From ef5e44a672e444b6957fdccda3f40a5cbe202335 Mon Sep 17 00:00:00 2001 From: Philipp Reisner Date: Tue, 3 May 2011 13:27:43 +0200 Subject: [PATCH] drbd: drbd_dew_dev_size() gets the user requests disk_size as argument Preparing RCU for disk_conf Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_int.h | 2 +- drivers/block/drbd/drbd_nl.c | 11 ++++++----- drivers/block/drbd/drbd_receiver.c | 2 +- 3 files changed, 8 insertions(+), 7 deletions(-) diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index 0311dfde776b..8c7e3409c434 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1395,7 +1395,7 @@ extern int drbd_msg_put_info(const char *info); extern void drbd_suspend_io(struct drbd_conf *mdev); extern void drbd_resume_io(struct drbd_conf *mdev); extern char *ppsize(char *buf, unsigned long long size); -extern sector_t drbd_new_dev_size(struct drbd_conf *, struct drbd_backing_dev *, int); +extern sector_t drbd_new_dev_size(struct drbd_conf *, struct drbd_backing_dev *, sector_t, int); enum determine_dev_size { dev_size_error = -1, unchanged = 0, shrunk = 1, grew = 2 }; extern enum determine_dev_size drbd_determine_dev_size(struct drbd_conf *, enum dds_flags) __must_hold(local); extern void resync_after_online_grow(struct drbd_conf *); diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 3bad1412be69..761a6b97b5c9 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -775,7 +775,7 @@ void drbd_resume_io(struct drbd_conf *mdev) enum determine_dev_size drbd_determine_dev_size(struct drbd_conf *mdev, enum dds_flags flags) __must_hold(local) { sector_t prev_first_sect, prev_size; /* previous meta location */ - sector_t la_size; + sector_t la_size, u_size; sector_t size; char ppb[10]; @@ -803,7 +803,8 @@ enum determine_dev_size drbd_determine_dev_size(struct drbd_conf *mdev, enum dds /* TODO: should only be some assert here, not (re)init... */ drbd_md_set_sector_offsets(mdev, mdev->ldev); - size = drbd_new_dev_size(mdev, mdev->ldev, flags & DDSF_FORCED); + u_size = mdev->ldev->dc.disk_size; + size = drbd_new_dev_size(mdev, mdev->ldev, u_size, flags & DDSF_FORCED); if (drbd_get_capacity(mdev->this_bdev) != size || drbd_bm_capacity(mdev) != size) { @@ -866,12 +867,12 @@ out: } sector_t -drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev, int assume_peer_has_space) +drbd_new_dev_size(struct drbd_conf *mdev, struct drbd_backing_dev *bdev, + sector_t u_size, int assume_peer_has_space) { sector_t p_size = mdev->p_size; /* partner's disk size. */ sector_t la_size = bdev->md.la_size_sect; /* last agreed size. */ sector_t m_size; /* my size */ - sector_t u_size = bdev->dc.disk_size; /* size requested by user. */ sector_t size = 0; m_size = drbd_get_max_capacity(bdev); @@ -1406,7 +1407,7 @@ int drbd_adm_attach(struct sk_buff *skb, struct genl_info *info) /* Prevent shrinking of consistent devices ! */ if (drbd_md_test_flag(nbc, MDF_CONSISTENT) && - drbd_new_dev_size(mdev, nbc, 0) < nbc->md.la_size_sect) { + drbd_new_dev_size(mdev, nbc, nbc->dc.disk_size, 0) < nbc->md.la_size_sect) { dev_warn(DEV, "refusing to truncate a consistent device\n"); retcode = ERR_DISK_TO_SMALL; goto force_diskless_dec; diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c index 567d64b9906c..23614e40254a 100644 --- a/drivers/block/drbd/drbd_receiver.c +++ b/drivers/block/drbd/drbd_receiver.c @@ -3379,7 +3379,7 @@ static int receive_sizes(struct drbd_tconn *tconn, struct packet_info *pi) /* Never shrink a device with usable data during connect. But allow online shrinking if we are connected. */ - if (drbd_new_dev_size(mdev, mdev->ldev, 0) < + if (drbd_new_dev_size(mdev, mdev->ldev, p_usize, 0) < drbd_get_capacity(mdev->this_bdev) && mdev->state.disk >= D_OUTDATED && mdev->state.conn < C_CONNECTED) { -- 2.20.1