tree 01f6cf39be93dd5515481d09d282c503e05ef79f
parent e946217e4fdaa67681bbabfa8e6b18641921f750
author David Chinner <david@fromorbit.com> 1225343519 +1100
committer Lachlan McIlroy <lachlan@sgi.com> 1225343519 +1100

[XFS] Make use of the init-once slab optimisation.

To avoid having to initialise some fields of the XFS inode on every
allocation, we can use the slab init-once feature to initialise them. All
we have to guarantee is that when we free the inode, all it's entries are
in the initial state. Add asserts where possible to ensure debug kernels
check this initial state before freeing and after allocation.

SGI-PV: 981498

SGI-Modid: xfs-linux-melb:xfs-kern:31925a

Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>