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pnfs: Update documentation on the Layout Drivers 

Signed-off-by: Tom Haynes <loghyr@primarydata.com>
This commit is contained in:
Tom Haynes 2015-01-12 11:51:45 -08:00
parent d67ae825a5
commit 8f9cdcb26b
1 changed files with 7 additions and 6 deletions
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13
Documentation/filesystems/nfs/pnfs.txt
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@ -57,15 +57,16 @@ bit is set, preventing any new lsegs from being added.
layout drivers
--------------
PNFS utilizes what is called layout drivers. The STD defines 3 basic
layout types: "files" "objects" and "blocks". For each of these types
there is a layout-driver with a common function-vectors table which
are called by the nfs-client pnfs-core to implement the different layout
types.
PNFS utilizes what is called layout drivers. The STD defines 4 basic
layout types: "files", "objects", "blocks", and "flexfiles". For each
of these types there is a layout-driver with a common function-vectors
table which are called by the nfs-client pnfs-core to implement the
different layout types.
Files-layout-driver code is in: fs/nfs/nfs4filelayout.c && nfs4filelayoutdev.c
Files-layout-driver code is in: fs/nfs/filelayout/.. directory
Objects-layout-deriver code is in: fs/nfs/objlayout/.. directory
Blocks-layout-deriver code is in: fs/nfs/blocklayout/.. directory
Flexfiles-layout-driver code is in: fs/nfs/flexfilelayout/.. directory
objects-layout setup
--------------------