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yaml
---
r: 347557
b: refs/heads/master
c: 9478554
h: refs/heads/master
i:
  347555: ef9e7a5
v: v3
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Alex Elder committed Oct 10, 2012
1 parent dce650d commit 9a7c427
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Showing 2 changed files with 17 additions and 12 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 802c6d967fbdcd2cbc91b917425661bb8bbfaade
refs/heads/master: 9478554ae5d21d65e948a3eff4ee2a8ad30d70e9
27 changes: 16 additions & 11 deletions trunk/drivers/block/rbd.c
Original file line number Diff line number Diff line change
Expand Up @@ -1716,6 +1716,19 @@ static void __rbd_remove_all_snaps(struct rbd_device *rbd_dev)
__rbd_remove_snap_dev(snap);
}

static void rbd_update_mapping_size(struct rbd_device *rbd_dev)
{
sector_t size;

if (rbd_dev->mapping.snap_id != CEPH_NOSNAP)
return;

size = (sector_t) rbd_dev->header.image_size / SECTOR_SIZE;
dout("setting size to %llu sectors", (unsigned long long) size);
rbd_dev->mapping.size = (u64) size;
set_capacity(rbd_dev->disk, size);
}

/*
* only read the first part of the ondisk header, without the snaps info
*/
Expand All @@ -1730,17 +1743,9 @@ static int __rbd_refresh_header(struct rbd_device *rbd_dev, u64 *hver)

down_write(&rbd_dev->header_rwsem);

/* resized? */
if (rbd_dev->mapping.snap_id == CEPH_NOSNAP) {
sector_t size = (sector_t) h.image_size / SECTOR_SIZE;

if (size != (sector_t) rbd_dev->mapping.size) {
dout("setting size to %llu sectors",
(unsigned long long) size);
rbd_dev->mapping.size = (u64) size;
set_capacity(rbd_dev->disk, size);
}
}
/* Update image size, and check for resize of mapped image */
rbd_dev->header.image_size = h.image_size;
rbd_update_mapping_size(rbd_dev);

/* rbd_dev->header.object_prefix shouldn't change */
kfree(rbd_dev->header.snap_sizes);
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