From: Fred Isaman <iisaman@netapp.com>
To: linux-nfs@vger.kernel.org
Subject: [PATCH 18/26] pnfs_submit: remove pnfs_writepages LAYOUTGET invocation
Date: Fri, 11 Jun 2010 03:31:45 -0400 [thread overview]
Message-ID: <1276241513-17942-19-git-send-email-iisaman@netapp.com> (raw)
In-Reply-To: <1276241513-17942-18-git-send-email-iisaman@netapp.com>
Signed-off-by: Fred Isaman <iisaman@netapp.com>
---
fs/nfs/pnfs.c | 37 +++++++------------------------------
fs/nfs/pnfs.h | 15 ++++++---------
2 files changed, 13 insertions(+), 39 deletions(-)
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index dd221e2..afafd0a 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1492,7 +1492,7 @@ pnfs_writepages(struct nfs_write_data *wdata, int how)
{
struct nfs_writeargs *args = &wdata->args;
struct inode *inode = wdata->inode;
- int numpages, status;
+ int numpages;
enum pnfs_try_status trypnfs;
struct nfs_server *nfss = NFS_SERVER(inode);
struct nfs_inode *nfsi = NFS_I(inode);
@@ -1504,19 +1504,8 @@ pnfs_writepages(struct nfs_write_data *wdata, int how)
args->count,
args->offset);
- /* Retrieve and set layout if not allready cached */
- status = _pnfs_update_layout(inode,
- args->context,
- args->count,
- args->offset,
- IOMODE_RW,
- &lseg);
- if (status) {
- dprintk("%s: Updating layout failed (%d), retry with NFS \n",
- __func__, status);
- trypnfs = PNFS_NOT_ATTEMPTED; /* retry with nfs I/O */
- goto out;
- }
+ lseg = wdata->req->wb_lseg;
+ get_lseg(lseg);
/* Determine number of pages
*/
@@ -1544,7 +1533,6 @@ pnfs_writepages(struct nfs_write_data *wdata, int how)
wdata->pdata.lseg = NULL;
put_lseg(lseg);
}
-out:
dprintk("%s End (trypnfs:%d)\n", __func__, trypnfs);
return trypnfs;
}
@@ -1651,22 +1639,11 @@ enum pnfs_try_status
_pnfs_try_to_write_data(struct nfs_write_data *data,
const struct rpc_call_ops *call_ops, int how)
{
- struct inode *ino = data->inode;
- struct nfs_server *nfss = NFS_SERVER(ino);
-
dprintk("--> %s\n", __func__);
- /* Only create an rpc request if utilizing NFSv4 I/O */
- if (!pnfs_enabled_sb(nfss) ||
- !nfss->pnfs_curr_ld->ld_io_ops->write_pagelist) {
- dprintk("<-- %s: not using pnfs\n", __func__);
- return PNFS_NOT_ATTEMPTED;
- } else {
- dprintk("%s: Utilizing pNFS I/O\n", __func__);
- data->pdata.call_ops = call_ops;
- data->pdata.pnfs_error = 0;
- data->pdata.how = how;
- return pnfs_writepages(data, how);
- }
+ data->pdata.call_ops = call_ops;
+ data->pdata.pnfs_error = 0;
+ data->pdata.how = how;
+ return pnfs_writepages(data, how);
}
enum pnfs_try_status
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 7bff487..60a9db6 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -122,18 +122,15 @@ pnfs_try_to_write_data(struct nfs_write_data *data,
const struct rpc_call_ops *call_ops,
int how)
{
- struct inode *inode = data->inode;
- struct nfs_server *nfss = NFS_SERVER(inode);
enum pnfs_try_status ret;
- /* FIXME: write_pagelist should probably be mandated */
- if (PNFS_EXISTS_LDIO_OP(nfss, write_pagelist))
- ret = _pnfs_try_to_write_data(data, call_ops, how);
- else
- ret = PNFS_NOT_ATTEMPTED;
-
+ if (!data->req->wb_lseg)
+ return PNFS_NOT_ATTEMPTED;
+ ret = _pnfs_try_to_write_data(data, call_ops, how);
if (ret == PNFS_ATTEMPTED)
- nfs_inc_stats(inode, NFSIOS_PNFS_WRITE);
+ nfs_inc_stats(data->inode, NFSIOS_PNFS_WRITE);
+ else
+ _pnfs_clear_lseg_from_pages(&data->pages);
return ret;
}
--
1.6.6.1
next prev parent reply other threads:[~2010-06-11 7:32 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-11 7:31 [PATCH 00/26] LAYOUT invocation v2 Fred Isaman
2010-06-11 7:31 ` [PATCH 01/26] pnfs-submit: Revert "pnfs-nonfilelayout: Prelim support for non-file layout O_DIRECT" Fred Isaman
2010-06-11 7:31 ` [PATCH 02/26] pnfs-submit: Revert "pnfs: Enable O_DIRECT write path." Fred Isaman
2010-06-11 7:31 ` [PATCH 03/26] pnfs-submit: Revert "pnfs: Enable O_DIRECT read path." Fred Isaman
2010-06-11 7:31 ` [PATCH 04/26] pnfs-submit: Revert "pnfs: Add function to set up O_DIRECT I/O" Fred Isaman
2010-06-11 7:31 ` [PATCH 05/26] SQUASHME: pnfs-submit: ensure pnfs_update_layout clears lsegp on error Fred Isaman
2010-06-11 7:31 ` [PATCH 06/26] pnfs-submit: filelayout: clean and breakup nfs4_pnfs_dserver_get Fred Isaman
2010-06-11 7:31 ` [PATCH 07/26] pnfs-submit: filelayout: remove some dead code from filelayout_commit Fred Isaman
2010-06-11 7:31 ` [PATCH 08/26] pnfs-submit: remove PNFS_LAYOUTGET_ON_OPEN Fred Isaman
2010-06-11 7:31 ` [PATCH 09/26] pnfs-submit: track the number of outstanding commits Fred Isaman
2010-06-11 7:31 ` [PATCH 10/26] pnfs_submit: mandate basic io path operations for layout drivers Fred Isaman
2010-06-11 7:31 ` [PATCH 11/26] pnfs_submit: expose pnfs_update_layout, put_lseg, and get_lseg functions Fred Isaman
2010-06-11 7:31 ` [PATCH 12/26] pnfs_submit: stash and refcount lseg in read path Fred Isaman
2010-06-11 7:31 ` [PATCH 13/26] pnfs_submit: read path changeover Fred Isaman
2010-06-11 7:31 ` [PATCH 14/26] pnfs_submit: use fsdata to pass lseg Fred Isaman
2010-06-11 7:31 ` [PATCH 15/26] pnfs_submit: stash and refcount lseg in write path Fred Isaman
2010-06-11 7:31 ` [PATCH 16/26] pnfs_submit: remove pnfs_file_operations Fred Isaman
2010-06-11 7:31 ` [PATCH 17/26] pnfs_submit: remove pnfs_update_layout_commit Fred Isaman
2010-06-11 7:31 ` Fred Isaman [this message]
2010-06-11 7:31 ` [PATCH 19/26] pnfs-submit: export some commit error handling for use by layout drivers Fred Isaman
2010-06-11 7:31 ` [PATCH 20/26] pnfs_submit: API change: remove pnfs_commit layoutget invocation Fred Isaman
2010-06-11 7:31 ` [PATCH 21/26] pnfs_submit: filelayout: rewrite filelayout_commit to use new API Fred Isaman
2010-06-11 7:31 ` [PATCH 22/26] pnfs_submit: remove unecessary pnfs_fl_call_data field pnfs_client Fred Isaman
2010-06-11 7:31 ` [PATCH 23/26] pnfs_submit: remove unecessary pnfs_fl_call_data field commit_through_mds Fred Isaman
2010-06-11 7:31 ` [PATCH 24/26] pnfs_submit: pnfs_update_layout can return void Fred Isaman
2010-06-11 7:31 ` [PATCH 25/26] pnfs-submit: Revert "pnfs: pnfs_redirty_request" Fred Isaman
2010-06-11 7:31 ` [PATCH 26/26] pnfs-submit: Reorder arguments to pnfs_update_layout Fred Isaman
2010-06-12 20:35 ` [PATCH 00/26] LAYOUT invocation v2 Benny Halevy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1276241513-17942-19-git-send-email-iisaman@netapp.com \
--to=iisaman@netapp.com \
--cc=linux-nfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox