tree 55807e37d047a799ffa8ed5e0f675ff62ab38c79
parent 4a0f9a321a113392b448e477018311d14fba2b34
author Steven Whitehouse <swhiteho@redhat.com> 1241009975 +0100
committer Steven Whitehouse <swhiteho@redhat.com> 1242041804 +0100

GFS2: Something nonlinear this way comes!

For some reason GFS2 has been missing support for non-linear
mappings. This patch fixes that, and also avoids taking any
locks for mmap in the O_NOATIME case. In fact we don't actually need
to take the lock here at all - just doing file_accessed() would be
enough, but we have to take the lock eventually and this helps
it hit disk (and thus be seen by other nodes) faster.

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