From: Christoph Hellwig <hch@lst.de>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@lst.de>,
Sagi Grimberg <sagig@dev.mellanox.co.il>,
viro@zeniv.linux.org.uk, axboe@fb.com, milosz@adfin.com,
linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
linux-api@vger.kernel.org
Subject: Re: selective block polling and preadv2/pwritev2 revisited V3
Date: Thu, 3 Mar 2016 17:11:40 +0100 [thread overview]
Message-ID: <20160303161140.GA26015@lst.de> (raw)
In-Reply-To: <2369295.6CpmrvqZVS@wuerfel>
On Thu, Mar 03, 2016 at 04:52:55PM +0100, Arnd Bergmann wrote:
> If we decide to revise the asm-generic/unistd.h system call list
> for future architecture ports, can the syscalls replace all of
> read/write/readv/writev/pread64/write64/preadv/pwritev, or would
> it be better to keep all of them around indefinitely?
It does replace all off them fully. I never quite understood
why having the wrappers is better in libc than the kernel, though.
prev parent reply other threads:[~2016-03-03 16:11 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-03 15:03 generic RDMA READ/WRITE API V2 Christoph Hellwig
2016-03-03 15:03 ` Christoph Hellwig
[not found] ` <1457017443-17662-1-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-03-03 15:03 ` [PATCH 1/6] vfs: pass a flags argument to vfs_readv/vfs_writev Christoph Hellwig
2016-03-03 15:03 ` Christoph Hellwig
2016-03-03 15:04 ` [PATCH 3/6] x86: wire up preadv2 and pwritev2 Christoph Hellwig
2016-03-03 15:04 ` Christoph Hellwig
2016-03-03 15:04 ` [PATCH 4/6] vfs: add the RWF_HIPRI flag for preadv2/pwritev2 Christoph Hellwig
2016-03-03 15:04 ` Christoph Hellwig
[not found] ` <1457017443-17662-5-git-send-email-hch-jcswGhMUV9g@public.gmane.org>
2016-05-08 21:47 ` NeilBrown
2016-05-08 21:47 ` NeilBrown
[not found] ` <874ma8usrr.fsf-wvvUuzkyo1HefUI2i7LXDhCRmIWqnp/j@public.gmane.org>
2016-05-11 8:55 ` Christoph Hellwig
2016-05-11 8:55 ` Christoph Hellwig
2016-03-03 15:04 ` [PATCH 5/6] direct-io: only use block polling if explicitly requested Christoph Hellwig
2016-03-03 15:04 ` Christoph Hellwig
2016-03-03 15:03 ` [PATCH 2/6] vfs: vfs: Define new syscalls preadv2,pwritev2 Christoph Hellwig
2016-03-10 18:15 ` Michael Kerrisk (man-pages)
[not found] ` <56E1B9A8.3070904-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-03-11 9:53 ` Christoph Hellwig
2016-03-11 9:53 ` Christoph Hellwig
[not found] ` <20160311095357.GA29350-jcswGhMUV9g@public.gmane.org>
2016-04-18 13:51 ` Michael Kerrisk (man-pages)
2016-04-18 13:51 ` Michael Kerrisk (man-pages)
[not found] ` <5714E676.4090007-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-04-25 8:47 ` Christoph Hellwig
2016-04-25 8:47 ` Christoph Hellwig
[not found] ` <20160425084715.GA29255-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2016-04-25 17:35 ` Michael Kerrisk (man-pages)
2016-04-25 17:35 ` Michael Kerrisk (man-pages)
2016-05-08 9:29 ` Christoph Hellwig
2016-03-03 15:04 ` [PATCH 6/6] blk-mq: enable polling support by default Christoph Hellwig
2016-03-03 15:09 ` generic RDMA READ/WRITE API V2 Sagi Grimberg
2016-03-03 15:09 ` Sagi Grimberg
2016-03-03 15:11 ` selective block polling and preadv2/pwritev2 revisited V3 Christoph Hellwig
2016-03-03 15:16 ` Jens Axboe
2016-03-03 15:16 ` Jens Axboe
[not found] ` <20160303151116.GA24614-jcswGhMUV9g@public.gmane.org>
2016-03-03 15:52 ` Arnd Bergmann
2016-03-03 15:52 ` Arnd Bergmann
2016-03-03 16:11 ` Christoph Hellwig [this message]
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