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* orangefs: do not wait for timeout if umountingMartin Brandenburg2018-03-241-1/+8
| | | | | | | | | | | | | | | | | [ Upstream commit b5a9d61eebdd0016ccb383b25a5c3d04977a6549 ] When the computer is turned off, all the processes are killed and then all the filesystems are umounted. OrangeFS should not wait for the userspace daemon to come back in that case. This only works for plain umount(2). To actually take advantage of this interactively, `umount -f' is needed; otherwise umount will issue a statfs first, which will wait for the userspace daemon to come back. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* orangefs: use list_for_each_entry_safe in purge_waiting_opsMartin Brandenburg2018-01-311-2/+2
| | | | | | | | | | | commit 0afc0decf247f65b7aba666a76a0a68adf4bc435 upstream. set_op_state_purged can delete the op. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* orangefs: rename most remaining global variablesMartin Brandenburg2016-08-161-5/+5
| | | | | | | | 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 <martin@omnibond.com>
* Orangefs: improve gossip statementsMike Marshall2016-03-031-10/+23
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: code sanitation.Mike Marshall2016-02-261-14/+30
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: code sanitationMike Marshall2016-02-241-10/+25
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: have ..._clean_interrupted_...() wait for copy to/from daemonAl Viro2016-02-191-12/+10
| | | | | | | | | | | | | | | | | | * 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 <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: remove vestigial ASYNC codeMike Marshall2016-02-191-7/+0
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: make some gossip statements more helpful.Mike Marshall2016-02-191-4/+10
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: bufmap rewriteAl Viro2016-02-191-61/+0
| | | | | | | | | | | | | | | | | | | | | 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 <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: lift handling of timeouts and attempts count to service_operation()Al Viro2016-02-191-25/+21
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* service_operation(): don't block signals, just use ..._killableAl Viro2016-02-191-15/+14
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: sanitize handling of request listAl Viro2016-02-191-50/+18
| | | | | | | | | | | | | | * checking that daemon is running (to decide whether we want to limit the timeout) should be done *after* the damn thing is included into the list; doing that before means that if the daemon gets shut down in between, we'll end up waiting indefinitely (== up to kill -9). * cancels should go into the head of the queue - the sooner they are picked, the less work daemon has to do and the sooner we get to free the slot held by aborted operation. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: get rid of loop in wait_for_matching_downcall()Al Viro2016-02-191-84/+45
| | | | | | | turn op->waitq into struct completion... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: delay freeing slot until cancel completesAl Viro2016-02-191-93/+40
| | | | | | | | | | | | | | | Make cancels reuse the aborted read/write op, to make sure they do not fail on lack of memory. Don't issue a cancel unless the daemon has seen our read/write, has not replied and isn't being shut down. If cancel *is* issued, don't wait for it to complete; stash the slot in there and just have it freed when cancel is finally replied to or purged (and delay dropping the reference until then, obviously). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: added a couple of WARN_ONs, perhaps just temporarily.Mike Marshall2016-02-041-0/+1
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: get rid of MSECS_TO_JIFFIESAl Viro2016-01-231-6/+4
| | | | | | | | | All timeouts are in _seconds_, so all calls are of form MSECS_TO_JIFFIES(n * 1000), which is a convoluted way to spell n * HZ. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs_clean_up_interrupted_operation: call with op->lock heldAl Viro2016-01-231-32/+4
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: reduce nesting in wait_for_matching_downcall()Al Viro2016-01-231-60/+58
| | | | | | | reorder if branches... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: remove cargo-culting spin_lock_irqsave() in service_operation()Al Viro2016-01-231-7/+0
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: hopefully saner op refcounting and lockingAl Viro2016-01-231-20/+4
| | | | | | | | | | | | | | | | | | * create with refcount 1 * make op_release() decrement and free if zero (i.e. old put_op() has become that). * mark when submitter has given up waiting; from that point nobody else can move between the lists, change state, etc. * have daemon read/write_iter grab a reference when picking op and *always* give it up in the end * don't put into hash until we know it's been successfully passed to daemon * move op->lock _lower_ than htab_in_progress_lock (and make sure to take it in purge_inprogress_ops()) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: make wait_for_...downcall() staticAl Viro2016-01-231-0/+3
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: move wakeups into set_op_state_{serviced,purged}()Al Viro2016-01-231-1/+0
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: make wait_for_...downcall() staticAl Viro2016-01-231-2/+2
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* make orangefs_clean_up_interrupted_operation() staticAl Viro2016-01-231-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: get rid of <censored> macrosAl Viro2016-01-231-0/+44
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: Fix some more global namespace pollution.Martin Brandenburg2016-01-041-4/+4
| | | | | | | This only changes the names of things, so there is no functional change. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: Don't pollute global namespaceRichard Weinberger2016-01-041-3/+3
| | | | | | | | | | | Prefix public functions with "orangefs_" do don't pollute the global namespace. This fixes a build issue on UML which also has block_signals(). Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: Don't wait the old-fashioned way.Mike Marshall2015-12-141-26/+11
| | | | | | | Get rid of add_wait_queue, set_current_state, etc, and use the wait_event() model. Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: change pvfs2 filenames to orangefsMike Marshall2015-12-041-2/+2
| | | | | | | Also changed references within source files that referred to header files whose names had changed. Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* OrangeFS: Change almost all instances of the string PVFS2 to OrangeFS.Yi Liu2015-12-031-35/+35
| | | | | | | | | | | | | | | | | | | | | | OrangeFS was formerly known as PVFS2 and retains the name in many places. I leave the device /dev/pvfs2-req since this affects userspace. I leave the filesystem type pvfs2 since this affects userspace. Further the OrangeFS sysint library reads fstab for an entry of type pvfs2 independently of kernel mounts. I leave extended attribute keys user.pvfs2 and system.pvfs2 as the sysint library understands these. I leave references to userspace binaries still named pvfs2. I leave the filenames. Signed-off-by: Yi Liu <yi9@clemson.edu> [martin@omnibond.com: clairify above constraints and merge] Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: update signal blocking code before Oleg sees it.Mike Marshall2015-10-031-3/+3
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: sooth most sparse complaintsMike Marshall2015-10-031-0/+7
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: kernel client part 5Mike Marshall2015-10-031-0/+522
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
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