From: Trond Myklebust <trond.myklebust@primarydata.com>
To: linux-nfs@vger.kernel.org
Subject: [PATCH 03/14] nfs: clean up rest of reqs when failing to add one
Date: Sat, 26 Dec 2015 18:20:49 -0500 [thread overview]
Message-ID: <1451172060-28238-3-git-send-email-trond.myklebust@primarydata.com> (raw)
In-Reply-To: <1451172060-28238-2-git-send-email-trond.myklebust@primarydata.com>
From: Peng Tao <tao.peng@primarydata.com>
If we fail to set up things before sending anything over wire,
we need to clean up the reqs that are still attached to the
IO descriptor.
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
fs/nfs/pagelist.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/fs/nfs/pagelist.c b/fs/nfs/pagelist.c
index 871ba5df5ca9..f66021663645 100644
--- a/fs/nfs/pagelist.c
+++ b/fs/nfs/pagelist.c
@@ -1120,6 +1120,7 @@ static int nfs_do_recoalesce(struct nfs_pageio_descriptor *desc)
static int nfs_pageio_add_request_mirror(struct nfs_pageio_descriptor *desc,
struct nfs_page *req)
{
+ struct nfs_pgio_mirror *mirror = nfs_pgio_current_mirror(desc);
int ret;
do {
@@ -1147,7 +1148,7 @@ int nfs_pageio_add_request(struct nfs_pageio_descriptor *desc,
nfs_pageio_setup_mirroring(desc, req);
if (desc->pg_error < 0)
- return 0;
+ goto out_failed;
for (midx = 0; midx < desc->pg_mirror_count; midx++) {
if (midx) {
@@ -1164,7 +1165,8 @@ int nfs_pageio_add_request(struct nfs_pageio_descriptor *desc,
if (IS_ERR(dupreq)) {
nfs_page_group_unlock(req);
- return 0;
+ desc->pg_error = PTR_ERR(dupreq);
+ goto out_failed;
}
nfs_lock_request(dupreq);
@@ -1177,10 +1179,19 @@ int nfs_pageio_add_request(struct nfs_pageio_descriptor *desc,
if (nfs_pgio_has_mirroring(desc))
desc->pg_mirror_idx = midx;
if (!nfs_pageio_add_request_mirror(desc, dupreq))
- return 0;
+ goto out_failed;
}
return 1;
+
+out_failed:
+ /*
+ * We might have failed before sending any reqs over wire.
+ * clean up rest of the reqs in mirror pg_list
+ */
+ if (desc->pg_error)
+ desc->pg_completion_ops->error_cleanup(&mirror->pg_list);
+ return 0;
}
/*
--
2.5.0
next prev parent reply other threads:[~2015-12-26 23:21 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-26 23:20 [PATCH 01/14] pNFS/flexfiles: Support server-supplied layoutstats sampling period Trond Myklebust
2015-12-26 23:20 ` [PATCH 02/14] NFS41: pop some layoutget errors to application Trond Myklebust
2015-12-26 23:20 ` Trond Myklebust [this message]
2015-12-26 23:20 ` [PATCH 04/14] nfs: centralize pgio error cleanup Trond Myklebust
2015-12-26 23:20 ` [PATCH 05/14] nfs: handle request add failure properly Trond Myklebust
2015-12-26 23:20 ` [PATCH 06/14] nfs: only remove page from mapping if launder_page fails Trond Myklebust
2015-12-26 23:20 ` [PATCH 07/14] NFS41: map NFS4ERR_LAYOUTUNAVAILABLE to ENODATA Trond Myklebust
2015-12-26 23:20 ` [PATCH 08/14] pnfs/flexfiles: do not mark delay-like status as DS failure Trond Myklebust
2015-12-26 23:20 ` [PATCH 09/14] pnfs/flexfiles: count io stat in rpc_count_stats callback Trond Myklebust
2015-12-26 23:20 ` [PATCH 10/14] pNFS/flexfiles: Don't prevent flexfiles client from retrying LAYOUTGET Trond Myklebust
2015-12-26 23:20 ` [PATCH 11/14] pNFS/flexfiles: Don't mark the entire layout as failed, when returning it Trond Myklebust
2015-12-26 23:20 ` [PATCH 12/14] pNFS/flexfiles: Fix a statistics gathering imbalance Trond Myklebust
2015-12-26 23:20 ` [PATCH 13/14] pNFS: Add flag to track if we've called nfs4_ff_layout_stat_io_start_read/write Trond Myklebust
2015-12-26 23:21 ` [PATCH 14/14] pNFS/flexfiles: Ensure we record layoutstats even if RPC is terminated early Trond Myklebust
2016-01-04 20:12 ` [PATCH 13/14] pNFS: Add flag to track if we've called nfs4_ff_layout_stat_io_start_read/write Benjamin Coddington
2016-01-04 16:29 ` [PATCH 04/14] nfs: centralize pgio error cleanup Benjamin Coddington
2016-01-04 15:48 ` [PATCH 03/14] nfs: clean up rest of reqs when failing to add one Benjamin Coddington
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