linux/fs/lockd
J. Bruce Fields af558e33be nfsd: common grace period control
Rewrite grace period code to unify management of grace period across
lockd and nfsd.  The current code has lockd and nfsd cooperate to
compute a grace period which is satisfactory to them both, and then
individually enforce it.  This creates a slight race condition, since
the enforcement is not coordinated.  It's also more complicated than
necessary.

Here instead we have lockd and nfsd each inform common code when they
enter the grace period, and when they're ready to leave the grace
period, and allow normal locking only after both of them are ready to
leave.

We also expect the locks_start_grace()/locks_end_grace() interface here
to be simpler to build on for future cluster/high-availability work,
which may require (for example) putting individual filesystems into
grace, or enforcing grace periods across multiple cluster nodes.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
2008-10-03 16:19:02 -04:00
..
clntlock.c lockd: Teach nlm_cmp_addr() to support AF_INET6 addresses 2008-09-29 18:13:39 -04:00
clntproc.c lockd: dont return EAGAIN for a permanent error 2008-07-25 10:53:47 -07:00
grace.c nfsd: common grace period control 2008-10-03 16:19:02 -04:00
host.c lockd: Update nsm_find() to support non-AF_INET addresses 2008-09-29 18:13:39 -04:00
Makefile nfsd: common grace period control 2008-10-03 16:19:02 -04:00
mon.c NSM: Use sockaddr_storage for sm_addr field 2008-09-29 18:13:39 -04:00
svc.c nfsd: common grace period control 2008-10-03 16:19:02 -04:00
svc4proc.c nfsd: common grace period control 2008-10-03 16:19:02 -04:00
svclock.c locks: add special return value for asynchronous locks 2008-07-25 10:53:47 -07:00
svcproc.c nfsd: common grace period control 2008-10-03 16:19:02 -04:00
svcshare.c lockd: fix sparse warning in svcshare.c 2008-04-23 16:13:39 -04:00
svcsubs.c lockd: Teach nlm_cmp_addr() to support AF_INET6 addresses 2008-09-29 18:13:39 -04:00
xdr.c lockd: Eliminate harmless mixed sign comparison in nlmdbg_cookie2a() 2008-01-30 02:06:02 -05:00
xdr4.c LOCKD: Convert printk's to dprintk's in lockd XDR routines 2007-10-09 17:17:12 -04:00