From: Josh Triplett <josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org>
To: David Miller <davem-fT/PcQaiUtIeIZ0/mPfg9Q@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
WARNING: multiple messages have this Message-ID (diff)
From: Josh Triplett <josh@joshtriplett.org>
To: David Miller <davem@davemloft.net>
Cc: pieter@boesman.nl, alexander.h.duyck@intel.com,
viro@zeniv.linux.org.uk, ast@plumgrid.com,
akpm@linux-foundation.org, beber@meleeweb.net,
catalina.mocanu@gmail.com, dborkman@redhat.com,
edumazet@google.com, ebiederm@xmission.com, fabf@skynet.be,
fuse-devel@lists.sourceforge.net, geert@linux-m68k.org,
hughd@google.com, iulia.manda21@gmail.com, JBeulich@suse.com,
bfields@fieldses.org, jlayton@poochiereds.net,
linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, mcgrof@suse.com,
mattst88@gmail.com, mgorman@suse.de, mst@redhat.com,
miklos@szeredi.hu, netdev@vger.kernel.org, oleg@redhat.com,
Paul.Durrant@citrix.com, paulmck@linux.vnet.ibm.com,
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willemb@google.com, xiaoguangrong@linux.vnet.ibm.com,
zhenglong.cai@cs2c.com.cn
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@davemloft.net>
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
next prev parent reply other threads:[~2014-11-23 19:43 UTC|newest]
Thread overview: 55+ 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 ` Pieter Smith
2014-11-23 14:20 ` 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 ` Pieter Smith
2014-11-23 14:20 ` 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 ` Pieter Smith
2014-11-23 14:20 ` Pieter Smith
2014-11-23 14:20 ` [PATCH 4/6] fs/fuse: support compiling out splice Pieter Smith
2014-11-23 14:20 ` Pieter Smith
2014-11-23 14:20 ` 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 22:29 ` Richard Weinberger
2014-11-23 23:23 ` Josh Triplett
2014-11-23 23:23 ` Josh Triplett
2014-11-24 9:49 ` Pieter Smith
2014-11-24 9:49 ` Pieter Smith
2014-11-24 16:05 ` Josh Triplett
2014-11-24 16:05 ` Josh Triplett
2014-11-24 19:34 ` Greg KH
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 20:14 ` josh
2014-11-24 20:22 ` Greg KH
2014-11-24 20:22 ` Greg KH
[not found] ` <20141124202214.GA11362-U8xfFu+wG4EAvxtiuMwx3w@public.gmane.org>
2014-11-24 21:49 ` Pieter Smith
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 ` Pieter Smith
2014-11-23 14:20 ` Pieter Smith
2014-11-23 14:20 ` [PATCH 5/6] net/core: support compiling out splice Pieter Smith
2014-11-23 14:20 ` Pieter Smith
2014-11-23 14:20 ` [PATCH 6/6] fs/splice: full support for " Pieter Smith
2014-11-23 14:20 ` 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
2014-11-23 18:46 ` 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 19:43 ` Josh Triplett
2014-11-23 20:30 ` Pieter Smith
2014-11-23 23:36 ` Josh Triplett
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 0:32 ` Josh Triplett
2014-11-24 10:01 ` Pieter Smith
2014-11-24 10:01 ` Pieter Smith
2014-11-24 14:54 ` Josh Triplett
2014-11-24 14:54 ` Josh Triplett
2014-11-24 8:38 ` Geert Uytterhoeven
2014-11-24 8:38 ` Geert Uytterhoeven
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
2014-11-24 9:00 ` Josh Triplett
2014-11-24 9:00 ` Josh Triplett
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