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* gfapi: add glfs_free() to glfs.hNiels de Vos2016-10-181-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | 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 <jthottan@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/15653 CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: jiffin tony Thottan <jthottan@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
* gfapi: correct the gfapi.map for glfs_ipc@GFAPI_4_0_0Niels de Vos2016-10-131-1/+1
| | | | | | | | | | | | | | | | | Commit 85e959052148ec481823d55c8b91cdee36da2b43 introduced an inconsistency in gfapi.map. We need to figure out how to handle the glfs_ipc() function at one point... Change-Id: If53ad904318d5a60c14bd8b80685f7a852bf25e5 BUG: 1370931 Reported-by: Anoop C S <anoopcs@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/15633 Reviewed-by: Anoop C S <anoopcs@redhat.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org>
* gfapi: warn when glfs_realpath() returned malloc'd memoryNiels de Vos2016-10-111-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | 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 <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/15332 CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* gfapi: redesign the public interface for upcall consumersNiels de Vos2016-09-281-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The glfs_callback_arg and glfs_callback_inode_arg were allocated by gfapi, and expected to be free()'d by the application. However it is not reasonable to expect that applications use the same memory allocator to as the compiled libgfapi.so. For instance, it is possible that gfapi uses glibc malloc/free, and an application like NFS-Ganesha the versions from jemalloc. Mismatching of the malloc() and free() functions causes segmentation faults at best. In order to prevent problems like this in the future, the API for applications that consume upcalls has been remodeled. Any of the structures that gfapi allocates, should be free'd with glfs_free(). The members of the structures can not be accessed directly anymore, each has its own function to access now. Correcting the naming of the functions, structures and constants is a continuation of commit 2775dc64101ed37c8d9809bf9852dbf0746ee2b6. These new improvements not only have correct prefixes for the functions and structures, the naming also reflects more to the upcall framework and does not use "callback" anymore. Change-Id: I2b8bd5a0a82036d2abea1a217f5e5975a1d4fe93 BUG: 1344714 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/14701 Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: soumya k <skoduri@redhat.com> Reviewed-by: jiffin tony Thottan <jthottan@redhat.com>
* gfapi: add missing glfs_truncateJeff Darcy2016-08-111-2/+6
| | | | | | | | | | | | Change-Id: I80b016090a4d9d86278a0a5144dd58c0cbfe9bb2 BUG: 1365489 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Signed-off-by: Oleksandr Natalenko <oleksandr@natalenko.name> Reviewed-on: http://review.gluster.org/13927 Smoke: Gluster Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* api: use versioned symbols for minor ABI changeKaleb S KEITHLEY2016-06-141-1/+2
| | | | | | | | | | | | | | | | | | | | | | | 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 <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/14717 Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Smoke: Gluster Build System <jenkins@build.gluster.org> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> CentOS-regression: Gluster Build System <jenkins@build.gluster.org> Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
* experimental: add fdl (Full Data Logging) translatorJeff Darcy2016-02-131-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | NSR needs logging that is different than our existing changelog in several ways: * Full data, not just metadata * Pre-op, not post-op * High performance * Supports the concept of time-bounded "terms" Others (for example EC) might need the same thing. This patch adds such a translator. It also adds code to dump the resulting journals, and to replay them using syncops, plus (very rudimentary) tests for all of the above. Change-Id: I29680a1b4e0a9e7d5a8497fef302c46434b86636 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.org/12450 Smoke: Gluster Build System <jenkins@build.gluster.com> CentOS-regression: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
* libgfapi: adding 'follow' flag to glfs_h_lookupat()Jiffin Tony Thottan2015-08-241-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously glfs_h_lookupat won't follow the symlink, this patch introduces new flag `follow` which will resolve the same. Applications linking against the new library will need to use the new glfs_h_lookupat API call. In order to stay compatible with existing binaries that use the previous glfs_h_lookupat() function, the old symbol needs to stay available. Verification that there are two versions of glfs_h_lookupat: $ objdump -T /usr/lib64/libgfapi.so.0 | grep -w glfs_h_lookupat 0000000000015070 g DF .text 000000000000021e GFAPI_3.7.4 glfs_h_lookupat 0000000000015290 g DF .text 0000000000000008 (GFAPI_3.4.2) glfs_h_lookupat Testing with a binary (based on anonymous_fd_read_write.c from ./tests/) that was linked against the old library: $ objdump -T ./lookupat | grep -w glfs_h_lookupat 0000000000000000 DF *UND* 0000000000000000 GFAPI_3.4.2 glfs_h_lookupat Enable debugging for 'ld.so' so that we can check that the GFAPI_3.4.2 version of the symbol gets loaded: $ export LD_DEBUG_OUTPUT=lookupat.ld.log LD_DEBUG=all $ ./lookupat $ grep -w glfs_h_lookupat lookupat.ld.log.2543 2543: symbol=glfs_h_lookupat; lookup in file=./lookupat [0] 2543: symbol=glfs_h_lookupat; lookup in file=/lib64/libgfapi.so.0 [0] 2543: binding file ./lookupat [0] to /lib64/libgfapi.so.0 [0]: normal symbol `glfs_h_lookupat' [GFAPI_3.4.2] Change-Id: I8bf9b1c19a0585f681bc1a7f84aad1ccd0f75f6a BUG: 1252410 Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/11883 Reviewed-by: soumya k <skoduri@redhat.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: NetBSD Build System <jenkins@build.gluster.org>
* libgfapi : anonymous fd supportJiffin Tony Thottan2015-05-051-0/+2
| | | | | | | | | | | | | | | | Anonymous fd's are floating fd assigned to a glusterfs client without a explicit file open. Here either it will create a new anonymous fd or existing anonymous fd in the client stack for requested file.The anonymous fd's are mainly used for IO's. This patch introduces two api's glfs_h_anonymous_read and glfs_h_anonymous_write which performs read and write respectively Change-Id: Id646f2220e8387b2f8bb244c848dc1db6761444f BUG: 1204651 Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/9971 Tested-by: Gluster Build System <jenkins@build.gluster.com>
* api/libgfapi: Add support for statfs handleMohammed Rafi KC2015-05-051-0/+1
| | | | | | | | | | | | | snapd feature require statfs fops and thereby handle of statfs Change-Id: I037ee846aee3971826a73c592e15f1be27796c64 BUG: 1176837 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/10356 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
* gfapi: space/tab conversion in gfapi.mapNiels de Vos2015-03-191-5/+5
| | | | | | | | | | | | | The last two patches incorrectly add symbols indented by spaces. The rest of the file uses tabs. This change corrects these occurences. Change-Id: Ibfb057b78c1203a594bfeb73a2955e798e86c8e1 BUG: 1185654 Reported-by: Kaleb S. Keithley <kkeithle@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/9937 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* gfapi: add glfs_h_acl_set() and glfs_h_acl_get()Niels de Vos2015-03-181-0/+2
| | | | | | | | | | | | | | | | | | | | | These two functions add support for POSIX ACLs through the GFAPI-handle interface. The initial infrastructure for POSIX ACLs based on libacl has been added with the required changes to the POSIX xlator: - http://review.gluster.org/9627 NetBSD does not support POSIX ACLs, so using any of the functions should return ENOTSUP. URL: http://www.gluster.org/community/documentation/index.php/Features/Improved_POSIX_ACLs Change-Id: Ie74f3f963c3f9d576cb2f2a1e6d97e3cd4b01eda BUG: 1185654 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/9736 Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: APIs to store and process upcall notifications receivedSoumya Koduri2015-03-171-1/+2
| | | | | | | | | | | | | | | | | | | | | | | In case of any upcall cbk events received by the protocol/client, gfapi will be notified which queues them up in a list (<gfapi_cbk_upcall>). Applicatons are responsible to provide APIs to process & notify them in case of any such upcall events queued. Added a new API which will be used by Ganesha to repeatedly poll for any such upcall event notified (<glfs_h_poll_upcall>). A new test-file has been added to test the cache_invalidation upcall events. Below link has a writeup which explains the code changes done - URL: https://soumyakoduri.wordpress.com/2015/02/25/glusterfs-understanding-upcall-infrastructure-and-cache-invalidation-support/ Change-Id: Iafc6880000c865fd4da22d0cfc388ec135b5a1c5 BUG: 1200262 Signed-off-by: Soumya Koduri <skoduri@redhat.com> Reviewed-on: http://review.gluster.org/9536 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* every/where: add GF_FOP_IPC for inter-translator communicationJeff Darcy2015-03-171-1/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several features - e.g. encryption, erasure codes, or NSR - involve multiple cooperating translators which sometimes need a "private" means of communication amongst themselves. Historically we've used virtual or synthetic xattrs, but that's not very elegant and clutters up the getxattr/setxattr path which must also handle real xattr requests. This new fop should address that. The only argument is an int32_t "op" which should be recognized by the target translator. It is recommended that translators using these feature follow some convention regarding the ops that they define, to avoid conflicts. Using a hash of the target translator's type string as a base for a series of ops would probably be a good start. Any other information can be passed in both directions using xdata. The default behavior for this fop, as with any other, is to pass through to FIRST_CHILD. That makes use of this fop "transparent" to other translators that were written before it existed, but it also means that it only really works with pass-through translators. If a routing translator (such as DHT) or a fan-out translator (such as AFR) is involved, the IPC might not reach its intended destination unless those translators are modified to forward IPC fops along all paths. If an IPC gets all the way to storage/posix it is considered an error, much like an uncaught exception. We don't actually *do* anything in that case, but we do log it send back an EOPNOTSUPP error. This makes the "unrecognized opcode" condition distinguishable from the "no IPC support" condition (which would yield an RPC error instead) so clients can probe for the presence of a handler for their own favorite opcode and either use that or use old-school xattrs depending on the result. BUG: 1158628 Signed-off-by: Venky Shankar <vshankar@redhat.com> Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Change-Id: I84af1b17babe5b30ec03ecf027ae37d09b873968 Reviewed-on: http://review.gluster.org/8812 Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* api: versioned symbols in libgfapi.so for compatibilityKaleb S. KEITHLEY2015-01-121-0/+154
Use versioned symbols to keep libgfapi at libgfapi.so.0.0.0 Revisited to address broken build on Mac OS X See http://review.gluster.org/9036 Rebased to include http://review.gluster.org/#/c/9376/ (glfs_resolve()) but note that gerrit's "Rebase Change" couldn't do it. N.B. noticed that glfs_get_volumeid() decl in glfs.h was missing the __THROW, added it. On systems using ELF and the GNU toolchain, symbol versions are created with a .symver asm operand in the .c source file. Clang is claimed to be compatible with gcc, so we'll pretend for now that this also works with clang. On Mac OS X, aliases are created with __asm "magic" in the .h header file. In the normal case, when both the decl and defn match, that's all that's needed. In our case though the decl and defn don't match --- we have, e.g. a defn such as 'int glfs_foo(...)' and the corresponding decl is 'int pub_glfs_foo(...)'. To make this work we create the necessary aliases in the library at link time with the -alias_list link option. Note that this results in there being pairs of symbols in the .dylib, e.g. _pub_glfs_foo and _glfs_foo$GFAPI_3.4.0. We could use another link option, -unexported_symbols_list to elide the _pub_glfs_* symbols. (And we probably should.) Linux symbol versioning was essentially copied from Solaris; in general I would expect this to "just work" on Solaris, but until someone tries we don't really know. Change-Id: Icb96a3c2d80be7b6d7a6849bb9168f03a947f47c BUG: 1160709 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/9143 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com>
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