rtl88x2CE_WiFi_linux add concurrent mode

hc

2024-09-20 cf4ce59b3b70238352c7f1729f0f7223214828ad

 kernel/fs/ubifs/tnc_commit.c
..
..
@@ -1,20 +1,8 @@
1
+// SPDX-License-Identifier: GPL-2.0-only
1
2
 /*
2
3
  * This file is part of UBIFS.
3
4
  *
4
5
  * Copyright (C) 2006-2008 Nokia Corporation.
5
- *
6
- * This program is free software; you can redistribute it and/or modify it
7
- * under the terms of the GNU General Public License version 2 as published by
8
- * the Free Software Foundation.
9
- *
10
- * This program is distributed in the hope that it will be useful, but WITHOUT
11
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13
- * more details.
14
- *
15
- * You should have received a copy of the GNU General Public License along with
16
- * this program; if not, write to the Free Software Foundation, Inc., 51
17
- * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
6
  *
19
7
  * Authors: Adrian Hunter
20
8
  *          Artem Bityutskiy (Битюцкий Артём)
..
..
@@ -38,6 +26,7 @@
38
26
 			 struct ubifs_znode *znode, int lnum, int offs, int len)
39
27
 {
40
28
 	struct ubifs_znode *zp;
29
+	u8 hash[UBIFS_HASH_ARR_SZ];
41
30
 	int i, err;
42
31
 
43
32
 	/* Make index node */
..
..
@@ -52,6 +41,7 @@
52
41
 		br->lnum = cpu_to_le32(zbr->lnum);
53
42
 		br->offs = cpu_to_le32(zbr->offs);
54
43
 		br->len = cpu_to_le32(zbr->len);
44
+		ubifs_copy_hash(c, zbr->hash, ubifs_branch_hash(c, br));
55
45
 		if (!zbr->lnum || !zbr->len) {
56
46
 			ubifs_err(c, "bad ref in znode");
57
47
 			ubifs_dump_znode(c, znode);
..
..
@@ -62,6 +52,7 @@
62
52
 		}
63
53
 	}
64
54
 	ubifs_prepare_node(c, idx, len, 0);
55
+	ubifs_node_calc_hash(c, idx, hash);
65
56
 
66
57
 	znode->lnum = lnum;
67
58
 	znode->offs = offs;
..
..
@@ -78,10 +69,12 @@
78
69
 		zbr->lnum = lnum;
79
70
 		zbr->offs = offs;
80
71
 		zbr->len = len;
72
+		ubifs_copy_hash(c, hash, zbr->hash);
81
73
 	} else {
82
74
 		c->zroot.lnum = lnum;
83
75
 		c->zroot.offs = offs;
84
76
 		c->zroot.len = len;
77
+		ubifs_copy_hash(c, hash, c->zroot.hash);
85
78
 	}
86
79
 	c->calc_idx_sz += ALIGN(len, 8);
87
80
 
..
..
@@ -667,6 +660,8 @@
667
660
 			znode->cnext = c->cnext;
668
661
 			break;
669
662
 		}
663
+		znode->cparent = znode->parent;
664
+		znode->ciip = znode->iip;
670
665
 		znode->cnext = cnext;
671
666
 		znode = cnext;
672
667
 		cnt += 1;
..
..
@@ -860,6 +855,8 @@
860
855
 	}
861
856
 
862
857
 	while (1) {
858
+		u8 hash[UBIFS_HASH_ARR_SZ];
859
+
863
860
 		cond_resched();
864
861
 
865
862
 		znode = cnext;
..
..
@@ -877,6 +874,7 @@
877
874
 			br->lnum = cpu_to_le32(zbr->lnum);
878
875
 			br->offs = cpu_to_le32(zbr->offs);
879
876
 			br->len = cpu_to_le32(zbr->len);
877
+			ubifs_copy_hash(c, zbr->hash, ubifs_branch_hash(c, br));
880
878
 			if (!zbr->lnum || !zbr->len) {
881
879
 				ubifs_err(c, "bad ref in znode");
882
880
 				ubifs_dump_znode(c, znode);
..
..
@@ -888,6 +886,23 @@
888
886
 		}
889
887
 		len = ubifs_idx_node_sz(c, znode->child_cnt);
890
888
 		ubifs_prepare_node(c, idx, len, 0);
889
+		ubifs_node_calc_hash(c, idx, hash);
890
+
891
+		mutex_lock(&c->tnc_mutex);
892
+
893
+		if (znode->cparent)
894
+			ubifs_copy_hash(c, hash,
895
+					znode->cparent->zbranch[znode->ciip].hash);
896
+
897
+		if (znode->parent) {
898
+			if (!ubifs_zn_obsolete(znode))
899
+				ubifs_copy_hash(c, hash,
900
+					znode->parent->zbranch[znode->iip].hash);
901
+		} else {
902
+			ubifs_copy_hash(c, hash, c->zroot.hash);
903
+		}
904
+
905
+		mutex_unlock(&c->tnc_mutex);
891
906
 
892
907
 		/* Determine the index node position */
893
908
 		if (lnum == -1) {