ceph: add btime field to ceph_inode_info

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

4 files changed, 17 insertions, 8 deletions

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index b2988e9f8e15..909f13d4d664 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -509,6 +509,7 @@ struct inode *ceph_alloc_inode(struct super_block *sb)
 
         INIT_WORK(&ci->i_work, ceph_inode_work);
         ci->i_work_mask = 0;
+        memset(&ci->i_btime, '\0', sizeof(ci->i_btime));
 
         ceph_fscache_inode_init(ci);
 
@@ -813,6 +814,7 @@ 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_btime, &iinfo->btime);
                 ceph_decode_timespec64(&ci->i_snap_btime, &iinfo->snap_btime);
         }
 
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 598a3fa280a7..636d3df47df6 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -150,14 +150,13 @@ static int parse_reply_info_in(void **p, void *end,
                         info->pool_ns_data = *p;
                         *p += info->pool_ns_len;
                 }
-                /* btime, change_attr */
-                {
-                        struct ceph_timespec btime;
-                        u64 change_attr;
-                        ceph_decode_need(p, end, sizeof(btime), bad);
-                        ceph_decode_copy(p, &btime, sizeof(btime));
-                        ceph_decode_64_safe(p, end, change_attr, bad);
-                }
+
+                /* btime */
+                ceph_decode_need(p, end, sizeof(info->btime), bad);
+                ceph_decode_copy(p, &info->btime, sizeof(info->btime));
+
+                /* change attribute */
+                ceph_decode_skip_64(p, end, bad);
 
                 /* dir pin */
                 if (struct_v >= 2) {
@@ -206,6 +205,12 @@ static int parse_reply_info_in(void **p, void *end,
                         }
                 }
 
+                if (features & CEPH_FEATURE_FS_BTIME) {
+                        ceph_decode_need(p, end, sizeof(info->btime), bad);
+                        ceph_decode_copy(p, &info->btime, sizeof(info->btime));
+                        ceph_decode_skip_64(p, end, bad);
+                }
+
                 info->dir_pin = -ENODATA;
                 /* info->snap_btime remains zero */
         }
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index 330769ecb601..da2f53646217 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -69,6 +69,7 @@ struct ceph_mds_reply_info_in {
         u64 max_bytes;
         u64 max_files;
         s32 dir_pin;
+        struct ceph_timespec btime;
         struct ceph_timespec snap_btime;
 };
 
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 81bbb197fc3c..859d1f3a0d4a 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -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_btime;
         struct timespec64 i_snap_btime;
 
         struct work_struct i_work;