>> http://login.mail.lycos.com/r/referral?aid=27005 >>> - >>> To unsubscribe from this list: send the line "unsubscribe >>> linux-kernel" in >>> the body of a message to majordomo@vger.kernel.org >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> Please read the FAQ at http://www.tux.org/lkml/ >>> >> >> > > > ____________________________________________________________ Get advanced SPAM filtering on Webmail or POP Mail ... Get Lycos Mail! http://login.mail.lycos.com/r/referral?aid=27005 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/