diff options
Diffstat (limited to 'fs/ubifs/tnc.c')
-rw-r--r-- | fs/ubifs/tnc.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c index f7e36f545527..fa28a84c6a1b 100644 --- a/fs/ubifs/tnc.c +++ b/fs/ubifs/tnc.c | |||
@@ -443,6 +443,11 @@ static int tnc_read_node_nm(struct ubifs_info *c, struct ubifs_zbranch *zbr, | |||
443 | * This function performs that same function as ubifs_read_node except that | 443 | * This function performs that same function as ubifs_read_node except that |
444 | * it does not require that there is actually a node present and instead | 444 | * it does not require that there is actually a node present and instead |
445 | * the return code indicates if a node was read. | 445 | * the return code indicates if a node was read. |
446 | * | ||
447 | * Note, this function does not check CRC of data nodes if @c->no_chk_data_crc | ||
448 | * is true (it is controlled by corresponding mount option). However, if | ||
449 | * @c->always_chk_crc is true, @c->no_chk_data_crc is ignored and CRC is always | ||
450 | * checked. | ||
446 | */ | 451 | */ |
447 | static int try_read_node(const struct ubifs_info *c, void *buf, int type, | 452 | static int try_read_node(const struct ubifs_info *c, void *buf, int type, |
448 | int len, int lnum, int offs) | 453 | int len, int lnum, int offs) |
@@ -470,9 +475,8 @@ static int try_read_node(const struct ubifs_info *c, void *buf, int type, | |||
470 | if (node_len != len) | 475 | if (node_len != len) |
471 | return 0; | 476 | return 0; |
472 | 477 | ||
473 | if (type == UBIFS_DATA_NODE && !c->always_chk_crc) | 478 | if (type == UBIFS_DATA_NODE && !c->always_chk_crc && c->no_chk_data_crc) |
474 | if (c->no_chk_data_crc) | 479 | return 1; |
475 | return 0; | ||
476 | 480 | ||
477 | crc = crc32(UBIFS_CRC32_INIT, buf + 8, node_len - 8); | 481 | crc = crc32(UBIFS_CRC32_INIT, buf + 8, node_len - 8); |
478 | node_crc = le32_to_cpu(ch->crc); | 482 | node_crc = le32_to_cpu(ch->crc); |
@@ -1506,7 +1510,7 @@ out: | |||
1506 | * | 1510 | * |
1507 | * Note, if the bulk-read buffer length (@bu->buf_len) is known, this function | 1511 | * Note, if the bulk-read buffer length (@bu->buf_len) is known, this function |
1508 | * makes sure bulk-read nodes fit the buffer. Otherwise, this function prepares | 1512 | * makes sure bulk-read nodes fit the buffer. Otherwise, this function prepares |
1509 | * maxumum possible amount of nodes for bulk-read. | 1513 | * maximum possible amount of nodes for bulk-read. |
1510 | */ | 1514 | */ |
1511 | int ubifs_tnc_get_bu_keys(struct ubifs_info *c, struct bu_info *bu) | 1515 | int ubifs_tnc_get_bu_keys(struct ubifs_info *c, struct bu_info *bu) |
1512 | { | 1516 | { |