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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-25 11:33:52 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-09-25 11:33:52 -0700 |
commit | 101688f534fd322520678a184fdfedc7a21741fc (patch) | |
tree | 13130f1e86c6a2a3aaee872fe6f5168b0114d9ca /net/sunrpc | |
parent | ddff42e5926bc0fcfcbc7d035cdbc325c36351bc (diff) | |
parent | 500d701f336b2771d34e46da7875a4782515a652 (diff) | |
download | op-kernel-dev-101688f534fd322520678a184fdfedc7a21741fc.zip op-kernel-dev-101688f534fd322520678a184fdfedc7a21741fc.tar.gz |
Merge tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client bugfixes from Trond Myklebust:
"Highlights include:
Stable patches:
- fix v4.2 SEEK on files over 2 gigs
- Fix a layout segment reference leak when pNFS I/O falls back to inband I/O.
- Fix recovery of recalled read delegations
Bugfixes:
- Fix a case where NFSv4 fails to send CLOSE after a server reboot
- Fix sunrpc to wait for connections to complete before retrying
- Fix sunrpc races between transport connect/disconnect and shutdown
- Fix an infinite loop when layoutget fail with BAD_STATEID
- nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
- Fix a bogus WARN_ON_ONCE() in O_DIRECT when layout commit_through_mds is set
- Fix layoutreturn/close ordering issues"
* tag 'nfs-for-4.3-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
NFS41: make close wait for layoutreturn
NFS: Skip checking ds_cinfo.buckets when lseg's commit_through_mds is set
NFSv4.x/pnfs: Don't try to recover stateids twice in layoutget
NFSv4: Recovery of recalled read delegations is broken
NFS: Fix an infinite loop when layoutget fail with BAD_STATEID
NFS: Do cleanup before resetting pageio read/write to mds
SUNRPC: xs_sock_mark_closed() does not need to trigger socket autoclose
SUNRPC: Lock the transport layer on shutdown
nfs/filelayout: Fix NULL reference caused by double freeing of fh_array
SUNRPC: Ensure that we wait for connections to complete before retrying
SUNRPC: drop null test before destroy functions
nfs: fix v4.2 SEEK on files over 2 gigs
SUNRPC: Fix races between socket connection and destroy code
nfs: fix pg_test page count calculation
Failing to send a CLOSE if file is opened WRONLY and server reboots on a 4.x mount
Diffstat (limited to 'net/sunrpc')
-rw-r--r-- | net/sunrpc/sched.c | 12 | ||||
-rw-r--r-- | net/sunrpc/xprt.c | 6 | ||||
-rw-r--r-- | net/sunrpc/xprtsock.c | 15 |
3 files changed, 21 insertions, 12 deletions
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c index 337ca85..f14f24e 100644 --- a/net/sunrpc/sched.c +++ b/net/sunrpc/sched.c @@ -1092,14 +1092,10 @@ void rpc_destroy_mempool(void) { rpciod_stop(); - if (rpc_buffer_mempool) - mempool_destroy(rpc_buffer_mempool); - if (rpc_task_mempool) - mempool_destroy(rpc_task_mempool); - if (rpc_task_slabp) - kmem_cache_destroy(rpc_task_slabp); - if (rpc_buffer_slabp) - kmem_cache_destroy(rpc_buffer_slabp); + mempool_destroy(rpc_buffer_mempool); + mempool_destroy(rpc_task_mempool); + kmem_cache_destroy(rpc_task_slabp); + kmem_cache_destroy(rpc_buffer_slabp); rpc_destroy_wait_queue(&delay_queue); } diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index ab5dd62..2e98f4a 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -614,6 +614,7 @@ static void xprt_autoclose(struct work_struct *work) clear_bit(XPRT_CLOSE_WAIT, &xprt->state); xprt->ops->close(xprt); xprt_release_write(xprt, NULL); + wake_up_bit(&xprt->state, XPRT_LOCKED); } /** @@ -723,6 +724,7 @@ void xprt_unlock_connect(struct rpc_xprt *xprt, void *cookie) xprt->ops->release_xprt(xprt, NULL); out: spin_unlock_bh(&xprt->transport_lock); + wake_up_bit(&xprt->state, XPRT_LOCKED); } /** @@ -1394,6 +1396,10 @@ out: static void xprt_destroy(struct rpc_xprt *xprt) { dprintk("RPC: destroying transport %p\n", xprt); + + /* Exclude transport connect/disconnect handlers */ + wait_on_bit_lock(&xprt->state, XPRT_LOCKED, TASK_UNINTERRUPTIBLE); + del_timer_sync(&xprt->timer); rpc_xprt_debugfs_unregister(xprt); diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c index 7be90bc..1a85e0e 100644 --- a/net/sunrpc/xprtsock.c +++ b/net/sunrpc/xprtsock.c @@ -777,7 +777,6 @@ static void xs_sock_mark_closed(struct rpc_xprt *xprt) xs_sock_reset_connection_flags(xprt); /* Mark transport as closed and wake up all pending tasks */ xprt_disconnect_done(xprt); - xprt_force_disconnect(xprt); } /** @@ -881,8 +880,11 @@ static void xs_xprt_free(struct rpc_xprt *xprt) */ static void xs_destroy(struct rpc_xprt *xprt) { + struct sock_xprt *transport = container_of(xprt, + struct sock_xprt, xprt); dprintk("RPC: xs_destroy xprt %p\n", xprt); + cancel_delayed_work_sync(&transport->connect_worker); xs_close(xprt); xs_xprt_free(xprt); module_put(THIS_MODULE); @@ -1435,6 +1437,7 @@ out: static void xs_tcp_state_change(struct sock *sk) { struct rpc_xprt *xprt; + struct sock_xprt *transport; read_lock_bh(&sk->sk_callback_lock); if (!(xprt = xprt_from_sock(sk))) @@ -1446,13 +1449,12 @@ static void xs_tcp_state_change(struct sock *sk) sock_flag(sk, SOCK_ZAPPED), sk->sk_shutdown); + transport = container_of(xprt, struct sock_xprt, xprt); trace_rpc_socket_state_change(xprt, sk->sk_socket); switch (sk->sk_state) { case TCP_ESTABLISHED: spin_lock(&xprt->transport_lock); if (!xprt_test_and_set_connected(xprt)) { - struct sock_xprt *transport = container_of(xprt, - struct sock_xprt, xprt); /* Reset TCP record info */ transport->tcp_offset = 0; @@ -1461,6 +1463,8 @@ static void xs_tcp_state_change(struct sock *sk) transport->tcp_flags = TCP_RCV_COPY_FRAGHDR | TCP_RCV_COPY_XID; xprt->connect_cookie++; + clear_bit(XPRT_SOCK_CONNECTING, &transport->sock_state); + xprt_clear_connecting(xprt); xprt_wake_pending_tasks(xprt, -EAGAIN); } @@ -1496,6 +1500,9 @@ static void xs_tcp_state_change(struct sock *sk) smp_mb__after_atomic(); break; case TCP_CLOSE: + if (test_and_clear_bit(XPRT_SOCK_CONNECTING, + &transport->sock_state)) + xprt_clear_connecting(xprt); xs_sock_mark_closed(xprt); } out: @@ -2179,6 +2186,7 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock) /* Tell the socket layer to start connecting... */ xprt->stat.connect_count++; xprt->stat.connect_start = jiffies; + set_bit(XPRT_SOCK_CONNECTING, &transport->sock_state); ret = kernel_connect(sock, xs_addr(xprt), xprt->addrlen, O_NONBLOCK); switch (ret) { case 0: @@ -2240,7 +2248,6 @@ static void xs_tcp_setup_socket(struct work_struct *work) case -EINPROGRESS: case -EALREADY: xprt_unlock_connect(xprt, transport); - xprt_clear_connecting(xprt); return; case -EINVAL: /* Happens, for instance, if the user specified a link |