NeilBrown 0722d804f7 nfsd: Replace clamp_t in nfsd4_get_drc_mem() ... A recent change to clamp_t() in 6.1.y caused fs/nfsd/nfs4state.c to fail to compile with gcc-9. The code in nfsd4_get_drc_mem() was written with the assumption that when "max < min", clamp(val, min, max) would return max. This assumption is not documented as an API promise and the change caused a compile failure if it could be statically determined that "max < min". The relevant code was no longer present upstream when commit 1519fbc883 ("minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp()") landed there, so there is no upstream change to nfsd4_get_drc_mem() to backport. There is no clear case that the existing code in nfsd4_get_drc_mem() is functioning incorrectly. The goal of this patch is to permit the clean application of commit 1519fbc883 ("minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp()"), and any commits that depend on it, to LTS kernels without affecting the ability to compile those kernels. This is done by open-coding the __clamp() macro sans the built-in type checking. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=220745#c0 Signed-off-by: NeilBrown <neil@brown.name> Stable-dep-of: 1519fbc883 ("minmax.h: use BUILD_BUG_ON_MSG() for the lo < hi test in clamp()") Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Reviewed_by: David Laight <david.laight.linux@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-12-07 06:18:53 +09:00
..
acl.h
auth.c
auth.h
blocklayout.c	NFSD: Fix last write offset handling in layoutcommit	2025-10-23 16:16:39 +02:00
blocklayoutxdr.c	NFSD: Rework encoding and decoding of nfsd4_deviceid	2025-10-23 16:16:38 +02:00
blocklayoutxdr.h
cache.h
current_stateid.h
export.c	nfsd: decouple the xprtsec policy check from check_nfsd_access()	2025-10-23 16:16:43 +02:00
export.h	nfsd: decouple the xprtsec policy check from check_nfsd_access()	2025-10-23 16:16:43 +02:00
filecache.c
filecache.h
flexfilelayout.c	NFSD: Define a proc_layoutcommit for the FlexFiles layout type	2025-10-23 16:16:41 +02:00
flexfilelayoutxdr.c	NFSD: Rework encoding and decoding of nfsd4_deviceid	2025-10-23 16:16:38 +02:00
flexfilelayoutxdr.h
idmap.h
Kconfig
lockd.c	nfsd: nfserr_jukebox in nlm_fopen should lead to a retry	2025-10-19 16:30:56 +02:00
Makefile
netns.h
nfs2acl.c
nfs3acl.c
nfs3proc.c
nfs3xdr.c
nfs4acl.c
nfs4callback.c
nfs4idmap.c
nfs4layouts.c	NFSD: Rework encoding and decoding of nfsd4_deviceid	2025-10-23 16:16:38 +02:00
nfs4proc.c	NFSD: Fix crash in nfsd4_read_release()	2025-11-24 10:29:10 +01:00
nfs4recover.c
nfs4state.c	nfsd: Replace clamp_t in nfsd4_get_drc_mem()	2025-12-07 06:18:53 +09:00
nfs4xdr.c	NFSD: Rework encoding and decoding of nfsd4_deviceid	2025-10-23 16:16:38 +02:00
nfscache.c
nfsctl.c
nfsd.h
nfsfh.c	nfsd: decouple the xprtsec policy check from check_nfsd_access()	2025-10-23 16:16:43 +02:00
nfsfh.h
nfsproc.c
nfssvc.c
nfsxdr.c
pnfs.h
state.h
stats.c
stats.h
trace.c
trace.h
vfs.c
vfs.h
xdr.h
xdr3.h
xdr4.h	NFSD: Rework encoding and decoding of nfsd4_deviceid	2025-10-23 16:16:38 +02:00
xdr4cb.h