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| author | Philipp Reisner <philipp.reisner@linbit.com> | 2011-07-05 17:38:59 +0400 |
|---|---|---|
| committer | Philipp Reisner <philipp.reisner@linbit.com> | 2012-11-08 19:57:50 +0400 |
| commit | cdfda633d235028e9b27381dedb65416409e8729 (patch) | |
| tree | c2b07a9b0f1bfb2bb04dd118df15a53ff2592ade /drivers/block/drbd/drbd_req.h | |
| parent | 2fcb8f307f6014de9e771799d9ec0f050802c0ac (diff) | |
| download | linux-cdfda633d235028e9b27381dedb65416409e8729.tar.xz | |
drbd: detach from frozen backing device
* drbd-8.3:
documentation: Documented detach's --force and disk's --disk-timeout
drbd: Implemented the disk-timeout option
drbd: Force flag for the detach operation
drbd: Allow new IOs while the local disk in in FAILED state
drbd: Bitmap IO functions can not return prematurely if the disk breaks
drbd: Added a kref to bm_aio_ctx
drbd: Hold a reference to ldev while doing meta-data IO
drbd: Keep a reference to the bio until the completion handler finished
drbd: Implemented wait_until_done_or_disk_failure()
drbd: Replaced md_io_mutex by an atomic: md_io_in_use
drbd: moved md_io into mdev
drbd: Immediately allow completion of IOs, that wait for IO completions on a failed disk
drbd: Keep a reference to barrier acked requests
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_req.h')
| -rw-r--r-- | drivers/block/drbd/drbd_req.h | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/block/drbd/drbd_req.h b/drivers/block/drbd/drbd_req.h index 5135c95fbf85..f6aff150addb 100644 --- a/drivers/block/drbd/drbd_req.h +++ b/drivers/block/drbd/drbd_req.h @@ -106,6 +106,7 @@ enum drbd_req_event { READ_COMPLETED_WITH_ERROR, READ_AHEAD_COMPLETED_WITH_ERROR, WRITE_COMPLETED_WITH_ERROR, + ABORT_DISK_IO, COMPLETED_OK, RESEND, FAIL_FROZEN_DISK_IO, @@ -119,18 +120,21 @@ enum drbd_req_event { * same time, so we should hold the request lock anyways. */ enum drbd_req_state_bits { - /* 210 - * 000: no local possible - * 001: to be submitted + /* 3210 + * 0000: no local possible + * 0001: to be submitted * UNUSED, we could map: 011: submitted, completion still pending - * 110: completed ok - * 010: completed with error + * 0110: completed ok + * 0010: completed with error + * 1001: Aborted (before completion) + * 1x10: Aborted and completed -> free */ __RQ_LOCAL_PENDING, __RQ_LOCAL_COMPLETED, __RQ_LOCAL_OK, + __RQ_LOCAL_ABORTED, - /* 76543 + /* 87654 * 00000: no network possible * 00001: to be send * 00011: to be send, on worker queue @@ -209,8 +213,9 @@ enum drbd_req_state_bits { #define RQ_LOCAL_PENDING (1UL << __RQ_LOCAL_PENDING) #define RQ_LOCAL_COMPLETED (1UL << __RQ_LOCAL_COMPLETED) #define RQ_LOCAL_OK (1UL << __RQ_LOCAL_OK) +#define RQ_LOCAL_ABORTED (1UL << __RQ_LOCAL_ABORTED) -#define RQ_LOCAL_MASK ((RQ_LOCAL_OK << 1)-1) /* 0x07 */ +#define RQ_LOCAL_MASK ((RQ_LOCAL_ABORTED << 1)-1) #define RQ_NET_PENDING (1UL << __RQ_NET_PENDING) #define RQ_NET_QUEUED (1UL << __RQ_NET_QUEUED) |