[PATCH 3/6] NFSD: Remove two unused NFSv4 constants

[Chuck Lever <cel@kernel.org>]

Neither COMPOUND_SLACK_SPACE nor NFSD_COURTESY_CLIENT_TIMEOUT has
a remaining user. COMPOUND_SLACK_SPACE lost its last reference in
commit ea8d7720b274 ("nfsd4: remove redundant encode buffer size
checking"), which deleted the encode buffer-space check the macro
fed; the comment above it still describes that departed check.
NFSD_COURTESY_CLIENT_TIMEOUT is likewise unreferenced: the
courteous-server code expires clients through the laundromat's
reaper and conflict paths, never a fixed 24-hour timer.

Signed-off-by: Chuck Lever <cel@kernel.org>
---
 fs/nfsd/nfsd.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/fs/nfsd/nfsd.h b/fs/nfsd/nfsd.h
index 384a2498b6a2..27e5384cd849 100644
--- a/fs/nfsd/nfsd.h
+++ b/fs/nfsd/nfsd.h
@@ -204,21 +204,14 @@ void		nfsd_lockd_shutdown(void);
  * we might process an operation with side effects, and be unable to
  * tell the client that the operation succeeded.
  *
- * COMPOUND_SLACK_SPACE - this is the minimum bytes of buffer space
- * needed to encode an "ordinary" _successful_ operation.  (GETATTR,
- * READ, READDIR, and READLINK have their own buffer checks.)  if we
- * fall below this level, we fail the next operation with NFS4ERR_RESOURCE.
- *
  * COMPOUND_ERR_SLACK_SPACE - this is the minimum bytes of buffer space
  * needed to encode an operation which has failed with NFS4ERR_RESOURCE.
  * care is taken to ensure that we never fall below this level for any
  * reason.
  */
-#define	COMPOUND_SLACK_SPACE		140    /* OP_GETFH */
 #define COMPOUND_ERR_SLACK_SPACE	16     /* OP_SETATTR */
 
 #define NFSD_LAUNDROMAT_MINTIMEOUT      1   /* seconds */
-#define	NFSD_COURTESY_CLIENT_TIMEOUT	(24 * 60 * 60)	/* seconds */
 #define	NFSD_CLIENT_MAX_TRIM_PER_RUN	128
 #define	NFS4_CLIENTS_PER_GB		1024
 #define NFSD_DELEGRETURN_TIMEOUT	(HZ / 34)	/* 30ms */
-- 
2.54.0