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104ef3d8cd
linux-stable/fs/nfs
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NeilBrown 104ef3d8cd nfsd: don't allow nfsd threads to be signalled. 
commit 3903902401 upstream.

The original implementation of nfsd used signals to stop threads during
shutdown.
In Linux 2.3.46pre5 nfsd gained the ability to shutdown threads
internally it if was asked to run "0" threads.  After this user-space
transitioned to using "rpc.nfsd 0" to stop nfsd and sending signals to
threads was no longer an important part of the API.

In commit 3ebdbe5203 ("SUNRPC: discard svo_setup and rename
svc_set_num_threads_sync()") (v5.17-rc1~75^2~41) we finally removed the
use of signals for stopping threads, using kthread_stop() instead.

This patch makes the "obvious" next step and removes the ability to
signal nfsd threads - or any svc threads.  nfsd stops allowing signals
and we don't check for their delivery any more.

This will allow for some simplification in later patches.

A change worth noting is in nfsd4_ssc_setup_dul().  There was previously
a signal_pending() check which would only succeed when the thread was
being shut down.  It should really have tested kthread_should_stop() as
well.  Now it just does the latter, not the former.

Signed-off-by: NeilBrown <neilb@suse.de>
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>
2024-05-25 16:21:30 +02:00
..
blocklayout pNFS: Fix the pnfs block driver's calculation of layoutget size 2024-01-25 15:27:23 -08:00
filelayout pNFS/filelayout: Fix coalescing test for single DS 2023-01-24 07:24:30 +01:00
flexfilelayout nfs: fix panic when nfs4_ff_layout_prepare_ds() fails 2024-03-26 18:20:57 -04:00
cache_lib.c NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
cache_lib.h NFS client updates for Linux 4.15 2017-11-17 14:18:00 -08:00
callback_proc.c pNFS: Avoid a live lock condition in pnfs_update_layout() 2022-06-06 11:53:55 -04:00
callback_xdr.c SUNRPC: Parametrize how much of argsize should be zeroed 2022-09-26 14:02:42 -04:00
callback.c nfsd: don't allow nfsd threads to be signalled. 2024-05-25 16:21:30 +02:00
callback.h NFSv4.1: Fix uninitialised variable in devicenotify 2022-01-06 14:00:20 -05:00
client.c nfs: make the rpc_stat per net namespace 2024-05-17 11:55:54 +02:00
delegation.c NFSv4: Fix a potential state reclaim deadlock 2022-10-27 15:52:10 -04:00
delegation.h NFSv4: Fix delegation return in cases where we have to retry 2021-06-13 19:36:27 -04:00
dir.c nfs: Remove redundant null checks before kfree 2022-10-27 15:52:10 -04:00
direct.c nfs: fix UAF in direct writes 2024-04-03 15:19:34 +02:00
dns_resolve.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
dns_resolve.h NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
export.c nfsd: allow reaping files still under writeback 2024-03-26 18:20:23 -04:00
file.c NFS Client Updates for Linux 6.1 2022-10-13 09:58:42 -07:00
fs_context.c nfs: fix possible null-ptr-deref when parsing param 2022-12-31 13:33:04 +01:00
fscache.c mm, netfs, fscache: stop read optimisation when folio removed from pagecache 2024-01-10 17:10:31 +01:00
fscache.h nfs: Convert to release_folio 2022-05-09 23:12:33 -04:00
getroot.c NFS: Remove the nfs4_label argument from nfs_setsecurity 2021-11-05 14:54:40 -04:00
inode.c nfs: Handle error of rpc_proc_register() in nfs_net_init(). 2024-05-17 11:55:54 +02:00
internal.h nfs: make the rpc_stat per net namespace 2024-05-17 11:55:54 +02:00
io.c NFS: Fix up incorrect documentation 2021-04-05 09:04:20 -04:00
iostat.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig NFS: Replace readdir's use of xxhash() with hash_64() 2022-04-07 16:19:47 -04:00
Makefile nfs: Convert to new fscache volume/cookie API 2022-01-10 11:53:25 +00:00
mount_clnt.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
namespace.c NFS: Fix an Oops in nfs_d_automount() 2022-12-31 13:32:18 +01:00
netns.h nfs: make the rpc_stat per net namespace 2024-05-17 11:55:54 +02:00
nfs2super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs2xdr.c NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN 2023-09-13 09:42:49 +02:00
nfs3_fs.h vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
nfs3acl.c vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
nfs3client.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
nfs3proc.c freezer,sched: Rewrite core freezer logic 2022-09-07 21:53:50 +02:00
nfs3super.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
nfs3xdr.c NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN 2023-09-13 09:42:49 +02:00
nfs4_fs.h NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
nfs4client.c NFSv4.1: fix pnfs MDS=DS session trunking 2023-10-06 14:56:31 +02:00
nfs4file.c NFSv4.2 fix problems with __nfs42_ssc_open 2022-08-19 20:31:57 -04:00
nfs4getroot.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfs4idmap.c nfs: remove unnecessary (void*) conversions. 2022-10-03 11:26:36 -04:00
nfs4idmap.h
nfs4namespace.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
nfs4proc.c NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102 2024-03-26 18:20:56 -04:00
nfs4renewd.c treewide: remove editor modelines and cruft 2021-05-07 00:26:34 -07:00
nfs4session.c NFSv4: Sanity check the parameters in nfs41_update_target_slotid() 2021-11-07 09:23:14 -05:00
nfs4session.h NFSv4: Sanity check the parameters in nfs41_update_target_slotid() 2021-11-07 09:23:14 -05:00
nfs4state.c NFSv4: Fix a nfs4_state_manager() race 2023-10-10 22:00:41 +02:00
nfs4super.c NFS: Adjust fs_context error logging 2021-01-10 13:32:39 -05:00
nfs4sysctl.c nfs: Do not convert nfs_idmap_cache_timeout to jiffies 2018-01-18 15:10:47 -05:00
nfs4trace.c pNFS/flexfiles: Add tracing for layout errors 2020-01-15 10:54:33 -05:00
nfs4trace.h trace: Relocate event helper files 2024-03-06 14:45:17 +00:00
nfs4xdr.c NFSv4.2: Fix a memory stomp in decode_attr_security_label 2022-12-31 13:32:18 +01:00
nfs42.h NFSv4.2: fix listxattr maximum XDR buffer size 2024-03-26 18:20:56 -04:00
nfs42proc.c nfs42: client needs to strip file mode's suid/sgid bit after ALLOCATE op 2023-10-25 12:03:14 +02:00
nfs42xattr.c NFSv4.2: fix wrong shrinker_id 2023-07-19 16:21:43 +02:00
nfs42xdr.c NFSv4.2: Rework scratch handling for READ_PLUS (again) 2023-09-13 09:43:05 +02:00
nfs.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
nfsroot.c NFS: Fix an off by one in root_nfs_cat() 2024-03-26 18:20:56 -04:00
nfstrace.c NFSv4: Catch and trace server filehandle encoding errors 2021-04-14 09:36:29 -04:00
nfstrace.h trace: Relocate event helper files 2024-03-06 14:45:17 +00:00
pagelist.c NFSv4.1 mark qualified async operations as MOVEABLE tasks 2022-05-31 17:09:30 -04:00
pnfs_dev.c NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info 2023-09-19 12:27:58 +02:00
pnfs_nfs.c pNFS: Fix assignment of xprtdata.cred 2023-09-13 09:42:49 +02:00
pnfs.c pNFS: Fix the pnfs block driver's calculation of layoutget size 2024-01-25 15:27:23 -08:00
pnfs.h NFSv4/flexfiles: Cancel I/O if the layout is recalled or revoked 2022-10-06 09:52:09 -04:00
proc.c NFS: NFSv2/v3 clients should never be setting NFS_CAP_XATTR 2022-02-25 18:50:13 -05:00
read.c NFSv4.2: Rework scratch handling for READ_PLUS (again) 2023-09-13 09:43:05 +02:00
super.c NFS: Avoid memcpy() run-time warning for struct sockaddr overflows 2022-10-27 15:52:10 -04:00
symlink.c fs: Change the type of filler_t 2022-05-09 16:36:48 -04:00
sysctl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysfs.c NFS: rename nfs_client_kset to nfs_kset 2023-10-10 22:00:35 +02:00
sysfs.h NFSv4: Fix up RCU annotations for struct nfs_netns_client 2020-10-15 13:31:08 -04:00
unlink.c NFSv4.1 mark qualified async operations as MOVEABLE tasks 2022-05-31 17:09:30 -04:00
write.c nfs: fix UAF in direct writes 2024-04-03 15:19:34 +02:00