diff options
author | Venky Shankar <vshankar@redhat.com> | 2015-04-24 10:10:35 +0530 |
---|---|---|
committer | Niels de Vos <ndevos@redhat.com> | 2015-05-10 05:27:40 -0700 |
commit | 1a217b2a0295ca4d9068ee5c17d6a4374cc5f8fc (patch) | |
tree | 7b3a92dd4e18fa5b01160630322ad1ae175abb2d /libglusterfs/src/glusterfs.h | |
parent | 25bb1061642bcaedfdfcab859a07244c2276571f (diff) |
core: Global timer-wheel
Instantiate a process wide global instance of the timer wheel
data structure. Spawning glusterfs* process with option arg
"--global-timer-wheel" instantiates a global instance of
timer-wheel under global context (->ctx).
Translators can make use of this process wide instance [via a
call to glusterfs_global_timer_wheel()] instead of maintaining
an instance of their own and possibly consuming more memory.
Linux kernel too has a single instance of timer wheel where
subsystems such as IO, networking, etc.. make use of.
Bitrot daemon would be early consumers of this: bitrot translator
instances for multiple volumes would track objects belonging to
their respective bricks in this global expiry tracking data
structure. This is also a first step to move GlusterFS timer
mechanism to use timer-wheel.
> Change-Id: Ie882df607e07acaced846ea269ebf1ece306d6ae
> BUG: 1170075
> Signed-off-by: Venky Shankar <vshankar@redhat.com>
> Reviewed-on: http://review.gluster.org/10380
> Tested-by: NetBSD Build System
> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
> Tested-by: Gluster Build System <jenkins@build.gluster.com>
Change-Id: I35c840daa9996a059699f8ea5af54c76ede7e09c
Signed-off-by: Venky Shankar <vshankar@redhat.com>
Signed-off-by: Gaurav Kumar Garg <ggarg@redhat.com>
BUG: 1220041
Reviewed-on: http://review.gluster.org/10716
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Diffstat (limited to 'libglusterfs/src/glusterfs.h')
-rw-r--r-- | libglusterfs/src/glusterfs.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h index 3843bb76ed9..228d3203d7a 100644 --- a/libglusterfs/src/glusterfs.h +++ b/libglusterfs/src/glusterfs.h @@ -437,6 +437,10 @@ struct _cmd_args { int gid_timeout; char gid_timeout_set; int aux_gfid_mount; + + /* need a process wide timer-wheel? */ + int global_timer_wheel; + struct list_head xlator_options; /* list of xlator_option_t */ /* fuse options */ @@ -499,6 +503,8 @@ typedef enum { MGMT_SSL_ALWAYS } mgmt_ssl_t; +struct tvec_base; + struct _glusterfs_ctx { cmd_args_t cmd_args; char *process_uuid; @@ -573,6 +579,8 @@ struct _glusterfs_ctx { pthread_cond_t notify_cond; int notifying; + struct tvec_base *timer_wheel; /* global timer-wheel instance */ + }; typedef struct _glusterfs_ctx glusterfs_ctx_t; |