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Commit 54a33b19 authored by Peng Tao's avatar Peng Tao Committed by Linus Torvalds
Browse files

NFS41: make PNFS_BLOCK selectable 



PNFS_BLOCK needs BLK_DEV_DM/MD, which is not a dependency for other
pnfs layout drivers. Seperate it out so others can still build when
BLK_DEV_DM/MD is not enabled.

Also change select to depends on to avoid build failures.

Reported-and-tested-by: default avatarRandy Dunlap <rdunlap@xenotime.net>
Signed-off-by: default avatarPeng Tao <peng_tao@emc.com>
Acked-by: default avatarBenny Halevy <bhalevy@tonian.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 068ef739

fs/nfs/Kconfig

+9 −5
Original line number Diff line number Diff line
@@ -79,12 +79,9 @@ config NFS_V4_1 
	depends on NFS_FS && NFS_V4 && EXPERIMENTAL

	select SUNRPC_BACKCHANNEL

	select PNFS_FILE_LAYOUT

	select PNFS_BLOCK

	select MD

	select BLK_DEV_DM

	help

	  This option enables support for minor version 1 of the NFSv4 protocol

	  (RFC 5661 and RFC 5663) in the kernel's NFS client.

	  (RFC 5661) in the kernel's NFS client.



	  If unsure, say N.
@@ -92,7 +89,14 @@ config PNFS_FILE_LAYOUT 
	tristate



config PNFS_BLOCK

	tristate

	tristate "Provide support for the pNFS Block Layout Driver for NFSv4.1 pNFS (EXPERIMENTAL)"

	depends on NFS_FS && NFS_V4_1 && BLK_DEV_DM

	help

	  Say M here if you want your pNFS client to support the Block Layout Driver

	  (RFC 5663). Requires Multiple devices driver support (DM) and Device mapper

	  support (BLK_DEV_DM).



	  If unsure, say N.



config PNFS_OBJLAYOUT

	tristate "Provide support for the pNFS Objects Layout Driver for NFSv4.1 pNFS (EXPERIMENTAL)"