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| author | Yan, Zheng <zheng.z.yan@intel.com> | 2012-11-30 13:49:51 +0800 |
|---|---|---|
| committer | Alex Elder <elder@inktank.com> | 2013-01-17 12:42:37 -0600 |
| commit | a41bad1a9b9f9982eb9b451165724c5f81096683 (patch) | |
| tree | 1bc98665b919bb81d68152422484a5af220af4d2 /net | |
| parent | 6e8575faa8fa680d59404a4d58d12190667be815 (diff) | |
| download | linux-a41bad1a9b9f9982eb9b451165724c5f81096683.tar.gz linux-a41bad1a9b9f9982eb9b451165724c5f81096683.tar.bz2 linux-a41bad1a9b9f9982eb9b451165724c5f81096683.zip | |
ceph: re-calculate truncate_size for strip object
Otherwise osd may truncate the object to larger size.
Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ceph/osd_client.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index eb9a44478764..267f183b801a 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -76,8 +76,16 @@ int ceph_calc_raw_layout(struct ceph_osd_client *osdc, orig_len - *plen, off, *plen); if (op_has_extent(op->op)) { + u32 osize = le32_to_cpu(layout->fl_object_size); op->extent.offset = objoff; op->extent.length = objlen; + if (op->extent.truncate_size <= off - objoff) { + op->extent.truncate_size = 0; + } else { + op->extent.truncate_size -= off - objoff; + if (op->extent.truncate_size > osize) + op->extent.truncate_size = osize; + } } req->r_num_pages = calc_pages_for(off, *plen); req->r_page_alignment = off & ~PAGE_MASK; |