fs/ceph/snap.c

536 	struct ceph_cap_snap *capsnap = *pcapsnap;
550 	 * up this capsnap it will be.
583 			capsnap->need_flush = true;
594 	      inode, ceph_vinop(inode), capsnap, old_snapc,
595 	      ceph_cap_string(dirty), capsnap->need_flush ? "" : "no_flush");
598 	capsnap->follows = old_snapc->seq;
599 	capsnap->issued = __ceph_caps_issued(ci, NULL);
600 	capsnap->dirty = dirty;
602 	capsnap->mode = inode->i_mode;
603 	capsnap->uid = inode->i_uid;
604 	capsnap->gid = inode->i_gid;
608 		capsnap->xattr_blob =
610 		capsnap->xattr_version = ci->i_xattrs.version;
612 		capsnap->xattr_blob = NULL;
613 		capsnap->xattr_version = 0;
616 	capsnap->inline_data = ci->i_inline_version != CEPH_INLINE_NONE;
621 	capsnap->dirty_pages = ci->i_wrbuffer_ref_head;
623 	capsnap->context = old_snapc;
624 	list_add_tail(&capsnap->ci_item, &ci->i_cap_snaps);
628 		      " now pending\n", inode, ceph_vinop(inode), capsnap,
630 		capsnap->writing = 1;
633 		__ceph_finish_cap_snap(ci, capsnap);
658  * If capsnap can now be flushed, add to snap_flush list, and return 1.
663 			    struct ceph_cap_snap *capsnap)
669 	BUG_ON(capsnap->writing);
670 	capsnap->size = i_size_read(inode);
671 	capsnap->mtime = inode_get_mtime(inode);
672 	capsnap->atime = inode_get_atime(inode);
673 	capsnap->ctime = inode_get_ctime(inode);
674 	capsnap->btime = ci->i_btime;
675 	capsnap->change_attr = inode_peek_iversion_raw(inode);
676 	capsnap->time_warp_seq = ci->i_time_warp_seq;
677 	capsnap->truncate_size = ci->i_truncate_size;
678 	capsnap->truncate_seq = ci->i_truncate_seq;
679 	if (capsnap->dirty_pages) {
682 		      ceph_vinop(inode), capsnap, capsnap->context,
683 		      capsnap->context->seq,
684 		      ceph_cap_string(capsnap->dirty),
685 		      capsnap->size, capsnap->dirty_pages);
690 	 * Defer flushing the capsnap if the dirty buffer not flushed yet.
696 		      ceph_vinop(inode), capsnap, capsnap->context,
697 		      capsnap->context->seq, ceph_cap_string(capsnap->dirty),
698 		      capsnap->size);
705 	      inode, ceph_vinop(inode), capsnap, capsnap->context,
706 	      capsnap->context->seq, ceph_cap_string(capsnap->dirty),
707 	      capsnap->size);
728 	struct ceph_cap_snap *capsnap = NULL;
742 		 * Allocate the capsnap memory outside of ceph_queue_cap_snap()
746 		if (!capsnap) {
747 			capsnap = kmem_cache_zalloc(ceph_cap_snap_cachep, GFP_NOFS);
748 			if (!capsnap) {
755 		capsnap->cap_flush.is_capsnap = true;
756 		refcount_set(&capsnap->nref, 1);
757 		INIT_LIST_HEAD(&capsnap->cap_flush.i_list);
758 		INIT_LIST_HEAD(&capsnap->cap_flush.g_list);
759 		INIT_LIST_HEAD(&capsnap->ci_item);
761 		ceph_queue_cap_snap(ci, &capsnap);
767 	if (capsnap)
768 		kmem_cache_free(ceph_cap_snap_cachep, capsnap);