From: Philipp Reisner <philipp.reisner@linbit.com>
To: linux-kernel@vger.kernel.org, Jens Axboe <axboe@kernel.dk>
Cc: drbd-dev@lists.linbit.com
Subject: [PATCH 09/10] drbd: Remove volume numbers from struct p_header95
Date: Fri, 23 Sep 2011 16:31:24 +0200 [thread overview]
Message-ID: <1316788285-17433-10-git-send-email-philipp.reisner@linbit.com> (raw)
In-Reply-To: <1316788285-17433-1-git-send-email-philipp.reisner@linbit.com>
From: Andreas Gruenbacher <agruen@linbit.com>
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 | 6 +++---
drivers/block/drbd/drbd_receiver.c | 7 ++-----
3 files changed, 6 insertions(+), 9 deletions(-)
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 7d679c5..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 vol_n_len; /* big endian: high byte = volume; remaining 24 bit = length */
+ u32 length;
} __packed;
struct p_header100 {
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 3310986..99b467e 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -717,11 +717,11 @@ static unsigned int prepare_header80(struct p_header80 *h, enum drbd_packet cmd,
return sizeof(struct p_header80);
}
-static unsigned int prepare_header95(struct p_header95 *h, enum drbd_packet cmd, int size, int vnr)
+static unsigned int prepare_header95(struct p_header95 *h, enum drbd_packet cmd, int size)
{
h->magic = cpu_to_be16(DRBD_MAGIC_BIG);
h->command = cpu_to_be16(cmd);
- h->vol_n_len = cpu_to_be32(vnr << 24 | size);
+ h->length = cpu_to_be32(size);
return sizeof(struct p_header95);
}
@@ -742,7 +742,7 @@ static unsigned int prepare_header(struct drbd_tconn *tconn, int vnr,
if (tconn->agreed_pro_version >= 100)
return prepare_header100(buffer, cmd, size, vnr);
else if (tconn->agreed_pro_version >= 95)
- return prepare_header95(buffer, cmd, size, vnr);
+ return prepare_header95(buffer, cmd, size);
else
return prepare_header80(buffer, cmd, size);
}
diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index de09cc1..7539253 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -996,12 +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;
- u32 vol_n_len;
-
pi->cmd = be16_to_cpu(h->command);
- vol_n_len = be32_to_cpu(h->vol_n_len);
- pi->size = vol_n_len & 0x00ffffff;
- pi->vnr = vol_n_len >> 24;
+ 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:[~2011-09-23 14:32 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 ` Philipp Reisner [this message]
2011-09-23 17:28 ` [PATCH 09/10] drbd: Remove volume numbers from struct p_header95 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 ` [PATCH 9/9] drbd: Removed outdated comments and code that envisioned VNRs in header 95 Philipp Reisner
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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