diff options
| author | Lars Ellenberg <lars.ellenberg@linbit.com> | 2012-01-24 17:19:42 +0100 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-11-08 16:58:36 +0100 |
| commit | a0d856dfaed16efb9600b2a7d147cb6dbc11ff94 (patch) | |
| tree | 48b11d912c045a0bf7ff2eed3cfd1abe62c9e31f /drivers/block/drbd/drbd_int.h | |
| parent | b406777e6496de346e8ee12fa64e1fe0adc02a78 (diff) | |
drbd: base completion and destruction of requests on ref counts
cherry-picked and adapted from drbd 9 devel branch
The logic for when to get or put a reference is in mod_rq_state().
To not get confused in the freeze/thaw respectively resend/restart
paths, or when cleaning up requests waiting for P_BARRIER_ACK, this
also introduces additional state flags:
RQ_COMPLETION_SUSP, and RQ_EXP_BARR_ACK.
Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Diffstat (limited to 'drivers/block/drbd/drbd_int.h')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 52ad1bfce85a..8b26a2c954de 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -575,13 +575,14 @@ struct drbd_request { struct list_head tl_requests; /* ring list in the transfer log */ struct bio *master_bio; /* master bio pointer */ - unsigned long rq_state; /* see comments above _req_mod() */ unsigned long start_time; /* once it hits 0, we may complete the master_bio */ atomic_t completion_ref; /* once it hits 0, we may destroy this drbd_request object */ struct kref kref; + + unsigned rq_state; /* see comments above _req_mod() */ }; struct drbd_epoch { |