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* gfapi: object handle based API extensionsR.Shyamsundar2013-10-111-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is an ongoing effort to integrate NFS Ganesha ( https://github.com/nfs-ganesha/nfs-ganesha/wiki ) with GlusterFS as one of the file system back ends. Towards this we need extensions to gfapi that can handle object based operations. Meaning, instead of using full paths or relative paths from cwd, it is required that we can work with APIs, like the *at POSIX variants, to be able to create, lookup, open etc. files and directories. Hence the objects are the files or directories themselves and we give out handles to these objects that can be used for further operations. This code drop is an initial implementation of the proposed APIs. The new APIs are implemented as glfs_h_XXX variants in the file glfs-handleops.c to mirror glfs-fops.c style. The code leverages holding onto inode references and doling these out as opaque/cookie type objects to the callers, to enable them to be used as handles in other operations. An fd based approach was considered, but due to the extra footprint that the fd structure and its counterparts would incur, this was dropped to take the approach of holding inode references themselves. Tested by extending glfsxmp.c to invoke and exercise the added APIs, and further tested with a reference integration of the same as an FSAL with NFS Ganesha. Change-Id: I23629c99e905b54070fa2e6565147812e5f3fa5d BUG: 1016000 Signed-off-by: R.Shyamsundar <srangana@redhat.com> Reviewed-on: http://review.gluster.org/5936 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* logging: Expose set_log_file_path() in libglusterfs.Vijay Bellur2013-09-241-1/+3
| | | | | | | | | | | | | This patch also changes the behavior of glfs_set_logging(). If logfile argument is not provided to glfs_set_logging(), libgfapi uses set_log_file_path() to create a logfile. Change-Id: I49ec66c7f16f5604ff2f7cf7b365b08a05b5460d BUG: 764890 Signed-off-by: Vijay Bellur <vbellur@redhat.com> Reviewed-on: http://review.gluster.org/5910 Reviewed-by: Anand Avati <avati@redhat.com> Tested-by: Anand Avati <avati@redhat.com>
* gfapi: implement a minimial glfs_fini()Anand Avati2013-09-171-0/+30
| | | | | | | | | | | | | | | At the very least, we should PARENT_DOWN on the currently active graph and disconnect ourselves from glusterd. Further cleanups underway. Change-Id: I9276686a84b0975b5ce272b4cbec1b80920d5c5c BUG: 1004519 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5788 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* gfapi: Add description of glfs_io_cbk function as a commentAnand Avati2013-08-231-0/+23
| | | | | | | | | | | | No code change, just add a comment describing the callback function type. Change-Id: I3a5c5b3d3fe042b4f535963dd477806832c15704 BUG: 839950 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5696 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: async discard supportBrian Foster2013-06-131-0/+3
| | | | | | | | | | | | | | From: Bharata B Rao <bharata@linux.vnet.ibm.com> Add glfs_discard_async() to meet QEMU's discard requirements. BUG: 963678 Change-Id: I97723107fca88dd96cddc08cd67a286645a37922 Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/5144 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* glusterfs: discard (hole punch) supportBrian Foster2013-06-131-0/+2
| | | | | | | | | | | | | | | | Add support for the DISCARD file operation. Discard punches a hole in a file in the provided range. Block de-allocation is implemented via fallocate() (as requested via fuse and passed on to the brick fs) but a separate fop is created within gluster to emphasize the fact that discard changes file data (the discarded region is replaced with zeroes) and must invalidate caches where appropriate. BUG: 963678 Change-Id: I34633a0bfff2187afeab4292a15f3cc9adf261af Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/5090 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gluster: add fallocate fop supportBrian Foster2013-06-131-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement support for the fallocate file operation. fallocate allocates blocks for a particular inode such that future writes to the associated region of the file are guaranteed not to fail with ENOSPC. This patch adds fallocate support to the following areas: - libglusterfs - mount/fuse - io-stats - performance/md-cache,open-behind - quota - cluster/afr,dht,stripe - rpc/xdr - protocol/client,server - io-threads - marker - storage/posix - libgfapi BUG: 949242 Change-Id: Ice8e61351f9d6115c5df68768bc844abbf0ce8bd Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.org/4969 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gfapi: add new API glfs_dup() to copy a file descriptorAnand Avati2013-05-291-0/+1
| | | | | | | | | | | | Duplicate a glfs_fd file descriptor. Inherit the internal fd_t with a reference. Change-Id: Ib30e9a46b608b9f78202957f4dab6ba6265a9ec0 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5109 Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* gfapi: add new API glfs_set_xlator_option()Anand Avati2013-05-021-0/+3
| | | | | | | | | | | | This is the equivalent of specifying --xlator-option command line argument to glusterfsd. Change-Id: I1171dd518a85db4bd456fa0790f450e889a956cd BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4927 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: POSIX locking supportAnand Avati2013-04-241-0/+6
| | | | | | | | | Change-Id: I37d9e1fb4a715094876be6af3856c1b4cf398021 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4881 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: implement readdirplus_r supportAnand Avati2013-04-241-0/+3
| | | | | | | | | | | This call is used by Samba VFS. Change-Id: Ib371502ad5a71b3b0e993f6b30e3dfb1f839c020 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4879 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: support for chdir() and familyAnand Avati2013-04-191-0/+8
| | | | | | | | | | | | Add support for chdir, fchdir, getcwd, realpath equivalents in GFAPI. These are required for the Samba VFS plugin. Change-Id: I91d2db9146994403c98961c489c7640c51d5add2 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4853 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* libgfapi: "tcp" is documented as the valid transport type instead of "socket".Avra Sengupta2012-11-281-2/+2
| | | | | | | | | Change-Id: I066e9be7755a535f385c102cdd1822adeda7f319 BUG: 860203 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/4226 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* gfapi: added more API callsAnand Avati2012-10-081-0/+81
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - stat - lstat - access - readlink - mknod - mkdir - rmdir - symlink - rename - link - opendir - closedir - seekdir - telldir - readdir_r - statvfs - chmod - fchmod - chown - lchown - fchown - utimens - lutimens - futimens - getxattr - lgetxattr - fgetxattr - setxattr - lsetxattr - fsetxattr - listxattr - llistxattr - flistxattr - removexattr - lremovexattr - fremovexattr Change-Id: Ic2467293ddfbcefaa9b41c82cec61a5602636833 BUG: 839950 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4022 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* gfapi: API/library for accessing gluster volumesAnand Avati2012-07-181-0/+366
Change-Id: Ie4cbcf91b58218bebf23cf951c313aceeb29f311 BUG: 839950 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.com/3664 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Bharata B Rao <bharata.rao@gmail.com>