<feed xmlns='http://www.w3.org/2005/Atom'>
<title>glusterfs.git/xlators/nfs/server, branch release-6</title>
<subtitle></subtitle>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/'/>
<entry>
<title>event: rename event_XXX with gf_ prefixed</title>
<updated>2019-08-28T08:34:45+00:00</updated>
<author>
<name>Xiubo Li</name>
<email>xiubli@redhat.com</email>
</author>
<published>2019-07-26T04:34:52+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=f7d1fa51cf7308a6d68ed9fa1e8cc4a7c66ad121'/>
<id>f7d1fa51cf7308a6d68ed9fa1e8cc4a7c66ad121</id>
<content type='text'>
I hit one crash issue when using the libgfapi.

In the libgfapi it will call glfs_poller() --&gt; event_dispatch()
in file api/src/glfs.c:721, and the event_dispatch() is defined
by libgluster locally, the problem is the name of event_dispatch()
is the extremly the same with the one from libevent package form
the OS.

For example, if a executable program Foo, which will also use and
link the libevent and the libgfapi at the same time, I can hit the
crash, like:

kernel: glfs_glfspoll[68486]: segfault at 1c0 ip 00007fef006fd2b8 sp
00007feeeaffce30 error 4 in libevent-2.0.so.5.1.9[7fef006ed000+46000]

The link for Foo is:
lib_foo_LADD = -levent $(GFAPI_LIBS)
It will crash.

This is because the glfs_poller() is calling the event_dispatch() from
the libevent, not the libglsuter.

The gfapi link info :
GFAPI_LIBS = -lacl -lgfapi -lglusterfs -lgfrpc -lgfxdr -luuid

If I link Foo like:
lib_foo_LADD = $(GFAPI_LIBS) -levent
It will works well without any problem.

And if Foo call one private lib, such as handler_glfs.so, and the
handler_glfs.so will link the GFAPI_LIBS directly, while the Foo won't
and it will dlopen(handler_glfs.so), then the crash will be hit everytime.

The link info will be:
foo_LADD = -levent
libhandler_glfs_LIBADD = $(GFAPI_LIBS)

I can avoid the crash temporarily by linking the GFAPI_LIBS in Foo too like:
foo_LADD = $(GFAPI_LIBS) -levent
libhandler_glfs_LIBADD = $(GFAPI_LIBS)

But this is ugly since the Foo won't use any APIs from the GFAPI_LIBS.

And in some cases when the --as-needed link option is added(on many dists
it is added as default), then the crash is back again, the above workaround
won't work.

Backport of:
&gt; https://review.gluster.org/#/c/glusterfs/+/23110/
&gt; Change-Id: I38f0200b941bd1cff4bf3066fca2fc1f9a5263aa
&gt; Fixes: #699
&gt; Signed-off-by: Xiubo Li &lt;xiubli@redhat.com&gt;

Change-Id: I38f0200b941bd1cff4bf3066fca2fc1f9a5263aa
updates: bz#1740525
Signed-off-by: Xiubo Li &lt;xiubli@redhat.com&gt;
(cherry picked from commit 799edc73c3d4f694c365c6a7c27c9ab8eed5f260)
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
I hit one crash issue when using the libgfapi.

In the libgfapi it will call glfs_poller() --&gt; event_dispatch()
in file api/src/glfs.c:721, and the event_dispatch() is defined
by libgluster locally, the problem is the name of event_dispatch()
is the extremly the same with the one from libevent package form
the OS.

For example, if a executable program Foo, which will also use and
link the libevent and the libgfapi at the same time, I can hit the
crash, like:

kernel: glfs_glfspoll[68486]: segfault at 1c0 ip 00007fef006fd2b8 sp
00007feeeaffce30 error 4 in libevent-2.0.so.5.1.9[7fef006ed000+46000]

The link for Foo is:
lib_foo_LADD = -levent $(GFAPI_LIBS)
It will crash.

This is because the glfs_poller() is calling the event_dispatch() from
the libevent, not the libglsuter.

The gfapi link info :
GFAPI_LIBS = -lacl -lgfapi -lglusterfs -lgfrpc -lgfxdr -luuid

If I link Foo like:
lib_foo_LADD = $(GFAPI_LIBS) -levent
It will works well without any problem.

And if Foo call one private lib, such as handler_glfs.so, and the
handler_glfs.so will link the GFAPI_LIBS directly, while the Foo won't
and it will dlopen(handler_glfs.so), then the crash will be hit everytime.

The link info will be:
foo_LADD = -levent
libhandler_glfs_LIBADD = $(GFAPI_LIBS)

I can avoid the crash temporarily by linking the GFAPI_LIBS in Foo too like:
foo_LADD = $(GFAPI_LIBS) -levent
libhandler_glfs_LIBADD = $(GFAPI_LIBS)

But this is ugly since the Foo won't use any APIs from the GFAPI_LIBS.

And in some cases when the --as-needed link option is added(on many dists
it is added as default), then the crash is back again, the above workaround
won't work.

Backport of:
&gt; https://review.gluster.org/#/c/glusterfs/+/23110/
&gt; Change-Id: I38f0200b941bd1cff4bf3066fca2fc1f9a5263aa
&gt; Fixes: #699
&gt; Signed-off-by: Xiubo Li &lt;xiubli@redhat.com&gt;

Change-Id: I38f0200b941bd1cff4bf3066fca2fc1f9a5263aa
updates: bz#1740525
Signed-off-by: Xiubo Li &lt;xiubli@redhat.com&gt;
(cherry picked from commit 799edc73c3d4f694c365c6a7c27c9ab8eed5f260)
</pre>
</div>
</content>
</entry>
<entry>
<title>core: avoid dynamic TLS allocation when possible</title>
<updated>2019-07-03T06:25:48+00:00</updated>
<author>
<name>Xavi Hernandez</name>
<email>xhernandez@redhat.com</email>
</author>
<published>2019-03-05T17:58:20+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=6697af343dfbe135735a035cbf592b94750bd589'/>
<id>6697af343dfbe135735a035cbf592b94750bd589</id>
<content type='text'>
Some interdependencies between logging and memory management functions
make it impossible to use the logging framework before initializing
memory subsystem because they both depend on Thread Local Storage
allocated through pthread_key_create() during initialization.

This causes a crash when we try to log something very early in the
initialization phase.

To prevent this, several dynamically allocated TLS structures have
been replaced by static TLS reserved at compile time using '__thread'
keyword. This also reduces the number of error sources, making
initialization simpler.

Backport of:
&gt; BUG: 1193929
&gt; Change-Id: I8ea2e072411e30790d50084b6b7e909c7bb01d50
&gt; Signed-off-by: Xavi Hernandez &lt;xhernandez@redhat.com&gt;

Updates: bz#1724210
Change-Id: I8ea2e072411e30790d50084b6b7e909c7bb01d50
Signed-off-by: Xavi Hernandez &lt;xhernandez@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Some interdependencies between logging and memory management functions
make it impossible to use the logging framework before initializing
memory subsystem because they both depend on Thread Local Storage
allocated through pthread_key_create() during initialization.

This causes a crash when we try to log something very early in the
initialization phase.

To prevent this, several dynamically allocated TLS structures have
been replaced by static TLS reserved at compile time using '__thread'
keyword. This also reduces the number of error sources, making
initialization simpler.

Backport of:
&gt; BUG: 1193929
&gt; Change-Id: I8ea2e072411e30790d50084b6b7e909c7bb01d50
&gt; Signed-off-by: Xavi Hernandez &lt;xhernandez@redhat.com&gt;

Updates: bz#1724210
Change-Id: I8ea2e072411e30790d50084b6b7e909c7bb01d50
Signed-off-by: Xavi Hernandez &lt;xhernandez@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>fix 32-bit-build-smoke warnings</title>
<updated>2019-01-11T18:25:18+00:00</updated>
<author>
<name>Iraj Jamali</name>
<email>ijamali@redhat.com</email>
</author>
<published>2018-12-17T05:53:59+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=01779e6c6c2c876a9e137d51ee1ce6a8062ea893'/>
<id>01779e6c6c2c876a9e137d51ee1ce6a8062ea893</id>
<content type='text'>
fixes: bz#1622665

Change-Id: I777d67b1b62c284c62a02277238ad7538eef001e
Signed-off-by: Iraj Jamali &lt;ijamali@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
fixes: bz#1622665

Change-Id: I777d67b1b62c284c62a02277238ad7538eef001e
Signed-off-by: Iraj Jamali &lt;ijamali@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>xlator: make 'xlator_api' mandatory</title>
<updated>2018-12-13T09:11:50+00:00</updated>
<author>
<name>Amar Tumballi</name>
<email>amarts@redhat.com</email>
</author>
<published>2018-12-06T10:54:52+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=af7e957b4954bd84b8f7df6bfbd59c939092ead2'/>
<id>af7e957b4954bd84b8f7df6bfbd59c939092ead2</id>
<content type='text'>
* 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 &lt;amarts@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
* 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 &lt;amarts@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>nfs: memory leak issue reported by asan</title>
<updated>2018-12-11T06:35:27+00:00</updated>
<author>
<name>Harpreet Kaur</name>
<email>hlalwani@redhat.com</email>
</author>
<published>2018-12-10T10:44:54+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=f50251daeece85d6ada79b1d1f6697d4fac59ad4'/>
<id>f50251daeece85d6ada79b1d1f6697d4fac59ad4</id>
<content type='text'>
This patch fixes Direct leaks in exports.c
Leaks are happening in exp_file_parse
SUMMARY: AddressSanitizer: 5120 byte(s) leaked in 20 allocation(s).
SUMMARY: AddressSanitizer: 512 byte(s) leaked in 4 allocation(s).

Updates: bz#1633930

Change-Id: Ib4474f8f6c65d737ed54ed35b4234410d1fd673e
Signed-off-by: Harpreet Kaur &lt;hlalwani@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch fixes Direct leaks in exports.c
Leaks are happening in exp_file_parse
SUMMARY: AddressSanitizer: 5120 byte(s) leaked in 20 allocation(s).
SUMMARY: AddressSanitizer: 512 byte(s) leaked in 4 allocation(s).

Updates: bz#1633930

Change-Id: Ib4474f8f6c65d737ed54ed35b4234410d1fd673e
Signed-off-by: Harpreet Kaur &lt;hlalwani@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>libglusterfs: Move devel headers under glusterfs directory</title>
<updated>2018-12-05T21:47:04+00:00</updated>
<author>
<name>ShyamsundarR</name>
<email>srangana@redhat.com</email>
</author>
<published>2018-11-29T19:08:06+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=20ef211cfa5b5fcc437484a879fdc5d4c66bbaf5'/>
<id>20ef211cfa5b5fcc437484a879fdc5d4c66bbaf5</id>
<content type='text'>
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 &lt;&gt; 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 &lt;srangana@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
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 &lt;&gt; 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 &lt;srangana@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>rpc: bump up server.event-threads</title>
<updated>2018-12-04T06:38:55+00:00</updated>
<author>
<name>Milind Changire</name>
<email>mchangir@redhat.com</email>
</author>
<published>2018-11-27T06:13:04+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=748e993d1f30197c533933ddae889b317ccd00d3'/>
<id>748e993d1f30197c533933ddae889b317ccd00d3</id>
<content type='text'>
Problem:
A single event-thread causes performance issues in the system.

Solution:
Bump up event-threads to 2 to make the system more performant.
This helps in making the system more responsive and helps avoid the
ping-timer-expiry problem as well. However, setting the event-threads
to 2 is not the only thing required to avoid ping-timer-expiry issues.

Change-Id: Idb0fd49e078db3bd5085dd083b0cdc77b59ddb00
fixes: bz#1653277
Signed-off-by: Milind Changire &lt;mchangir@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Problem:
A single event-thread causes performance issues in the system.

Solution:
Bump up event-threads to 2 to make the system more performant.
This helps in making the system more responsive and helps avoid the
ping-timer-expiry problem as well. However, setting the event-threads
to 2 is not the only thing required to avoid ping-timer-expiry issues.

Change-Id: Idb0fd49e078db3bd5085dd083b0cdc77b59ddb00
fixes: bz#1653277
Signed-off-by: Milind Changire &lt;mchangir@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>nfs : set ctx for every inode looked up nfs3_fh_resolve_inode_lookup_cbk()</title>
<updated>2018-12-03T05:50:06+00:00</updated>
<author>
<name>Jiffin Tony Thottan</name>
<email>jthottan@redhat.com</email>
</author>
<published>2018-11-29T13:52:40+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=99c72652f81ca5ea212adbb5a555e12a4de94491'/>
<id>99c72652f81ca5ea212adbb5a555e12a4de94491</id>
<content type='text'>
The inode ctx for nfs xlator is set with help nfs_fix_generation.
But currently gnfs is crashing because inode_ctx is becoming null
nfs3_resolve_inode_hard() is used to perform a lookup on entire
path and looks like function is missing to set the ctx for inode.
This patch will set ctx for the inode which it looked on.

Change-Id: I464fa7f78df1bae990ebe97de8ccf6d5fb74fc9f
fixes: bz#1651439
Signed-off-by: Jiffin Tony Thottan &lt;jthottan@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The inode ctx for nfs xlator is set with help nfs_fix_generation.
But currently gnfs is crashing because inode_ctx is becoming null
nfs3_resolve_inode_hard() is used to perform a lookup on entire
path and looks like function is missing to set the ctx for inode.
This patch will set ctx for the inode which it looked on.

Change-Id: I464fa7f78df1bae990ebe97de8ccf6d5fb74fc9f
fixes: bz#1651439
Signed-off-by: Jiffin Tony Thottan &lt;jthottan@redhat.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Multiple xlator .h files: remove unused private gf_* memory types.</title>
<updated>2018-11-30T11:51:18+00:00</updated>
<author>
<name>Yaniv Kaul</name>
<email>ykaul@redhat.com</email>
</author>
<published>2018-11-29T20:27:59+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=98a672f5046620f5fc751ea803e0dfa0bf4e18d3'/>
<id>98a672f5046620f5fc751ea803e0dfa0bf4e18d3</id>
<content type='text'>
It seems there were quite a few unused enums (that in turn
cause unndeeded memory allocation) in some xlators.
I've removed them, hopefully not causing any damage.

Compile-tested only!

updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;

Change-Id: I8252bd763dc1506e2d922496d896cd2fc0886ea7
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
It seems there were quite a few unused enums (that in turn
cause unndeeded memory allocation) in some xlators.
I've removed them, hopefully not causing any damage.

Compile-tested only!

updates: bz#1193929
Signed-off-by: Yaniv Kaul &lt;ykaul@redhat.com&gt;

Change-Id: I8252bd763dc1506e2d922496d896cd2fc0886ea7
</pre>
</div>
</content>
</entry>
<entry>
<title>nfs : fix coverity issue in nfs3.c</title>
<updated>2018-10-16T16:29:27+00:00</updated>
<author>
<name>Sunny Kumar</name>
<email>sunkumar@redhat.com</email>
</author>
<published>2018-10-16T11:15:34+00:00</published>
<link rel='alternate' type='text/html' href='http://dev.gluster.org/cgit/glusterfs.git/commit/?id=573253d250972dad60ec28cd101f9facd82a0fe2'/>
<id>573253d250972dad60ec28cd101f9facd82a0fe2</id>
<content type='text'>
This patch fixes CID 1274073.

updates: bz#789278

Change-Id: I34146bfdfe19bae4592062e710a89ab07b2c5c07
Signed-off-by: Sunny Kumar &lt;sunkumar@redhat.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This patch fixes CID 1274073.

updates: bz#789278

Change-Id: I34146bfdfe19bae4592062e710a89ab07b2c5c07
Signed-off-by: Sunny Kumar &lt;sunkumar@redhat.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
