glusterfs.git/api/src/glfs.h, branch v3.10.7

gfapi: set lkowner in glfd

2017-10-17T10:50:19+00:00

We need a provision to be able to set lkowner (which is
used to distinguish locks maintained by server) in gfapi.
Since the same lk_owner need to be used to be able to
flush the lock while closing the fd, store the lkowner
in the glfd structure itself.

A new API has been added to be able to set lkowner in glfd.

This is backport of below mainline fix -
 https://review.gluster.org/#/c/18429
 https://review.gluster.org/#/c/18522/

Change-Id: I67591d6b9a89c20b9617d52616513ff9e6c06b47
BUG: 1501955
Signed-off-by: Soumya Koduri

gfapi: add API to trigger events for debugging and troubleshooting

2017-02-14T01:53:23+00:00

Introduce glfs_sysrq() as a generic API for triggering debug and
troubleshoot events. This interface will be used by the feature to get
statedumps for applications using libgfapi.

The current events that can be requested through this API are:
 - 'h'elp: log a mesage with all supported events
 - 's'tatedump: trigger a statedump for the passed glfs_t

In future, this API can be used by a CLI to trigger statedumps from
storage servers. At the moment it is limited to take statedumps, but it
is extensible to set the log-level, clear caches, force reconnects and
much more.

> BUG: 1169302
> Change-Id: I18858359a3957870cea5139c79efe1365a15a992
> Original-author: Poornima G 
> Signed-off-by: Niels de Vos 
> Reviewed-on-master: http://review.gluster.org/16414
> Reviewed-by: Prashanth Pai 
> Reviewed-by: Kaleb KEITHLEY 

BUG: 1418981
Change-Id: I18858359a3957870cea5139c79efe1365a15a992
Signed-off-by: Shyam 
Reviewed-on: https://review.gluster.org/16600
Smoke: Gluster Build System 
Reviewed-by: Niels de Vos 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System

libgfapi: remove/revert glfs_ipc() changes targeted for 4.0

2017-01-24T10:42:07+00:00

revert glfs_ipc() to 3.7.0 signature and associated symbol versioning

Change-Id: Ieffe1d966234652091a4a9ae0b2c4b23f1297147
BUG: 1415279
Signed-off-by: Kaleb S. KEITHLEY 
Reviewed-on: https://review.gluster.org/16450
Smoke: Gluster Build System 
Reviewed-by: Shyamsundar Ranganathan 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System

gfapi: add glfs_free() to glfs.h

2016-10-18T14:17:08+00:00

Commit 4721188a154acd9a0a4c096d8d73e97f3bf1b2a9 introduces glfs_free()
but missed adding the function to the header. The symbol is correctly
available in the library though. Testcases do not seem to fail when a
function is missing for the headers...

The glusterfs-3.7.16 packages have been released with the missing
declaration in the header and symbol-maps. Still, the function is
available for applications:

    $ objdump -T usr/lib64/libgfapi.so.0 | grep -w glfs_free
    0000000000006aa0 g    DF .text	0000000000000035  GFAPI_3.7.16 glfs_free

Change-Id: Ia707ee957f090dbfca028192fcc81a83dfdf4ae0
BUG: 1344714
Reported-by: Jiffin Tony Thottan 
Signed-off-by: Niels de Vos 
Reviewed-on: http://review.gluster.org/15653
CentOS-regression: Gluster Build System 
Smoke: Gluster Build System 
Reviewed-by: jiffin tony Thottan 
NetBSD-regression: NetBSD Build System

gfapi: warn when glfs_realpath() returned malloc'd memory

2016-10-11T07:14:00+00:00

glfs_realpath() may return memory allocated with malloc(). Depending on
the memory allocator that the application uses, calling free() on the
returned string can cause segmentation faults or other problems.

Functions that allocate memory, need to match the free'ing of the same
memory allocator and memory accounting. glibc/malloc and jemalloc/free
do not match together (other allocators could probably trigger these
problems as well).

Applications need to provide a pre-allocated buffer, or in case
glfs_realpath() allocates the memory, glfs_free() should be used to free
it.

Change-Id: I5d721a7425674aa700db8a7a436cbedb95a5927f
BUG: 1370931
Signed-off-by: Niels de Vos 
Reviewed-on: http://review.gluster.org/15332
CentOS-regression: Gluster Build System 
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Kaleb KEITHLEY

gfapi: add missing glfs_truncate

2016-08-11T13:19:33+00:00

Change-Id: I80b016090a4d9d86278a0a5144dd58c0cbfe9bb2
BUG: 1365489
Signed-off-by: Jeff Darcy 
Signed-off-by: Oleksandr Natalenko 
Reviewed-on: http://review.gluster.org/13927
Smoke: Gluster Build System 
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Kaleb KEITHLEY

gfapi: use const qualifier for glfs_*timens()

2016-08-10T11:26:47+00:00

glfs_*timens() functions have the last argument
of struct timespec type that is supposed to be
const. Now using glfs_*timens() in fops, implemented
on top of FUSE library, leads to compiler-time warning
about discarding const qualifier.

Introducing const qualifier does not break ABI,
so let's just fix it.

Change-Id: Iea2a1018de7dce67f67a8229671a5978246de800
BUG: 1365506
Signed-off-by: Oleksandr Natalenko 
Reviewed-on: http://review.gluster.org/15119
Smoke: Gluster Build System 
Reviewed-by: Niels de Vos 
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System

gfapi: fix glfs_set_volfile_server doc

2016-08-02T17:06:22+00:00

Gluster supports volume file fetching over transports tcp and unix only.
The current glfs_set_volfile_server() doc misleads by mentioning rdma,
which is removed by this patch.

More about the discussion around @
http://www.gluster.org/pipermail/gluster-devel/2016-July/050114.html

Change-Id: I08cfe262fb9a82cb341f6adbe93594c8e628b7fe
BUG: 1359370
Signed-off-by: Prasanna Kumar Kalever 
Reviewed-on: http://review.gluster.org/14995
Tested-by: Prasanna Kumar Kalever 
Smoke: Gluster Build System 
CentOS-regression: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Shyamsundar Ranganathan 
Reviewed-by: Vijay Bellur

api: use versioned symbols for minor ABI change

2016-06-15T01:30:21+00:00

No need to expand the API/ABI. E.g., see how glfs_lookupat
changed between 3.7.0 and 3.7.4 IIRC

(I originally argued against versioning the library. I wanted
to just add new functions as they were needed, as was initially
done for glfs_ipc and glfs_ipc_xd in the master branch for 4.0.
But others strongly wanted versioning.)

Having made the decision to use versioning, I believe we should
continue. At least until we have a public decision that we're
no longer going to use versioning.

Change-Id: I0c3b2c1cbb297ae2b2864b647c224922987d74ad
Signed-off-by: Kaleb S KEITHLEY 
Reviewed-on: http://review.gluster.org/14717
Reviewed-by: Shyamsundar Ranganathan 
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Jeff Darcy

libgfapi: To support set_volfile-server-transport type "unix"

2015-11-17T15:46:37+00:00

This patch helps libgfapi to get the volfile using Unix domain socket.
run the attachment file in the bug to test.
The patch checks if the glfs_set_volfile_server transport is of type "unix",
If It is then uses rpc_transport_unix_options_build to get the volfile.

Change-Id: Ifd5d1e7c0d8cc9a906c3c3355b8977141e892a2f
BUG: 1279739
Signed-off-by: Mohamed Ashiq 
Signed-off-by: Humble Devassy Chirammal 
Reviewed-on: http://review.gluster.org/12563
Tested-by: NetBSD Build System 
Tested-by: Gluster Build System 
Reviewed-by: Niels de Vos 
Reviewed-by: Poornima G 
Reviewed-by: Raghavendra Talur 
Reviewed-by: Shyamsundar Ranganathan