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authorPhilipp Reisner <philipp.reisner@linbit.com>2011-05-03 13:27:43 +0200
committerPhilipp Reisner <philipp.reisner@linbit.com>2012-11-08 16:55:41 +0100
commitef5e44a672e444b6957fdccda3f40a5cbe202335 (patch)
tree7405f97a262d5a643b77c776bd225cbe7ceb5b24
parenta0095508cac5c413c7119076b26f536486314ef1 (diff)
downloadvexpress-lsk-ef5e44a672e444b6957fdccda3f40a5cbe202335.tar.gz
drbd: drbd_dew_dev_size() gets the user requests disk_size as argument
Preparing RCU for disk_conf Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com> Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
-rw-r--r--drivers/block/drbd/drbd_int.h2
-rw-r--r--drivers/block/drbd/drbd_nl.c11
-rw-r--r--drivers/block/drbd/drbd_receiver.c2
3 files changed, 8 insertions, 7 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 0311dfde776..8c7e3409c43 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 3bad1412be6..761a6b97b5c 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 567d64b9906..23614e40254 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) {