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| author | David Disseldorp <ddiss@suse.de> | 2019-04-18 15:15:46 +0300 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2019-07-08 15:01:40 +0300 |
| commit | 193e7b37628e97c6e66ec26a2c062dace68b4acd (patch) | |
| tree | 24bcc4b4dc2d768479ab76a1e7e1609c6319059b /fs/ceph/mds_client.c | |
| parent | e1b814391440b65df0836cef8c7b641fb83f4bf6 (diff) | |
| download | linux-193e7b37628e97c6e66ec26a2c062dace68b4acd.tar.xz | |
ceph: carry snapshot creation time with inodes
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>
Diffstat (limited to 'fs/ceph/mds_client.c')
| -rw-r--r-- | fs/ceph/mds_client.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c index c8a9b89b922d..0b78507eccb0 100644 --- a/fs/ceph/mds_client.c +++ b/fs/ceph/mds_client.c @@ -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: |