| Commit message (Collapse) | Author | Age | Files | Lines |
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Null character string is a valid xattr value in file system. But for
those xattrs processed by md-cache, it does not update its entries if
value is null('\0'). This results in ENODATA when those xattrs are
queried afterwards via getxattr() causing failures in basic operations
like create, copy etc in a specially configured Samba setup for Mac OS
clients.
On the other side snapview-server is internally setting empty string("")
as value for xattrs received as part of listxattr() and are not intended
to be cached. Therefore we try to maintain that behaviour using an
additional dictionary key to prevent updation of entries in getxattr()
and fgetxattr() callbacks in md-cache.
Credits: Poornima G <pgurusid@redhat.com>
Change-Id: I7859cbad0a06ca6d788420c2a495e658699c6ff7
Fixes: bz#1726205
Signed-off-by: Anoop C S <anoopcs@redhat.com>
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warning: ā%sā directive argument is null [-Wformat-overflow=]
Change-Id: I69b8d47f0002c58b00d1cc947fac6f1c64e0b295
updates: bz#1193929
Signed-off-by: SheetalPamecha <spamecha@redhat.com>
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* Also some logging enhancements in snapview-server
Change-Id: I6a7646771cedf4bd1c62806eea69d720bbaf0c83
fixes: bz#1715921
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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Change-Id: Ie0fe971e694101aa011d66aa496d0644669c2c5a
Updates: #389
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
Signed-off-by: ShyamsundarR <srangana@redhat.com>
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* Remove the options to load old symbol.
* keep only 'xlator_api' symbol from being exported using xlator.sym
* add xlator_api to all the xlators where its missing
NOTE: This covers all the xlators which has at least a test case
to validate its loading. If there is a translator, which doesn't
have any test, then we should probably remove that from codebase.
fixes: #164
Change-Id: Ibcdc8c9844cda6b4463d907a15813745d14c1ebb
Signed-off-by: Amar Tumballi <amarts@redhat.com>
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libglusterfs devel package headers are referenced in code using
include semantics for a program, this while it works can be better
especially when dealing with out of tree xlator builds or in
general out of tree devel package usage.
Towards this, the following changes are done,
- moved all devel headers under a glusterfs directory
- Included these headers using system header notation <> in all
code outside of libglusterfs
- Included these headers using own program notation "" within
libglusterfs
This change although big, is just moving around the headers and
making it correct when including these headers from other sources.
This helps us correctly include libglusterfs includes without
namespace conflicts.
Change-Id: Id2a98854e671a7ee5d73be44da5ba1a74252423b
Updates: bz#1193929
Signed-off-by: ShyamsundarR <srangana@redhat.com>
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The warning by clang is due to the fact that we check for
frame->root to be NULL, but in stack unwind, we ignore the
same.
If frame is non-NULL then frame->root is non-NULL as frame
creation ensures this. Further, across the code we do not
check both frame and frame->root for validity.
Hence to fix these clang issues, removing the check for
frame->root in the various functions.
NOTE: Initially clang reported 14 issues in the file, but
post commit 6eabefe6 the number reduced to 4, unsure why as
that commit does not address this issue.
Change-Id: I04b63f2d006a1f95773aae9f904b4bd3d5118e62
Updates: bz#1622665
Signed-off-by: ShyamsundarR <srangana@redhat.com>
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Currently, the snapdaemon can reach the lru limit of the inode table
and start sending forgets on the inodes that are least recently used.
snapview-server maintains the mapping between the domain of the
snapdaemon and the gfapi instance which it uses to access the snapshots
via a handle that is stored in the inode context of snapdaemon's inode.
The handle is glfs_h_object structure which itself points to the actual
inode present in the gfapi world.
But, when snapview-server receives forget on a inode, it deleted the
inode context without actually closing the handle it had obtained to
map the inode from snapdaemon to the inode in gfapi world.
So, this change makes sure that, the handle is closed as part of the
inode forget. And this closure of the handle will result in gfapi
world receiving forget and unref on its corresponding inode. But
care must be taken to ensure before the closure to ensure that
the gfapi instance from which the handle came from, is still valid
and not destroyed. Otherwise, sending a forget downward to the gfapi
world might result in the access of freed pointers. Hence, the
snapview-server xlator first checks whether that gfapi instance is
still there or not and then proceeds with closure of the handle.
Change-Id: Ia7bb45112d0c651cc95f2e54d33d925dbd6955b0
fixes: bz#1646728
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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Change-Id: Ib8bdf210a896423abcd7413dd4896d424ac0f561
fixes: bz#1626610
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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This patch fixes CID 1325525 (double free).
updates: bz#789278
Change-Id: I26a5f428dde83dd7708815f06830decf4068b94c
Signed-off-by: Sunny Kumar <sunkumar@redhat.com>
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When compiling in other architectures there appear many warnings. Some
of them are actual problems that prevent gluster to work correctly on
those architectures.
Change-Id: Icdc7107a2bc2da662903c51910beddb84bdf03c0
fixes: bz#1632717
Signed-off-by: Xavi Hernandez <xhernandez@redhat.com>
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Change-Id: Ia84cc24c8924e6d22d02ac15f611c10e26db99b4
Signed-off-by: Nigel Babu <nigelb@redhat.com>
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Used only once to store the return value of a function.
Change-Id: Ib2b9db847b5f652ce46f220297d9c7c3503eaea2
fixes: #230
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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* This is to ensure FIPS support
* Also changed the signature of svs_uuid_generate to
get xlator argument
* Added xxh64 wrapper functions in common-utils to
generate gfid using xxh64
- Those wrapper functions can be used by other xlators
as well to generate gfids using xxh64. But as of now
snapview-server is going to be the only consumer.
Change-Id: Ide66573125dd74122430cccc4c4dc2a376d642a2
Updates: #230
Signed-off-by: Raghavendra Manjunath <raghavendra@redhat.com>
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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PROBLEM:
========
USS design depends on snapview-server translator communicating with each
individual snapshot via gfapi. So, the snapview-server xlator maintains
the glfs instance (thus the snapshot) to which a inode belongs to by
storing it inside the inode context.
Suppose, a file from a snapshot is opened by a application, and the fd
is still valid from application's point of view (i.e. application has
not yet closed fd). Now, if the snapshot to which the opened file
belongs to is deleted, then the glfs_t instance corresponding to the
snapshot is destroyed by snapview-server as part of snap deletion.
But now, if the application does IO on the fd it has kept open, then
snapview server tries to send that request to the corresponding snap
via glfs instance for that snapshot stored in the inode context for
the file on which the application is sending the fop. And this results
in freed up glfs_t pointer being accessed and causes a segfault.
FIX:
===
For fd based operations, check whether the glfs instance that the inode
contains in its context, is still valid or not.
For non fd based operations, usually lookup should guarantee that. But
if the file was already looked up, and the client accessing the snap data
(either NFS, or native glusterfs fuse) does not bother to send a lookup
and directly sends a path based fop, then that path based fop should
ensure that the fs instance is valid.
Change-Id: I881be15ec46ecb51aa844d7fd41d5630f0d644fb
updates: bz#1602070
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
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Before calling gfapi from snapd, we need to set uid, gid
and groups in the context. This is required to do the
validation from posix acl xlator.
Change-Id: I181bea2570a69554ff363bf5a52478ff0363ea47
fixes: bz#1614168
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
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This patch fixes coverity issuse in snapview-server.c
CID : 1274119, 1325525
Scan details at [1].
[1]. https://scan6.coverity.com/reports.htm#v42401/p10714/fileInstanceId=84476369&defectInstanceId=25631967&mergedDefectId=778645
Change-Id: I825f09eabf84a2262a079c1f920a673727c5792b
updates: bz#789278
Signed-off-by: Sunny Kumar <sunkumar@redhat.com>
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Please review, it's not always just the comments that were fixed.
I've had to revert of course all calls to creat() that were changed
to create() ...
Only compile-tested!
Change-Id: I7d02e82d9766e272a7fd9cc68e51901d69e5aab5
updates: bz#1193929
Signed-off-by: Yaniv Kaul <ykaul@redhat.com>
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As nfs-ganesha, a wcc data contains pre/post attributes is return
in read/write rpc reply. nfs-ganesha get those attributes by
two getattr between the real read/write right now.
But, gluster has return pre/post attributes from glusterfsd,
those attributes are skipped in syncop/gfapi, if gfapi return them,
the upper user (nfs-ganesha) can use them directly without any
duplicate getattr.
Updates: #389
Change-Id: I7b643ae4241cfe2aeb17063de00192d81674024a
Signed-off-by: Kinglong Mee <mijinlong@open-fs.com>
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Coverity ID: 259
Coverity ID: 163
Change-Id: I7f7753b870715e1176826fb8dfbe81119750d113
BUG: 789278
Signed-off-by: Ashish Pandey <aspandey@redhat.com>
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protocol/server expects a child up event to successfully
configure the graph. In the actual brick graph, posix is
the one who decide to initiate the notification to the parent
that the child is up.
But in snapd graph there is no posix, hence the child up
notification was missing.
Ideally each xlator should initiate the child up event whenever
it see's that this is the last child xlator.
Change-Id: Icccdb9fe920c265cadaf9f91c040a0831b4b78fc
BUG: 1467513
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: https://review.gluster.org/17689
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
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Since there is already GF_FREE (value) near the out label, this
one is uneeded. Found by coverity.
Change-Id: Ib4a4e1a6af186e14fc75e7578c79beb58de053ec
BUG: 789278
Signed-off-by: Michael Scherer <misc@redhat.com>
Reviewed-on: https://review.gluster.org/17165
Smoke: Gluster Build System <jenkins@build.gluster.org>
Tested-by: Michael Scherer <misc@fedoraproject.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Amar Tumballi <amarts@redhat.com>
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http://review.gluster.org/14085 fixes a/the "leak" - via the
generated rpc/xdr headers - of pragmas that mask these warnings.
However 14085 won't pass the smoke test until all the warnings are
fixed.
Change-Id: I74cf7adf943f71e0de8d8f487db3cd2394ce16e8
BUG: 1369124
Signed-off-by: Kaleb S. KEITHLEY <kkeithle@redhat.com>
Reviewed-on: http://review.gluster.org/15251
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
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In snapview-server if the lookup came on missing entry
then it does not have proper context to see if it is the
case of "Stale file handle" or ENOENT. We should not log
this error in GF_LOG_ERROR level, instead this should be
a debug log.
Change-Id: I8f7cc0e117e9a6dd9482da2e94a56f2ed731a442
BUG: 1339149
Signed-off-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-on: http://review.gluster.org/14514
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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If 'a' and 'b' are hardlinks, we need to generate a virtual
gfid for these files so that the inode number for 'a' and 'b'
are same.
Generate gfid as below:
gfid_of_a = MD5(snapname + back_end_gfid(a))
if '/dir1/a' and '/dir2/b' are hardlinks, then inode number should be
same for
all below files:
/mnt/.snaps/snap1/dir1/a
/mnt/.snaps/snap1/dir2/b
/mnt/dir1/.snaps/snap1/a
/mnt/dir2/.snaps/snap1/b
Change-Id: Ifda793455610e554f3f1e4cbb90d44c02cda4b0f
BUG: 1171703
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/9255
Smoke: Gluster Build System <jenkins@build.gluster.com>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
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The svs_glfs_readdir() is a generic function which is called from
svs_readdir() and svs_readdirp(). But in svs_readdir 'buf' variable
is passed as NULL, then glfs_read_readdir() will fail. This patch
will fix the same.
Change-Id: Id02e4e17e30c85de117db5ddd9f97b578622dff9
BUG: 1260611
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Reviewed-on: http://review.gluster.org/12117
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Previously glfs_h_lookupat won't follow the symlink, this patch
introduces new flag `follow` which will resolve the same. Applications
linking against the new library will need to use the new glfs_h_lookupat
API call.
In order to stay compatible with existing binaries that use the previous
glfs_h_lookupat() function, the old symbol needs to stay available.
Verification that there are two versions of glfs_h_lookupat:
$ objdump -T /usr/lib64/libgfapi.so.0 | grep -w glfs_h_lookupat
0000000000015070 g DF .text 000000000000021e GFAPI_3.7.4 glfs_h_lookupat
0000000000015290 g DF .text 0000000000000008 (GFAPI_3.4.2) glfs_h_lookupat
Testing with a binary (based on anonymous_fd_read_write.c from ./tests/)
that was linked against the old library:
$ objdump -T ./lookupat | grep -w glfs_h_lookupat
0000000000000000 DF *UND* 0000000000000000 GFAPI_3.4.2 glfs_h_lookupat
Enable debugging for 'ld.so' so that we can check that the GFAPI_3.4.2
version of the symbol gets loaded:
$ export LD_DEBUG_OUTPUT=lookupat.ld.log LD_DEBUG=all
$ ./lookupat
$ grep -w glfs_h_lookupat lookupat.ld.log.2543
2543: symbol=glfs_h_lookupat; lookup in file=./lookupat [0]
2543: symbol=glfs_h_lookupat; lookup in file=/lib64/libgfapi.so.0 [0]
2543: binding file ./lookupat [0] to /lib64/libgfapi.so.0 [0]: normal symbol `glfs_h_lookupat' [GFAPI_3.4.2]
Change-Id: I8bf9b1c19a0585f681bc1a7f84aad1ccd0f75f6a
BUG: 1252410
Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com>
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/11883
Reviewed-by: soumya k <skoduri@redhat.com>
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
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Instead of including config.h in each file, and have the additional
config.h included from the compiler commandline (-include option).
When a .c file tests for a certain #define, and config.h was not
included, incorrect assumtions were made. With this change, it can not
happen again.
BUG: 1222319
Change-Id: I4f9097b8740b81ecfe8b218d52ca50361f74cb64
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Reviewed-on: http://review.gluster.org/10808
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System
Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
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snapview-client and snapview-server doesnot have statfs
fop implemented
Change-Id: I2cdd4c5784414b0549a01af9a28dbc723b7cdc67
BUG: 1176837
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: http://review.gluster.org/10358
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Avra Sengupta <asengupt@redhat.com>
Tested-by: NetBSD Build System
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Coverity CIDs:
1228601
1220056
1238185
1257624
Change-Id: Idb4cc3b44bc3ccb8b497ce355e1e3bacfb176db9
BUG: 789278
Signed-off-by: Nandaja Varma <nandaja.varma@gmail.com>
Reviewed-on: http://review.gluster.org/9615
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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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>
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* snapview-server in readdirp, creates the inode for entries with names "." and
".." for each readdirp operation without creating dentries leading to memleak.
It should have avoided creation of inodes for those entries
Change-Id: I3b2025fd10872fcc3303d0becec764ffd4e37601
BUG: 1179663
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/9404
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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not available
Change-Id: I990487003b712bf4aed8f54291417965f301655e
BUG: 1172430
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/9265
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Sachin Pandit <spandit@redhat.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>
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* For samba export, the entry point is also added to the readdir response.
Change-Id: I825c017e0f16db1f1890bb56e086f36e6558a1c2
BUG: 1168875
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/9218
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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When a lookup sent to snapview-server for entry-point directory
protocol server first tries to resolve gfid of a parent directory.
looking up the parent gfid from a latest snapshot can fail if the
volume is a restored volume. As this gfid is already looked-up by
snapview-client, we can return success for the parent gfid.
Change-Id: Ic9b20561ef79b93032f07c3a81eae54a94e1747b
BUG: 1162498
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/9229
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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CIFS sends getxattr call while accessing .snaps directory.
snapview server should return ENODATA if getxattr is called
on .snaps folder. Also flush on .snaps folder should be handled.
Windows client sends and getxattr call on the parent folder
of .snaps with a special key to get the real filename of a file.
This is used by samba to do case insensitive check of files.
Fixed few FreeBSD compilation error.
bug: 1168875
Change-Id: I74d5cb4419568c8ed8709ba6d1ddff0e41392204
Signed-off-by: Rajesh Joseph <rjoseph@redhat.com>
Reviewed-on: http://review.gluster.org/9211
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Problem : when an user tries to access a file/folder for which
he does not have a proper permission required then fuse gives out
a proper error "Permission denied", but nfs does not give out that
error, rather he can access the file/folder. The reason being uid and
gid of call frame stack takes a default value of uid and gid which
point to root permission.
Solution : Set a proper uid and gid during a access call from nfs
Change-Id: Ib060706fde66ec7e60f242fab1f3e59122ed2245
BUG: 1167580
Signed-off-by: Sachin Pandit <spandit@redhat.com>
Reviewed-on: http://review.gluster.org/9194
Reviewed-by: Vijaikumar Mallikarjuna <vmallika@redhat.com>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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When NFS server is restarted inode-context is lost.
Nameless lookup will be sent to regular volume.
If the gfid is from virtual graph, lookup will fail
with ESTALE. We need to send a lookup to snapview server
Change-Id: I22920614f0d14cb90b53653fce95b6b70023eba6
BUG: 1166197
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/9153
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Sachin Pandit <spandit@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Handle readlink fops in case of symlinks on
snap view server
BUG: 1162462
Change-Id: Ia08e9e9c1c61e06132732aa580c5a9fd5e7c449b
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/9102
Reviewed-by: Vijaikumar Mallikarjuna <vmallika@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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EROFS
When an attempt is made to create file/directories inside .snaps, it
fails with wrong error message as "Stale file handle". It should fail
with "Read-only file system"
Change-Id: I3a812a0afc4762cbb71ab180b9394c866e576a66
BUG: 1159840
Signed-off-by: vmallika <vmallika@redhat.com>
Reviewed-on: http://review.gluster.org/9039
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: Id5f9d5a23eb5932a0a53520b08ffba258952e000
BUG: 1151004
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/8999
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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correct before doing any fop
The following operations might lead to problems:
* Create a file on the glusterfs mount point
* Create a snapshot (say "snap1")
* Access the contents of the snapshot
* Delete the file from the mount point
* Delete the snapshot "snap1"
* Create a new snapshot "snap1"
Now accessing the new snapshot "snap1" gives problems. Because the inode and
dentry created for snap1 would not be deleted upon the deletion of the snapshot
(as deletion of snapshot is a gluster cli operation, not a fop). So next time
upon creation of a new snap with same name, the previous inode and dentry itself
will be used. But the inode context contains old information about the glfs_t
instance and the handle in the gfapi world. Directly accessing them without
proper check leads to ENOTCONN errors. Thus the glfs_t instance should be
checked before accessing. If its wrong, then right instance should be obtained
by doing the lookup.
Change-Id: Idca0c8015ff632447cea206a4807d8ef968424fa
BUG: 1151004
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/8917
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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* Now that NFS server does inode linking in readdirp, it can resolve the
gfid (i.e. find the right inode from its inode table) present in the
filehandle sent by the NFS client on which a fop came. So instead of
sending the lookup on that entry, it directly sends the fop. But
snapview-server does not get the handle for the entries in readdirp
(because doing a lookup on each entry via gfapi would be costly. So it
waits till a lookup is done on that inode, to get the handle and the
fs instance and fill it in the inode context). So when NFS resoves the
gfid and directly sends the fop, snapview-server will not be able to
perform the fop as the inode contet would not contain the fs instance
and the handle. So fops should check for the handle before doing gfapi
calls. If the handle and fs instance are not present in the inode context
they should get them by doing an explicit lookup on the entry.
Change-Id: Idd648fbcc3ff6aadc3b63ff236561ca967b92f5d
BUG: 1115949
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/8324
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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* As of now snapview-server is polling (sending rpc requests to glusterd) to
get the latest list of snapshots at some regular time intervals
(non configurable). Instead of that register a callback with glusterd so that
glusterd sends notifications to snapd whenever a snapshot is created/deleted
and snapview-server can configure itself.
Change-Id: I17a274fd2ab487d030678f0077feb2b0f35e5896
BUG: 1119628
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/8150
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: Iba35e4397646a67384e878fbe7bdfb7586fc07f9
BUG: 1130888
Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-on: http://review.gluster.org/8569
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Change-Id: I29aeb32a972ed6d19e779b9e79fce9a489848497
BUG: 1089172
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/8436
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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* There was no handle based API for listxattr. With this change, glfs_h_getxattrs
also handles the listxattr functionality by checking whether the name is NULL
or not (like posix). But all the gfapi functions for listxattr
(glfs_h_getxattrs AND glfs_listxattr AND glfs_flistxattr) returns the names of
the xattrs in a buffer provided by the caller. But snapview-server has to
return the list of xattrs in a dict itself (similar to posix xlator). But
the buffer just contains the names of the xattrs. So for each xattr, a zero
byte value is set (i.e. "") into the dict and sent back. Translators which
do xattr caching (as of now md-cache which caches selinux and acl related
xattrs) should not cache those xattrs whose value is a zero byte data ("").
So made changes in md-cache to ignore zero byte values.
* NFS server was not linking the inodes to inode table in readdirp. This was
leading to applications getting errors. The below set of operations would
lead to applications getting error
1) ls -l in one of the snaopshots (snapview-server would generate gfids for
each entry on the fly and link the inodes associated with those entries)
2) NFS server upon getting readdirp reply would not link the inodes of the
entries. But it used to generate filehandles for each entry and associate
the gfid of that entry with the filehandle and send it as part of the
reply to nfs client.
3) NFS client would send the filehandle of one of those entries when some
activity is done on it.
4) NFS server would not be able to find the inode for the gfid present in the
filehandle (as the inode was not linked) and would go for hard resolution
by sending a lookup on the gfid by creating a new inode.
5) snapview-client will not able to identify whether the inode is a real inode
existing in the main volume or a virtual inode existing in the snapshots
as there would not be any inode context.
6) Since the gfid upon which lookup is sent is a virtual gfid which is not
present in the disk, lookup would fail and the application would get an
error.
To handle above situation, now nfs server also does inode linking in readdirp.
Change-Id: Ibb191408347b6b5f21cff72319ccee619ea77bcd
BUG: 1115949
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-on: http://review.gluster.org/8230
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Niels de Vos <ndevos@redhat.com>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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- svs_inode_new()/svs_fd_new() should only need "no" arguments as
presented
- define variables only with usability :-)
Change-Id: I10a8d189a088701b29f26b6e4913560e32d16e75
BUG: 1089172
Signed-off-by: Harshavardhana <harsha@harshavardhana.net>
Reviewed-on: http://review.gluster.org/7998
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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checking pthread_mutex_lock return values
* Also some coverity fixes
Signed-off-by: Anand Subramanian <anands@redhat.com>
Change-Id: I0c27b913e62b0a072e508e37a3fb3421a9ca9503
BUG: 1105439
Signed-off-by: Anand Subramanian <anands@redhat.com>
Reviewed-on: http://review.gluster.org/8071
Reviewed-by: Raghavendra Bhat <raghavendra@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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refresh snaplist
BUG: 1105439
Change-Id: I4bb312a53d88f6f4955e69a3ef2b4955ec17f26d
Signed-off-by: Anand Subramanian <anands@redhat.com>
Reviewed-on: http://review.gluster.org/8001
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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