glusterfs.git/xlators/features/leases/src/leases.c, branch v3.11.3

core: make the per glusterfs_ctx_t timer-wheel refcounted

2017-05-12T13:32:32+00:00

xlators can use a 'global' timer-wheel for scheduling events. This
timer-wheel is managed per glusterfs_ctx_t, but does not need to be
allocated for every graph. When an xlator wants to use the timer-wheel,
it will be instanciated on demand, and provided to xlators that request
it later on.

By adding a reference counter to the glusterfs_ctx_t for the
timer-wheel, the threads and structures can be cleaned up when the last
xlator does not have a need for it anymore. In general, the xlators
request the timer-wheel in init(), and they should return it in fini().

Because the timer-wheel is managed per glusterfs_ctx_t, the functions
can be added to ctx.c and do not need to live in their very minimal
tw.[ch] files.


>Reported-by: Poornima G 
>Signed-off-by: Niels de Vos 
>Reviewed-on: https://review.gluster.org/17068
>NetBSD-regression: NetBSD Build System 
>CentOS-regression: Gluster Build System 
>Smoke: Gluster Build System 
>Reviewed-by: Amar Tumballi 
>Reviewed-by: Zhou Zhengping 
>Reviewed-by: Kaleb KEITHLEY 
>(cherry picked from commit 73fcf3a874b2049da31d01b8363d1ac85c9488c2)

Change-Id: I19d225b39aaa272d9005ba7adc3104c3764f1572
BUG: 1450267
Reviewed-on: https://review.gluster.org/17262
Tested-by: Poornima G 
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Niels de Vos

leases: Fix the recall code path

2016-06-01T07:33:08+00:00

1. Replace frame->op usage with frame->root->op, as frame->op
   is not filled with appropriate value in all cases
2. Add few log messages
3. Fix boolean assignment

Change-Id: I340f2200c1fcc4f4ce5a139b0fd22508cb8ac1e3
BUG: 1319992
Signed-off-by: Poornima G 
Reviewed-on: http://review.gluster.org/14434
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Raghavendra Talur 
CentOS-regression: Gluster Build System 
Reviewed-by: Pranith Kumar Karampuri

leases: Do not init the threads when lease is disabled

2016-05-19T14:39:40+00:00

Change-Id: I08c4caf94bf3dfceba6f7d3cc8945c61d9b12dbc
BUG: 1319992
Signed-off-by: Poornima G 
Reviewed-on: http://review.gluster.org/14360
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Jeff Darcy

leases: Fix the notify being lost

2016-05-16T05:18:42+00:00

The notify() implemented doesn't really add any value
and the EXIT_IF_LEASES_OFF in notify() can cause the
notifications to be lost if leases if off.

Hence remove the notify definition from leases,
also fix a log level

Change-Id: I8bf30d26f08034a16a450ed811dcf8ac57d70a94
BUG: 1319992
Signed-off-by: Poornima G 
Reviewed-on: http://review.gluster.org/14275
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Raghavendra Talur 
CentOS-regression: Gluster Build System 
Reviewed-by: Raghavendra G

Leases: Add a server side xlator to handle lease requests

2016-04-30T05:39:06+00:00

Before this patch, there was an effort to implement leases
in upcall xlator, these patches by Soumya and me can be
found @ http://review.gluster.org/#/c/10084/

Change-Id: I926728c7ec690727a8971039b240655882d02059
BUG: 1319992
Signed-off-by: Poornima G 
Reviewed-on: http://review.gluster.org/11643
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Raghavendra Talur 
Reviewed-by: Rajesh Joseph 
Reviewed-by: Pranith Kumar Karampuri