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* features/gfid-access: Fix entry creation via setxattr for geo-repKotresh HR2015-11-271-45/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GEO-REP INTEROP WITH SHARD FEATURE Problem: Geo-replication uses setxattr interface of gfid-access xlator to create entries and send explicit setattr after entry creation to set uid and gid. But between entry creation and setattr, the inode would not be linked. Hence operation which accesses inode structure during setattr by any the below xlator fails. Solution: Linking inode would seem the obvious solution but, gfid-access xlator cannot link inodes and maintain it as it would result in same inode pointing to two different paths one being virtual .gfid/<gfid> path and other being actual path. The solution is to set uid and gid in frame->root->uid and frame->root->gid respectively from which posix extracts and sets. BUG: 1284453 Change-Id: I881c3541f7b056f25ee25b382957d71c821113c1 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/12206 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Aravinda VK <avishwan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/12731 Reviewed-by: Milind Changire <mchangir@redhat.com>
* Avoid conflict between contrib/uuid and system uuidEmmanuel Dreyfus2015-04-041-16/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | glusterfs relies on Linux uuid implementation, which API is incompatible with most other systems's uuid. As a result, libglusterfs has to embed contrib/uuid, which is the Linux implementation, on non Linux systems. This implementation is incompatible with systtem's built in, but the symbols have the same names. Usually this is not a problem because when we link with -lglusterfs, libc's symbols are trumped. However there is a problem when a program not linked with -lglusterfs will dlopen() glusterfs component. In such a case, libc's uuid implementation is already loaded in the calling program, and it will be used instead of libglusterfs's implementation, causing crashes. A possible workaround is to use pre-load libglusterfs in the calling program (using LD_PRELOAD on NetBSD for instance), but such a mechanism is not portable, nor is it flexible. A much better approach is to rename libglusterfs's uuid_* functions to gf_uuid_* to avoid any possible conflict. This is what this change attempts. BUG: 1206587 Change-Id: I9ccd3e13afed1c7fc18508e92c7beb0f5d49f31a Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/10017 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* feature/gfid-access: Send a named lookup before trying to create a file.Kotresh HR2015-02-162-10/+55
| | | | | | | | | | | | | | | | | | | Normally a named-lookup is done by the kernel on an entry before it issues a dentry creation fop like create/mknod etc. This will enable cluster translators like dht to maintain internal consistency like deleting a linkto file if no corresponding datafile is present etc. While handling file creation on auxiliary gfid mounts, we issue dentry creation fop without issuing a lookup. If there are stale-linkto files, creation would fail with EEXIST, however access would fail since there is no datafile. A named lookup would cleanup the linkto file allowing create to succeed. Change-Id: I2932107296adac710dd179df7d0946b8697a497a BUG: 1191413 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/9634 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* feature/gfid-access: Always send setattr down in overloaded setxattr.Kotresh HR2014-11-071-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: File ownership is not being preserved for root in geo-rep mountbroker setup. Analysis and Cause: Entry creations for geo-rep is overloaded in ga_setxattr. It happens in two phase, entry creation followed by setattr to preserve ownership as in master. If uid and gid of file being synced is root, setattr was not being sent down. Since, the file creation happens with non-root user in mountborker geo-rep setup, if setattr is not done explicitly, file ownership is not preserved for root. Solution: Always pass setattr down in overloaded ga_setxattr. Change-Id: I062215c1b2379d515f28ec7f271077ad37182c7e BUG: 1104954 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/9051 Reviewed-by: Aravinda VK <avishwan@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Venky Shankar <vshankar@redhat.com>
* features/gfid-access: Print real-gfid in statedumpPranith Kumar K2014-07-181-0/+24
| | | | | | | | | | Change-Id: I1cac8f3ccfcf1fda64ff8470d4f2000d05dcab63 BUG: 1117733 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8271 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/gfid-access: error handling for entry creationVenky Shankar2014-07-141-1/+7
| | | | | | | | | | | | | | | | | | | | | | | Proceed with setattr() only on a successfull entry creation. Winding a setattr() using a freshlyOC initiated inode would most likely fail in one translator or the other (e.g. DHT expecting the layout information to be set in the inode context), which is the case if the inode was not looked up. Therefore, gfid-access handles failure entry creations and passes the _correct_ errno back to the client instead of continuing with setattr() call and probably returning back incorrect errno. Also, filling up inode->gfid is required as the new inode is not looked up and ->gfid would be certainely required for inode operations. Change-Id: Ie92f5647a89bf558c07710ab0400bce69d59fc31 BUG: 1111490 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/8260 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/gfid-access: Fix entry operationsPranith Kumar K2014-07-061-7/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | Problem: When more than one aux-mounts are performing rmdir .gfid/<pargfid>/dir simultaneously, then sometimes a hang is observed. In gfid-access xlator When virtual parent/inode are replaced with real parent/inode in loc, virtual pargfid/gfid are not replaced with real pargfid/gfid respectively. Afr is using parent_loc->gfids to order the entry locks. But parent_loc->gfid contains random/virtual gfid generated by gfid-access xlator. Entrylk in client xlator is using loc->inod->gfid for sending entrylk which has 'real' gfid. Because the ordering is happening based on random gfids, One mount orders the locks as (L1, L2) where as the other orders them as (L2, L1) leading to a dead-lock thus a hang. Fix: Replace virtual pargfid/gfid with real pargfid/gfid when virtual-inodes are replaced with real-inodes in loc. BUG: 1114501 Change-Id: Ie94e816122ef9e7aad51605adbf49291de60827e Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8204 Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
* features/gfid-access: Handle loc modification correctly for virtual dirsPranith Kumar K2014-06-302-120/+142
| | | | | | | | | | Change-Id: I6e3321534dc2f711519b18e8bffb691ab952a8ba BUG: 1112659 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8163 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* feautre/gfid-access: Fix EINVAL when stat on .gfidKotresh H R2014-06-202-14/+45
| | | | | | | | | | | | | | | | | | | Problem: Some of the inode operations on '.gfid' virtual directory was resulting in the error EINVAL from dht after failing to find the layout. Solution: Inode operations on '.gfid' virtual directory should not wind further down and should be handled accordingly in the gfid-access translator itself. Change-Id: I156cb10ffea0c46b0d747e26f74538d7fb01a1dd BUG: 1105891 Signed-off-by: Kotresh H R <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/8011 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/gfid-access: Fix inode leaks and loc path corruptionPranith Kumar K2014-06-102-7/+9
| | | | | | | | | | Change-Id: Ib506db28415d57b344aa90e07e74666ad2063c64 BUG: 1104919 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8009 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kotresh HR <khiremat@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/gfid-access: Fix memory leaks.Raghavendra G2014-06-101-1/+27
| | | | | | | | | | | Change-Id: I90f6cdb1c8c4face1bb72a9cc77818d308389e45 BUG: 1104919 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/7982 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/gfid-access: calloc gfid and set in xdataRavishankar N2014-06-081-5/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: the gfid passed to ga_fill_tmp_loc() was a stack variable which the function set in the xdata dictionary. Accessing it in a later point in time gave unexpected values. This was easy to hit when AFR was involved like so: ga_mknod()--->xxx-->afr_mknod(): In afr_mknod transaction, once the stack-winds for the lock-phase are sent, the gfid in xdata becomes out of scope. When we send the actual op i.e. afr_mknod_wind(), the gfid in xdata is stale, causing posix to set junk gfids on the files. Fix: calloc the gfid and set it in the dict. Thanks to Pranith for the RCA! Change-Id: I0291fce34745268dc63095fc41fe31c7213dd5e1 BUG: 1104707 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/7978 Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/gfid-access: Fix possible inode memory corruption.Kotresh H R2014-04-031-10/+22
| | | | | | | | | | | | | | | | | During lookup, the inode is not ref'd. Added code to ref the inode in call path and unref in cbk path. Also fixed a case where we should always be putting linked inode into context as it is not guaranteed that we get same inode that we passed in a call to inode_link. Change-Id: Iaec083a9258658bef3047e83956729d3dbcd9a59 BUG: 1080295 Signed-off-by: Kotresh H R <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/7329 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com>
* geo-rep/gfid-access: Fix errno for non-existent GFID.Kotresh H R2014-02-271-0/+5
| | | | | | | | | | | | | | | | | | | Because of http://review.gluster.org/#/c/6318/ patch, ESTALE is returned for a lookukp on non-existent GFID. But ENOENT is more appropriate when lookup happens through virtual .gfid directory on aux-gfid-mount point. This is avoids confusion for the consumers of gfid-access-translator like geo-rep which expects ENOENT. Change-Id: I4add2edf5958bb59ce55d02726e6b3e801b101bb BUG: 1069191 Signed-off-by: Kotresh H R <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/7154 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* features/gfid-access: populating inode during virtual_lookup_cbk.Ajeet Jha2014-01-282-5/+6
| | | | | | | | | | | | | Setting appropriate ia_type and gfid for the inode, obtained during virtual_lookup_cbk of a directory by doing an "inode_link". Change-Id: I9582570c82e70ff5f1d4e441f9e9868ef82e9dc6 BUG: 1054199 Signed-off-by: Ajeet Jha <ajha@redhat.com> Reviewed-on: http://review.gluster.org/6723 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@gmail.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* features/gfid-access: fix lookup on .gfid/<parent>/bnameVenky Shankar2014-01-271-0/+17
| | | | | | | | | | | | | | In gfid translator, lookup was not handling the case when the lookup is sent on .gfid/<parent>/bname. In this case, we flip with fake inode of the parent with the real inode in loc and send it downwards. Change-Id: I639ff1dce10ffc045da419e333d455e208b6a0f0 BUG: 1057881 Signed-off-by: Venky Shankar <vshankar@redhat.com> Reviewed-on: http://review.gluster.org/6795 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfid-access: fix the issue of entry creation with wrong gfidAmar Tumballi2014-01-231-6/+39
| | | | | | | | | | | | | | | * dict_set was happening with a string instead of 'uuid_t' causing entry creations to happen with wrong gfid * revalidate was causing excessive ESTALE logs as lookup was happening on '.gfid/' path itself causing server to become clueless Change-Id: I3b76ce7fdec9c2ff785be21f506f859f489f80f0 BUG: 1054199 Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/6520 Reviewed-by: Anand Avati <avati@redhat.com> Tested-by: Anand Avati <avati@redhat.com>
* gfid-access: do chown() after creating the new entriesAmar Tumballi2013-12-102-8/+73
| | | | | | | | | | | | changing the 'frame->root->uid' on the fly is not a good idea as posix-acl xlator on brick process would fail the op. Change-Id: I996b43e4ce6efb04f52949976339dad6eb89bede Signed-off-by: Amar Tumballi <amarts@redhat.com> BUG: 847839 Reviewed-on: http://review.gluster.org/5833 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* features/gfid-access: Handle inode remap when parent inode is NULLPranith Kumar K2013-10-311-7/+2
| | | | | | | | | | Change-Id: Ic3f9d30d75df0bbbdf8fe28446fabe62d90fa854 BUG: 1024666 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/6194 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfid-access: Error logs for ga_newfile_parse_argsAvra Sengupta2013-09-051-11/+50
| | | | | | | | | | Change-Id: I7aab98a70793bee936272f0b795f4c22c3733dd2 BUG: 1001055 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/5705 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* core: remove GLUSTERFS_CREATE_MODE_KEY usageAmar Tumballi2013-08-231-12/+5
| | | | | | | | | Change-Id: I23b8cb7223b91a55af1cd4214f61bbe0e87351f6 BUG: 952029 Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5683 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gfid-access: virtual access to filesystem through gfid pathAmar Tumballi2013-08-215-0/+1312
BUG: 952029 Change-Id: I7405d473d369a4a951836eceda4faccbad19ce0e Signed-off-by: Amar Tumballi <amarts@redhat.com> Reviewed-on: http://review.gluster.org/5497 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
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