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* protocol/server: do not do root-squashing for trusted clientsRaghavendra Bhat2014-02-101-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * As of now clients mounting within the storage pool using that machine's ip/hostname are trusted clients (i.e clients local to the glusterd). * Be careful when the request itself comes in as nfsnobody (ex: posix tests). So move the squashing part to protocol/server when it creates a new frame for the request, instead of auth part of rpc layer. * For nfs servers do root-squashing without checking if it is trusted client, as all the nfs servers would be running within the storage pool, hence will be trusted clients for the bricks. * Provide one more option for mounting which actually says root-squash should/should not happen. This value is given priority only for the trusted clients. For non trusted clients, the volume option takes the priority. But for trusted clients if root-squash should not happen, then they have to be mounted with root-squash=no option. (This is done because by default blocking root-squashing for the trusted clients will cause problems for smb and UFO clients for which the requests have to be squashed if the option is enabled). * For geo-replication and defrag clients do not do root-squashing. * Introduce a new option in open-behind for doing read after successful open. Change-Id: I8a8359840313dffc34824f3ea80a9c48375067f0 BUG: 954057 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/4863 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: Check the return status from state->resolve_nowVijaykumar M2013-11-141-7/+14
| | | | | | | | | Change-Id: I85fc6dd393449d365bb908b38c2827b58cb08171 BUG: 1030208 Signed-off-by: Vijaykumar M <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/6262 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse-bridge: enable --fopen-keep-cache based on FUSE_AUTO_INVAL_DATA.Anand Avati2013-09-171-1/+1
| | | | | | | | | | | | | If kernel supports FUSE_AUTO_INVAL_DATA then it is safe(r) to turn on --fopen-keep-cache mode by default. Users report significant improvement in perf by enabling the mode. Change-Id: Icf9df4b7b43950d7e25302d9c2a1a7d14571a9a9 BUG: 990744 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5770 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
* Revert "fuse: auxiliary gfid mount support"Amar Tumballi2013-08-211-25/+1
| | | | | | | | | | | | | | | | | This reverts commit 4c0f4c8a89039b1fa1c9c015fb6f273268164c20. Conflicts: xlators/mount/fuse/src/fuse-bridge.c For build issues added CREATE_MODE_KEY definition in: libglusterfs/src/glusterfs.h Change-Id: I8093c2a0b5349b01e1ee6206025edbdbee43055e BUG: 952029 Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5495 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse: auxiliary gfid mount supportRaghavendra G2013-07-191-1/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * files can be accessed directly through their gfid and not just through their paths. For eg., if the gfid of a file is f3142503-c75e-45b1-b92a-463cf4c01f99, that file can be accessed using <gluster-mount>/.gfid/f3142503-c75e-45b1-b92a-463cf4c01f99 .gfid is a virtual directory used to seperate out the namespace for accessing files through gfid. This way, we do not conflict with filenames which can be qualified as uuids. * A new file/directory/symlink can be created with a pre-specified gfid. A setxattr done on parent directory with fuse_auxgfid_newfile_args_t initialized with appropriate fields as value to key "glusterfs.gfid.newfile" results in the entry <parent>/bname whose gfid is set to args.gfid. The contents of the structure should be in network byte order. struct auxfuse_symlink_in { char linkpath[]; /* linkpath is a null terminated string */ } __attribute__ ((__packed__)); struct auxfuse_mknod_in { unsigned int mode; unsigned int rdev; unsigned int umask; } __attribute__ ((__packed__)); struct auxfuse_mkdir_in { unsigned int mode; unsigned int umask; } __attribute__ ((__packed__)); typedef struct { unsigned int uid; unsigned int gid; char gfid[UUID_CANONICAL_FORM_LEN + 1]; /* a null terminated gfid string * in canonical form. */ unsigned int st_mode; char bname[]; /* bname is a null terminated string */ union { struct auxfuse_mkdir_in mkdir; struct auxfuse_mknod_in mknod; struct auxfuse_symlink_in symlink; } __attribute__ ((__packed__)) args; } __attribute__ ((__packed__)) fuse_auxgfid_newfile_args_t; An initial consumer of this feature would be geo-replication to create files on slave mount with same gfids as that on master. It will also help gsyncd to access files directly through their gfids. gsyncd in its newer version will be consuming a changelog (of master) containing operations on gfids and sync corresponding files to slave. * Also, bring in support to heal gfids with a specific value. fuse-bridge sends across a gfid during a lookup, which storage translators assign to an inode (file/directory etc) if there is no gfid associated it. This patch brings in support to specify that gfid value from an application, instead of relying on random gfid generated by fuse-bridge. gfids can be healed through setxattr interface. setxattr should be done on parent directory. The key used is "glusterfs.gfid.heal" and the value should be the following structure whose contents should be in network byte order. typedef struct { char gfid[UUID_CANONICAL_FORM_LEN + 1]; /* a null terminated gfid * string in canonical form */ char bname[]; /* a null terminated basename */ } __attribute__((__packed__)) fuse_auxgfid_heal_args_t; This feature can be used for upgrading older geo-rep setups where gfids of files are different on master and slave to newer setups where they should be same. One can delete gfids on slave using setxattr -x and .glusterfs and issue stat on all the files with gfids from master. Thanks to "Amar Tumballi" <amarts@redhat.com> and "Csaba Henk" <csaba@redhat.com> for their inputs. Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Change-Id: Ie8ddc0fb3732732315c7ec49eab850c16d905e4e BUG: 952029 Reviewed-on: http://review.gluster.com/#/c/4702 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/4702 Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mount/fuse: Provide option to use/not use kernel-readdirpPranith Kumar K2013-07-121-0/+3
| | | | | | | | | | | | | | By default fuse kernel readdirp usage in fuse xlator is off. When mount option use-readdirp=yes is provided it starts using fuse-kernel's readdirp. Change-Id: Id37edc53b1adc1638186d956c2f74c1e4e48aa59 BUG: 983477 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/5322 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse-bridge: use READDIRPLUS support when availableAnand Avati2013-02-071-1/+1
| | | | | | | | | | | | | This patch makes use of READDIRPLUS call when support is available in the kernel. Change-Id: Iac78881179567856b55af1f46594a2b2859309f0 BUG: 908128 Signed-off-by: Anand V. Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/3905 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
* xlator/fuse: integrate fuse with event-historyRaghavendra Bhat2012-11-121-0/+89
| | | | | | | | | | | | | | | | | use event-history framework for saving and dumping (on necessity) important xlator specific information. Tests: Included the regression testcase. Change-Id: I6c0532e9ffe0b624286cdc4d2637b1bd2c0579e0 BUG: 858215 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Signed-off-by: root <root@thinkpad.(none)> Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/3925 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: create a new fd during fd-migration.Raghavendra G2012-10-021-2/+2
| | | | | | | | | | | | | | | | | | | | | | Migration of fd to new graph involves creation of a new fd to be used only for calls sent in that graph. Earlier approach of using same fd across all graphs, with the associated inode always guaranteed to be the one valid in currently active graph, had issues because of the broken immutability of the association of fd with an inode (for the life of fd). With this patch, there will be a basefd, which the kernel will be aware of. This basefd, contains a mapping of an fd which is valid in currently active graph. Signed-off-by: Raghavendra G <raghavendra@gluster.com> Change-Id: I2b459f05bc2690a66498be107fad6444e3158138 BUG: 802414 Reviewed-on: http://review.gluster.org/3566 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* mount/fuse: readdir() should return 32-bit inodes when 'enable-ino32' is usedNiels de Vos2012-09-181-0/+2
| | | | | | | | | | | | | | | | | | | | The glusterfs mount option 'enable-ino32' does not change the behaviour of readdir(). fuse_readdir_cbk() uses entry->d_ino directly, and this was missed in commit c13823bd16b26bc471d3efb15f63b76fbfdf0309. By adding the function gf_fuse_fill_dirent(), the fuse_dirent structure is filled in a similar way as the fuse_attr structure. This helper uses the same function to squash the 64-bit inode in a 32-bit attribute. Change-Id: Ia20e7144613124a58691e7935cb793b6256aef79 BUG: 850352 URL: http://lists.nongnu.org/archive/html/gluster-devel/2012-09/msg00051.html Tested-by: Steve Bakke <sbakke@netzyn.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/3955 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* All: License message changeVarun Shastry2012-09-131-7/+6
| | | | | | | | | | | | License message changed for server-side, dual license GPLV2 and LGPLv3+. Change-Id: Ia9e53061b9d2df3b3ef3bc9778dceff77db46a09 BUG: 852318 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/3940 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse-bridge: Pass unknown option down to fuseLubomir Rintel2012-09-121-0/+1
| | | | | | | | | | | | | | | | | | In Linux, certain "filesystem-specific" options (passed in string form in last argument to mount(2)), such as "rootcontext" or "context" are in fact common to all filesystems, including fuse. We should pass them down to the actual mount(2) call untouched. This is achieved by adding "fuse-mountopts" option to mount/fuse translator and adjusting the mount helper to propagate it with unrecognized options as they are encountered. BUG: 852754 Change-Id: I309203090c02025334561be235864d8d04e4159b Signed-off-by: Lubomir Rintel <lubo.rintel@gooddata.com> Reviewed-on: http://review.gluster.org/3871 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* mount/fuse: add mount-option "enable-ino32" for the native clientNiels de Vos2012-09-061-1/+3
| | | | | | | | | | | | | | By default the GlusterFS-native client uses 64-bit inodes. Some 32-bit applications can not handle these correctly. Introduce a client-side mount option "enable-ino32" which causes the FUSE-client to squash the 64-bit inodes into a 32-bit value. Change-Id: I3296d16528bfb50457b9675f6b8701234ed82ff0 BUG: 850352 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/3885 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* All: License message changeVarun Shastry2012-08-281-16/+7
| | | | | | | | | | | | | | | | | | The license message is changed to Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. This file is licensed to you under your choice of the GNU Lesser General Public License, version 3 or any later version (LGPLv3 or later), or the GNU General Public License, version 2 (GPLv2), in all cases as published by the Free Software Foundation. Change-Id: I07d2b63ed5fbbbd1884f1e74f2dd56013d15b0f4 BUG: 852318 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/3858 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: make background queue length configurableAmar Tumballi2012-08-221-0/+4
| | | | | | | | | | | | | | | | * also make 'congestion_threshold' an option * make 'congestion_threshold' as 75% of background queue length if not explicitely specified * in glusterfsd.c, moved all the fuse option dictionary setting code to separate function Change-Id: Ie1680eefaed9377720770a09222282321bd4132e Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 845214 Reviewed-on: http://review.gluster.org/3830 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* mount/fuse: ignore any erros that might've happened while resolving entry in ↵Raghavendra G2012-08-031-22/+93
| | | | | | | | | | | | | | | | | | | resolver. One error we hit was absence of gfid on backend. While the lookup code-path generates a new uuid and sets it on file, resolver code doesn't do that. Since, functionally (atleast after resolving parent inode, we would be resolving the path in new-graph) both resolver and lookup does same work, it would be no harm in ignoring errors during resolving the entry. This would help us to continue with the _extra_ work (like healing gfid as of now) in fuse_lookup_resume. Change-Id: If46d5e07c32e67b5744287a6ef55d0b0fe347689 BUG: 821138 Signed-off-by: Raghavendra G <raghavendra@gluster.com> Reviewed-on: http://review.gluster.com/3344 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse-bridge: expose negative entry caching of FUSEAnand Avati2012-07-191-0/+1
| | | | | | | | | | | | | | | | Fuse kernel module supports caching negative entries, enabled by specifying a timeout while returning ENOENT to lookup. This patch enables the functionality to be enabled with the command line. Also fixed a typo bug in mount.glusterfs.in. Change-Id: I47eab2834cca9a05887266358afbf504bbb4c489 BUG: 841417 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.com/3696 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
* FUSE: ignore setxattr for some keys from gsyncd aux mountVenky Shankar2012-07-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Context ------- gsyncd/geo-rep plans to rely on Rsync to sync extended attributes. When this is in place, all xattrs *visible* on the mount point would be candidate for syncing. This set could include gluster internal xattrs too (as xome xlators do not filter out in their cbks). Syncing these xattrs to the slave could result in unexpected functioning of the slave mount. Soln. ----- For gsyncd auxillary mounts (identified by client_pid -1), we only allow xtime related xattrs to go through and silently ignore (w/o propagating error back to the client) the rest of them. This provides a future proof solution as we need not worry about what xattrs show up on the mounts. Also, 'user' namespace xattrs are always passed through even if it's from a gsyncd aux mount. Signed-off-by: Venky Shankar <vshankar@redhat.com> Change-Id: I6fac5e03d2b25fa4cdece4b2897fb202617b3c23 BUG: 841062 Reviewed-on: http://review.gluster.com/3687 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* libglusterfs,mount/fuse: implement gidcache mechanism in fuse-bridgeBrian Foster2012-07-171-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | This change genericizes the cache mechanism implemented in commit 8efd2845 into libglusterfs/src/gidcache.[ch] and adds fuse-bridge as a client. The cache mechanism is fundamentally equivalent, with some minor changes: - Change cache key from uid_t to uint64_t. - Modify the cache add logic to locate and use an entry with a matching ID, should it already exist. This addresses a bug in the existing mechanism where an expired entry supercedes a newly added entry in lookup, causing repeated adds and flushing of a cache bucket. The fuse group cache is disabled by default. It can be enabled via the 'gid-timeout' fuse-bridge translator option and accompanying mount option (i.e., '-o gid-timeout=1' for a 1s entry timeout). BUG: 800892 Change-Id: I0b34a2263ca48dbb154790a4a44fc70b733e9114 Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.com/3676 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse/md-cache: add support for the 'fopen-keep-cache' mount optionBrian Foster2012-07-131-0/+1
| | | | | | | | | | | | | | | | | | | | | | fopen-keep-cache disables unconditional page-cache invalidations on file open in fuse (via FOPEN_KEEP_CACHE) and replaces that behavior with detection of remote changes and explicit invalidations from mount/fuse. This option improves local caching through the page cache and native client. This change defines a new 'invalidate' translator callback to identify when an inode's cache mapping has been determined to be invalid. md-cache implements the policy to detect and invoke inode invalidations. fuse-bridge and io-cache implement invalidate handlers to invalidate the respective caches (page cache in the case of fuse). BUG: 833564 Change-Id: I99818da5777eaf06276c1c0b194669f5bab92d48 Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.com/3584 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse: make SELinux support configurableAnand Avati2012-05-291-2/+1
| | | | | | | | | | | | | | Make support for SELinux labels (extended attributes) configurable and disabled by default as it can cause significant performance penalty when enabled (it need not be enabled unless specially crafted policies are set -- which is not by default) Change-Id: I97bc4b1c26cf055fd520e9bf2d49e52b14fe7515 BUG: 811217 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.com/3484 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* fuse-resolve: Attempt fd-migration in resolver, if migrationRaghavendra G2012-05-151-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | was never attempted. Since fd is always associated with an inode, we can create an fd only after resolver resolves an inode. So, there is a possibility that graph-switch can happen after resolver kicks in, but before it can complete, thereby resulting in the newly created fd not migrated to new graph. So, instead of migrating fds only during graph-switch, we give a second chance during fd-resolution. As an example, consider following sequence of events during a create call: 1. create wants to resolve parent inode, hence it starts resolution for parent 2. graph-switch happens (it can happen since fuse-request reader thread returns after winding lookup calls) 3. fd-migration of all the fds which are currently in fdtable is attempted (Note that the fd corresponding to current create call is not yet created and added to fd-table, hence it will not be migrated as part of graph switch) 4. resolution of parent triggered as part of create, completes 5. fd is created in fuse_create_resume and this fd is not migrated to new graph 6. Any future fops on this fd will fail with EBADF errors (create call itself will succeed) Change-Id: Iae06ecfaca24eaacb2e166ffefbbbb57446332ba BUG: 804592 Signed-off-by: Raghavendra G <raghavendra@gluster.com> Reviewed-on: http://review.gluster.com/3181 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* clean up handling of special client pidsCsaba Henk2012-04-231-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | - no need to name a lower boundary [drop GF_CLIENT_PID_MIN] - drop utility function to decide about pid speciality [gf_pid_client_check()]; when we implement uniform policy for special pids, use just comparison with GF_CLIENT_PID_MAX (currently such uniform policy exists in io-threads, where special clients get lowest priority) - io-threads: drop numeric literal, use GF_CLIENT_PID_MAX - xattr flipping (in fuse): - fuse_xattr_alloc_default() made static - avoid compiler warnings wrt. partial enum traversal in the switch by not casting the original numeric value to gf_client_pid_t (enum) type - trim down the switch to those cases with which there is something to do [GF_CLIENT_PID_GSYNCD, GF_CLIENT_PID_HADOOP] - eliminate the (theoretical) chance of succesfully returning from fuse_flip_xattr_ns() with unallocated nkey [as was the case with pids GF_CLIENT_PID_{MIN,MAX,DEFRAG}] Change-Id: Ic2b83b908d8e3be23a7fba1e5895869828a6194b BUG: 765433 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/3170 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse: allow requests during mount (needed for SELinux labels)Jeff Darcy2012-04-231-1/+4
| | | | | | | | | Change-Id: Ia1af402897e6a7290acf79617c34fdc804751729 BUG: 811217 Signed-off-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-on: http://review.gluster.com/3199 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse-bridge/fd-migration: document migration failures in fdctx.Raghavendra G2012-04-041-0/+1
| | | | | | | | | Change-Id: Ib85871e586f89f88dd7bf738fbb284b5d7b70a86 BUG: 809919 Signed-off-by: Raghavendra G <raghavendra@gluster.com> Reviewed-on: http://review.gluster.com/3085 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* core: adding extra data for fopsAmar Tumballi2012-03-221-1/+3
| | | | | | | | | | | | | with this change, the xlator APIs will have a dictionary as extra argument, which is passed between all the layers. This can be utilized for overloading in some of the operations. Change-Id: I58a8186b3ef647650280e63f3e5e9b9de7827b40 Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 782265 Reviewed-on: http://review.gluster.com/2960 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse-bridge/graph-cleanup: don't provide a cbk for cleanup syncop taskRaghavendra G2012-03-141-3/+0
| | | | | | | | | | | | | without a cbk, syntask_new returns only after the task is complete. Hence we don't have to wait on a conditional variable in the caller. Change-Id: Ie83894aa6fc02cc3a973930e67ae2b35de3b7647 BUG: 767862 Signed-off-by: Raghavendra G <raghavendra@gluster.com> Reviewed-on: http://review.gluster.com/2870 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* cleanup and fix xattr namespace flipCsaba Henk2012-03-071-1/+0
| | | | | | | | | | | | | | | | - function of actual flipping made static - clean out references to particular namespaces from flipping logic - namespaces involved in flipping defined at single location - fix fnmatch(3) invocation with reversed pattern and string arguments - instead of "user", use "system" to flip from, because latter is free from supervision of the VFS layer (cf. attr(5)) Change-Id: I3cc5836fadcad5b237fd5c67d0dcaea63aee9164 BUG: 798716 Signed-off-by: Csaba Henk <csaba@redhat.com> Reviewed-on: http://review.gluster.com/2890 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com>
* fuse-bridge: Handle graph-switch.Raghavendra G2012-02-211-4/+36
| | | | | | | | | | | | | | | | | The purpose of this patch is to let protocol/client know when its transports can be disconnected, without application running on gluster mount noticing any effects of graph switch. In order to do this, we migrate all fds and blocked locks to new graph. Once this migration is complete and there are no in-transit frames as viewed by fuse-bridge, we send a PARENT_DOWN event to its children. protocol/client on receiving this event, can disconnect up its transports. Change-Id: Idcea4bc43e23fb077ac16538b61335ebad84ba16 BUG: 767862 Reviewed-on: http://review.gluster.com/2734 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* core: add an extra flag to readv()/writev() APIAmar Tumballi2012-02-141-0/+1
| | | | | | | | | | | | needed to implement a proper handling of open flag alterations using fcntl() on fd. Change-Id: Ic280d5db6f1dc0418d5c439abb8db1d3ac21ced0 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 782265 Reviewed-on: http://review.gluster.com/2723 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse: fix resolver to handle graph switches properlyAnand Avati2012-02-081-14/+22
| | | | | | | | | | | | | | perform resolution on the latest graph by caching it in state->itable and use fuse_nodeid as just a hint to the possible final resolved inode (in case it was resolved off the latest graph). GFID is the primary key for resolving inodes on the latest graph. Change-Id: I3921c6f59c9ff80e4ff076bec3bd334423fc36cc BUG: 785675 Reviewed-on: http://review.gluster.com/2703 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* core: add 'fremovexattr()' fopAmar Tumballi2012-01-251-0/+1
| | | | | | | | | | | so operations can be done on fd for extended attribute removal Change-Id: Ie026f1b53793aeb4ae33e96ea5408c7a97f34bf6 Signed-off-by: Amar Tumballi <amar@gluster.com> BUG: 766571 Reviewed-on: http://review.gluster.com/778 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* core: GFID filehandle based backend and anonymous FDsAnand Avati2012-01-201-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. What -------- This change introduces an infrastructure change in the filesystem which lets filesystem operation address objects (inodes) just by its GFID. Thus far GFID has been a unique identifier of a user-visible inode. But in terms of addressability the only mechanism thus far has been the backend filesystem path, which could be derived from the GFID only if it was cached in the inode table along with the entire set of dentry ancestry leading up to the root. This change essentially decouples addressability from the namespace. It is no more necessary to be aware of the parent directory to address a file or directory. 2. Why ------- The biggest use case for such a feature is NFS for generating persistent filehandles. So far the technique for generating filehandles in NFS has been to encode path components so that the appropriate inode_t can be repopulated into the inode table by means of a recursive lookup of each component top-down. Another use case is the ability to perform more intelligent self-healing and rebalancing of inodes with hardlinks and also to detect renames. A derived feature from GFID filehandles is anonymous FDs. An anonymous FD is an internal USABLE "fd_t" which does not map to a user opened file descriptor or to an internal ->open()'d fd. The ability to address a file by the GFID eliminates the need to have a persistent ->open()'d fd for the purpose of avoiding the namespace. This improves NFS read/write performance significantly eliminating open/close calls and also fixes some of today's limitations (like keeping an FD open longer than necessary resulting in disk space leakage) 3. How ------- At each storage/posix translator level, every file is hardlinked inside a hidden .glusterfs directory (under the top level export) with the name as the ascii-encoded standard UUID format string. For reasons of performance and scalability there is a two-tier classification of those hardlinks under directories with the initial parts of the UUID string as the directory names. For directories (which cannot be hardlinked), the approach is to use a symlink which dereferences the parent GFID path along with basename of the directory. The parent GFID dereference will in turn be a dereference of the grandparent with the parent's basename, and so on recursively up to the root export. 4. Development --------------- 4a. To leverage the ability to address an inode by its GFID, the technique is to perform a "nameless lookup". This means, to populate a loc_t structure as: loc_t { pargfid: NULL parent: NULL name: NULL path: NULL gfid: GFID to be looked up [out parameter] inode: inode_new () result [in parameter] } and performing such lookup will return in its callback an inode_t populated with the right contexts and a struct iatt which can be used to perform an inode_link () on the inode (without a parent and basename). The inode will now be hashed and linked in the inode table and findable via inode_find(). A fundamental change moving forward is that the primary fields in a loc_t structure are now going to be (pargfid, name) and (gfid) depending on the kind of FOP. So far path had been the primary field for operations. The remaining fields only serve as hints/helpers. 4b. If read/write is to be performed on an inode_t, the approach so far has been to: fd_create(), STACK_WIND(open, fd), fd_bind (in callback) and then perform STACK_WIND(read, fd) etc. With anonymous fds now you can do fd_anonymous (inode), STACK_WIND (read, fd). This results in great boost in performance in the inbuilt NFS server. 5. Misc ------- The inode_ctx_put[2] has been renamed to inode_ctx_set[2] to be consistent with the rest of the codebase. Change-Id: Ie4629edf6bd32a595f4d7f01e90c0a01f16fb12f BUG: 781318 Reviewed-on: http://review.gluster.com/669 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* fuse: bring in the reverse invalidationAmar Tumballi2011-12-121-0/+11
| | | | | | | | | | | | | | | Thanks to Csaba Henk <csaba@gluster.com> for the patch Currently one can invalidate the inodes using 'setxattr()' with key 'inode-invalidate' (and any value). This can be further extended to do a purge of inode table itself. Change-Id: I165d5d585ed808b9e463ac0aad859ec64568c7a2 BUG: 762277 Signed-off-by: Amar Tumballi <amar@gluster.com> Reviewed-on: http://review.gluster.com/324 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* mount/fuse: Inherit direct-io-mode values from fds alreadyRaghavendra G2011-12-011-0/+7
| | | | | | | | | | | | | | | | opened, for a new fd being opened. When an fd is being opened, it inherits direct-io-mode characterstics (either enabled or disabled) from the fds already opened on inode. If none are opened and user has not specified the mode through cmdline options, default mode is used. Change-Id: I0c9e959100e9130e46bbd16d63eca278260635b4 BUG: 801 Reviewed-on: http://review.gluster.com/55 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Csaba Henk <csaba@gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* fuse: enable kernel read-only modeKaushal M2011-11-221-0/+1
| | | | | | | | | | | | | Enables kernel read-only mode on mounting with '-oro' and disables the gluster read-only translator from being loaded. As a result, '-oro' is reported correctly in the mount options. Change-Id: If94d97836b13668974cfac61b6e5d52e19880e10 BUG: 3742 Reviewed-on: http://review.gluster.com/655 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Csaba Henk <csaba@gluster.com>
* fuse: flip xattr key from user to trusted namespace for certainVenky Shankar2011-10-281-0/+3
| | | | | | | | | | | | | | | | | | | | clients. This is needed for gsyncd/hadoop-plugin running as non-super user to be able to request extended attributes under trusted namespace. Request for a key is made under 'user.' namespace and is flipped by fuse xlator for specific xattr name to the corresponding 'trusted.' extended attribute. Both applications set a identifier (client-pid) while doing a FUSE mount, which is checked by get/set/remove interfaces in FUSE translator. Change-Id: I72f77a5dd1ee1d69c8b0e09209449348dbcf879a BUG: 3701 Reviewed-on: http://review.gluster.com/563 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* add --user-map-root optionCsaba Henk2011-09-121-0/+1
| | | | | | | | | | | | | | | | | | This makes client fake that given user is a superuser, by changing FUSE requests coming with uid of user so that uid is set to 0. User can be given in numeric form, in which case it's treated as an uid directly, or else it's tried to be resolved to an uid with getpwnam(3). Implies --acl. Change-Id: I2d5a3d3e178be7ffdf22b46a56f33a7eeaaa7fe1 BUG: 3242 Reviewed-on: http://review.gluster.com/127 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* Change Copyright current yearPranith Kumar K2011-08-101-1/+1
| | | | | | | | Change-Id: I2d10f2be44f518f496427f257988f1858e888084 BUG: 3348 Reviewed-on: http://review.gluster.com/200 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* LICENSE: s/GNU Affero General Public/GNU General Public/Pranith Kumar K2011-08-061-3/+3
| | | | | | | | Change-Id: I3914467611e573cccee0d22df93920cf1b2eb79f BUG: 3348 Reviewed-on: http://review.gluster.com/182 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* fuse: introduce "noacl" option to disable ACL checksAnand Avati2011-07-081-3/+3
| | | | | | | Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2815 (Server-enforced ACLs) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2815
* mnt/fuse: Do a pthread_cond_broadcast for both CHILD_UP and CHILD_DOWN events.Raghavendra G2011-07-011-1/+1
| | | | | | | | Signed-off-by: Raghavendra G <raghavendra@gluster.com> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 3091 (rebalance fails with "transport endpoint not connected" in 3.2.1 rdma set-up) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=3091
* fuse: NetBSD portability fixesAnand Avati2011-05-301-1/+1
| | | | | | | | | | | Make sure NetBSD pulls proper FUSE header Thanks to: Emmanuel Dreyfus <manu@netbsd.org> Signed-off-by: Anand Avati <avati@gluster.com> BUG: 2923 (NetBSD port) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2923
* glusterfsd: log enhancementAmar Tumballi2011-03-171-1/+0
| | | | | | | | Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 2346 (Log message enhancements in GlusterFS - phase 1) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2346
* fuse-resolve: correction in resolve logicAmar Tumballi2011-02-221-8/+10
| | | | | | | | | | | | * bring in soft (gfid based) and hard (path based) resolving * 'fd' resolving to new graph is not yet done. * fuse-resolve works similar to server-resolve Signed-off-by: Amar Tumballi <amar@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2281 (I/O operations exit when add-brick is done) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2281
* implement "--client-pid" option which can forcibly set the pid value in ↵Csaba Henk2011-01-271-0/+3
| | | | | | | | | | messages to a predefined value Signed-off-by: Csaba Henk <csaba@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 2310 (georeplication) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=2310
* Copyright changesVijay Bellur2010-10-111-1/+1
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Change GNU GPL to GNU AGPLPranith K2010-10-041-3/+3
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1388 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1388
* Add log-level option to command volume setshishir gowda2010-10-041-1/+0
| | | | | | | | | | | log-level option to set brick's log-level client-log-level to set client's log-level Signed-off-by: shishir gowda <shishirng@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1789 (add log-level options to volume set) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1789
* Changes to replace flock with gf_flock across GlusterFS.Pavan Sondur2010-10-011-1/+1
| | | | | | | | Signed-off-by: Pavan Vilas Sondur <pavan@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 865 (Add locks recovery support in GlusterFS) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=865
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