From: Andrew Morton <akpm@linux-foundation.org>
To: Christoph Hellwig <hch@lst.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] exec: open code copy_string_kernel
Date: Fri, 1 May 2020 14:19:03 -0700 [thread overview]
Message-ID: <20200501141903.5f7b1f81fdd38ae372d91f0e@linux-foundation.org> (raw)
In-Reply-To: <20200501104105.2621149-3-hch@lst.de>
On Fri, 1 May 2020 12:41:05 +0200 Christoph Hellwig <hch@lst.de> wrote:
> Currently copy_string_kernel is just a wrapper around copy_strings that
> simplifies the calling conventions and uses set_fs to allow passing a
> kernel pointer. But due to the fact the we only need to handle a single
> kernel argument pointer, the logic can be sigificantly simplified while
> getting rid of the set_fs.
>
I don't get why this is better? copy_strings() is still there and
won't be going away - what's wrong with simply reusing it in this
fashion?
I guess set_fs() is a bit hacky, but there's the benefit of not having
to maintain two largely similar bits of code?
next prev parent reply other threads:[~2020-05-01 21:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-01 10:41 remove set_fs from copy_strings_kernel Christoph Hellwig
2020-05-01 10:41 ` [PATCH 1/2] exec: simplify the copy_strings_kernel calling convention Christoph Hellwig
2020-05-01 10:41 ` [PATCH 2/2] exec: open code copy_string_kernel Christoph Hellwig
2020-05-01 12:50 ` Al Viro
2020-05-01 19:26 ` Christoph Hellwig
2020-05-01 21:43 ` Al Viro
2020-05-01 21:19 ` Andrew Morton [this message]
2020-05-01 21:30 ` Al Viro
2020-05-01 21:40 ` Andrew Morton
2020-05-01 22:04 ` Al Viro
2020-05-02 6:23 ` Christoph Hellwig
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