quota: Split off quota tree handling into a separate file

There is going to be a new version of quota format having 64-bit
quota limits and a new quota format for OCFS2. They are both
going to use the same tree structure as VFSv0 quota format. So
split out tree handling into a separate file and make size of
leaf blocks, amount of space usable in each block (needed for
checksumming) and structures contained in them configurable
so that the code can be shared.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/fs/Kconfig b/fs/Kconfig
index b93425ad15de..c1ce3d8831d8 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -302,6 +302,10 @@ config PRINT_QUOTA_WARNING
           Note that this behavior is currently deprecated and may go away in
           future. Please use notification via netlink socket instead.
 
+# Generic support for tree structured quota files. Seleted when needed.
+config QUOTA_TREE
+         tristate
+
 config QFMT_V1
         tristate "Old quota format support"
         depends on QUOTA
@@ -313,6 +317,7 @@ config QFMT_V1
 config QFMT_V2
         tristate "Quota format v2 support"
         depends on QUOTA
+        select QUOTA_TREE
         help
           This quota format allows using quotas with 32-bit UIDs/GIDs. If you
           need this functionality say Y here.