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| author | David Teigland <teigland@redhat.com> | 2011-04-05 13:16:24 -0500 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2011-07-15 12:30:43 -0500 |
| commit | 23e8e1aaacb10d9f05e44a93e10ea4ee5b3838a5 (patch) | |
| tree | 7c94bc4eeb9dfd85a26869003c56dc45fc6fd697 /fs/dlm/dlm_internal.h | |
| parent | 883ba74f43092823d0ed4c6b21f0171e9b334607 (diff) | |
| download | linux-23e8e1aaacb10d9f05e44a93e10ea4ee5b3838a5.tar.gz linux-23e8e1aaacb10d9f05e44a93e10ea4ee5b3838a5.tar.xz | |
dlm: use workqueue for callbacks
Instead of creating our own kthread (dlm_astd) to deliver
callbacks for all lockspaces, use a per-lockspace workqueue
to deliver the callbacks. This eliminates complications and
slowdowns from many lockspaces sharing the same thread.
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/dlm_internal.h')
| -rw-r--r-- | fs/dlm/dlm_internal.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index 6614f335e25d..fe2860c02449 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -246,13 +246,15 @@ struct dlm_lkb { struct list_head lkb_statequeue; /* rsb g/c/w list */ struct list_head lkb_rsb_lookup; /* waiting for rsb lookup */ struct list_head lkb_wait_reply; /* waiting for remote reply */ - struct list_head lkb_astqueue; /* need ast to be sent */ struct list_head lkb_ownqueue; /* list of locks for a process */ struct list_head lkb_time_list; ktime_t lkb_timestamp; ktime_t lkb_wait_time; unsigned long lkb_timeout_cs; + struct mutex lkb_cb_mutex; + struct work_struct lkb_cb_work; + struct list_head lkb_cb_list; /* for ls_cb_delay or proc->asts */ struct dlm_callback lkb_callbacks[DLM_CALLBACKS_SIZE]; struct dlm_callback lkb_last_cast; struct dlm_callback lkb_last_bast; @@ -504,8 +506,12 @@ struct dlm_ls { struct miscdevice ls_device; + struct workqueue_struct *ls_callback_wq; + /* recovery related */ + struct mutex ls_cb_mutex; + struct list_head ls_cb_delay; /* save for queue_work later */ struct timer_list ls_timer; struct task_struct *ls_recoverd_task; struct mutex ls_recoverd_active; @@ -542,6 +548,7 @@ struct dlm_ls { #define LSFL_RCOM_WAIT 4 #define LSFL_UEVENT_WAIT 5 #define LSFL_TIMEWARN 6 +#define LSFL_CB_DELAY 7 /* much of this is just saving user space pointers associated with the lock that we pass back to the user lib with an ast */ |