From: Trond Myklebust <trond.myklebust@primarydata.com>
To: linux-nfs@vger.kernel.org
Subject: [PATCH 1/3] NFSv4: Call update_changeattr() from _nfs4_proc_open only if a file was created
Date: Wed, 11 Jan 2017 17:07:07 -0500 [thread overview]
Message-ID: <20170111220709.19405-1-trond.myklebust@primarydata.com> (raw)
We don't want to invalidate the directory attribute and data cache unless we
know that a file was created, or the change attribute differs from the one
in our cache.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
fs/nfs/nfs4proc.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6dcbc5defb7a..176561a0fe0d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2391,11 +2391,12 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
nfs_fattr_map_and_free_names(server, &data->f_attr);
if (o_arg->open_flags & O_CREAT) {
- update_changeattr(dir, &o_res->cinfo);
if (o_arg->open_flags & O_EXCL)
data->file_created = 1;
else if (o_res->cinfo.before != o_res->cinfo.after)
data->file_created = 1;
+ if (data->file_created || dir->i_version != o_res->cinfo.after)
+ update_changeattr(dir, &o_res->cinfo);
}
if ((o_res->rflags & NFS4_OPEN_RESULT_LOCKTYPE_POSIX) == 0)
server->caps &= ~NFS_CAP_POSIX_LOCK;
--
2.9.3
next reply other threads:[~2017-01-11 22:07 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-11 22:07 Trond Myklebust [this message]
2017-01-11 22:07 ` [PATCH 2/3] NFSv4: Don't apply change_info4 twice on rename within a directory Trond Myklebust
2017-01-11 22:07 ` [PATCH 3/3] NFSv4: Don't call update_changeattr() unless the unlink is successful Trond Myklebust
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