From: Peng Tao Date: Wed, 10 Aug 2011 22:29:21 +0000 (-0400) Subject: NFS41: make PNFS_BLOCK selectable X-Git-Tag: next-20110812~95 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=54a33b190aa5386dd214b4ad02986445e20e83d1;p=karo-tx-linux.git 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 Signed-off-by: Peng Tao Acked-by: Benny Halevy Signed-off-by: Linus Torvalds --- diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig index be020771c6b4..0d306131706d 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)"