[PATCH v7 07/31] netfs: Make a netfs helper module

[David Howells]

Make a netfs helper module to manage read request segmentation, caching
support and transparent huge page support on behalf of a network
filesystem.

Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Reviewed-and-tested-by: Jeff Layton <jlayton@xxxxxxxxxx>
Tested-by: Dave Wysochanski <dwysocha@xxxxxxxxxx>
Tested-By: Marc Dionne <marc.dionne@xxxxxxxxxxxx>
cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
cc: linux-mm@xxxxxxxxx
cc: linux-cachefs@xxxxxxxxxx
cc: linux-afs@xxxxxxxxxxxxxxxxxxx
cc: linux-nfs@xxxxxxxxxxxxxxx
cc: linux-cifs@xxxxxxxxxxxxxxx
cc: ceph-devel@xxxxxxxxxxxxxxx
cc: v9fs-developer@xxxxxxxxxxxxxxxxxxxxx
cc: linux-fsdevel@xxxxxxxxxxxxxxx
Link: https://lore.kernel.org/r/160588496284.3465195.10102643717770106661.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # rfc
Link: https://lore.kernel.org/r/161118135638.1232039.1622182202673126285.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # rfc
Link: https://lore.kernel.org/r/161161031028.2537118.1213974428943508753.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v2
Link: https://lore.kernel.org/r/161340391427.1303470.14884950716721956560.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v3
Link: https://lore.kernel.org/r/161539531569.286939.18317119181653706665.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v4
Link: https://lore.kernel.org/r/161653790328.2770958.6710423217716151549.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v5
Link: https://lore.kernel.org/r/161789071202.6155.16519256513958534906.stgit@xxxxxxxxxxxxxxxxxxxxxx/ # v6
---

 fs/netfs/Kconfig |    8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 fs/netfs/Kconfig

diff --git a/fs/netfs/Kconfig b/fs/netfs/Kconfig
new file mode 100644
index 000000000000..2ebf90e6ca95
--- /dev/null
+++ b/fs/netfs/Kconfig
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config NETFS_SUPPORT
+	tristate "Support for network filesystem high-level I/O"
+	help
+	  This option enables support for network filesystems, including
+	  helpers for high-level buffered I/O, abstracting out read
+	  segmentation, local caching and transparent huge page support.