From: Fred Isaman <iisaman@netapp.com>
To: linux-nfs@vger.kernel.org
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Subject: [PATCH 00/26] directio rewrite
Date: Mon, 9 Apr 2012 16:51:58 -0400 [thread overview]
Message-ID: <1334004744-31842-1-git-send-email-iisaman@netapp.com> (raw)
These patches rewrite the directio code to use the same coalesce
and RPC sendoff code as cached io. This allows directio to make
use of the preexisting pnfs code.
There are some limitations at the moment that need to be fixed, but
given the amount of change this patchset introduces I'm
trying to put out as small a base set of patches as possible.
The primary TODOs are:
- Coalescing of bsize<PAGESIZE, while technically correct, is suboptimal.
To fix this I'll need to adjust the *_multi functions to handle
more than a single req
- Unaligned io is not sent to pnfs, as there is no existing code to deal
with a layout boundary (think stripe edge) occurring in the middle
of a nfs_page.
Fred
next reply other threads:[~2012-04-09 20:52 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-04-09 20:51 Fred Isaman [this message]
2012-04-09 20:51 ` [PATCH 01/26] NFS: check for req==NULL in nfs_try_to_update_request cleanup Fred Isaman
2012-04-09 20:52 ` [PATCH 02/26] NFS4.1: make pnfs_ld_[read|write]_done consistent Fred Isaman
2012-04-09 20:52 ` [PATCH 03/26] NFS4.1: Add lseg to struct nfs4_fl_commit_bucket Fred Isaman
2012-04-13 15:47 ` Myklebust, Trond
2012-04-13 16:50 ` Fred Isaman
2012-04-09 20:52 ` [PATCH 04/26] NFS: add a struct nfs_commit_data to replace nfs_write_data in commits Fred Isaman
2012-04-09 20:52 ` [PATCH 05/26] NFS: grab open context in direct read Fred Isaman
2012-04-09 20:52 ` [PATCH 06/26] NFS: dprintks in directio code were referencing task after put Fred Isaman
2012-04-09 20:52 ` [PATCH 07/26] NFS: reverse arg order in nfs_initiate_[read|write] Fred Isaman
2012-04-09 20:52 ` [PATCH 08/26] NFS: remove unnecessary casts of void pointers in nfs4filelayout.c Fred Isaman
2012-04-09 20:52 ` [PATCH 09/26] NFS: use req_offset where appropriate Fred Isaman
2012-04-09 20:52 ` [PATCH 10/26] NFS: put open context on error in nfs_pagein_multi Fred Isaman
2012-04-13 15:52 ` Myklebust, Trond
2012-04-09 20:52 ` [PATCH 11/26] NFS: put open context on error in nfs_flush_multi Fred Isaman
2012-04-13 15:52 ` Myklebust, Trond
2012-04-09 20:52 ` [PATCH 12/26] NFS: create common nfs_pgio_header for both read and write Fred Isaman
2012-04-09 20:52 ` [PATCH 13/26] NFS: create struct nfs_page_array Fred Isaman
2012-04-09 20:52 ` [PATCH 14/26] NFS: merge _full and _partial read rpc_ops Fred Isaman
2012-04-16 20:28 ` Myklebust, Trond
2012-04-17 15:37 ` Fred Isaman
2012-04-17 16:13 ` Myklebust, Trond
2012-04-17 16:16 ` Fred Isaman
2012-04-16 20:41 ` Myklebust, Trond
2012-04-17 15:38 ` Fred Isaman
2012-04-09 20:52 ` [PATCH 15/26] NFS: merge _full and _partial write rpc_ops Fred Isaman
2012-04-09 20:52 ` [PATCH 16/26] NFS: create completion structure to pass into page_init functions Fred Isaman
2012-04-16 21:07 ` Myklebust, Trond
2012-04-09 20:52 ` [PATCH 17/26] NFS: remove unused wb_complete field from struct nfs_page Fred Isaman
2012-04-09 20:52 ` [PATCH 18/26] NFS: prepare coalesce testing for directio Fred Isaman
2012-04-09 20:52 ` [PATCH 19/26] NFS: rewrite directio read to use async coalesce code Fred Isaman
2012-04-16 21:22 ` Myklebust, Trond
2012-04-17 15:41 ` Fred Isaman
2012-04-09 20:52 ` [PATCH 20/26] NFS: create nfs_generic_commit_list Fred Isaman
2012-04-09 20:52 ` [PATCH 21/26] NFS: create struct nfs_commit_info Fred Isaman
2012-04-09 20:52 ` [PATCH 22/26] NFS: create nfs_commit_completion_ops Fred Isaman
2012-04-09 20:52 ` [PATCH 23/26] NFS: add dreq to nfs_commit_info Fred Isaman
2012-04-09 20:52 ` [PATCH 24/26] NFS: avoid some stat gathering for direct io Fred Isaman
2012-04-09 20:52 ` [PATCH 25/26] NFS: move allocation of nfs4_fl_commit_info to write's pg_init Fred Isaman
2012-04-09 20:52 ` [PATCH 26/26] NFS: rewrite directio write to use async coalesce code Fred Isaman
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