forked from ~ljy/RK356X_SDK_RELEASE
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hc
2023-12-11 d2ccde1c8e90d38cee87a1b0309ad2827f3fd30d 
 kernel/fs/ext4/xattr.c
....@@ -93,6 +93,7 @@
9393 #ifdef CONFIG_EXT4_FS_SECURITY
9494 	[EXT4_XATTR_INDEX_SECURITY]	     = &ext4_xattr_security_handler,
9595 #endif
96
+	[EXT4_XATTR_INDEX_HURD]		     = &ext4_xattr_hurd_handler,
9697 };
9798 
9899 const struct xattr_handler *ext4_xattr_handlers[] = {
....@@ -105,6 +106,7 @@
105106 #ifdef CONFIG_EXT4_FS_SECURITY
106107 	&ext4_xattr_security_handler,
107108 #endif
109
+	&ext4_xattr_hurd_handler,
108110 	NULL
109111 };
110112 
....@@ -245,7 +247,7 @@
245247 					 bh->b_data);
246248 errout:
247249 	if (error)
248
-		__ext4_error_inode(inode, function, line, 0,
250
+		__ext4_error_inode(inode, function, line, 0, -error,
249251 				   "corrupted xattr block %llu",
250252 				   (unsigned long long) bh->b_blocknr);
251253 	else
....@@ -269,7 +271,7 @@
269271 	error = ext4_xattr_check_entries(IFIRST(header), end, IFIRST(header));
270272 errout:
271273 	if (error)
272
-		__ext4_error_inode(inode, function, line, 0,
274
+		__ext4_error_inode(inode, function, line, 0, -error,
273275 				   "corrupted in-inode xattr");
274276 	return error;
275277 }
....@@ -967,55 +969,6 @@
967969 	return credits;
968970 }
969971 
970
-static int ext4_xattr_ensure_credits(handle_t *handle, struct inode *inode,
971
-				     int credits, struct buffer_head *bh,
972
-				     bool dirty, bool block_csum)
973
-{
974
-	int error;
975
-
976
-	if (!ext4_handle_valid(handle))
977
-		return 0;
978
-
979
-	if (handle->h_buffer_credits >= credits)
980
-		return 0;
981
-
982
-	error = ext4_journal_extend(handle, credits - handle->h_buffer_credits);
983
-	if (!error)
984
-		return 0;
985
-	if (error < 0) {
986
-		ext4_warning(inode->i_sb, "Extend journal (error %d)", error);
987
-		return error;
988
-	}
989
-
990
-	if (bh && dirty) {
991
-		if (block_csum)
992
-			ext4_xattr_block_csum_set(inode, bh);
993
-		error = ext4_handle_dirty_metadata(handle, NULL, bh);
994
-		if (error) {
995
-			ext4_warning(inode->i_sb, "Handle metadata (error %d)",
996
-				     error);
997
-			return error;
998
-		}
999
-	}
1000
-
1001
-	error = ext4_journal_restart(handle, credits);
1002
-	if (error) {
1003
-		ext4_warning(inode->i_sb, "Restart journal (error %d)", error);
1004
-		return error;
1005
-	}
1006
-
1007
-	if (bh) {
1008
-		error = ext4_journal_get_write_access(handle, bh);
1009
-		if (error) {
1010
-			ext4_warning(inode->i_sb,
1011
-				     "Get write access failed (error %d)",
1012
-				     error);
1013
-			return error;
1014
-		}
1015
-	}
1016
-	return 0;
1017
-}
1018
-
1019972 static int ext4_xattr_inode_update_ref(handle_t *handle, struct inode *ea_inode,
1020973 				       int ref_change)
1021974 {
....@@ -1028,10 +981,8 @@
1028981 	inode_lock(ea_inode);
1029982 
1030983 	ret = ext4_reserve_inode_write(handle, ea_inode, &iloc);
1031
-	if (ret) {
1032
-		iloc.bh = NULL;
984
+	if (ret)
1033985 		goto out;
1034
-	}
1035986 
1036987 	ref_count = ext4_xattr_inode_get_ref(ea_inode);
1037988 	ref_count += ref_change;
....@@ -1077,12 +1028,10 @@
10771028 	}
10781029 
10791030 	ret = ext4_mark_iloc_dirty(handle, ea_inode, &iloc);
1080
-	iloc.bh = NULL;
10811031 	if (ret)
10821032 		ext4_warning_inode(ea_inode,
10831033 				   "ext4_mark_iloc_dirty() failed ret=%d", ret);
10841034 out:
1085
-	brelse(iloc.bh);
10861035 	inode_unlock(ea_inode);
10871036 	return ret;
10881037 }
....@@ -1153,6 +1102,24 @@
11531102 	return saved_err;
11541103 }
11551104 
1105
+static int ext4_xattr_restart_fn(handle_t *handle, struct inode *inode,
1106
+			struct buffer_head *bh, bool block_csum, bool dirty)
1107
+{
1108
+	int error;
1109
+
1110
+	if (bh && dirty) {
1111
+		if (block_csum)
1112
+			ext4_xattr_block_csum_set(inode, bh);
1113
+		error = ext4_handle_dirty_metadata(handle, NULL, bh);
1114
+		if (error) {
1115
+			ext4_warning(inode->i_sb, "Handle metadata (error %d)",
1116
+				     error);
1117
+			return error;
1118
+		}
1119
+	}
1120
+	return 0;
1121
+}
1122
+
11561123 static void
11571124 ext4_xattr_inode_dec_ref_all(handle_t *handle, struct inode *parent,
11581125 			     struct buffer_head *bh,
....@@ -1189,12 +1156,23 @@
11891156 			continue;
11901157 		}
11911158 
1192
-		err = ext4_xattr_ensure_credits(handle, parent, credits, bh,
1193
-						dirty, block_csum);
1194
-		if (err) {
1159
+		err = ext4_journal_ensure_credits_fn(handle, credits, credits,
1160
+			ext4_free_metadata_revoke_credits(parent->i_sb, 1),
1161
+			ext4_xattr_restart_fn(handle, parent, bh, block_csum,
1162
+					      dirty));
1163
+		if (err < 0) {
11951164 			ext4_warning_inode(ea_inode, "Ensure credits err=%d",
11961165 					   err);
11971166 			continue;
1167
+		}
1168
+		if (err > 0) {
1169
+			err = ext4_journal_get_write_access(handle, bh);
1170
+			if (err) {
1171
+				ext4_warning_inode(ea_inode,
1172
+						"Re-get write access err=%d",
1173
+						err);
1174
+				continue;
1175
+			}
11981176 		}
11991177 
12001178 		err = ext4_xattr_inode_dec_ref(handle, ea_inode);
....@@ -1351,7 +1329,7 @@
13511329 	int blocksize = ea_inode->i_sb->s_blocksize;
13521330 	int max_blocks = (bufsize + blocksize - 1) >> ea_inode->i_blkbits;
13531331 	int csize, wsize = 0;
1354
-	int ret = 0;
1332
+	int ret = 0, ret2 = 0;
13551333 	int retries = 0;
13561334 
13571335 retry:
....@@ -1378,8 +1356,7 @@
13781356 
13791357 	block = 0;
13801358 	while (wsize < bufsize) {
1381
-		if (bh != NULL)
1382
-			brelse(bh);
1359
+		brelse(bh);
13831360 		csize = (bufsize - wsize) > blocksize ? blocksize :
13841361 								bufsize - wsize;
13851362 		bh = ext4_getblk(handle, ea_inode, block, 0);
....@@ -1409,7 +1386,9 @@
14091386 	ext4_update_i_disksize(ea_inode, wsize);
14101387 	inode_unlock(ea_inode);
14111388 
1412
-	ext4_mark_inode_dirty(handle, ea_inode);
1389
+	ret2 = ext4_mark_inode_dirty(handle, ea_inode);
1390
+	if (unlikely(ret2 && !ret))
1391
+		ret = ret2;
14131392 
14141393 out:
14151394 	brelse(bh);
....@@ -1483,7 +1462,7 @@
14831462 	WARN_ON_ONCE(ext4_handle_valid(journal_current_handle()) &&
14841463 		     !(current->flags & PF_MEMALLOC_NOFS));
14851464 
1486
-	ea_data = ext4_kvmalloc(value_len, GFP_NOFS);
1465
+	ea_data = kvmalloc(value_len, GFP_KERNEL);
14871466 	if (!ea_data) {
14881467 		mb_cache_entry_put(ea_inode_cache, ce);
14891468 		return NULL;
....@@ -2188,8 +2167,9 @@
21882167 	struct ext4_inode *raw_inode;
21892168 	int error;
21902169 
2191
-	if (EXT4_I(inode)->i_extra_isize == 0)
2170
+	if (!EXT4_INODE_HAS_XATTR_SPACE(inode))
21922171 		return 0;
2172
+
21932173 	raw_inode = ext4_raw_inode(&is->iloc);
21942174 	header = IHDR(inode, raw_inode);
21952175 	is->s.base = is->s.first = IFIRST(header);
....@@ -2217,8 +2197,9 @@
22172197 	struct ext4_xattr_search *s = &is->s;
22182198 	int error;
22192199 
2220
-	if (EXT4_I(inode)->i_extra_isize == 0)
2200
+	if (!EXT4_INODE_HAS_XATTR_SPACE(inode))
22212201 		return -ENOSPC;
2202
+
22222203 	error = ext4_xattr_set_entry(i, s, handle, inode, false /* is_block */);
22232204 	if (error)
22242205 		return error;
....@@ -2345,7 +2326,7 @@
23452326 						   flags & XATTR_CREATE);
23462327 		brelse(bh);
23472328 
2348
-		if (!ext4_handle_has_enough_credits(handle, credits)) {
2329
+		if (jbd2_handle_buffer_credits(handle) < credits) {
23492330 			error = -ENOSPC;
23502331 			goto cleanup;
23512332 		}
....@@ -2444,6 +2425,7 @@
24442425 		if (IS_SYNC(inode))
24452426 			ext4_handle_sync(handle);
24462427 	}
2428
+	ext4_fc_mark_ineligible(inode->i_sb, EXT4_FC_REASON_XATTR);
24472429 
24482430 cleanup:
24492431 	brelse(is.iloc.bh);
....@@ -2521,6 +2503,7 @@
25212503 		if (error == 0)
25222504 			error = error2;
25232505 	}
2506
+	ext4_fc_mark_ineligible(inode->i_sb, EXT4_FC_REASON_XATTR);
25242507 
25252508 	return error;
25262509 }
....@@ -2873,11 +2856,9 @@
28732856 	struct inode *ea_inode;
28742857 	int error;
28752858 
2876
-	error = ext4_xattr_ensure_credits(handle, inode, extra_credits,
2877
-					  NULL /* bh */,
2878
-					  false /* dirty */,
2879
-					  false /* block_csum */);
2880
-	if (error) {
2859
+	error = ext4_journal_ensure_credits(handle, extra_credits,
2860
+			ext4_free_metadata_revoke_credits(inode->i_sb, 1));
2861
+	if (error < 0) {
28812862 		EXT4_ERROR_INODE(inode, "ensure credits (error %d)", error);
28822863 		goto cleanup;
28832864 	}
....@@ -2912,9 +2893,11 @@
29122893 		bh = ext4_sb_bread(inode->i_sb, EXT4_I(inode)->i_file_acl, REQ_PRIO);
29132894 		if (IS_ERR(bh)) {
29142895 			error = PTR_ERR(bh);
2915
-			if (error == -EIO)
2916
-				EXT4_ERROR_INODE(inode, "block %llu read error",
2917
-						 EXT4_I(inode)->i_file_acl);
2896
+			if (error == -EIO) {
2897
+				EXT4_ERROR_INODE_ERR(inode, EIO,
2898
+						     "block %llu read error",
2899
+						     EXT4_I(inode)->i_file_acl);
2900
+			}
29182901 			bh = NULL;
29192902 			goto cleanup;
29202903 		}
....@@ -2953,6 +2936,7 @@
29532936 					 error);
29542937 			goto cleanup;
29552938 		}
2939
+		ext4_fc_mark_ineligible(inode->i_sb, EXT4_FC_REASON_XATTR);
29562940 	}
29572941 	error = 0;
29582942 cleanup: