linux.git/fs/orangefs/waitqueue.c, branch v4.9

orangefs: rename most remaining global variables

2016-08-16T15:41:24+00:00

Only op_timeout_secs, slot_timeout_secs, and hash_table_size are left
because they are exposed as module parameters. All other global
variables have the orangefs_ prefix.

Signed-off-by: Martin Brandenburg

Orangefs: improve gossip statements

2016-03-03T18:46:48+00:00

Signed-off-by: Mike Marshall

Orangefs: code sanitation.

2016-02-26T15:21:12+00:00

Signed-off-by: Mike Marshall

Orangefs: code sanitation

2016-02-24T21:54:27+00:00

Signed-off-by: Mike Marshall

orangefs: have ..._clean_interrupted_...() wait for copy to/from daemon

2016-02-19T18:45:56+00:00

* turn all those list_del(&op->list) into list_del_init()
* don't pick ops that are already given up in control device
  ->read()/->write_iter().
* have orangefs_clean_interrupted_operation() notice if op is currently
  being copied to/from daemon (by said ->read()/->write_iter()) and
  wait for that to finish.
* when we are done copying to/from daemon and find that it had been
  given up while we were doing that, wake the waiting ..._clean_interrupted_...

As the result, we are guaranteed that orangefs_clean_interrupted_operation(op)
doesn't return until nobody else can see op.  Moreover, we don't need to play
with op refcounts anymore.

Signed-off-by: Al Viro 
Signed-off-by: Mike Marshall

Orangefs: remove vestigial ASYNC code

2016-02-19T18:45:55+00:00

Signed-off-by: Mike Marshall

Orangefs: make some gossip statements more helpful.

2016-02-19T18:45:55+00:00

Signed-off-by: Mike Marshall

orangefs: bufmap rewrite

2016-02-19T18:45:54+00:00

new waiting-for-slot logics:
	* make request for slot wait for bufmap to be set up if it
comes before it's installed *OR* while it's running down
	* make closing control device wait for all slots to be freed
	* waiting itself rewritten to (open-coded) analogues of wait_event_...
primitives - we would need wait_event_locked() and, pardon an obscenely
long name, wait_event_interruptible_exclusive_timeout_locked().
	* we never wait for more than slot_timeout_secs in total and,
if during the wait the daemon goes away, we only allow
ORANGEFS_BUFMAP_WAIT_TIMEOUT_SECS for it to come back.
	* (cosmetical) bitmap is used instead of an array of zeroes and ones
	* old (and only reached if we are about to corrupt memory) waiting
for daemon restart in service_operation() removed.

[Martin's fixes folded]

Signed-off-by: Al Viro 
Signed-off-by: Mike Marshall

orangefs: lift handling of timeouts and attempts count to service_operation()

2016-02-19T18:45:54+00:00

Signed-off-by: Al Viro 
Signed-off-by: Mike Marshall

service_operation(): don't block signals, just use ..._killable

2016-02-19T18:45:53+00:00

Signed-off-by: Al Viro 
Signed-off-by: Mike Marshall