tree bff74fb13700e4087972fce94e45fd69dae7939b
parent f42ab0852946c1fb5103682c5897eb3da908e4b0
author Steven Whitehouse <swhiteho@redhat.com> 1303132689 +0100
committer Steven Whitehouse <swhiteho@redhat.com> 1303286497 +0100

GFS2: Make writeback more responsive to system conditions

This patch adds writeback_control to writing back the AIL
list. This means that we can then take advantage of the
information we get in ->write_inode() in order to set off
some pre-emptive writeback.

In addition, the AIL code is cleaned up a bit to make it
a bit simpler to understand.

There is still more which can usefully be done in this area,
but this is a good start at least.

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