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From: Josh Triplett <josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org>
To: David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
Cc: pieter-qeJ+1H9vRZbz+pZb47iToQ@public.gmane.org,
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Subject: Re: [PATCH 0/6] kernel tinification: optionally compile out splice family of syscalls (splice, vmsplice, tee and sendfile)
Date: Sun, 23 Nov 2014 11:43:26 -0800	[thread overview]
Message-ID: <20141123194326.GB8517@thin> (raw)
In-Reply-To: <20141123.134623.2061031332250984539.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>

On Sun, Nov 23, 2014 at 01:46:23PM -0500, David Miller wrote:
> Truly removing sendfile/sendpage means that you can't even compile NFS
> into the tree.

If you mean the in-kernel nfsd (CONFIG_NFSD), that already has a large
stack of "select" and "depends on", both directly and indirectly; adding
a "select SPLICE_SYSCALL" to it seems fine.  (That select does need
adding, though.  Pieter, you need to test-compile more than just
tinyconfig and defconfig.  Try an allyesconfig with *just* splice turned
off, and make sure that compiles.)

Given the requirements of running a file server in the kernel, I'd
expect CONFIG_NFSD to end up with several more selects of optional
functionality in the future.  It seems rather likely that the average
embedded system will be compiling out NFS. :)

Also, this patch series compiles out splice and sendfile, including
several *users* of sendpage; it doesn't compile out the sendpage
support/infrastructure itself.

- Josh Triplett

  parent reply	other threads:[~2014-11-23 19:43 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-11-23 14:20 [PATCH 0/6] kernel tinification: optionally compile out splice family of syscalls (splice, vmsplice, tee and sendfile) Pieter Smith
2014-11-23 14:20 ` [PATCH 2/6] fs: moved kernel_write to fs/read_write Pieter Smith
2014-11-23 14:20 ` [PATCH 3/6] fs/splice: support compiling out splice-family syscalls Pieter Smith
2014-11-23 14:20 ` [PATCH 4/6] fs/fuse: support compiling out splice Pieter Smith
     [not found]   ` <1416752468-1626-5-git-send-email-pieter-qeJ+1H9vRZbz+pZb47iToQ@public.gmane.org>
2014-11-23 22:29     ` [fuse-devel] " Richard Weinberger
2014-11-23 23:23       ` Josh Triplett
2014-11-24  9:49         ` Pieter Smith
2014-11-24 16:05           ` Josh Triplett
2014-11-24 19:34             ` Greg KH
     [not found]               ` <20141124193412.GB31618-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-11-24 20:14                 ` josh-iaAMLnmF4UmaiuxdJuQwMA
2014-11-24 20:22                   ` Greg KH
     [not found]                     ` <20141124202214.GA11362-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-11-24 21:49                       ` Pieter Smith
     [not found] ` <1416752468-1626-1-git-send-email-pieter-qeJ+1H9vRZbz+pZb47iToQ@public.gmane.org>
2014-11-23 14:20   ` [PATCH 1/6] fs: move sendfile syscall into fs/splice Pieter Smith
2014-11-23 14:20   ` [PATCH 5/6] net/core: support compiling out splice Pieter Smith
2014-11-23 14:20   ` [PATCH 6/6] fs/splice: full support for " Pieter Smith
2014-11-23 18:46   ` [PATCH 0/6] kernel tinification: optionally compile out splice family of syscalls (splice, vmsplice, tee and sendfile) David Miller
     [not found]     ` <20141123.134623.2061031332250984539.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2014-11-23 19:43       ` Josh Triplett [this message]
2014-11-23 20:30         ` Pieter Smith
2014-11-23 23:36           ` Josh Triplett
2014-11-24  0:28             ` Jeff Layton
     [not found]               ` <20141123192810.682a223e-9yPaYZwiELC+kQycOl6kW4xkIHaj4LzF@public.gmane.org>
2014-11-24  0:32                 ` Josh Triplett
2014-11-24 10:01                   ` Pieter Smith
2014-11-24 14:54                     ` Josh Triplett
2014-11-24  8:38             ` Geert Uytterhoeven
     [not found]               ` <CAMuHMdW8gAiyFiPHu-N4Dg_+b6Qg9JXZZ3PqOn=VmZLcEH-Xkg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2014-11-24  9:00                 ` Josh Triplett

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