tree cda8095f9befd25cbfaf5f63a4c8ca26870d45ca
parent 3cc3f710ce0effe397b830826a1a081fa81f11c7
author Steven Whitehouse <swhiteho@redhat.com> 1192462145 +0100
committer Steven Whitehouse <swhiteho@redhat.com> 1201248436 +0000

[GFS2] Remove useless i_cache from inodes

The i_cache was designed to keep references to the indirect blocks
used during block mapping so that they didn't have to be looked
up continually. The idea failed because there are too many places
where the i_cache needs to be freed, and this has in the past been
the cause of many bugs.

In addition there was no performance benefit being gained since the
disk blocks in question were cached anyway. So this patch removes
it in order to simplify the code to prepare for other changes which
would otherwise have had to add further support for this feature.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>