ext4: add largedir feature

This INCOMPAT_LARGEDIR feature allows larger directories to be created
in ldiskfs, both with directory sizes over 2GB and and a maximum htree
depth of 3 instead of the current limit of 2. These features are needed
in order to exceed the current limit of approximately 10M entries in a
single directory.

This patch was originally written by Yang Sheng to support the Lustre server.

[ Bumped the credits needed to update an indexed directory -- tytso ]

Signed-off-by: Liang Zhen <[email protected]>
Signed-off-by: Yang Sheng <[email protected]>
Signed-off-by: Artem Blagodarenko <[email protected]>
Signed-off-by: Theodore Ts'o <[email protected]>
Reviewed-by: Andreas Dilger <[email protected]>

0 files changed, 0 insertions, 0 deletions