Merge tag 'nfs-for-6.17-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client fixes from Trond Myklebust:
 "Stable patches:

   - Revert "SUNRPC: Don't allow waiting for exiting tasks" as it is
     breaking ltp tests

  Bugfixes:

   - Another set of fixes to the tracking of NFSv4 server capabilities
     when crossing filesystem boundaries

   - Localio fix to restore credentials and prevent triggering a
     BUG_ON()

   - Fix to prevent flapping of the localio on/off trigger

   - Protections against 'eof page pollution' as demonstrated in
     xfstests generic/363

   - Series of patches to ensure correct ordering of O_DIRECT i/o and
     truncate, fallocate and copy functions

   - Fix a NULL pointer check in flexfiles reads that regresses 6.17

   - Correct a typo that breaks flexfiles layout segment processing"

* tag 'nfs-for-6.17-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
  NFSv4/flexfiles: Fix layout merge mirror check.
  SUNRPC: call xs_sock_process_cmsg for all cmsg
  Revert "SUNRPC: Don't allow waiting for exiting tasks"
  NFS: Fix the marking of the folio as up to date
  NFS: nfs_invalidate_folio() must observe the offset and size arguments
  NFSv4.2: Serialise O_DIRECT i/o and copy range
  NFSv4.2: Serialise O_DIRECT i/o and clone range
  NFSv4.2: Serialise O_DIRECT i/o and fallocate()
  NFS: Serialise O_DIRECT i/o and truncate()
  NFSv4.2: Protect copy offload and clone against 'eof page pollution'
  NFS: Protect against 'eof page pollution'
  flexfiles/pNFS: fix NULL checks on result of ff_layout_choose_ds_for_read
  nfs/localio: avoid bouncing LOCALIO if nfs_client_is_local()
  nfs/localio: restore creds before releasing pageio data
  NFSv4: Clear the NFS_CAP_XATTR flag if not supported by the server
  NFSv4: Clear NFS_CAP_OPEN_XOR and NFS_CAP_DELEGTIME if not supported
  NFSv4: Clear the NFS_CAP_FS_LOCATIONS flag if it is not set
  NFSv4: Don't clear capabilities that won't be reset

2 files changed, 3 insertions, 5 deletions

diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index 73bc39281ef5..9b45fbdc90ca 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -276,8 +276,6 @@ EXPORT_SYMBOL_GPL(rpc_destroy_wait_queue);
 
 static int rpc_wait_bit_killable(struct wait_bit_key *key, int mode)
 {
-	if (unlikely(current->flags & PF_EXITING))
-		return -EINTR;
 	schedule();
 	if (signal_pending_state(mode, current))
 		return -ERESTARTSYS;
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index c5f7bbf5775f..3aa987e7f072 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -407,9 +407,9 @@ xs_sock_recv_cmsg(struct socket *sock, unsigned int *msg_flags, int flags)
 	iov_iter_kvec(&msg.msg_iter, ITER_DEST, &alert_kvec, 1,
 		      alert_kvec.iov_len);
 	ret = sock_recvmsg(sock, &msg, flags);
-	if (ret > 0 &&
-	    tls_get_record_type(sock->sk, &u.cmsg) == TLS_RECORD_TYPE_ALERT) {
-		iov_iter_revert(&msg.msg_iter, ret);
+	if (ret > 0) {
+		if (tls_get_record_type(sock->sk, &u.cmsg) == TLS_RECORD_TYPE_ALERT)
+			iov_iter_revert(&msg.msg_iter, ret);
 		ret = xs_sock_process_cmsg(sock, &msg, msg_flags, &u.cmsg,
 					   -EAGAIN);
 	}