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authorPeng Tao <bergwolf@gmail.com>2011-08-10 18:29:21 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2011-08-11 08:58:02 -0700
commit54a33b190aa5386dd214b4ad02986445e20e83d1 (patch)
tree47f4b28e45bcc2e8c60cc758b8e92f80f446c505 /fs/nfs/Kconfig
parent068ef739127af1faf6f342b56d41ceea89f76c75 (diff)
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: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Peng Tao <peng_tao@emc.com> Acked-by: Benny Halevy <bhalevy@tonian.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nfs/Kconfig')
-rw-r--r--fs/nfs/Kconfig14
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index be020771c6b..0d306131706 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -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)"