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drbd: drop now useless duplicate state request from invalidate

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Patch best viewed with git diff --ignore-space-change.

Now that we attempt the fallback to local bitmap operation
only when disconnected, we can safely drop the extra "silent"
state request from both invalidate and invalidate-remote.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Philipp Reisner 2013-03-27 14:08:38 +01:00 committed by Jens Axboe
parent 5c4f13d991
commit 0b2dafcd9f
1 changed files with 28 additions and 34 deletions
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62
drivers/block/drbd/drbd_nl.c
View File

@ -2446,26 +2446,19 @@ int drbd_adm_invalidate(struct sk_buff *skb, struct genl_info *info)
wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
drbd_flush_workqueue(mdev);
retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T), CS_ORDERED);
/* If that did not work, try again,
* but log failures this time (implicit CS_VERBOSE).
*
* If we happen to be C_STANDALONE R_SECONDARY,
* just change to D_INCONSISTENT, and set all bits in the bitmap.
* Otherwise, we just fail, to avoid races with the resync handshake.
/* If we happen to be C_STANDALONE R_SECONDARY, just change to
* D_INCONSISTENT, and set all bits in the bitmap. Otherwise,
* try to start a resync handshake as sync target for full sync.
*/
if (retcode < SS_SUCCESS) {
if (mdev->state.conn == C_STANDALONE && mdev->state.role == R_SECONDARY) {
retcode = drbd_request_state(mdev, NS(disk, D_INCONSISTENT));
if (retcode >= SS_SUCCESS) {
if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write,
"set_n_write from invalidate", BM_LOCKED_MASK))
retcode = ERR_IO_MD_DISK;
}
} else
retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T));
}
if (mdev->state.conn == C_STANDALONE && mdev->state.role == R_SECONDARY) {
retcode = drbd_request_state(mdev, NS(disk, D_INCONSISTENT));
if (retcode >= SS_SUCCESS) {
if (drbd_bitmap_io(mdev, &drbd_bmio_set_n_write,
"set_n_write from invalidate", BM_LOCKED_MASK))
retcode = ERR_IO_MD_DISK;
}
} else
retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T));
drbd_resume_io(mdev);
out:
@ -2519,21 +2512,22 @@ int drbd_adm_invalidate_peer(struct sk_buff *skb, struct genl_info *info)
wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags));
drbd_flush_workqueue(mdev);
retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S), CS_ORDERED);
if (retcode < SS_SUCCESS) {
if (mdev->state.conn == C_STANDALONE && mdev->state.role == R_PRIMARY) {
/* The peer will get a resync upon connect anyways. Just make that
into a full resync. */
retcode = drbd_request_state(mdev, NS(pdsk, D_INCONSISTENT));
if (retcode >= SS_SUCCESS) {
if (drbd_bitmap_io(mdev, &drbd_bmio_set_susp_al,
"set_n_write from invalidate_peer",
BM_LOCKED_SET_ALLOWED))
retcode = ERR_IO_MD_DISK;
}
} else
retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S));
}
/* If we happen to be C_STANDALONE R_PRIMARY, just set all bits
* in the bitmap. Otherwise, try to start a resync handshake
* as sync source for full sync.
*/
if (mdev->state.conn == C_STANDALONE && mdev->state.role == R_PRIMARY) {
/* The peer will get a resync upon connect anyways. Just make that
into a full resync. */
retcode = drbd_request_state(mdev, NS(pdsk, D_INCONSISTENT));
if (retcode >= SS_SUCCESS) {
if (drbd_bitmap_io(mdev, &drbd_bmio_set_susp_al,
"set_n_write from invalidate_peer",
BM_LOCKED_SET_ALLOWED))
retcode = ERR_IO_MD_DISK;
}
} else
retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S));
drbd_resume_io(mdev);
out: