[PATCH v4 0/2] nfs/sunrpc: allow freezing of tasks with NFS calls in flight

Jeff Layton
2011-11-29T12:37:07Z

This patchset is the fourth attempt at fixing the issues with suspending
a machine that has an active NFS mount.

The bug reported against Fedora is here:

https://bugzilla.redhat.com/show_bug.cgi?id=717735

The main difference from v3 is that I've fixed a stupid set of errors in
freezable_schedule_timeout_killable. The if condition was reversed from
what it should have been, and the code did not call freezer_count()
again when it was going to return early.

Tejun has mentioned that the extra try_to_freeze() calls are unnecessary
on top of the pm-freezer changes, but this set should work on as
expected on top of 3.2-ish kernels. In the meantime, I'll look over the
pm-freezer changes and see whether I need to make changes in this set
for 3.3.

Jeff Layton (2):
sunrpc: make rpc_wait_bit_killable handle freeze events
nfs: make TASK_KILLABLE sleeps attempt to freeze

fs/nfs/inode.c | 3 ++-
fs/nfs/nfs3proc.c | 3 ++-
fs/nfs/nfs4proc.c | 5 +++--
fs/nfs/proc.c | 3 ++-
include/linux/freezer.h | 42 ++++++++++++++++++++++++++++++++++++++++++
net/sunrpc/sched.c | 3 ++-
6 files changed, 53 insertions(+), 6 deletions(-)

--
1.7.6.4