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* libglusterfs: Move devel headers under glusterfs directoryShyamsundarR2018-12-051-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | 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>
* fuse: interrupt handling frameworkCsaba Henk2018-11-061-0/+2
| | | | | | | | | | | | | | | | | | | | - add sub-framework to send timed responses to kernel - add interrupt handler queue - implement INTERRUPT fuse_interrupt looks up handlers for interrupted messages in the queue. If found, it invokes the handler function. Else responds with EAGAIN with a delay. See spec at https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/filesystems/fuse.txt?h=v4.17#n148 and explanation in comments. Change-Id: I1a79d3679b31f36e14b4ac8f60b7f2c1ea2badfb updates: #465 Signed-off-by: Csaba Henk <csaba@redhat.com>
* Land clang-format changesGluster Ant2018-09-121-12/+11
| | | | Change-Id: I6f5d8140a06f3c1b2d196849299f8d483028d33b
* mount/fuse: Add support for multi-threaded fuse readersKrutika Dhananjay2018-04-021-0/+1
| | | | | | | | | | | | | | Usage: Use 'reader-thread-count=<NUM>' as command line option to set the thread count at the time of mounting the volume. Next task is to make these threads auto-scale based on the load, instead of having the user remount the volume everytime to change the thread count. Updates #412 Change-Id: I94aa1505e5ae6a133683d473e0e4e0edd139b76b Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com>
* mount/fuse: use a queue instead of pipe to communicate with threadRaghavendra G2015-10-261-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | doing inode/entry invalidations. Writing to pipe can block if pipe is full. This can lead to deadlocks in some situations. Consider following situation: 1. Kernel sends a write on an inode. Client is waiting for a response to write from brick. 2. A lookup happens on behalf of different application/thread on the same inode. In response, mdc tries to invalidate the inode. 3. fuse_invalidate_inode is called. It writes a invalidation request to pipe. Another thread which reads from this pipe writes the request to /dev/fuse. The invalidate code in fuse-kernel-module, tries to acquire lock on all pages for the inode and is blocked as a write is in progress on same inode (step 1) 4. Now, poller thread is blocked in invalidate notification and cannot receive any messages from same socket (on which lookup response came). But client is expecting a response for write from same socket (again step1) and we've a deadlock. The deadlock can be solved in two ways: 1. Use a queue (and a conditional variable for notifications) to pass invalidation requests from poller to invalidate thread. This is a variant of using non-blocking pipe, but doesn't have any limit on the amount of data (worst case we run out of memory and error out). 2. Allow events from sockets, immediately after we read one rpc-msg. Currently we disallow events till that rpc-msg is read from socket, processed and handled by higher layers. That way we won't run into these kind of issues. Also, it'll increase parallelism in way of reading from sockets. This patch implements solution 1 above. Change-Id: I8e8199fd7f4da9eab46a719d9292f35c039967e1 BUG: 1273387 Signed-off-by: Raghavendra G <rgowdapp@redhat.com> Reviewed-on: http://review.gluster.org/12402
* All: License message changeVarun Shastry2012-09-131-7/+6
| | | | | | | | | | | | License message changed for server-side, dual license GPLV2 and LGPLv3+. Change-Id: Ia9e53061b9d2df3b3ef3bc9778dceff77db46a09 BUG: 852318 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/3940 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* All: License message changeVarun Shastry2012-08-281-15/+6
| | | | | | | | | | | | | | | | | | The license message is changed to Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com> This file is part of GlusterFS. This file is licensed to you under your choice of the GNU Lesser General Public License, version 3 or any later version (LGPLv3 or later), or the GNU General Public License, version 2 (GPLv2), in all cases as published by the Free Software Foundation. Change-Id: I07d2b63ed5fbbbd1884f1e74f2dd56013d15b0f4 BUG: 852318 Signed-off-by: Varun Shastry <vshastry@redhat.com> Reviewed-on: http://review.gluster.org/3858 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* libglusterfs,mount/fuse: implement gidcache mechanism in fuse-bridgeBrian Foster2012-07-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | This change genericizes the cache mechanism implemented in commit 8efd2845 into libglusterfs/src/gidcache.[ch] and adds fuse-bridge as a client. The cache mechanism is fundamentally equivalent, with some minor changes: - Change cache key from uid_t to uint64_t. - Modify the cache add logic to locate and use an entry with a matching ID, should it already exist. This addresses a bug in the existing mechanism where an expired entry supercedes a newly added entry in lookup, causing repeated adds and flushing of a cache bucket. The fuse group cache is disabled by default. It can be enabled via the 'gid-timeout' fuse-bridge translator option and accompanying mount option (i.e., '-o gid-timeout=1' for a 1s entry timeout). BUG: 800892 Change-Id: I0b34a2263ca48dbb154790a4a44fc70b733e9114 Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-on: http://review.gluster.com/3676 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Reviewed-by: Anand Avati <avati@redhat.com>
* fuse-bridge: Handle graph-switch.Raghavendra G2012-02-211-0/+1
| | | | | | | | | | | | | | | | | The purpose of this patch is to let protocol/client know when its transports can be disconnected, without application running on gluster mount noticing any effects of graph switch. In order to do this, we migrate all fds and blocked locks to new graph. Once this migration is complete and there are no in-transit frames as viewed by fuse-bridge, we send a PARENT_DOWN event to its children. protocol/client on receiving this event, can disconnect up its transports. Change-Id: Idcea4bc43e23fb077ac16538b61335ebad84ba16 BUG: 767862 Reviewed-on: http://review.gluster.com/2734 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
* mount/fuse: Inherit direct-io-mode values from fds alreadyRaghavendra G2011-12-011-0/+1
| | | | | | | | | | | | | | | | opened, for a new fd being opened. When an fd is being opened, it inherits direct-io-mode characterstics (either enabled or disabled) from the fds already opened on inode. If none are opened and user has not specified the mode through cmdline options, default mode is used. Change-Id: I0c9e959100e9130e46bbd16d63eca278260635b4 BUG: 801 Reviewed-on: http://review.gluster.com/55 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Csaba Henk <csaba@gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* Change Copyright current yearPranith Kumar K2011-08-101-1/+1
| | | | | | | | Change-Id: I2d10f2be44f518f496427f257988f1858e888084 BUG: 3348 Reviewed-on: http://review.gluster.com/200 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* LICENSE: s/GNU Affero General Public/GNU General Public/Pranith Kumar K2011-08-061-3/+3
| | | | | | | | Change-Id: I3914467611e573cccee0d22df93920cf1b2eb79f BUG: 3348 Reviewed-on: http://review.gluster.com/182 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@gluster.com>
* Copyright changesVijay Bellur2010-10-111-1/+1
| | | | | | | | Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 971 (dynamic volume management) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=971
* Change GNU GPL to GNU AGPLPranith K2010-10-041-3/+3
| | | | | | | | Signed-off-by: Pranith Kumar K <pranithk@gluster.com> Signed-off-by: Vijay Bellur <vijay@dev.gluster.com> BUG: 1388 () URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=1388
* Memory accounting changesVijay Bellur2010-04-231-0/+35
Memory accounting Changes. Thanks to Vinayak Hegde and Csaba Henk for their contributions. Signed-off-by: Vijay Bellur <vijay@gluster.com> Signed-off-by: Anand V. Avati <avati@dev.gluster.com> BUG: 329 (Replacing memory allocation functions with mem-type functions) URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=329
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