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933496e9cc
linux/net/sunrpc
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J. Bruce Fields 933496e9cc SUNRPC: 'Directory with parent 'rpc_clnt' already present!' 
Each rpc_client has a cl_clid which is allocated from a global ida, and
a debugfs directory which is named after cl_clid.

We're releasing the cl_clid before we free the debugfs directory named
after it.  As soon as the cl_clid is released, that value is available
for another newly created client.

That leaves a window where another client may attempt to create a new
debugfs directory with the same name as the not-yet-deleted debugfs
directory from the dying client.  Symptoms are log messages like

	Directory 4 with parent 'rpc_clnt' already present!

Fixes: 7c4310ff56 "SUNRPC: defer slow parts of rpc_free_client() to a workqueue."
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
2020-05-14 16:31:09 -04:00
..
auth_gss NFS client updates for Linux 5.7 2020-04-07 13:51:39 -07:00
xprtrdma NFS client bugfixes for Linux 5.7 2020-05-02 11:24:01 -07:00
addr.c SUNRPC: Use kmemdup_nul() in rpc_parse_scope_id() 2020-02-03 16:35:07 -05:00
auth_null.c SUNRPC: Add rpc_auth::au_ralign field 2019-02-14 11:48:36 -05:00
auth_unix.c SUNRPC: Use the client user namespace when encoding creds 2019-04-26 16:24:32 -04:00
auth.c SUNRPC: Remove broken gss_mech_list_pseudoflavors() 2020-01-15 10:54:32 -05:00
backchannel_rqst.c SUNRPC: Destroy the back channel when we destroy the host transport 2019-10-30 12:04:35 -04:00
cache.c SUNRPC/cache: Fix unsafe traverse caused double-free in cache_purge 2020-04-13 10:28:21 -04:00
clnt.c SUNRPC: 'Directory with parent 'rpc_clnt' already present!' 2020-05-14 16:31:09 -04:00
debugfs.c NFS client updates for Linux 5.3 2019-07-18 14:32:33 -07:00
Kconfig SUNRPC: Drop redundant CONFIG_ from CONFIG_SUNRPC_DISABLE_INSECURE_ENCTYPES 2019-07-06 14:54:53 -04:00
Makefile SUNRPC: remove generic cred code. 2018-12-19 13:52:46 -05:00
netns.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
rpc_pipe.c kernel/notifier.c: remove blocking_notifier_chain_cond_register() 2019-12-04 19:44:12 -08:00
rpcb_clnt.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
sched.c SUNRPC: Don't start a timer on an already queued rpc task 2020-04-04 19:59:27 -04:00
socklib.c SUNRPC: Refactor xs_sendpages() 2020-03-16 12:04:33 -04:00
socklib.h SUNRPC: Refactor xs_sendpages() 2020-03-16 12:04:33 -04:00
stats.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
sunrpc_syms.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
sunrpc.h SUNRPC: Teach server to use xprt_sock_sendmsg for socket sends 2020-03-16 12:04:33 -04:00
svc_xprt.c svcrdma: Fix leak of svc_rdma_recv_ctxt objects 2020-04-17 12:40:38 -04:00
svc.c SUNRPC: Teach server to use xprt_sock_sendmsg for socket sends 2020-03-16 12:04:33 -04:00
svcauth_unix.c nfsd: export upcalls must not return ESTALE when mountd is down 2020-03-16 12:04:33 -04:00
svcauth.c SUNRPC: Trace gssproxy upcall results 2019-10-30 16:32:07 -04:00
svcsock.c svcrdma: Fix leak of svc_rdma_recv_ctxt objects 2020-04-17 12:40:38 -04:00
sysctl.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
timer.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
xdr.c SUNRPC: Remove xdr_buf_read_mic() 2020-03-16 10:18:45 -04:00
xprt.c svcrdma: Create a generic tracing class for displaying xdr_buf layout 2020-03-16 12:04:32 -04:00
xprtmultipath.c SUNRPC: Optimise transport balancing code 2019-07-18 14:43:52 -04:00
xprtsock.c SUNRPC: Fix backchannel RPC soft lockups 2020-04-17 12:40:31 -04:00