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NFSv4.1: Fix a bad reference count issue in the pNFS commit code
author
Trond Myklebust
<Trond.Myklebust@netapp.com>
Tue, 22 May 2012 20:36:27 +0000
(16:36 -0400)
committer
Trond Myklebust
<Trond.Myklebust@netapp.com>
Tue, 22 May 2012 20:36:27 +0000
(16:36 -0400)
filelayout_scan_commit_lists needs to bump the reference count on
the struct nfs_page just like nfs_scan_commit_list().
Reported-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
fs/nfs/nfs4filelayout.c
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diff --git
a/fs/nfs/nfs4filelayout.c
b/fs/nfs/nfs4filelayout.c
index
474c630
..
33849d3
100644
(file)
--- a/
fs/nfs/nfs4filelayout.c
+++ b/
fs/nfs/nfs4filelayout.c
@@
-1106,6
+1106,7
@@
transfer_commit_list(struct list_head *src, struct list_head *dst,
list_for_each_entry_safe(req, tmp, src, wb_list) {
if (!nfs_lock_request(req))
continue;
+ kref_get(&req->wb_kref);
if (cond_resched_lock(cinfo->lock))
list_safe_reset_next(req, tmp, wb_list);
nfs_request_remove_commit_list(req, cinfo);