Archipelago

FIx .gitignores for the new build system

Fix rc file parsing for the vlmc python tools

remove spurious include paths from compilation

README placeholder files for lib/ directories

Merge branch 'xseg' into vlmcd-as-blockd

move qa/ to tools/

filed: Fix lost wakeups between IO-threads

Race condition with free_io() / wait_cond() and alloc_io() /
cond_signal(), results in lost-wakeups between IO threads
and causes threads and eventually filed to deadlock.

Thread 1 Thread 2
free_io x -...

vlmc: Minor fix for prev commit

tools: Add configurable NR_OPS for blockd/filed

Yet another typo

vlmc-tool: Don't use hardcoded reqs number

Use correct sysfs attr (srcport) when mapping

blockd: Fix cli option/argument for nr_ops

Fix vlmc-filed.py free port scanning

Add support for filed in the vlmc tool

xsegbd/xsegdev: Fix xsegbd/xsegdev memory leak

xsegdev_get/put and the associated xsegdev->userfield struct member
were incorrectly used, resulting in a memory leak, where xsegdev
segment wasn't (v)freed at xsegdev unload.

Refs #3

Introduce various fixes, run end-to-end

Introduce various fixes, some aesthetic, to make
the infrastructure run end-to-end, xsegbd-to-filed
after merging of the filed and tools branches.

Minor parsing fixes for vlmc tool

Fixes for the vlmc-tool * Change the parsing to be compatible with ganeti rbd calls * Force python2.7 (needed by subprocess module)

Fix two instances of XS_ERROR

Merge branch 'filed' into xseg

portable and future-proof locks

relative pointer doubly linked lists

Helper scripts to setup and test xsge components

Fix a bug in device id assignment

Minor fix in request_fn

Initial support for target names

blockd will now only accept requests based on the target name (ie only for the
file it has opened), and will return an XS_ERROR reqeust otherwise.

xsegbd will now take a target name as an argument when adding a device via...

xq: Fix iteration bug in xq_head_to_tail()

Since __xq_pop_head() decrements head to point to the (new) first
available item in the queue, xq_head_to_tail() should iterate headq
forward (by incrementing head), not backwards. Backward iteration
results in xq corruption, which can easily be triggered using...

fix race condition on error when opening the same file from diffrent threads

add xinfo support

fix xseg_signal() posix retval and warning

initial threaded filed commit

Replace busy-wait loop in get_size with completion

make some field types arch-neutral

Simplify callback req demultiplexing (temp).

Until prepare_wait() is fixed to support an extra
argument, we can manually assign port.waitcue to the address of the
appropriate xsegbd_device struct before submitting the request,
simplifiying the callback request demultiplexing (don't iterate...

add support for larger than 1 segment requests + xseg_signaling.

Allow disksize override with sector_size parameter.

Allow a non-zero sector_size module parameter to override the disk
size returned by xsegbd_get_size()

Move segment unmap() in xsegbd module.

We cannot unmap a segment in xseg_destroy(), since the segment may not
be mapped. Since it currently only affects xsegbd, move it in
xsegbd_xseg_quit(), inside the xsegbd module.

Make xsegbd query peer for disk size(using X_INFO)

xsegbd will now send an X_INFO request to learn the size of the disk it's
mapping, instead of using the sector_size parameter at module load time.

Currently, xsegbd allocates its own segment, and thus it must wait until blockd...

Add (initial) support for X_INFO request operation

Add support for X_INFO request operation, to query information about a
target (X_INFO op support implemented in xseg-tool). Initial blockd
implementation 'returns' only the size of the target / file.

remove close with negative file descriptor

remove obsolete XSEG_{FLUSH,FUA}.

fix log_io printing beyond end-of-string garbage

relax shared segment access precautions

The shared array of peer type names is by design
append only, therefore no locking or copying strings
is needed to access it (only pointer conversions).
Append-only means that peer type names cannot be unregistered....

initialization from my own repository