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drbd: Removed outdated comments and code that envisioned VNRs in header 95

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Since have now header 100, that has space for 16 bit volume numbers,
the high byte of the length in header 95 is no longer reserved for
8 bit volume numbers.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
This commit is contained in:
Andreas Gruenbacher 2011-03-22 13:17:47 +01:00 committed by Philipp Reisner
parent 0c8e36d9b8
commit b55d84ba17
3 changed files with 4 additions and 5 deletions
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2
drivers/block/drbd/drbd_int.h
View File

@ -304,7 +304,7 @@ struct p_header80 {
struct p_header95 {
u16 magic; /* use DRBD_MAGIC_BIG here */
u16 command;
u32 length; /* Use only 24 bits of that. Ignore the highest 8 bit. */
u32 length;
} __packed;
struct p_header100 {

2
drivers/block/drbd/drbd_main.c
View File

@ -721,7 +721,7 @@ static unsigned int prepare_header95(struct p_header95 *h, enum drbd_packet cmd,
{
h->magic = cpu_to_be16(DRBD_MAGIC_BIG);
h->command = cpu_to_be16(cmd);
h->length = cpu_to_be32(size);
h->length = cpu_to_be32(size);
return sizeof(struct p_header95);
}

5
drivers/block/drbd/drbd_receiver.c
View File

@ -996,10 +996,9 @@ static int decode_header(struct drbd_tconn *tconn, void *header, struct packet_i
} else if (header_size == sizeof(struct p_header95) &&
*(__be16 *)header == cpu_to_be16(DRBD_MAGIC_BIG)) {
struct p_header95 *h = header;
pi->cmd = be16_to_cpu(h->command);
pi->size = be32_to_cpu(h->length) & 0x00ffffff;
pi->vnr = 0;
pi->size = be32_to_cpu(h->length);
pi->vnr = 0;
} else if (header_size == sizeof(struct p_header80) &&
*(__be32 *)header == cpu_to_be32(DRBD_MAGIC)) {
struct p_header80 *h = header;