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From:   Sasha Levin <Alexander.Levin@microsoft.com>
To:     "stable@vger.kernel.org" <stable@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     Jan Chochol <jan@chochol.info>,
        Trond Myklebust <trond.myklebust@primarydata.com>,
        Sasha Levin <Alexander.Levin@microsoft.com>
Subject: [PATCH AUTOSEL for 4.15 046/189] nfs: Do not convert
 nfs_idmap_cache_timeout to jiffies
Thread-Topic: [PATCH AUTOSEL for 4.15 046/189] nfs: Do not convert
 nfs_idmap_cache_timeout to jiffies
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Date:   Mon, 9 Apr 2018 00:17:22 +0000
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From: Jan Chochol <jan@chochol.info>

[ Upstream commit cbebc6ef4fc830f4040d4140bf53484812d5d5d9 ]

Since commit 57e62324e469 ("NFS: Store the legacy idmapper result in the
keyring") nfs_idmap_cache_timeout changed units from jiffies to seconds.
Unfortunately sysctl interface was not updated accordingly.

As a effect updating /proc/sys/fs/nfs/idmap_cache_timeout with some
value will incorrectly multiply this value by HZ.
Also reading /proc/sys/fs/nfs/idmap_cache_timeout will show real value
divided by HZ.

Fixes: 57e62324e469 ("NFS: Store the legacy idmapper result in the keyring"=
)
Signed-off-by: Jan Chochol <jan@chochol.info>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
---
 fs/nfs/nfs4sysctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4sysctl.c b/fs/nfs/nfs4sysctl.c
index 0d91d84e5822..c394e4447100 100644
--- a/fs/nfs/nfs4sysctl.c
+++ b/fs/nfs/nfs4sysctl.c
@@ -32,7 +32,7 @@ static struct ctl_table nfs4_cb_sysctls[] =3D {
 		.data =3D &nfs_idmap_cache_timeout,
 		.maxlen =3D sizeof(int),
 		.mode =3D 0644,
-		.proc_handler =3D proc_dointvec_jiffies,
+		.proc_handler =3D proc_dointvec,
 	},
 	{ }
 };
--=20
2.15.1