linux-kernel - [PATCH 06/67] nfs, cifs, ceph, 9p: Disable use of fscache prior to its rewrite

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Date:   Mon, 18 Oct 2021 15:51:57 +0100
From:   David Howells <dhowells@...hat.com>
To:     linux-cachefs@...hat.com
Cc:     Dave Wysochanski <dwysocha@...hat.com>,
        Trond Myklebust <trond.myklebust@...merspace.com>,
        Anna Schumaker <anna.schumaker@...app.com>,
        linux-nfs@...r.kernel.org, Jeff Layton <jlayton@...nel.org>,
        Ilya Dryomov <idryomov@...il.com>, ceph-devel@...r.kernel.org,
        Steve French <sfrench@...ba.org>, linux-cifs@...r.kernel.org,
        Eric Van Hensbergen <ericvh@...il.com>,
        Latchesar Ionkov <lucho@...kov.net>,
        Dominique Martinet <asmadeus@...ewreck.org>,
        v9fs-developer@...ts.sourceforge.net, dhowells@...hat.com,
        Trond Myklebust <trondmy@...merspace.com>,
        Anna Schumaker <anna.schumaker@...app.com>,
        Steve French <sfrench@...ba.org>,
        Dominique Martinet <asmadeus@...ewreck.org>,
        Jeff Layton <jlayton@...hat.com>,
        Matthew Wilcox <willy@...radead.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Omar Sandoval <osandov@...ndov.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-afs@...ts.infradead.org, linux-nfs@...r.kernel.org,
        linux-cifs@...r.kernel.org, ceph-devel@...r.kernel.org,
        v9fs-developer@...ts.sourceforge.net,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 06/67] nfs, cifs, ceph,
 9p: Disable use of fscache prior to its rewrite

Temporarily disable the use of fscache by the various Linux network
filesystems, apart from afs, so that the fscache core can be rewritten.

Signed-off-by: David Howells <dhowells@...hat.com>
cc: Dave Wysochanski <dwysocha@...hat.com>
cc: Trond Myklebust <trond.myklebust@...merspace.com>
cc: Anna Schumaker <anna.schumaker@...app.com>
cc: linux-nfs@...r.kernel.org
cc: Jeff Layton <jlayton@...nel.org>
cc: Ilya Dryomov <idryomov@...il.com>
cc: ceph-devel@...r.kernel.org
cc: Steve French <sfrench@...ba.org>
cc: linux-cifs@...r.kernel.org
cc: Eric Van Hensbergen <ericvh@...il.com>
cc: Latchesar Ionkov <lucho@...kov.net>
cc: Dominique Martinet <asmadeus@...ewreck.org>
cc: v9fs-developer@...ts.sourceforge.net
---

 fs/9p/Kconfig      |    2 +-
 fs/ceph/Kconfig    |    2 +-
 fs/cifs/Kconfig    |    2 +-
 fs/fscache/Kconfig |    4 ++++
 fs/nfs/Kconfig     |    2 +-
 5 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/fs/9p/Kconfig b/fs/9p/Kconfig
index d7bc93447c85..b11c15c30bac 100644
--- a/fs/9p/Kconfig
+++ b/fs/9p/Kconfig
@@ -14,7 +14,7 @@ config 9P_FS
 if 9P_FS
 config 9P_FSCACHE
 	bool "Enable 9P client caching support"
-	depends on 9P_FS=m && FSCACHE || 9P_FS=y && FSCACHE=y
+	depends on 9P_FS=m && FSCACHE_OLD || 9P_FS=y && FSCACHE_OLD=y
 	help
 	  Choose Y here to enable persistent, read-only local
 	  caching support for 9p clients using FS-Cache
diff --git a/fs/ceph/Kconfig b/fs/ceph/Kconfig
index 94df854147d3..77ad452337ee 100644
--- a/fs/ceph/Kconfig
+++ b/fs/ceph/Kconfig
@@ -21,7 +21,7 @@ config CEPH_FS
 if CEPH_FS
 config CEPH_FSCACHE
 	bool "Enable Ceph client caching support"
-	depends on CEPH_FS=m && FSCACHE || CEPH_FS=y && FSCACHE=y
+	depends on CEPH_FS=m && FSCACHE_OLD || CEPH_FS=y && FSCACHE_OLD=y
 	help
 	  Choose Y here to enable persistent, read-only local
 	  caching support for Ceph clients using FS-Cache
diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
index 3b7e3b9e4fd2..c5477abbcff0 100644
--- a/fs/cifs/Kconfig
+++ b/fs/cifs/Kconfig
@@ -188,7 +188,7 @@ config CIFS_SMB_DIRECT
 
 config CIFS_FSCACHE
 	bool "Provide CIFS client caching support"
-	depends on CIFS=m && FSCACHE || CIFS=y && FSCACHE=y
+	depends on CIFS=m && FSCACHE_OLD || CIFS=y && FSCACHE_OLD=y
 	help
 	  Makes CIFS FS-Cache capable. Say Y here if you want your CIFS data
 	  to be cached locally on disk through the general filesystem cache
diff --git a/fs/fscache/Kconfig b/fs/fscache/Kconfig
index b313a978ae0a..7850de3bdee0 100644
--- a/fs/fscache/Kconfig
+++ b/fs/fscache/Kconfig
@@ -38,3 +38,7 @@ config FSCACHE_DEBUG
 	  enabled by setting bits in /sys/modules/fscache/parameter/debug.
 
 	  See Documentation/filesystems/caching/fscache.rst for more information.
+
+config FSCACHE_OLD
+	bool
+	default n
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index 14a72224b657..a8b73c90aa00 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -170,7 +170,7 @@ config ROOT_NFS
 
 config NFS_FSCACHE
 	bool "Provide NFS client caching support"
-	depends on NFS_FS=m && FSCACHE || NFS_FS=y && FSCACHE=y
+	depends on NFS_FS=m && FSCACHE_OLD || NFS_FS=y && FSCACHE_OLD=y
 	help
 	  Say Y here if you want NFS data to be cached locally on disc through
 	  the general filesystem cache manager