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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-30 18:05:47 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-30 18:05:47 +0200 |
commit | a70f35af4e49f87ba4b6c4b30220fbb66cd74af6 (patch) | |
tree | f81d1c68d332f7ed32048085fa2972c057f62419 /drivers/block/drbd/drbd_nl.c | |
parent | Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block (diff) | |
parent | Merge branch 'for-jens' of git://git.drbd.org/linux-drbd into for-3.5/drivers (diff) | |
download | linux-a70f35af4e49f87ba4b6c4b30220fbb66cd74af6.tar.xz linux-a70f35af4e49f87ba4b6c4b30220fbb66cd74af6.zip |
Merge branch 'for-3.5/drivers' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
"Here are the driver related changes for 3.5. It contains:
- The floppy changes from Jiri. Jiri is now also marked as the
maintainer of floppy.c, I shall be publically branding his forehead
with red hot iron at the next opportune moment.
- A batch of drbd updates and fixes from the linbit crew, as well as
fixes from others.
- Two small fixes for xen-blkfront courtesy of Jan."
* 'for-3.5/drivers' of git://git.kernel.dk/linux-block: (70 commits)
floppy: take over maintainership
floppy: remove floppy-specific O_EXCL handling
floppy: convert to delayed work and single-thread wq
xen-blkfront: module exit handling adjustments
xen-blkfront: properly name all devices
drbd: grammar fix in log message
drbd: check MODULE for THIS_MODULE
drbd: Restore the request restart logic
drbd: introduce a bio_set to allocate housekeeping bios from
drbd: remove unused define
drbd: bm_page_async_io: properly initialize page->private
drbd: use the newly introduced page pool for bitmap IO
drbd: add page pool to be used for meta data IO
drbd: allow bitmap to change during writeout from resync_finished
drbd: fix race between drbdadm invalidate/verify and finishing resync
drbd: fix resend/resubmit of frozen IO
drbd: Ensure that data_size is not 0 before using data_size-1 as index
drbd: Delay/reject other state changes while establishing a connection
drbd: move put_ldev from __req_mod() to the endio callback
drbd: fix WRITE_ACKED_BY_PEER_AND_SIS to not set RQ_NET_DONE
...
Diffstat (limited to 'drivers/block/drbd/drbd_nl.c')
-rw-r--r-- | drivers/block/drbd/drbd_nl.c | 48 |
1 files changed, 38 insertions, 10 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 946166e13953..6d4de6a72e80 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -289,7 +289,7 @@ static int _try_outdate_peer_async(void *data) */ spin_lock_irq(&mdev->req_lock); ns = mdev->state; - if (ns.conn < C_WF_REPORT_PARAMS) { + if (ns.conn < C_WF_REPORT_PARAMS && !test_bit(STATE_SENT, &mdev->flags)) { ns.pdsk = nps; _drbd_set_state(mdev, ns, CS_VERBOSE, NULL); } @@ -432,7 +432,7 @@ drbd_set_role(struct drbd_conf *mdev, enum drbd_role new_role, int force) /* if this was forced, we should consider sync */ if (forced) drbd_send_uuids(mdev); - drbd_send_state(mdev); + drbd_send_current_state(mdev); } drbd_md_sync(mdev); @@ -845,9 +845,10 @@ void drbd_reconsider_max_bio_size(struct drbd_conf *mdev) Because new from 8.3.8 onwards the peer can use multiple BIOs for a single peer_request */ if (mdev->state.conn >= C_CONNECTED) { - if (mdev->agreed_pro_version < 94) - peer = mdev->peer_max_bio_size; - else if (mdev->agreed_pro_version == 94) + if (mdev->agreed_pro_version < 94) { + peer = min_t(int, mdev->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET); + /* Correct old drbd (up to 8.3.7) if it believes it can do more than 32KiB */ + } else if (mdev->agreed_pro_version == 94) peer = DRBD_MAX_SIZE_H80_PACKET; else /* drbd 8.3.8 onwards */ peer = DRBD_MAX_BIO_SIZE; @@ -1032,7 +1033,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp dev_err(DEV, "max capacity %llu smaller than disk size %llu\n", (unsigned long long) drbd_get_max_capacity(nbc), (unsigned long long) nbc->dc.disk_size); - retcode = ERR_DISK_TO_SMALL; + retcode = ERR_DISK_TOO_SMALL; goto fail; } @@ -1046,7 +1047,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp } if (drbd_get_capacity(nbc->md_bdev) < min_md_device_sectors) { - retcode = ERR_MD_DISK_TO_SMALL; + retcode = ERR_MD_DISK_TOO_SMALL; dev_warn(DEV, "refusing attach: md-device too small, " "at least %llu sectors needed for this meta-disk type\n", (unsigned long long) min_md_device_sectors); @@ -1057,7 +1058,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp * (we may currently be R_PRIMARY with no local disk...) */ if (drbd_get_max_capacity(nbc) < drbd_get_capacity(mdev->this_bdev)) { - retcode = ERR_DISK_TO_SMALL; + retcode = ERR_DISK_TOO_SMALL; goto fail; } @@ -1138,7 +1139,7 @@ static int drbd_nl_disk_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp if (drbd_md_test_flag(nbc, MDF_CONSISTENT) && drbd_new_dev_size(mdev, nbc, 0) < nbc->md.la_size_sect) { dev_warn(DEV, "refusing to truncate a consistent device\n"); - retcode = ERR_DISK_TO_SMALL; + retcode = ERR_DISK_TOO_SMALL; goto force_diskless_dec; } @@ -1336,17 +1337,34 @@ static int drbd_nl_detach(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, { enum drbd_ret_code retcode; int ret; + struct detach dt = {}; + + if (!detach_from_tags(mdev, nlp->tag_list, &dt)) { + reply->ret_code = ERR_MANDATORY_TAG; + goto out; + } + + if (dt.detach_force) { + drbd_force_state(mdev, NS(disk, D_FAILED)); + reply->ret_code = SS_SUCCESS; + goto out; + } + drbd_suspend_io(mdev); /* so no-one is stuck in drbd_al_begin_io */ + drbd_md_get_buffer(mdev); /* make sure there is no in-flight meta-data IO */ retcode = drbd_request_state(mdev, NS(disk, D_FAILED)); + drbd_md_put_buffer(mdev); /* D_FAILED will transition to DISKLESS. */ ret = wait_event_interruptible(mdev->misc_wait, mdev->state.disk != D_FAILED); drbd_resume_io(mdev); + if ((int)retcode == (int)SS_IS_DISKLESS) retcode = SS_NOTHING_TO_DO; if (ret) retcode = ERR_INTR; reply->ret_code = retcode; +out: return 0; } @@ -1711,7 +1729,7 @@ static int drbd_nl_resize(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, if (rs.no_resync && mdev->agreed_pro_version < 93) { retcode = ERR_NEED_APV_93; - goto fail; + goto fail_ldev; } if (mdev->ldev->known_size != drbd_get_capacity(mdev->ldev->backing_bdev)) @@ -1738,6 +1756,10 @@ static int drbd_nl_resize(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, fail: reply->ret_code = retcode; return 0; + + fail_ldev: + put_ldev(mdev); + goto fail; } static int drbd_nl_syncer_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, @@ -1941,6 +1963,7 @@ static int drbd_nl_invalidate(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl /* If there is still bitmap IO pending, probably because of a previous * resync just being finished, wait for it before requesting a new resync. */ + drbd_suspend_io(mdev); wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T), CS_ORDERED); @@ -1959,6 +1982,7 @@ static int drbd_nl_invalidate(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nl retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_T)); } + drbd_resume_io(mdev); reply->ret_code = retcode; return 0; @@ -1980,6 +2004,7 @@ static int drbd_nl_invalidate_peer(struct drbd_conf *mdev, struct drbd_nl_cfg_re /* If there is still bitmap IO pending, probably because of a previous * resync just being finished, wait for it before requesting a new resync. */ + drbd_suspend_io(mdev); wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); retcode = _drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S), CS_ORDERED); @@ -1998,6 +2023,7 @@ static int drbd_nl_invalidate_peer(struct drbd_conf *mdev, struct drbd_nl_cfg_re } else retcode = drbd_request_state(mdev, NS(conn, C_STARTING_SYNC_S)); } + drbd_resume_io(mdev); reply->ret_code = retcode; return 0; @@ -2170,11 +2196,13 @@ static int drbd_nl_start_ov(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp, /* If there is still bitmap IO pending, e.g. previous resync or verify * just being finished, wait for it before requesting a new resync. */ + drbd_suspend_io(mdev); wait_event(mdev->misc_wait, !test_bit(BITMAP_IO, &mdev->flags)); /* w_make_ov_request expects position to be aligned */ mdev->ov_start_sector = args.start_sector & ~BM_SECT_PER_BIT; reply->ret_code = drbd_request_state(mdev,NS(conn,C_VERIFY_S)); + drbd_resume_io(mdev); return 0; } |