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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

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* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (23 commits)
  ceph: fix cap flush race reentrancy
  libceph: subscribe to osdmap when cluster is full
  libceph: handle new osdmap down/state change encoding
  rbd: handle online resize of underlying rbd image
  ceph: avoid inode lookup on nfs fh reconnect
  ceph: use LOOKUPINO to make unconnected nfs fh more reliable
  rbd: use snprintf for disk->disk_name
  rbd: cleanup: make kfree match kmalloc
  rbd: warn on update_snaps failure on notify
  ceph: check return value for start_request in writepages
  ceph: remove useless check
  libceph: add missing breaks in addr_set_port
  libceph: fix TAG_WAIT case
  ceph: fix broken comparison in readdir loop
  libceph: fix osdmap timestamp assignment
  ceph: fix rare potential cap leak
  libceph: use snprintf for unknown addrs
  libceph: use snprintf for formatting object name
  ceph: use snprintf for dirstat content
  libceph: fix uninitialized value when no get_authorizer method is set
  ...
This commit is contained in:
Linus Torvalds 2011-05-25 11:46:31 -07:00
commit 57bb559574
11 changed files with 173 additions and 75 deletions
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27
drivers/block/rbd.c
View file

@ -1191,14 +1191,19 @@ static int rbd_req_sync_notify_ack(struct rbd_device *dev,
static void rbd_watch_cb(u64 ver, u64 notify_id, u8 opcode, void *data)
{
struct rbd_device *dev = (struct rbd_device *)data;
int rc;
if (!dev)
return;
dout("rbd_watch_cb %s notify_id=%lld opcode=%d\n", dev->obj_md_name,
notify_id, (int)opcode);
mutex_lock_nested(&ctl_mutex, SINGLE_DEPTH_NESTING);
__rbd_update_snaps(dev);
rc = __rbd_update_snaps(dev);
mutex_unlock(&ctl_mutex);
if (rc)
pr_warning(DRV_NAME "%d got notification but failed to update"
" snaps: %d\n", dev->major, rc);
rbd_req_sync_notify_ack(dev, ver, notify_id, dev->obj_md_name);
}
@ -1597,7 +1602,7 @@ static int rbd_header_add_snap(struct rbd_device *dev,
int name_len = strlen(snap_name);
u64 new_snapid;
int ret;
void *data, *data_start, *data_end;
void *data, *p, *e;
u64 ver;
/* we should create a snapshot only if we're pointing at the head */
@ -1614,16 +1619,16 @@ static int rbd_header_add_snap(struct rbd_device *dev,
if (!data)
return -ENOMEM;
data_start = data;
data_end = data + name_len + 16;
p = data;
e = data + name_len + 16;
ceph_encode_string_safe(&data, data_end, snap_name, name_len, bad);
ceph_encode_64_safe(&data, data_end, new_snapid, bad);
ceph_encode_string_safe(&p, e, snap_name, name_len, bad);
ceph_encode_64_safe(&p, e, new_snapid, bad);
ret = rbd_req_sync_exec(dev, dev->obj_md_name, "rbd", "snap_add",
data_start, data - data_start, &ver);
data, p - data, &ver);
kfree(data_start);
kfree(data);
if (ret < 0)
return ret;
@ -1659,6 +1664,9 @@ static int __rbd_update_snaps(struct rbd_device *rbd_dev)
if (ret < 0)
return ret;
/* resized? */
set_capacity(rbd_dev->disk, h.image_size / 512ULL);
down_write(&rbd_dev->header.snap_rwsem);
snap_seq = rbd_dev->header.snapc->seq;
@ -1716,7 +1724,8 @@ static int rbd_init_disk(struct rbd_device *rbd_dev)
if (!disk)
goto out;
sprintf(disk->disk_name, DRV_NAME "%d", rbd_dev->id);
snprintf(disk->disk_name, sizeof(disk->disk_name), DRV_NAME "%d",
rbd_dev->id);
disk->major = rbd_dev->major;
disk->first_minor = 0;
disk->fops = &rbd_bd_ops;