lkml.org 
[lkml]   [2012]   [Nov]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 040/270] lockd: use rpc client's cl_nodename for id encoding
Date
3.5.7u1 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Stanislav Kinsbursky <skinsbursky@parallels.com>

commit 303a7ce92064c285a04c870f2dc0192fdb2968cb upstream.

Taking hostname from uts namespace if not safe, because this cuold be
performind during umount operation on child reaper death. And in this case
current->nsproxy is NULL already.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Herton Ronaldo Krzesinski <herton.krzesinski@canonical.com>
---
fs/lockd/mon.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c
index 7ef14b3..606a8dd 100644
--- a/fs/lockd/mon.c
+++ b/fs/lockd/mon.c
@@ -40,6 +40,7 @@ struct nsm_args {
u32 proc;

char *mon_name;
+ char *nodename;
};

struct nsm_res {
@@ -94,6 +95,7 @@ static int nsm_mon_unmon(struct nsm_handle *nsm, u32 proc, struct nsm_res *res,
.vers = 3,
.proc = NLMPROC_NSM_NOTIFY,
.mon_name = nsm->sm_mon_name,
+ .nodename = utsname()->nodename,
};
struct rpc_message msg = {
.rpc_argp = &args,
@@ -430,7 +432,7 @@ static void encode_my_id(struct xdr_stream *xdr, const struct nsm_args *argp)
{
__be32 *p;

- encode_nsm_string(xdr, utsname()->nodename);
+ encode_nsm_string(xdr, argp->nodename);
p = xdr_reserve_space(xdr, 4 + 4 + 4);
*p++ = cpu_to_be32(argp->prog);
*p++ = cpu_to_be32(argp->vers);
--
1.7.9.5


\
 
 \ /
  Last update: 2012-11-26 19:01    [W:0.669 / U:0.388 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site