From: Philipp Reisner <philipp.reisner@linbit.com>
To: Kyle Moffett <kyle@moffetthome.net>,
linux-kernel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>
Cc: drbd-dev@lists.linbit.com
Subject: [PATCH 9/9] drbd: Removed outdated comments and code that envisioned VNRs in header 95
Date: Wed, 28 Sep 2011 11:21:38 +0200 [thread overview]
Message-ID: <1317201698-7776-1-git-send-email-philipp.reisner@linbit.com> (raw)
In-Reply-To: <201109281120.07349.philipp.reisner@linbit.com>
From: Andreas Gruenbacher <agruen@linbit.com>
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>
---
drivers/block/drbd/drbd_int.h | 2 +-
drivers/block/drbd/drbd_main.c | 2 +-
drivers/block/drbd/drbd_receiver.c | 5 ++---
3 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 2fcf370..8f67093 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -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 {
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 2c75a03..6afcfab 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -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);
}
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 80bbc55..7539253 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -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;
--
1.7.4.1
next prev parent reply other threads:[~2011-09-28 9:21 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-23 14:31 [RFC 00/10] drbd: part 10 of adding multiple volume support to drbd Philipp Reisner
2011-09-23 14:31 ` [PATCH 01/10] drbd: drbd_send_ping(), drbd_send_ping(): Return 0 upon success and an error code otherwise Philipp Reisner
2011-09-23 14:31 ` [PATCH 02/10] drbd: Introduce new primitives for sending commands Philipp Reisner
2011-09-23 14:31 ` [PATCH 03/10] drbd: Introduce drbd_header_size() Philipp Reisner
2011-09-23 14:31 ` [PATCH 04/10] drbd: Replace and remove old primitives Philipp Reisner
2011-09-23 17:33 ` Kyle Moffett
2011-09-27 9:34 ` Philipp Reisner
2011-09-23 14:31 ` [PATCH 05/10] drbd: Remove now-unused int_dig_out buffer Philipp Reisner
2011-09-23 14:31 ` [PATCH 06/10] drbd: Remove some fixed header size assumptions Philipp Reisner
2011-09-23 14:31 ` [PATCH 07/10] drbd: Remove headers from on-the-wire data structures (struct p_*) Philipp Reisner
2011-09-23 17:38 ` Kyle Moffett
2011-09-27 9:34 ` Philipp Reisner
2011-09-23 14:31 ` [PATCH 08/10] drbd: Introduce protocol version 100 headers Philipp Reisner
2011-09-23 17:42 ` Kyle Moffett
2011-09-27 9:34 ` Philipp Reisner
2011-09-23 14:31 ` [PATCH 09/10] drbd: Remove volume numbers from struct p_header95 Philipp Reisner
2011-09-23 17:28 ` Kyle Moffett
2011-09-27 9:34 ` Philipp Reisner
2011-09-28 4:26 ` Kyle Moffett
2011-09-28 9:20 ` Philipp Reisner
2011-09-28 9:21 ` Philipp Reisner [this message]
2011-09-23 14:31 ` [PATCH 10/10] drbd: For protocol versions before 100, use mixed header versions Philipp Reisner
2011-09-23 17:24 ` Kyle Moffett
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