From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Kinglong Mee <kinglongmee@gmail.com>,
Trond Myklebust <trond.myklebust@primarydata.com>
Subject: [PATCH 4.4 16/23] SUNRPC: cleanup ida information when removing sunrpc module
Date: Tue, 31 Jan 2017 06:37:18 +0100 [thread overview]
Message-ID: <20170131053625.623984861@linuxfoundation.org> (raw)
In-Reply-To: <20170131053624.926643555@linuxfoundation.org>
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Kinglong Mee <kinglongmee@gmail.com>
commit c929ea0b910355e1876c64431f3d5802f95b3d75 upstream.
After removing sunrpc module, I get many kmemleak information as,
unreferenced object 0xffff88003316b1e0 (size 544):
comm "gssproxy", pid 2148, jiffies 4294794465 (age 4200.081s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace:
[<ffffffffb0cfb58a>] kmemleak_alloc+0x4a/0xa0
[<ffffffffb03507fe>] kmem_cache_alloc+0x15e/0x1f0
[<ffffffffb0639baa>] ida_pre_get+0xaa/0x150
[<ffffffffb0639cfd>] ida_simple_get+0xad/0x180
[<ffffffffc06054fb>] nlmsvc_lookup_host+0x4ab/0x7f0 [lockd]
[<ffffffffc0605e1d>] lockd+0x4d/0x270 [lockd]
[<ffffffffc06061e5>] param_set_timeout+0x55/0x100 [lockd]
[<ffffffffc06cba24>] svc_defer+0x114/0x3f0 [sunrpc]
[<ffffffffc06cbbe7>] svc_defer+0x2d7/0x3f0 [sunrpc]
[<ffffffffc06c71da>] rpc_show_info+0x8a/0x110 [sunrpc]
[<ffffffffb044a33f>] proc_reg_write+0x7f/0xc0
[<ffffffffb038e41f>] __vfs_write+0xdf/0x3c0
[<ffffffffb0390f1f>] vfs_write+0xef/0x240
[<ffffffffb0392fbd>] SyS_write+0xad/0x130
[<ffffffffb0d06c37>] entry_SYSCALL_64_fastpath+0x1a/0xa9
[<ffffffffffffffff>] 0xffffffffffffffff
I found, the ida information (dynamic memory) isn't cleanup.
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Fixes: 2f048db4680a ("SUNRPC: Add an identifier for struct rpc_clnt")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/sunrpc/clnt.h | 1 +
net/sunrpc/clnt.c | 5 +++++
net/sunrpc/sunrpc_syms.c | 1 +
3 files changed, 7 insertions(+)
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -180,5 +180,6 @@ const char *rpc_peeraddr2str(struct rpc_
int rpc_localaddr(struct rpc_clnt *, struct sockaddr *, size_t);
const char *rpc_proc_name(const struct rpc_task *task);
+void rpc_cleanup_clids(void);
#endif /* __KERNEL__ */
#endif /* _LINUX_SUNRPC_CLNT_H */
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -337,6 +337,11 @@ out:
static DEFINE_IDA(rpc_clids);
+void rpc_cleanup_clids(void)
+{
+ ida_destroy(&rpc_clids);
+}
+
static int rpc_alloc_clid(struct rpc_clnt *clnt)
{
int clid;
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -119,6 +119,7 @@ out:
static void __exit
cleanup_sunrpc(void)
{
+ rpc_cleanup_clids();
rpcauth_remove_module();
cleanup_socket_xprt();
svc_cleanup_xprt_sock();
next prev parent reply other threads:[~2017-01-31 5:43 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-01-31 5:37 [PATCH 4.4 00/23] 4.4.46-stable review Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 01/23] fbdev: color map copying bounds checking Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 02/23] tile/ptrace: Preserve previous registers for short regset write Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 04/23] mm/mempolicy.c: do not put mempolicy before using its nodemask Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 05/23] sysctl: fix proc_doulongvec_ms_jiffies_minmax() Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 06/23] ISDN: eicon: silence misleading array-bounds warning Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 07/23] RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 08/23] s390/ptrace: Preserve previous registers for short regset write Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 10/23] can: ti_hecc: add missing prepare and unprepare of the clock Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 11/23] ARC: udelay: fix inline assembler by adding LP_COUNT to clobber list Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 12/23] ARC: [arcompact] handle unaligned access delay slot corner case Greg Kroah-Hartman
2017-02-10 12:51 ` Ben Hutchings
2017-02-10 13:19 ` Greg Kroah-Hartman
2017-02-10 13:26 ` Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 13/23] parisc: Dont use BITS_PER_LONG in userspace-exported swab.h header Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 14/23] nfs: Dont increment lock sequence ID after NFS4ERR_MOVED Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 15/23] NFSv4.0: always send mode in SETATTR after EXCLUSIVE4 Greg Kroah-Hartman
2017-01-31 5:37 ` Greg Kroah-Hartman [this message]
2017-01-31 5:37 ` [PATCH 4.4 18/23] IB/ipoib: move back IB LL address into the hard header Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 19/23] IB/umem: Release pid in error and ODP flow Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 20/23] [media] s5k4ecgx: select CRC32 helper Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 21/23] pinctrl: broxton: Use correct PADCFGLOCK offset Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 22/23] platform/x86: intel_mid_powerbtn: Set IRQ_ONESHOT Greg Kroah-Hartman
2017-01-31 5:37 ` [PATCH 4.4 23/23] mm, memcg: do not retry precharge charges Greg Kroah-Hartman
2017-01-31 17:23 ` [PATCH 4.4 00/23] 4.4.46-stable review Guenter Roeck
2017-01-31 22:06 ` Shuah Khan
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