glusterfs.git/xlators/features/locks/src/common.h, branch v3.6.0beta2

locks: various fixes

2014-01-14T05:44:19+00:00

- implement ref/unref of entry locks (and fix bad pointer deref crashes)
- code cleanup and deleted various data types
- fix improper read/write lock conflict detection in entrylk
- fix indefinite hang of blocked locks on disconnect
- register locks in client_t synchronously, fix crashes in disconnect path

Change-Id: Id273690c9111b8052139d1847060d1fb5a711924
BUG: 849630
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/6638
Tested-by: Gluster Build System 
Reviewed-by: Kaleb KEITHLEY 
Reviewed-by: Vijay Bellur

client_t: phase 2, refactor server_ctx and locks_ctx out

2013-10-31T16:32:50+00:00

remove server_ctx and locks_ctx from client_ctx directly and store as
into discrete entities in the scratch_ctx

hooking up dump will be in phase 3

BUG: 849630
Change-Id: I94cea328326db236cdfdf306cb381e4d58f58d4c
Signed-off-by: Kaleb S. KEITHLEY 
Reviewed-on: http://review.gluster.org/5678
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

features/locks : Improves debuggability of inode/entry locks.

2013-09-03T13:50:40+00:00

Prints, in the statedump, the information about the mount that
performed the inode/entry lk.

For the entrylks that are granted after a blocked state, the
blocked time is not printed. A patch for that will be sent
later.

Change-Id: Ib0c1ed21fa9328b435f96b590dd343f59814a08d
BUG: 915629
Signed-off-by: Anuradha Talur 
Reviewed-on: http://review.gluster.org/5712
Reviewed-by: Pranith Kumar Karampuri 
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

locks: Added an xdata-based 'cmd' for inodelk count in a given domain

2013-07-18T08:38:16+00:00

Following is the semantics of the 'cmd':
1) If @domain is NULL - returns no. of locks blocked/granted in all domains
2) If @domain is non-NULL- returns no. of locks blocked/granted in that
domain
3) If @domain is non-existent - returns '0'; This is important since
locks xlator creates a domain in a lazy manner.

where @domain - a string representing the domain.

Change-Id: I5e609772343acc157ca650300618c1161efbe72d
BUG: 951195
Original-author: Krishnan Parthasarathi 
Signed-off-by: Krishnan Parthasarathi 
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/4889
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi

All: License message change

2012-09-13T20:19:37+00:00

License message changed for server-side, dual license GPLV2 and LGPLv3+.

Change-Id: Ia9e53061b9d2df3b3ef3bc9778dceff77db46a09
BUG: 852318
Signed-off-by: Varun Shastry 
Reviewed-on: http://review.gluster.org/3940
Tested-by: Gluster Build System 
Reviewed-by: Kaleb KEITHLEY 
Reviewed-by: Anand Avati

All: License message change

2012-08-28T10:45:06+00:00

The license message is changed to
  Copyright (c) 2008-2012 Red Hat, Inc. 
  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 
Reviewed-on: http://review.gluster.org/3858
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

features/locks: Fix statedump code

2012-07-29T20:40:19+00:00

RCA:
Taking blocking mutex/spin locks lead to dead locks
because of the locking order in statedumps. Also we
were asked to remove gf_logs if possible to avoid extra
cost in signal handlers.

Fix:
changed blocking mutes/spin locks to their non-blocking variants.
Removed gf_logs in locks xlator statedump code-path.

Tests:
State-dump success cases are working fine.
Triggered try-lock failures by putting statedumps in a while loop.
In parallel did chown of the same file in a while loop.

Change-Id: I81539a62f8216f267f57bb703ef132c85bfd557d
BUG: 843781
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.com/3747
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

features/locks: Find parent-entrylk presence in lookup

2012-04-19T05:20:47+00:00

Change-Id: I8fc85676827f26b07bf578ea1152d3e251adb4af
BUG: 765551
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.com/3177
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

features/locks: Make inodelk ref-counted

2012-03-10T10:24:30+00:00

Ref when the object is allocated.
Unref after the response is submitted to that inodelk.

Ref when the lock is granted.
Unref when the lock is unlocked.

Change-Id: I2bfe9182b67bea7dc7b9d0ed9f99f1c7fa0b8a3c
BUG: 783449
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.com/2891
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

locks: Made dump locks formatting more 'readable'.

2012-02-24T13:13:50+00:00

Also,
Added inode's path to dump locks.
Added basename to entrylk dump output.
Added whence field of range locks to dump output.

Change-Id: Ifd3f8b585a52de7ff68cd54506619ac3eaedeecc
BUG: 789858
Signed-off-by: Krishnan Parthasarathi 
Reviewed-on: http://review.gluster.com/798
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur