Commit 193e7b37 authored by David Disseldorp's avatar David Disseldorp Committed by Ilya Dryomov
Browse files

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: default avatarDavid Disseldorp <ddiss@suse.de>
Reviewed-by: default avatar"Yan, Zheng" <zyan@redhat.com>
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent e1b81439

fs/ceph/inode.c

+1 −0
Original line number Diff line number Diff line
@@ -813,6 +813,7 @@ static int fill_inode(struct inode *inode, struct page *locked_page, 
		dout("%p mode 0%o uid.gid %d.%d\n", inode, inode->i_mode,

		     from_kuid(&init_user_ns, inode->i_uid),

		     from_kgid(&init_user_ns, inode->i_gid));

		ceph_decode_timespec64(&ci->i_snap_btime, &iinfo->snap_btime);

	}



	if ((new_version || (new_issued & CEPH_CAP_LINK_SHARED)) &&

fs/ceph/mds_client.c

+10 −0
Original line number Diff line number Diff line
@@ -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:

fs/ceph/mds_client.h

+1 −0
Original line number Diff line number Diff line
@@ -69,6 +69,7 @@ struct ceph_mds_reply_info_in { 
	u64 max_bytes;

	u64 max_files;

	s32 dir_pin;

	struct ceph_timespec snap_btime;

};



struct ceph_mds_reply_dir_entry {

fs/ceph/super.h

+1 −0
Original line number Diff line number Diff line
@@ -384,6 +384,7 @@ struct ceph_inode_info { 
	int i_snap_realm_counter; /* snap realm (if caps) */

	struct list_head i_snap_realm_item;

	struct list_head i_snap_flush_item;

	struct timespec64 i_snap_btime;



	struct work_struct i_work;

	unsigned long  i_work_mask;

CRA Git | Maintained and supported by SUSTech CRA and CCSE