linux-kernel - Re: [PATCH 3/3] perf/buildid-cache: Support --purge-all option

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Message-ID: <20180416103017.GB23274@krava>
Date:   Mon, 16 Apr 2018 12:30:17 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com>
Cc:     Masami Hiramatsu <mhiramat@...nel.org>, acme@...hat.com,
        kstewart@...uxfoundation.org, tglx@...utronix.de,
        pombredanne@...b.com, linux-kernel@...r.kernel.org,
        peterz@...radead.org, mingo@...hat.com,
        alexander.shishkin@...ux.intel.com, namhyung@...nel.org,
        uneedsihyeon@...il.com, kjlx@...pleofstupid.com,
        ravi Bangoria <ravi.bangoria@...ux.ibm.com>
Subject: Re: [PATCH 3/3] perf/buildid-cache: Support --purge-all option

On Mon, Apr 16, 2018 at 03:10:40PM +0530, Ravi Bangoria wrote:
> Hi Masami,
> 
> On 04/16/2018 02:57 PM, Masami Hiramatsu wrote:
> > On Mon,  9 Apr 2018 16:36:33 +0530
> > Ravi Bangoria <ravi.bangoria@...ux.vnet.ibm.com> wrote:
> >
> >> User can remove files from cache using --remove/--purge options
> >> but both needs list of files as an argument. It's not convenient
> >> when you want to flush out entire cache. Add an option to purge
> >> all files from cache.
> >>
> >> Ex,
> >>   # perf buildid-cache -l
> >>     /tmp/a.out (8a86ef73e44067bca52cc3f6cd3e5446c783391c)
> >>     /tmp/a.out.1 (ebe71fdcf4b366518cc154d570a33cd461a51c36)
> >>   # perf buildid-cache -P -v
> >>     Removing /tmp/a.out (8a86ef73e44067bca52cc3f6cd3e5446c783391c): Ok
> >>     Removing /tmp/a.out.1 (ebe71fdcf4b366518cc154d570a33cd461a51c36): Ok
> >>     Purged all: Ok
> > Hmm, for purging all caches will be done by
> >
> > $ rm -rf ~/.debug
> >
> > Are there any difference?
> 
> No logical difference if you know it's ~/.debug where it goes. :)
> I also used to do rm -rf earlier.
> 
> This option is for a perf users. But I'm fine if it's not really needed.
> Will drop it.

I'd keep it.. as you said it could be configured at some other dir

jirka