fs/ntfs3/fslog.c

395 struct lcb {
403 static void lcb_put(struct lcb *lcb)
405 	if (lcb->alloc)
406 		kfree(lcb->log_rec);
407 	kfree(lcb->lrh);
408 	kfree(lcb);
2385 static int find_log_rec(struct ntfs_log *log, u64 lsn, struct lcb *lcb)
2388 	struct LFS_RECORD_HDR *rh = lcb->lrh;
2396 		lcb->lrh = rh;
2428 		lcb->log_rec = lr;
2429 		lcb->alloc = true;
2442 		lcb->log_rec = Add2Ptr(rh, sizeof(struct LFS_RECORD_HDR));
2443 		lcb->alloc = false;
2453 			    struct lcb **lcb_)
2457 	struct lcb *lcb;
2474 	lcb = kzalloc(sizeof(struct lcb), GFP_NOFS);
2475 	if (!lcb)
2477 	lcb->client = log->client_id;
2478 	lcb->ctx_mode = ctx_mode;
2481 	err = find_log_rec(log, lsn, lcb);
2485 	*lcb_ = lcb;
2489 	lcb_put(lcb);
2499 static int find_client_next_lsn(struct ntfs_log *log, struct lcb *lcb, u64 *lsn)
2505 	hdr = lcb->lrh;
2508 	if (lcb_ctx_next != lcb->ctx_mode)
2522 		if (hdr != lcb->lrh)
2531 		if (memcmp(&hdr->client, &lcb->client,
2535 			kfree(lcb->lrh);
2536 			lcb->lrh = hdr;
2543 	if (hdr != lcb->lrh)
2548 	if (lcb_ctx_undo_next == lcb->ctx_mode)
2550 	else if (lcb_ctx_prev == lcb->ctx_mode)
2568 	kfree(lcb->lrh);
2569 	lcb->lrh = hdr;
2576 static int read_next_log_rec(struct ntfs_log *log, struct lcb *lcb, u64 *lsn)
2580 	err = find_client_next_lsn(log, lcb, lsn);
2587 	if (lcb->alloc)
2588 		kfree(lcb->log_rec);
2590 	lcb->log_rec = NULL;
2591 	lcb->alloc = false;
2592 	kfree(lcb->lrh);
2593 	lcb->lrh = NULL;
2595 	return find_log_rec(log, *lsn, lcb);
3756 	struct lcb *lcb = NULL;
4133 	err = read_log_rec_lcb(log, t64, lcb_ctx_prev, &lcb);
4137 	lrh = lcb->log_rec;
4138 	frh = lcb->lrh;
4164 	lcb_put(lcb);
4165 	lcb = NULL;
4173 	err = read_log_rec_lcb(log, t64, lcb_ctx_prev, &lcb);
4177 	lrh = lcb->log_rec;
4178 	frh = lcb->lrh;
4218 	lcb_put(lcb);
4219 	lcb = NULL;
4250 	err = read_log_rec_lcb(log, t64, lcb_ctx_prev, &lcb);
4254 	lrh = lcb->log_rec;
4255 	frh = lcb->lrh;
4273 	lcb_put(lcb);
4274 	lcb = NULL;
4282 	err = read_log_rec_lcb(log, t64, lcb_ctx_prev, &lcb);
4286 	lrh = lcb->log_rec;
4287 	frh = lcb->lrh;
4335 	lcb_put(lcb);
4336 	lcb = NULL;
4399 	err = read_log_rec_lcb(log, checkpt_lsn, lcb_ctx_next, &lcb);
4405 	err = read_next_log_rec(log, lcb, &rec_lsn);
4412 	frh = lcb->lrh;
4415 	lrh = lcb->log_rec;
4680 	lcb_put(lcb);
4681 	lcb = NULL;
4880 	err = read_log_rec_lcb(log, rlsn, lcb_ctx_next, &lcb);
4889 	frh = lcb->lrh;
4896 	lrh = lcb->log_rec;
5005 	err = read_next_log_rec(log, lcb, &rec_lsn);
5009 	lcb_put(lcb);
5010 	lcb = NULL;
5036 	err = read_log_rec_lcb(log, undo_next_lsn, lcb_ctx_undo_next, &lcb);
5046 	lrh = lcb->log_rec;
5047 	frh = lcb->lrh;
5112 	err = read_next_log_rec(log, lcb, &rec_lsn);
5119 	lcb_put(lcb);
5120 	lcb = NULL;
5182 	if (lcb)
5183 		lcb_put(lcb);