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kernel_samsung_a53x/fs/nfs
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Chuck Lever cff4ebbbbf nfsd: don't allow nfsd threads to be signalled. 
[ Upstream commit 3903902401451b1cd9d797a8c79769eb26ac7fe5 ]

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 3ebdbe5203a8 ("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>
[ cel: adjusted to apply to v5.10.y ]
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 12:28:32 +01:00
..
blocklayout SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-11-19 12:27:20 +01:00
filelayout SUNRPC: Trace calls to .rpc_call_done 2024-11-19 12:27:47 +01:00
flexfilelayout SUNRPC: Trace calls to .rpc_call_done 2024-11-19 12:27:47 +01:00
cache_lib.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
cache_lib.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
callback.c nfsd: don't allow nfsd threads to be signalled. 2024-11-19 12:28:32 +01:00
callback.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
callback_proc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
callback_xdr.c SUNRPC: Parametrize how much of argsize should be zeroed 2024-11-19 12:28:23 +01:00
client.c nfs: make the rpc_stat per net namespace 2024-11-19 11:32:41 +01:00
delegation.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
delegation.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dir.c SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-11-19 12:27:20 +01:00
direct.c nfs: fix UAF in direct writes 2024-11-19 09:22:34 +01:00
dns_resolve.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
dns_resolve.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
export.c nfsd: allow reaping files still under writeback 2024-11-19 12:28:32 +01:00
file.c nfs: don't allow reexport reclaims 2024-11-19 12:27:44 +01:00
fs_context.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fscache-index.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fscache.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
fscache.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
getroot.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
inode.c nfs: Handle error of rpc_proc_register() in nfs_net_init(). 2024-11-19 11:32:41 +01:00
internal.h nfs: fix undefined behavior in nfs_block_bits() 2024-11-19 12:27:19 +01:00
io.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
iostat.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Kconfig Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
Makefile Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
mount_clnt.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
namespace.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
netns.h nfs: make the rpc_stat per net namespace 2024-11-19 11:32:41 +01:00
nfs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs2super.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs2xdr.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs3_fs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs3acl.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs3client.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs3proc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs3super.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs3xdr.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4_fs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4client.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4file.c NFSv4.2: Remove ifdef CONFIG_NFSD from NFSv4.2 client SSC code. 2024-11-19 12:27:37 +01:00
nfs4getroot.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4idmap.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4idmap.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4namespace.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4proc.c NFS: Fix READ_PLUS when server doesn't support OP_READ_PLUS 2024-11-19 12:27:19 +01:00
nfs4renewd.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4session.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4session.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4state.c NFS: restore module put when manager exits. 2024-11-19 12:27:58 +01:00
nfs4super.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4sysctl.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4trace.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4trace.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs4xdr.c SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-11-19 12:27:20 +01:00
nfs42.h NFSv4.2: fix listxattr maximum XDR buffer size 2024-11-19 08:44:57 +01:00
nfs42proc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs42xattr.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfs42xdr.c SUNRPC: Add xdr_set_scratch_page() and xdr_reset_scratch_buffer() 2024-11-19 12:27:20 +01:00
nfsroot.c NFS: Fix an off by one in root_nfs_cat() 2024-11-19 08:44:57 +01:00
nfstrace.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nfstrace.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pagelist.c SUNRPC: Trace calls to .rpc_call_done 2024-11-19 12:27:47 +01:00
pnfs.c pNFS: Fix a hang in nfs4_evict_inode() 2024-11-08 11:26:19 +01:00
pnfs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pnfs_dev.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
pnfs_nfs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
proc.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
read.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
super.c NFSv4.2: Remove ifdef CONFIG_NFSD from NFSv4.2 client SSC code. 2024-11-19 12:27:37 +01:00
symlink.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sysctl.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sysfs.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
sysfs.h Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
unlink.c Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
write.c SUNRPC: Trace calls to .rpc_call_done 2024-11-19 12:27:47 +01:00