From: Jeff Layton <jlayton@poochiereds.net>
To: Trond Myklebust <trondmy@primarydata.com>,
Anna Schumaker <Anna.Schumaker@netapp.com>
Cc: Thomas Haynes <loghyr@primarydata.com>,
linux-nfs@vger.kernel.org, hch@lst.de
Subject: [PATCH v4 05/13] pnfs: record sequence in pnfs_layout_segment when it's created
Date: Tue, 17 May 2016 12:28:40 -0400 [thread overview]
Message-ID: <1463502528-11519-6-git-send-email-jeff.layton@primarydata.com> (raw)
In-Reply-To: <1463502528-11519-1-git-send-email-jeff.layton@primarydata.com>
In later patches, we're going to teach the client to be more selective
about how it returns layouts. This means keeping a record of what the
stateid's seqid was at the time that the server handed out a layout
segment.
Signed-off-by: Jeff Layton <jeff.layton@primarydata.com>
---
fs/nfs/pnfs.c | 1 +
fs/nfs/pnfs.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 5b404d926e08..18b6f950e300 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1697,6 +1697,7 @@ pnfs_layout_process(struct nfs4_layoutget *lgp)
init_lseg(lo, lseg);
lseg->pls_range = res->range;
+ lseg->pls_seq = be32_to_cpu(res->stateid.seqid);
spin_lock(&ino->i_lock);
if (pnfs_layoutgets_blocked(lo)) {
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 7222d3a35439..361fa5494aa5 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -64,6 +64,7 @@ struct pnfs_layout_segment {
struct list_head pls_lc_list;
struct pnfs_layout_range pls_range;
atomic_t pls_refcount;
+ u32 pls_seq;
unsigned long pls_flags;
struct pnfs_layout_hdr *pls_layout;
struct work_struct pls_work;
--
2.5.5
next prev parent reply other threads:[~2016-05-17 16:29 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-17 16:28 [PATCH v4 00/13] pnfs: layout pipelining and related fixes Jeff Layton
2016-05-17 16:28 ` [PATCH v4 01/13] pNFS/flexfile: Fix erroneous fall back to read/write through the MDS Jeff Layton
2016-05-17 16:28 ` [PATCH v4 02/13] pNFS/flexfiles: When checking for available DSes, conditionally check for MDS io Jeff Layton
2016-05-17 16:28 ` [PATCH v4 03/13] pNFS/flexfiles: When initing reads or writes, we might have to retry connecting to DSes Jeff Layton
2016-05-17 16:28 ` [PATCH v4 04/13] pnfs: don't merge new ff lsegs with ones that have LAYOUTRETURN bit set Jeff Layton
2016-05-17 16:28 ` Jeff Layton [this message]
2016-05-17 16:28 ` [PATCH v4 06/13] pnfs: keep track of the return sequence number in pnfs_layout_hdr Jeff Layton
2016-05-17 16:28 ` [PATCH v4 07/13] pnfs: only tear down lsegs that precede seqid in LAYOUTRETURN args Jeff Layton
2016-05-17 16:28 ` [PATCH v4 08/13] flexfiles: remove pointless setting of NFS_LAYOUT_RETURN_REQUESTED Jeff Layton
2016-05-17 16:28 ` [PATCH v4 09/13] flexfiles: add kerneldoc header to nfs4_ff_layout_prepare_ds Jeff Layton
2016-05-17 16:28 ` [PATCH v4 10/13] pnfs: fix bad error handling in send_layoutget Jeff Layton
2016-05-17 16:28 ` [PATCH v4 11/13] pnfs: lift retry logic from send_layoutget to pnfs_update_layout Jeff Layton
2016-05-17 16:28 ` [PATCH v4 12/13] pnfs: rework LAYOUTGET retry handling Jeff Layton
2016-06-28 12:10 ` Andrew W Elble
2016-06-28 12:22 ` Jeff Layton
2016-06-28 12:53 ` Andrew W Elble
2016-06-28 12:55 ` Trond Myklebust
2016-06-28 13:09 ` Jeff Layton
2016-05-17 16:28 ` [PATCH v4 13/13] pnfs: make pnfs_layout_process more robust Jeff Layton
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