ceph: replace CURRENT_TIME by current_fs_time()

CURRENT_TIME macro is not appropriate for filesystems as it
doesn't use the right granularity for filesystem timestamps.
Use current_fs_time() instead.
Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: Yan, Zheng <zyan@redhat.com>

fs/ceph/file.c

@@ -782,7 +782,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
 	int num_pages = 0;
 	int flags;
 	int ret;
-	struct timespec mtime = CURRENT_TIME;
+	struct timespec mtime = current_fs_time(inode->i_sb);
 	size_t count = iov_iter_count(iter);
 	loff_t pos = iocb->ki_pos;
 	bool write = iov_iter_rw(iter) == WRITE;
@@ -986,7 +986,7 @@ ceph_sync_write(struct kiocb *iocb, struct iov_iter *from, loff_t pos,
 	int flags;
 	int check_caps = 0;
 	int ret;
-	struct timespec mtime = CURRENT_TIME;
+	struct timespec mtime = current_fs_time(inode->i_sb);
 	size_t count = iov_iter_count(from);
 
 	if (ceph_snap(file_inode(file)) != CEPH_NOSNAP)

fs/ceph/inode.c

@@ -1950,7 +1950,7 @@ int ceph_setattr(struct dentry *dentry, struct iattr *attr)
 	if (dirtied) {
 		inode_dirty_flags = __ceph_mark_dirty_caps(ci, dirtied,
 							   &prealloc_cf);
-		inode->i_ctime = CURRENT_TIME;
+		inode->i_ctime = current_fs_time(inode->i_sb);
 	}
 
 	release &= issued;

fs/ceph/mds_client.c

@@ -1729,7 +1729,7 @@ ceph_mdsc_create_request(struct ceph_mds_client *mdsc, int op, int mode)
 	init_completion(&req->r_safe_completion);
 	INIT_LIST_HEAD(&req->r_unsafe_item);
 
-	req->r_stamp = CURRENT_TIME;
+	req->r_stamp = current_fs_time(mdsc->fsc->sb);
 
 	req->r_op = op;
 	req->r_direct_mode = mode;

fs/ceph/xattr.c

@@ -999,7 +999,7 @@ int __ceph_setxattr(struct dentry *dentry, const char *name,
 		dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL,
 					       &prealloc_cf);
 		ci->i_xattrs.dirty = true;
-		inode->i_ctime = CURRENT_TIME;
+		inode->i_ctime = current_fs_time(inode->i_sb);
 	}
 
 	spin_unlock(&ci->i_ceph_lock);
@@ -1136,7 +1136,7 @@ int __ceph_removexattr(struct dentry *dentry, const char *name)
 	dirty = __ceph_mark_dirty_caps(ci, CEPH_CAP_XATTR_EXCL,
 				       &prealloc_cf);
 	ci->i_xattrs.dirty = true;
-	inode->i_ctime = CURRENT_TIME;
+	inode->i_ctime = current_fs_time(inode->i_sb);
 	spin_unlock(&ci->i_ceph_lock);
 	if (lock_snap_rwsem)
 		up_read(&mdsc->snap_rwsem);