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Chuck Lever 8cc0e63ba8 Revert "SUNRPC: Use RMW bitops in single-threaded hot paths" 
commit 7827c81f0248e3c2f40d438b020f3d222f002171 upstream.

The premise that "Once an svc thread is scheduled and executing an
RPC, no other processes will touch svc_rqst::rq_flags" is false.
svc_xprt_enqueue() examines the RQ_BUSY flag in scheduled nfsd
threads when determining which thread to wake up next.

Found via KCSAN.

Fixes: 28df0988815f ("SUNRPC: Use RMW bitops in single-threaded hot paths")
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-01-14 10:33:42 +01:00
..
acl.h
NFSD: add posix ACLs to struct nfsd_attrs
2022-08-04 10:28:03 -04:00
auth.c
…
auth.h
…
blocklayout.c
block: remove genhd.h
2022-02-02 07:49:59 -07:00
blocklayoutxdr.c
…
blocklayoutxdr.h
…
cache.h
nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_reply_cache_stats_fops
2022-09-26 14:02:50 -04:00
current_stateid.h
…
export.c
fs: add is_idmapped_mnt() helper
2021-12-03 18:44:06 +01:00
export.h
nfsd: report per-export stats
2021-01-25 09:36:28 -05:00
fault_inject.c
nfsd: no need to check return value of debugfs_create functions
2019-07-03 16:57:17 +02:00
filecache.c
nfsd: fix use-after-free in nfsd_file_do_acquire tracepoint
2022-11-05 11:29:55 -04:00
filecache.h
nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_file_cache_stats_fops
2022-09-26 14:02:50 -04:00
flexfilelayout.c
nfsd: use correct format characters
2022-03-17 19:47:38 -04:00
flexfilelayoutxdr.c
…
flexfilelayoutxdr.h
…
idmap.h
…
Kconfig
NFSD: Remove CONFIG_NFSD_V3
2022-03-11 10:25:14 -05:00
lockd.c
NFSD: simplify struct nfsfh
2021-10-02 15:51:10 -04:00
Makefile
NFSD: Remove CONFIG_NFSD_V3
2022-03-11 10:25:14 -05:00
netns.h
NFSD: add shrinker to reap courtesy clients on low memory condition
2022-09-26 14:02:41 -04:00
nfs2acl.c
NFSD: Finish converting the NFSv2 GETACL result encoder
2022-12-31 13:31:58 +01:00
nfs3acl.c
NFSD: Finish converting the NFSv3 GETACL result encoder
2022-12-31 13:31:58 +01:00
nfs3proc.c
NFSD: Refactor common code out of dirlist helpers
2022-09-26 14:02:47 -04:00
nfs3xdr.c
NFSD: Clean up WRITE arg decoders
2022-09-26 14:02:47 -04:00
nfs4acl.c
NFSD: add posix ACLs to struct nfsd_attrs
2022-08-04 10:28:03 -04:00
nfs4callback.c
nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure
2022-12-31 13:32:53 +01:00
nfs4idmap.c
NFSD: move from strlcpy with unused retval to strscpy
2022-09-26 14:02:20 -04:00
nfs4layouts.c
NFSD: Add tracepoints to report NFSv4 callback completions
2022-09-26 14:02:32 -04:00
nfs4proc.c
Revert "SUNRPC: Use RMW bitops in single-threaded hot paths"
2023-01-14 10:33:42 +01:00
nfs4recover.c
struct file-related stuff
2022-10-06 17:13:18 -07:00
nfs4state.c
nfsd: don't call nfsd_file_put from client states seqfile display
2022-12-31 13:31:58 +01:00
nfs4xdr.c
Revert "SUNRPC: Use RMW bitops in single-threaded hot paths"
2023-01-14 10:33:42 +01:00
nfscache.c
nfsd: use DEFINE_SHOW_ATTRIBUTE to define nfsd_reply_cache_stats_fops
2022-09-26 14:02:50 -04:00
nfsctl.c
NFSD: unregister shrinker when nfsd_init_net() fails
2022-10-11 10:08:26 -04:00
nfsd.h
NFSD: add shrinker to reap courtesy clients on low memory condition
2022-09-26 14:02:41 -04:00
nfsfh.c
nfsd: ensure we always call fh_verify_error tracepoint
2022-10-13 12:12:37 -04:00
nfsfh.h
NFSD: discard fh_locked flag and fh_lock/fh_unlock
2022-08-04 10:28:48 -04:00
nfsproc.c
NFSD: Refactor common code out of dirlist helpers
2022-09-26 14:02:47 -04:00
nfssvc.c
nfsd: shut down the NFSv4 state objects before the filecache
2023-01-12 12:02:00 +01:00
nfsxdr.c
NFSD: Clean up WRITE arg decoders
2022-09-26 14:02:47 -04:00
pnfs.h
…
state.h
nfsd: make nfsd4_run_cb a bool return function
2022-09-26 14:50:57 -04:00
stats.c
nfsd: use DEFINE_PROC_SHOW_ATTRIBUTE to define nfsd_proc_ops
2022-09-26 14:02:49 -04:00
stats.h
nfsd: make nfsd_stats.th_cnt atomic_t
2021-12-13 13:42:51 -05:00
trace.c
NFSD: Add SPDX header for fs/nfsd/trace.c
2020-11-30 13:00:24 -05:00
trace.h
NFSD: Fix trace_nfsd_fh_verify_err() crasher
2022-11-14 08:43:35 -05:00
vfs.c
Amir's copy_file_range() fix
2022-11-27 12:40:06 -08:00
vfs.h
NFSD: drop fname and flen args from nfsd_create_locked()
2022-09-26 14:02:30 -04:00
xdr3.h
SUNRPC: Change return value type of .pc_encode
2021-10-13 11:34:49 -04:00
xdr4.h
NFSD: Pack struct nfsd4_compoundres
2022-09-26 14:02:49 -04:00
xdr4cb.h
NFSD CB_OFFLOAD xdr
2018-09-25 20:34:54 -04:00
xdr.h
NFSD: prevent underflow in nfssvc_decode_writeargs()
2022-03-15 09:35:56 -04:00