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* protocol: increase default group-cache-timeout to 300 secondsNiels de Vos2015-05-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | sssd uses 300 seconds by default too. There is no need to overload sssd with requests that it would have cached. Cherry picked from commit 34833364e9839f0036bccd58ec0a8a963e69263e: > BUG: 1215187 > Change-Id: I3f04ea8cc90180d863253a9f46d62b71810a7b34 > Signed-off-by: Niels de Vos <ndevos@redhat.com> > Reviewed-on: http://review.gluster.org/10371 > Tested-by: Gluster Build System <jenkins@build.gluster.com> > Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> > Reviewed-by: Vijay Bellur <vbellur@redhat.com> Change-Id: I3f04ea8cc90180d863253a9f46d62b71810a7b34 BUG: 1215189 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/10523 Tested-by: Gluster Build System <jenkins@build.gluster.com> Tested-by: NetBSD Build System Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: Fix ignoring geo-rep safe errorsKotresh HR2015-05-041-7/+9
| | | | | | | | | | | | | | | | | Fix ignoring geo-rep safe errors in fuse layer and also ignore logging in client translator for mknod. Though it is rare, to happen with mknod, it might happen with history crawl on overlapping changelogs replay. BUG: 1217938 Change-Id: If06f7a6b6f86a315b4e033e294d6f6be67135cb8 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/10422 Reviewed-on: http://review.gluster.org/10533 Reviewed-by: Aravinda VK <avishwan@redhat.com> Tested-by: NetBSD Build System Tested-by: Gluster Build System <jenkins@build.gluster.com>
* geo-rep: Don't log geo-rep safe errors in mount logsKotresh HR2015-05-041-1/+1
| | | | | | | | | | | | | | | | | | | | | EEXIST and ENOENT are safe errors for geo-replication. Since mkdir is captured in all the bricks of the changelog. mkdir is tried multiple times as per the number of bricks. The first one to process by gsyncd will succeed and all others will get EEXIST. Hence EEXIST is a safe error and can be ignored. Similarly ENOENT also in rm -rf case. And also gsyncd validates these errors and log them in master if it is genuine error. This is up with the patch http://review.gluster.org/#/c/10048/ Hence ignoring above said safe errors. BUG: 1217938 Change-Id: I1962a85f23fe5e30448ceec1b6ddcb5724ed5627 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/10184 Reviewed-on: http://review.gluster.org/10501 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Aravinda VK <avishwan@redhat.com>
* build: make contrib/uuid dependency optionalNiels de Vos2015-04-101-1/+1
| | | | | | | | | | | | | | | | | | | On Linux systems we should use the libuuid from the distribution and not bundle and statically link the contrib/uuid/ bits. libglusterfs/src/compat-uuid.h has been introduced and should become an abstraction layer for different UUID APIs. Non-Linux operating systems should implement their compatibility layer there. Once all operating systems have an implementation in compat-uuid.h, we can remove contrib/uuid/ from the repository completely. Change-Id: I345e5357644be2521685e00358bb8c83c4ea0577 BUG: 1206587 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/10129 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* libglusterfs/syncop: Add xdata to all syncop callsRaghavendra Talur2015-04-081-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for xdata in both the request and response path of syncops. Few calls like lookup already had the support; have renamed variables in few places to maintain uniformity. xdata passed downwards is known as xdata_in and xdata passed upwards is known as xdata_out. There is an old patch by Jeff Darcy at http://review.gluster.org/#/c/8769/3 which does the same for some selected calls. It also brings in xdata support at gfapi level. xdata support at gfapi level would be introduced in subsequent patches. Change-Id: I340e94ebaf2a38e160e65bc30732e8fe1c532dcc BUG: 1158621 Signed-off-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-on: http://review.gluster.org/9859 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mount.glusterfs: mounting volumes with volume filesErnestas Lukoševičius2015-04-071-5/+4
| | | | | | | | | | | | | | | | | | | | This is a patch for bug-1208676. When using volume files to mount glusterfs volume, this line is always true: [ -z "$volume_id" -o -z "$server_ip" ] && { That's because at this place, $volume_id and $server_ip are set only and only if the $volfile_loc file was unreadable or undefined. Change-Id: Icdf7612ac13a8f953f2a2adaa426b6339cd9f8fd BUG: 1208676 Signed-off-by: Ernestas Lukoševičius <ernetas@gmail.com> Reviewed-on: http://review.gluster.org/10126 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* Avoid conflict between contrib/uuid and system uuidEmmanuel Dreyfus2015-04-043-31/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* fuse: Removal of dead codearao2015-03-311-4/+0
| | | | | | | | | | | | | CID: 1124386 Dead code/ Unreachable code and related unsed variable are removed. Change-Id: Iafd317f01778dfe61f8a0e5398341e4f3a62d7a5 BUG: 789278 Signed-off-by: arao <arao@redhat.com> Reviewed-on: http://review.gluster.org/9690 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: Fixing the coverity issuesNandaja Varma2015-03-312-6/+11
| | | | | | | | | | | | | Coverity CID: 1124806 1124692 Change-Id: I6dcf245ded9796fb42516eca63211d855262c26f BUG: 789278 Signed-off-by: Nandaja Varma <nandaja.varma@gmail.com> Reviewed-on: http://review.gluster.org/9629 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: add missing return in error path (CID 1288092)Michael Adam2015-03-311-0/+1
| | | | | | | | | | | | Fixes Coverity CID 1288092. Change-Id: I95347915b1dee6003d7a1cfb86f12cf2cd7310f8 BUG: 789278 Signed-off-by: Michael Adam <obnox@samba.org> Reviewed-on: http://review.gluster.org/10057 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Venky Shankar <vshankar@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* geo-rep: Add support for aclsKotresh HR2015-03-301-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for ACLS. When it sees SETXATTR in Changelog, it adds the file to data queue. rsync/tar+ssh will take care of syncing ACLS. User set ACLS will be synced to Slave. This requires "system.posix_acl_access" to go through when client-pid is equal GF_CLIENT_PID_GSYNCD in fuse layer. New config interface is introduced, sync-acls Which can be set using geo-rep config(Default is True) gluster volume geo-replication <VOLUME> <SLAVEHOST>::<SLAVEVOL> \ config sync-acls false Change-Id: I7eb3523fa72b8fed830efc98138891244e830d65 BUG: 1187021 Signed-off-by: Kotresh HR <khiremat@redhat.com> Reviewed-on: http://review.gluster.org/10001 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>
* build: only include sys/sysctl.h when sysctl() is usedNiels de Vos2015-03-231-1/+1
| | | | | | | | | | | BUG: 1198849 Change-Id: I9597b4b7f37994865f88b99651ea9ec89787f5cf Reported-by: Adam Borowski <kilobyte@angband.pl> URL: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=778790 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/9963 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* fuse: Fixing dereference after null checkarao2015-03-151-1/+1
| | | | | | | | | | | | | | | CID: 1124496 The pointer is not checked against null and is dereferenced anyway, which is now checked. Change-Id: Ib810546445596671b3656f01a14bbad02cdc221c BUG: 789278 Signed-off-by: arao <arao@redhat.com> Reviewed-on: http://review.gluster.org/9640 Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Use common loc-touchup in fuse/server/gfapiPranith Kumar K2015-03-081-17/+1
| | | | | | | | | | | Change-Id: Id41fb29480bb6d22c34469339163da05b98c1a98 BUG: 1115907 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8226 Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Replace /dev/stderr with >&2 in mount scriptsNico Schottelius2015-03-062-9/+12
| | | | | | | | | | | | | | | | /dev/stderr is not available on boot in CentOS 7 and thus mounting anything from /etc/fstab at boot time fails. Instead of using /dev/stderr, the standard error redirection ">&2" is being used. Change-Id: I15d07cd49e6b0392331047edb441925f48047b2b BUG: 1199545 Signed-off-by: Nico Schottelius <nico@freiheit.schottelius.org> Reviewed-on: http://review.gluster.org/9824 Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: Fix cores in notify function when this is executed in parallelShyam2015-01-122-21/+42
| | | | | | | | | | | | | | | | | | | | | | | The fuse notify function gets called by the epoll or the poll thread and till the point there is a single epoll thread, 2 notify instances would not race with each other. With the upcoming multi thread epoll changes, it is possible that 2 epoll threads invoke the notify function. As a result races in this function are fixed with this commit. The races seen are detailed in the bug, and the fix here is to enforce a (slightly) longer critical section when updating the fuse private structure and reserving state updates post error handling. Change-Id: I6974bc043cb59eb6dc39c5777123364dcefca358 BUG: 1180231 Signed-off-by: Shyam <srangana@redhat.com> Reviewed-on: http://review.gluster.org/9421 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* libglusterfs: change signature of syncop_(f)getxattrRavishankar N2015-01-051-1/+1
| | | | | | | | | | | | | | | | | Pass xdata dict to syncop_(f)getxattr calls. This patch [1/3] is required as a part of afr automated split-brain resolution implementation. Change-Id: I3970b3dd6daf64681a031e37f8e9afb14fb3d668 BUG: 1136769 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/9375 Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: protect checking/modifying graph->used with a mutexNiels de Vos2014-12-121-3/+9
| | | | | | | | | | | | | | | | | | While reviewing http://review.gluster.org/#/c/9060/ we noticed that fuse checks/modifies graph->used in a unlocked way. There is a potential race in case when fuse_graph_setup() gets called from two different threads (currently unlikely, but poller/notify() might change in future?). In libgfapi we came to the conclusion that each glfs structure can be used to protect the checking/updating of graph->used. In fuse this would be the fuse_private_t with sync_mutex. BUG: 1170643 Change-Id: If5ab5468d22fdb92cfb24a469f538f63f12baf78 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/9237 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
* core: fix remaining *printf formation warnings on 32-bitKaleb S. KEITHLEY2014-11-261-4/+5
| | | | | | | | | | | | | | | | | | This fixes a few lingering size_t problems. Of particular note are some uses of off_t for size params in function calls. There is no correct, _portable_ way to correctly print an off_t. The best you can do is use a scratch int64_t/PRId64 or uint64_t/PRIu64. Change-Id: I86f3cf4678c7dbe5cad156ae8d540a66545f000d BUG: 1110916 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/8105 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* core: fix Ubuntu code audit (cppcheck) resultsKaleb S. KEITHLEY2014-11-251-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | See also http://review.gluster.org/#/c/7693/, BZ 1091677 AFAICT these are false positives: [geo-replication/src/gsyncd.c:100]: (error) Memory leak: str [geo-replication/src/gsyncd.c:403]: (error) Memory leak: argv [xlators/nfs/server/src/nlm4.c:1201]: (error) Possible null pointer dereference: fde [xlators/cluster/afr/src/afr-self-heal-common.c:138]: (error) Possible null pointer dereference: __ptr [xlators/cluster/afr/src/afr-self-heal-common.c:140]: (error) Possible null pointer dereference: __ptr [xlators/cluster/afr/src/afr-self-heal-common.c:331]: (error) Possible null pointer dereference: __ptr Test program: [extras/test/test-ffop.c:27]: (error) Buffer overrun possible for long command line arguments. [tests/basic/fops-sanity.c:55]: (error) Buffer overrun possible for long command line arguments. the remainder are fixed with this change-set: [cli/src/cli-rpc-ops.c:8883]: (error) Possible null pointer dereference: local [cli/src/cli-rpc-ops.c:8886]: (error) Possible null pointer dereference: local [contrib/uuid/gen_uuid.c:369]: (warning) %ld in format string (no. 2) requires 'long *' but the argument type is 'unsigned long *'. [contrib/uuid/gen_uuid.c:369]: (warning) %ld in format string (no. 3) requires 'long *' but the argument type is 'unsigned long *'. [xlators/cluster/dht/src/dht-rebalance.c:1734]: (error) Possible null pointer dereference: ctx [xlators/cluster/stripe/src/stripe.c:4940]: (error) Possible null pointer dereference: local [xlators/mgmt/glusterd/src/glusterd-geo-rep.c:1718]: (error) Possible null pointer dereference: command [xlators/mgmt/glusterd/src/glusterd-replace-brick.c:942]: (error) Resource leak: file [xlators/mgmt/glusterd/src/glusterd-replace-brick.c:1026]: (error) Resource leak: file [xlators/mgmt/glusterd/src/glusterd-sm.c:249]: (error) Possible null pointer dereference: new_ev_ctx [xlators/mgmt/glusterd/src/glusterd-snapshot.c:6917]: (error) Possible null pointer dereference: volinfo [xlators/mgmt/glusterd/src/glusterd-utils.c:4517]: (error) Possible null pointer dereference: this [xlators/mgmt/glusterd/src/glusterd-utils.c:6662]: (error) Possible null pointer dereference: this [xlators/mgmt/glusterd/src/glusterd-utils.c:7708]: (error) Possible null pointer dereference: this [xlators/mount/fuse/src/fuse-bridge.c:4687]: (error) Uninitialized variable: finh [xlators/mount/fuse/src/fuse-bridge.c:3080]: (error) Possible null pointer dereference: state [xlators/nfs/server/src/nfs-common.c:89]: (error) Dangerous usage of 'volname' (strncpy doesn't always null-terminate it). [xlators/performance/quick-read/src/quick-read.c:586]: (error) Possible null pointer dereference: iobuf Rerunning cppcheck after fixing the above: As before, test program: [extras/test/test-ffop.c:27]: (error) Buffer overrun possible for long command line arguments. [tests/basic/fops-sanity.c:55]: (error) Buffer overrun possible for long command line arguments. As before, false positive: [geo-replication/src/gsyncd.c:100]: (error) Memory leak: str [geo-replication/src/gsyncd.c:403]: (error) Memory leak: argv [xlators/nfs/server/src/nlm4.c:1201]: (error) Possible null pointer dereference: fde [xlators/cluster/afr/src/afr-self-heal-common.c:138]: (error) Possible null pointer dereference: __ptr [xlators/cluster/afr/src/afr-self-heal-common.c:140]: (error) Possible null pointer dereference: __ptr [xlators/cluster/afr/src/afr-self-heal-common.c:331]: (error) Possible null pointer dereference: __ptr False positive after fix: [xlators/performance/quick-read/src/quick-read.c:584]: (error) Possible null pointer dereference: iobuf Change-Id: I20e0e3ac1d600b2f2120b8d8536cd6d9e17023e8 BUG: 1109180 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/8064 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mount:Handle -o transport option in mount.glusterfsMohammed Rafi KC2014-11-211-13/+5
| | | | | | | | | | | | | | | | | | | In current scenario ,when tcp transport type(default) specified for mounting,glusterfs mount script won't append '.tcp' to volume name.But to accommodate the change in http://review.gluster.org/#/c/9146/, we need to append ".tcp" with volfile-id if '-o transport=tcp' is given. Change-Id: I506edeb339de062087f820f10e17c7d67b8b63fe BUG: 1164079 Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com> Reviewed-on: http://review.gluster.org/9147 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: jiffin tony Thottan <jthottan@redhat.com> Reviewed-by: Raghavendra Talur <rtalur@redhat.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Tested-by: Raghavendra G <rgowdapp@redhat.com>
* core: use gf_time_fmt() instead of localtime()+strftime()Kaleb S. KEITHLEY2014-11-201-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | gf_time_fmt() has existed since 3.3; it provides consistent timestamps (i.e. UTC times) throughout the implementation. (BTW, the other name for UTC is GMT.) N.B. many (all?) commercial storage solutions use UTC time for logging. This makes for easier debugging across geographically distributed systems. Also adding a "%s" fmt for portably printing time as simple numeric value on systems regardless of whether 32-bit or 64-bit time_t. Plus a minor tweak to return a ptr to the dest-string to allow gf_time_fmt() to be passed as a param in a *printf(). Someday we should pick the "one true" timestamp format and revise all calls to gf_time_fmt() to use it instead of the five or six different formats. Change-Id: I78202ae14b7246fa424efeea56bf2463e14abfb0 BUG: 1109917 Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Reviewed-on: http://review.gluster.org/8085 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Portability fix: mount.glusterfsEmmanuel Dreyfus2014-11-131-2/+3
| | | | | | | | | | | | Remove bash-specific syntax from mount.glusterfs BUG: 1129939 Change-Id: Iec3a52686f7cee1825ac5a06c11fb8ac4d3e5d65 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/9044 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glusterd/snapshot: mount snapshot volume with read-only optionvmallika2014-11-101-0/+5
| | | | | | | | | | | | | | | | | | Snapshot volumes are readonly. If you mount the volume to the client it doesn't allow writes, but its attributes are rw which contradicts the functionality. mount script should set read-only attributes for snapshot volumes. Change-Id: I056253abd8dfe7b2b43a064fbdbd9c16b8eca679 BUG: 1132946 Signed-off-by: vmallika <vmallika@redhat.com> Reviewed-on: http://review.gluster.org/8518 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Avra Sengupta <asengupt@redhat.com> Reviewed-by: Rajesh Joseph <rjoseph@redhat.com> Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
* glusterfs: allow setxattr of keys with null values.Ravishankar N2014-09-291-3/+0
| | | | | | | | | | | | | | | Disk based file systems allow to get/set extended attribute key-value pairs where value can be null. Fuse/libgfapi clients must be able to do the same on a gluster volume. Change-Id: Ifc11134cc07f1a3ede43f9d027554dcd10b5c930 BUG: 1135514 Signed-off-by: Ravishankar N <ravishankar@redhat.com> Reviewed-on: http://review.gluster.org/8567 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* 32 bit fix: use off_t and not size_t for truncate()Emmanuel Dreyfus2014-09-251-7/+7
| | | | | | | | | | | | | | Make sure off_t and not size_t is used when holding file offsets for ftruncate()/truncate(). It works on 64 bit machines where sizeof(size_t) == sizeof(off_t) == 8, but breaks for big offsets on 32 bit machines because sizeof(size_t) == 4 and sizeof(off_t) == 8 BUG: 1129939 Change-Id: Ia2637be772ba9b11731d59fdbffbd269f0ff56c8 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8742 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* Always check for ENODATA with ENOATTREmmanuel Dreyfus2014-09-081-1/+1
| | | | | | | | | | | | | | | | | | Linux defines ENODATA and ENOATTR with the same value, which means that code can miss on on the two without breaking. FreeBSD does not have ENODATA and GlusterFS defines it as ENOATTR just like Linux does. On NetBSD, ENODATA != ENOATTR, hence we need to check for both values to get portable behavior. BUG: 764655 Change-Id: I003a3af055fdad285d235f2a0c192c9cce56fab8 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8447 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* mount/fuse: Handle fd resolution failuresPranith Kumar K2014-08-254-187/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: Even when the fd resolution failed, the fop is continuing on the new graph which may not have valid inode. This lead to NULL layout subvols in dht which lead to crash in fsync after graph migration. Fix: - Remove resolution error handling in FUSE_FOP as it was only added to handle fd migration failures. - check in fuse_resolve_done for fd resolution failures and fail the fop right away. - loc resolution failures are already handled in the corresponding fops. - Return errno from state->resolve.op_errno in resume functions. - Send error to fuse on frame allocation failures. - Removed unused variable state->resolved - Removed unused macro FUSE_FOP_COOKIE Change-Id: I479d6e1ff2ca626ad8c8fcb6f293022149474992 BUG: 1126048 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8402 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mount: Verify mount failure in mount.glusterfs wrapper.Humble Chirammal2014-08-081-0/+5
| | | | | | | | | | | | The result of mount command execution is not checked properly, thus no proper message given for the end user. This patch fix the same. Bug Id: 1128165 Change-Id: I3882e34e840ed15b5ce48ed5e1ad51208e2be913 Signed-off-by: Humble Chirammal <hchiramm@redhat.com> Reviewed-on: http://review.gluster.org/8438 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Niels de Vos <ndevos@redhat.com>
* build: make GLUSTERD_WORKDIR rely on localstatedirHarshavardhana2014-08-071-2/+2
| | | | | | | | | | | | | | | | | | | | | | - Break-way from '/var/lib/glusterd' hard-coded previously, instead rely on 'configure' value from 'localstatedir' - Provide 's/lib/db' as default working directory for gluster management daemon for BSD and Darwin based installations - loff_t is really off_t on Darwin - fix-off the warnings generated by clang on FreeBSD/Darwin - Now 'tests/*' use GLUSTERD_WORKDIR a common variable for all platforms. - Define proper environment for running tests, define correct PATH and LD_LIBRARY_PATH when running tests, so that the desired version of glusterfs is used, regardless where it is installed. (Thanks to manu@netbsd.org for this additional work) Change-Id: I2339a0d9275de5939ccad3e52b535598064a35e7 BUG: 1111774 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/8246 Tested-by: Gluster Build System <jenkins@build.gluster.com>
* Allow gluster to be used with linux automounterAnders Blomdell2014-07-271-1/+4
| | | | | | | | | | | | | Added (ignored) -n option to mount.glusterfs command Change-Id: I9209da215d38507cd9d01b1e9af4aecff4414f83 BUG: 1123004 Signed-off-by: Anders Blomdell <anders.blomdell@control.lth.se> Reviewed-on: http://review.gluster.org/8373 Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* fuse: fuse_readlink_cbk() - linkname NULL termination unnecessaryHarshavardhana2014-07-181-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | op_ret incremented to compensate for NULL terminating character leads to self referential loop where OSXFUSE which would reply on a same READLINK() over and over again ~~~ [2014-07-12 08:41:29.815473] T [fuse-bridge.c:1372:fuse_readlink_cbk] 0-glusterfs-fuse: 1: /a/b/1 => ../../1 [2014-07-12 08:41:29.815820] T [fuse-bridge.c:1372:fuse_readlink_cbk] 0-glusterfs-fuse: 0: /a/b/1 => ../../1 [2014-07-12 08:41:29.816165] T [fuse-bridge.c:1372:fuse_readlink_cbk] 0-glusterfs-fuse: 1: /a/b/1 => ../../1 ~~~ It happens due to the problem being (op_ret + 1) > strlen(linkname), for some odd reason this isn't an issue on Linux where there are odd safegaurds on these things - Example of following code ~~~ ((char *)linkname)[op_ret] = '\0'; send_fuse_data (this, finh, (void *)linkname, op_ret + 2048); <---- Here! ~~~ This behaves normally with no issue, the reasoning i have is that internally 'readlink()' is verified with strlen() again or perhaps the size is re-adjusted to the strlen() of `linkname` This isn't the case on OSX, one needs to make sure that ~~~ strlen(linkname) == op_ret ~~~ Otherwise you would get READLINK() loops as shown above. This patch fixes the problem. Many thanks to Anand Avati for helping me out on this. Change-Id: Ia35818de78a5e4d89bad03ab06e2c5ed6e6753a4 BUG: 1095525 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/8300 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* porting: Port for FreeBSD rebased from Mike Ma's effortsHarshavardhana2014-07-024-22/+26
| | | | | | | | | | | | | | | | | | | - Provides a working Gluster Management Daemon, CLI - Provides a working GlusterFS server, GlusterNFS server - Provides a working GlusterFS client - execinfo port from FreeBSD is moved into ./contrib/libexecinfo for ease of portability on NetBSD. (FreeBSD 10 and OSX provide execinfo natively) - More portability cleanups for Darwin, FreeBSD and NetBSD - Provides a new rc script for FreeBSD Change-Id: I8dff336f97479ca5a7f9b8c6b730051c0f8ac46f BUG: 1111774 Original-Author: Mike Ma <mikemandarine@gmail.com> Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/8141 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* Fix resolution issues across fuse/server/afrPranith Kumar K2014-06-141-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problems with fuse/server: Fuse loc touch up sets loc->name even when pargfid is not known. Server lookup does (pargfid, name) based lookup when name is set ignoring the gfid. Because of this server resolver finds that the lookup came on (null-pargfid, name) and fails the lookup with EINVAL. Fix: Don't set loc->name in loc_touchup if the pargfid is not known. Did the same even for server-resolver Problem with afr: Lets say there is a directory hierarchy a/b/c/d on the mount and the user is cd'ed into the directory. Bring down one of the bricks of replica and remove all directories/files to simulate disk replacement on that brick. Now this brick is brought back up. Creates on the cd'ed directory fail with ESTALE. Basically before sending a create of 'f' inside 'd', fuse sends a lookup to make sure the file is not present. On one of the bricks 'd' is present and 'f' is not so it sends ENOENT as response. On the new brick 'd' itself is not present. So it sends ESTALE. In afr ESTALE is considered to be special errno on witnessing which lookup has to fail. And ESTALE is given more priority than ENOENT. Due to these reasons lookup fails with ESTALE rather than ENOENT. Since lookup didn't fail with ENOENT, 'create' can't be issued so the command is failed with ESTALE. Solution: Afr needs to consider ESTALE errno normally and ENOENT needs to be given more priority so that operations like create can proceed even when only one of the brick is up and running. Whenever client xlator identifies that gfid-changed, it sets that information in lookup xdata. Afr uses this information to fail the lookup with ESTALE so that top xlator can send fresh lookup. Change-Id: Ica6ce01baef08620154050a635e6f97d51029ef6 BUG: 1106408 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/8015 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* user servicable snapshotsRaghavendra Bhat2014-05-291-0/+5
| | | | | | | | | | Change-Id: Idbf27dbe088e646a8ab81cedc5818413795895ea Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Signed-off-by: Anand Subramanian <anands@redhat.com> Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/7700 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* NetBSD build fixesEmmanuel Dreyfus2014-05-172-27/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Shell scripts: == is specific to bash and ksh. Use = instead. - Shell scripts: use sh instead of bash if bash functionnality is not used - Shell scripts: ${var/search/replace} is specific to bash - sed: The -i option is specific to GNU sed. - Makefiles: $< outside of generic rules only work in GNU make. - xdrproc_t() is not universally defined as variadic. Do not specify third argument if it is not used - NetBSD FUSE specific: only include <perfuse.h> in FUSE client code, it harms in other locations - configure: Search for gettext() in libintl as NetBSD stores it there - Like MacOS X, NetBSD has unmount(2) and not umount(2) (un vs u) Some other build issues previously included in this change were removed: - __THROW macro, addressed in http://review.gluster.com/#/c/7757/ - getmntent() compat shared with MacOS X, in http://review.gluster.com/#/c/7722/ This patchset adds warning fixes for mount_glusterfs BUG: 764655 Change-Id: I2f1faf8ff96362d3e2baf237b943df619011f1f4 Signed-off-by: Emmanuel Dreyfus <manu@netbsd.org> Reviewed-on: http://review.gluster.org/7783 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Harshavardhana <harsha@harshavardhana.net>
* fuse: minor improvements for readdir(plus)Niels de Vos2014-04-271-17/+16
| | | | | | | | | | | | | | | | Instead of using 'int' for the sizes, use a 'size_t' as it is more correct. Save the size of a fuse_dirent in a temporary variable so that strlen() on the filename is called fewer times. Also correcting some typos in comments. Change-Id: Ic62d9d729a86a1a6a53ed1354fce153bac01d860 BUG: 1074023 Reported-by: Kaleb S. KEITHLEY <kkeithle@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/7547 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* osx: Compilation fixesHarshavardhana2014-04-251-1/+3
| | | | | | | | | Change-Id: I822936cbeb4ec8af46be8e94644ea666b919ae5c BUG: 1089172 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Reviewed-on: http://review.gluster.org/7556 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* build: MacOSX Porting fixesHarshavardhana2014-04-243-158/+552
| | | | | | | | | | | | | | | | | | | | | git@forge.gluster.org:~schafdog/glusterfs-core/osx-glusterfs Working functionality on MacOSX - GlusterD (management daemon) - GlusterCLI (management cli) - GlusterFS FUSE (using OSXFUSE) - GlusterNFS (without NLM - issues with rpc.statd) Change-Id: I20193d3f8904388e47344e523b3787dbeab044ac BUG: 1089172 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Signed-off-by: Dennis Schafroth <dennis@schafroth.com> Tested-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Dennis Schafroth <dennis@schafroth.com> Reviewed-on: http://review.gluster.org/7503 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse: prevent READDIR(P) from writing to much data to /dev/fuseNiels de Vos2014-04-211-14/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In an environment with mixed architectures (32-bit servers, 64-bit client), it is possible that the on-wire Reply on a READDIR(P) procedure contains more direntries than the client can fit in the maximum size that the fuse-request indicated. A direntry is a dynamically sized structure, because the structure contains the name of the entry. The client sends a maximum size in the READDIR(P) Call to the server, and the server uses this size to limit the number of direntries to return. In case the server can pack more direntries in the requested maximum size (due to alignment differences between the architectures), it can happen that the client unpacks the list of direntries into a buffer that exceeds the maximum size that was given in the initial fuse-request. This change introduces a check for the maximum requested size of the fuse-response in fuse_readdir_cbk() and fuse_readdirp_cbk(). When the conversion from gluster-direntries to the fuse-direntry format takes place, the maximum size is checked, and the 'extra' direntries are discarded. The next readdir()/getdents() that is done, will fetch the just discarded direntries again. In addition to this bugfix, some extra logging in send_fuse_iov() and send_fuse_data() has been added to help diagnosing similar issues. Change-Id: If2eecfcdf9c248f3820035601446d2c89ff9d1a1 BUG: 1074023 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/7278 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse: allow xlators to request for direct-io-mode on virtual filesAnand Avati2014-04-201-2/+14
| | | | | | | | | | | | | | | | | | | Translators like meta, create virtual files with dynamic content generated only at the time of open(). Therefore the file size returned in lookup or stat is 0 (just like files in /proc). However the VFS does not read beyond the size, and if the size is 0, no READ ever reaches gluster for that file -- unless direct-io-mode is enabled. This patch allows translators to return "direct-io-mode" flag for such 0-byte virtual files in xdata of open_cbk/create_cbk. Change-Id: I3fe3312cd96baa4eecfe1247ab7255b4f455f049 BUG: 1089216 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/7506 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* fuse-resolve: loc_wipe() after inode_link()Anand Avati2014-04-201-2/+2
| | | | | | | | | | | | the inode to be linked may have the last ref. loc_wipe() can destroy it before inode_link() gets to ref it. Change-Id: Ic2d44084e6e9c8289f35cae82c8e4575af105398 BUG: 1089216 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/7505 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
* mount.glusterfs: return 32 in case of double mountingNiels de Vos2014-04-171-3/+3
| | | | | | | | | | | | | The mount.nfs helper returns 32 for this particular error case. It makes sense for mount.glusterfs to return the same error value. Change-Id: I628f4c93bc796bb096e91857195ffd3d296eaae9 BUG: 1031973 Reported-by: Deepak C Shetty <deepakcs@redhat.com> Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/7469 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mount.glusterfs: return an error when mounting failedNiels de Vos2014-04-111-21/+26
| | | | | | | | | | | | | | | | | | When mounting fails, mount.glusterfs incorrectly returns 0 for some error cases, it should return 1 instead. Also make sure that error messages are redirected to /dev/stderr and not printed to stdout. Unfortunately it is not possible with the current test-scripts to test commands like 'mount -t glusterfs ...'. Any mounting of Gluster volumes is done directly with the 'glusterfs' command instead. Change-Id: Ica9d45b6d5ae537de869a1fa0f6c3edab47225d1 BUG: 1031973 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/7441 Reviewed-by: Harshavardhana <harsha@harshavardhana.net> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* mount/fuse: Fix the NULL dereference errors reported by coverity.Poornima2014-02-171-0/+2
| | | | | | | | | Change-Id: I9df57e11b115d7323931735c86b586c0b65fa414 BUG: 789278 Signed-off-by: Poornima <pgurusid@redhat.com> Reviewed-on: http://review.gluster.org/6990 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* mount.glusterfs: backward compatible option for root-squashingRaghavendra Bhat2014-02-121-0/+7
| | | | | | | | | Change-Id: I74fa6686cff84cfad4a2587a0061e6bb2beea081 BUG: 954057 Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com> Reviewed-on: http://review.gluster.org/6975 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* protocol/server: do not do root-squashing for trusted clientsRaghavendra Bhat2014-02-103-1/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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>
* mount.glusterfs/glusterfsd: Add dummy deprecated *fetch-attempts optionsHarshavardhana2014-02-031-0/+6
| | | | | | | | | | | | | | | volfile-max-fetch-attempts and fetch-attempts were not deprecated properly at 'b610f1be7cd71b8f3e51c224c8b6fe0e7366c8cf'. Provide a way for backward compatibility for broken third party apps. Change-Id: I597b50df08823e74691c5a20a4da4d13aab4b7ff BUG: 1045309 Signed-off-by: Harshavardhana <harsha@harshavardhana.net> Signed-off-by: Humble Chirammal <hchiramm@redhat.com> Reviewed-on: http://review.gluster.org/6544 Reviewed-by: Humble Devassy Chirammal <humble.devassy@gmail.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* mount/fuse: adding a setxattr filter pass for geo-rep create.Ajeet Jha2014-01-281-0/+2
| | | | | | | | | | | | | Adding filter pass for setxattr when key is "glusterfs.gfid.newfile". This was blocking creates at slave volume. Change-Id: I61455abd8688c52ac6894b5a04ba050076117ea3 BUG: 1054199 Signed-off-by: Ajeet Jha <ajha@redhat.com> Reviewed-on: http://review.gluster.org/6797 Reviewed-by: Venky Shankar <vshankar@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@gmail.com>
* syncop: Change return value of syncopPranith Kumar K2014-01-191-5/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Problem: We found a day-1 bug when syncop_xxx() infra is used inside a synctask with compilation optimization (CFLAGS -O2). Detailed explanation of the Root cause: We found the bug in 'gf_defrag_migrate_data' in rebalance operation: Lets look at interesting parts of the function: int gf_defrag_migrate_data (xlator_t *this, gf_defrag_info_t *defrag, loc_t *loc, dict_t *migrate_data) { ..... code section - [ Loop ] while ((ret = syncop_readdirp (this, fd, 131072, offset, NULL, &entries)) != 0) { ..... code section - [ ERRNO-1 ] (errno of readdirp is stored in readdir_operrno by a thread) /* Need to keep track of ENOENT errno, that means, there is no need to send more readdirp() */ readdir_operrno = errno; ..... code section - [ SYNCOP-1 ] (syncop_getxattr is called by a thread) ret = syncop_getxattr (this, &entry_loc, &dict, GF_XATTR_LINKINFO_KEY); code section - [ ERRNO-2] (checking for failures of syncop_getxattr(). This may not always be executed in same thread which executed [SYNCOP-1]) if (ret < 0) { if (errno != ENODATA) { loglevel = GF_LOG_ERROR; defrag->total_failures += 1; ..... } the function above could be executed by thread(t1) till [SYNCOP-1] and code from [ERRNO-2] can be executed by a different thread(t2) because of the way syncop-infra schedules the tasks. when the code is compiled with -O2 optimization this is the assembly code that is generated: [ERRNO-1] 1165 readdir_operrno = errno; <<---- errno gets expanded as *(__errno_location()) 0x00007fd149d48b60 <+496>: callq 0x7fd149d410c0 <address@hidden> 0x00007fd149d48b72 <+514>: mov %rax,0x50(%rsp) <<------ Address returned by __errno_location() is stored in a special location in stack for later use. 0x00007fd149d48b77 <+519>: mov (%rax),%eax 0x00007fd149d48b79 <+521>: mov %eax,0x78(%rsp) .... [ERRNO-2] 1281 if (errno != ENODATA) { 0x00007fd149d492ae <+2366>: mov 0x50(%rsp),%rax <<----- Because it already stored the address returned by __errno_location(), it just dereferences the address to get the errno value. BUT THIS CODE NEED NOT BE EXECUTED BY SAME THREAD!!! 0x00007fd149d492b3 <+2371>: mov $0x9,%ebp 0x00007fd149d492b8 <+2376>: mov (%rax),%edi 0x00007fd149d492ba <+2378>: cmp $0x3d,%edi The problem is that __errno_location() value of t1 and t2 are different. So [ERRNO-2] ends up reading errno of t1 instead of errno of t2 even though t2 is executing [ERRNO-2] code section. When code is compiled without any optimization for [ERRNO-2]: 1281 if (errno != ENODATA) { 0x00007fd58e7a326f <+2237>: callq 0x7fd58e797300 <address@hidden><<--- As it is calling __errno_location() again it gets the location from t2 so it works as intended. 0x00007fd58e7a3274 <+2242>: mov (%rax),%eax 0x00007fd58e7a3276 <+2244>: cmp $0x3d,%eax 0x00007fd58e7a3279 <+2247>: je 0x7fd58e7a32a1 <gf_defrag_migrate_data+2287> Fix: Make syncop_xxx() return (-errno) value as the return value in case of errors and all the functions which make syncop_xxx() will need to use (-ret) to figure out the reason for failure in case of syncop_xxx() failures. Change-Id: I314d20dabe55d3e62ff66f3b4adb1cac2eaebb57 BUG: 1040356 Signed-off-by: Pranith Kumar K <pkarampu@redhat.com> Reviewed-on: http://review.gluster.org/6475 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
generated by cgit (git 2.34.1) at 2024-11-15 05:09:38 +0000