From mboxrd@z Thu Jan 1 00:00:00 1970 From: guijianfeng@cn.fujitsu.com (Gui Jianfeng) Date: Thu, 22 Jan 2009 17:56:55 +0800 Subject: [ltt-dev] move marker-control file into debugfs In-Reply-To: <496AA1F5.1070106@cn.fujitsu.com> References: <496A9AE3.5050004@cn.fujitsu.com> <20090112014503.GB23423@Krystal> <496AA1F5.1070106@cn.fujitsu.com> Message-ID: <497842E7.2070005@cn.fujitsu.com> Hi Mathieu, Lai and I will be on vocation unitl 2/2, might be untouched. It's chinese new year. I'll post a patch to implement debugfs marker-control then. Gui Jianfeng wrote: > Mathieu Desnoyers wrote: >> * Gui Jianfeng (guijianfeng at cn.fujitsu.com) wrote: >>> Hi Mathieu, >>> >>> I'd like to move "/proc/ltt" into debugfs. How do >>> you think of that? If you don't object, i'll post >>> a patch later, and update ltt-arm and other relative >>> tools. >>> >> Yes, this should be done. Please have a look at the discussion I had >> with Zhaolei on this. It was on the ltt-dev ML. >> >> Basically, the idea is to change the semantics a bit. The following >> directory tree would be great : >> >> /mnt/debugfs/ltt/markers/ >> / >> / >> >> And within each individual / directory, we would have >> those files : >> >> enabled (write, takes Y, y, 1 or N, n, 0. See ltt-trace-control.c.) >> (read, prints 1 or 0) >> >> We may want to remove the ability to connect markers to specific probes. >> Markers would always be only connected to the default serializer. >> Markers using ltt-type-serializer does not use the probe pointer anyway. >> >> We will probably want to let the >> kernel/marker.c:add_marker()/remove_marker() code call into the debugfs >> interface code to update the directory tree accordingly. > > Thanks for your comments, i'll see what i can do. > >> Regards, >> >> Mathieu >> >> >>> -- >>> Regards >>> Gui Jianfeng >>> >>> >>> _______________________________________________ >>> ltt-dev mailing list >>> ltt-dev at lists.casi.polymtl.ca >>> http://lists.casi.polymtl.ca/cgi-bin/mailman/listinfo/ltt-dev >>> > -- Regards Gui Jianfeng