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path: root/drivers/block/drbd/drbd_nl.c
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Diffstat (limited to 'drivers/block/drbd/drbd_nl.c')
-rw-r--r--drivers/block/drbd/drbd_nl.c52
1 files changed, 30 insertions, 22 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 6429d2b19e06..632e3245d1bb 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -510,7 +510,7 @@ void drbd_resume_io(struct drbd_conf *mdev)
* Returns 0 on success, negative return values indicate errors.
* You should call drbd_md_sync() after calling this function.
*/
-enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev, int force) __must_hold(local)
+enum determine_dev_size drbd_determin_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;
@@ -541,12 +541,12 @@ enum determine_dev_size drbd_determin_dev_size(struct drbd_conf *mdev, int force
/* 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, force);
+ size = drbd_new_dev_size(mdev, mdev->ldev, flags & DDSF_FORCED);
if (drbd_get_capacity(mdev->this_bdev) != size ||
drbd_bm_capacity(mdev) != size) {
int err;
- err = drbd_bm_resize(mdev, size);
+ err = drbd_bm_resize(mdev, size, !(flags & DDSF_NO_RESYNC));
if (unlikely(err)) {
/* currently there is only one error: ENOMEM! */
size = drbd_bm_capacity(mdev)>>1;
@@ -704,9 +704,6 @@ void drbd_setup_queue_param(struct drbd_conf *mdev, unsigned int max_seg_s) __mu
struct request_queue * const b = mdev->ldev->backing_bdev->bd_disk->queue;
int max_segments = mdev->ldev->dc.max_bio_bvecs;
- if (b->merge_bvec_fn && !mdev->ldev->dc.use_bmbv)
- max_seg_s = PAGE_SIZE;
-
max_seg_s = min(queue_max_sectors(b) * queue_logical_block_size(b), max_seg_s);
blk_queue_max_hw_sectors(q, max_seg_s >> 9);
@@ -1199,13 +1196,12 @@ static int drbd_nl_net_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
}
/* allocation not in the IO path, cqueue thread context */
- new_conf = kmalloc(sizeof(struct net_conf), GFP_KERNEL);
+ new_conf = kzalloc(sizeof(struct net_conf), GFP_KERNEL);
if (!new_conf) {
retcode = ERR_NOMEM;
goto fail;
}
- memset(new_conf, 0, sizeof(struct net_conf));
new_conf->timeout = DRBD_TIMEOUT_DEF;
new_conf->try_connect_int = DRBD_CONNECT_INT_DEF;
new_conf->ping_int = DRBD_PING_INT_DEF;
@@ -1477,8 +1473,8 @@ static int drbd_nl_resize(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
{
struct resize rs;
int retcode = NO_ERROR;
- int ldsc = 0; /* local disk size changed */
enum determine_dev_size dd;
+ enum dds_flags ddsf;
memset(&rs, 0, sizeof(struct resize));
if (!resize_from_tags(mdev, nlp->tag_list, &rs)) {
@@ -1502,13 +1498,17 @@ static int drbd_nl_resize(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
goto fail;
}
- if (mdev->ldev->known_size != drbd_get_capacity(mdev->ldev->backing_bdev)) {
- mdev->ldev->known_size = drbd_get_capacity(mdev->ldev->backing_bdev);
- ldsc = 1;
+ if (rs.no_resync && mdev->agreed_pro_version < 93) {
+ retcode = ERR_NEED_APV_93;
+ goto fail;
}
+ if (mdev->ldev->known_size != drbd_get_capacity(mdev->ldev->backing_bdev))
+ mdev->ldev->known_size = drbd_get_capacity(mdev->ldev->backing_bdev);
+
mdev->ldev->dc.disk_size = (sector_t)rs.resize_size;
- dd = drbd_determin_dev_size(mdev, rs.resize_force);
+ ddsf = (rs.resize_force ? DDSF_FORCED : 0) | (rs.no_resync ? DDSF_NO_RESYNC : 0);
+ dd = drbd_determin_dev_size(mdev, ddsf);
drbd_md_sync(mdev);
put_ldev(mdev);
if (dd == dev_size_error) {
@@ -1516,12 +1516,12 @@ static int drbd_nl_resize(struct drbd_conf *mdev, struct drbd_nl_cfg_req *nlp,
goto fail;
}
- if (mdev->state.conn == C_CONNECTED && (dd != unchanged || ldsc)) {
+ if (mdev->state.conn == C_CONNECTED) {
if (dd == grew)
set_bit(RESIZE_PENDING, &mdev->flags);
drbd_send_uuids(mdev);
- drbd_send_sizes(mdev, 1);
+ drbd_send_sizes(mdev, 1, ddsf);
}
fail:
@@ -1551,6 +1551,10 @@ static int drbd_nl_syncer_conf(struct drbd_conf *mdev, struct drbd_nl_cfg_req *n
sc.rate = DRBD_RATE_DEF;
sc.after = DRBD_AFTER_DEF;
sc.al_extents = DRBD_AL_EXTENTS_DEF;
+ sc.dp_volume = DRBD_DP_VOLUME_DEF;
+ sc.dp_interval = DRBD_DP_INTERVAL_DEF;
+ sc.throttle_th = DRBD_RS_THROTTLE_TH_DEF;
+ sc.hold_off_th = DRBD_RS_HOLD_OFF_TH_DEF;
} else
memcpy(&sc, &mdev->sync_conf, sizeof(struct syncer_conf));
@@ -2207,9 +2211,9 @@ void drbd_bcast_ee(struct drbd_conf *mdev,
{
struct cn_msg *cn_reply;
struct drbd_nl_cfg_reply *reply;
- struct bio_vec *bvec;
unsigned short *tl;
- int i;
+ struct page *page;
+ unsigned len;
if (!e)
return;
@@ -2247,11 +2251,15 @@ void drbd_bcast_ee(struct drbd_conf *mdev,
put_unaligned(T_ee_data, tl++);
put_unaligned(e->size, tl++);
- __bio_for_each_segment(bvec, e->private_bio, i, 0) {
- void *d = kmap(bvec->bv_page);
- memcpy(tl, d + bvec->bv_offset, bvec->bv_len);
- kunmap(bvec->bv_page);
- tl=(unsigned short*)((char*)tl + bvec->bv_len);
+ len = e->size;
+ page = e->pages;
+ page_chain_for_each(page) {
+ void *d = kmap_atomic(page, KM_USER0);
+ unsigned l = min_t(unsigned, len, PAGE_SIZE);
+ memcpy(tl, d, l);
+ kunmap_atomic(d, KM_USER0);
+ tl = (unsigned short*)((char*)tl + l);
+ len -= l;
}
put_unaligned(TT_END, tl++); /* Close the tag list */