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ceph: carry snapshot creation time with inodes

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MDS InodeStat v3 wire structures include a trailing snapshot creation
time member. Unmarshall this and retain it for a future vxattr.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
David Disseldorp
2019-04-18 14:15:46 +02:00
committed by Ilya Dryomov
parent e1b8143914
commit 193e7b3762
4 changed files with 13 additions and 0 deletions
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10
fs/ceph/mds_client.c
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@@ -166,6 +166,15 @@ static int parse_reply_info_in(void **p, void *end,
info->dir_pin = -ENODATA;
}
/* snapshot birth time, remains zero for v<=2 */
if (struct_v >= 3) {
ceph_decode_need(p, end, sizeof(info->snap_btime), bad);
ceph_decode_copy(p, &info->snap_btime,
sizeof(info->snap_btime));
} else {
memset(&info->snap_btime, 0, sizeof(info->snap_btime));
}
*p = end;
} else {
if (features & CEPH_FEATURE_MDS_INLINE_DATA) {
@@ -198,6 +207,7 @@ static int parse_reply_info_in(void **p, void *end,
}
info->dir_pin = -ENODATA;
/* info->snap_btime remains zero */
}
return 0;
bad: