linux-kernel - Re: [PATCH 2/2] x86/sgx: Add sgx_nr_{all, free}

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Date:   Sun, 4 Apr 2021 18:53:52 +0300
From:   Jarkko Sakkinen <jarkko@...nel.org>
To:     Dave Hansen <dave.hansen@...el.com>
Cc:     linux-sgx@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] x86/sgx: Add sgx_nr_{all, free}_pages to the debugfs

On Thu, Apr 01, 2021 at 12:32:58PM -0700, Dave Hansen wrote:
> On 3/31/21 10:21 PM, Jarkko Sakkinen wrote:
> > +#ifdef CONFIG_DEBUG_FS
> > +	debugfs_create_file("sgx_nr_all_pages", 0400, arch_debugfs_dir, NULL,
> > +			    &sgx_nr_all_pages_fops);
> > +	debugfs_create_file("sgx_nr_free_pages", 0400, arch_debugfs_dir, NULL,
> > +			    &sgx_nr_free_pages_fops);
> > +#endif /* CONFIG_DEBUG_FS */
> 
> 
> Why not make the types u64's and use debugfs_create_u64()?  That would
> save a ton of code.  There's also debugfs_create_ulong().

Because I was not aware of that. For sure can be used.

/Jarkko