From: Aran85 <z13121369189@gmail.com>
Date: Wed, 12 May 2021 01:33:06 +0000 (+0800)
Subject: osd: clear data digest when write_trunc
X-Git-Tag: v17.1.0~1983^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F41290%2Fhead;p=ceph.git

osd: clear data digest when write_trunc

like CEPH_OSD_OP_TRUNCATE, the truncate within CEPH_OSD_OP_WRITE should
clear oi.data_digest too.

consider such circumstance:
[write 0~10]
[write 5~10 [1@5]]

the first write will generate data_digest, if the second write don't
clear digest, it will continue calc digest and make crc mismatch.

Fixes: https://tracker.ceph.com/issues/50763

Signed-off-by: Zengran Zhang <zhangzengran@sangfor.com.cn>
---

diff --git a/src/osd/PrimaryLogPG.cc b/src/osd/PrimaryLogPG.cc
index e660cc49fa53..d64f26c66d42 100644
--- a/src/osd/PrimaryLogPG.cc
+++ b/src/osd/PrimaryLogPG.cc
@@ -6668,6 +6668,7 @@ int PrimaryLogPG::do_osd_ops(OpContext *ctx, vector<OSDOp>& ops)
 	        oi.size - op.extent.truncate_size);
 	      ctx->modified_ranges.union_of(trim);
 	      ctx->clean_regions.mark_data_region_dirty(op.extent.truncate_size, oi.size - op.extent.truncate_size);
+	      oi.clear_data_digest();
 	    }
 	    if (op.extent.truncate_size != oi.size) {
               truncate_update_size_and_usage(ctx->delta_stats,