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Date: Thu, 7 Feb 2008 00:09:06 -0600
From: David Teigland <teigland@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Al Viro <viro@...iv.linux.org.uk>
Subject: [PATCH 03/16] dlm: do not byteswap rcom_lock
From: Al Viro <viro@...iv.linux.org.uk>
Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
Signed-off-by: David Teigland <teigland@...hat.com>
---
fs/dlm/dlm_internal.h | 22 +++++++++++-----------
fs/dlm/lock.c | 34 +++++++++++++++++++---------------
fs/dlm/rcom.c | 14 +++++++-------
fs/dlm/util.c | 45 ++-------------------------------------------
4 files changed, 39 insertions(+), 76 deletions(-)
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index 65499ce..e73b988 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -416,21 +416,21 @@ struct rcom_config {
};
struct rcom_lock {
- uint32_t rl_ownpid;
- uint32_t rl_lkid;
- uint32_t rl_remid;
- uint32_t rl_parent_lkid;
- uint32_t rl_parent_remid;
- uint32_t rl_exflags;
- uint32_t rl_flags;
- uint32_t rl_lvbseq;
- int rl_result;
+ __le32 rl_ownpid;
+ __le32 rl_lkid;
+ __le32 rl_remid;
+ __le32 rl_parent_lkid;
+ __le32 rl_parent_remid;
+ __le32 rl_exflags;
+ __le32 rl_flags;
+ __le32 rl_lvbseq;
+ __le32 rl_result;
int8_t rl_rqmode;
int8_t rl_grmode;
int8_t rl_status;
int8_t rl_asts;
- uint16_t rl_wait_type;
- uint16_t rl_namelen;
+ __le16 rl_wait_type;
+ __le16 rl_namelen;
char rl_name[DLM_RESNAME_MAXLEN];
char rl_lvb[0];
};
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 2a28048..75176b5 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -4273,12 +4273,12 @@ static int receive_rcom_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
int lvblen;
lkb->lkb_nodeid = rc->rc_header.h_nodeid;
- lkb->lkb_ownpid = rl->rl_ownpid;
- lkb->lkb_remid = rl->rl_lkid;
- lkb->lkb_exflags = rl->rl_exflags;
- lkb->lkb_flags = rl->rl_flags & 0x0000FFFF;
+ lkb->lkb_ownpid = le32_to_cpu(rl->rl_ownpid);
+ lkb->lkb_remid = le32_to_cpu(rl->rl_lkid);
+ lkb->lkb_exflags = le32_to_cpu(rl->rl_exflags);
+ lkb->lkb_flags = le32_to_cpu(rl->rl_flags) & 0x0000FFFF;
lkb->lkb_flags |= DLM_IFL_MSTCPY;
- lkb->lkb_lvbseq = rl->rl_lvbseq;
+ lkb->lkb_lvbseq = le32_to_cpu(rl->rl_lvbseq);
lkb->lkb_rqmode = rl->rl_rqmode;
lkb->lkb_grmode = rl->rl_grmode;
/* don't set lkb_status because add_lkb wants to itself */
@@ -4299,7 +4299,8 @@ static int receive_rcom_lock_args(struct dlm_ls *ls, struct dlm_lkb *lkb,
The real granted mode of these converting locks cannot be determined
until all locks have been rebuilt on the rsb (recover_conversion) */
- if (rl->rl_wait_type == DLM_MSG_CONVERT && middle_conversion(lkb)) {
+ if (rl->rl_wait_type == cpu_to_le16(DLM_MSG_CONVERT) &&
+ middle_conversion(lkb)) {
rl->rl_status = DLM_LKSTS_CONVERT;
lkb->lkb_grmode = DLM_LOCK_IV;
rsb_set_flag(r, RSB_RECOVER_CONVERT);
@@ -4326,13 +4327,14 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
goto out;
}
- error = find_rsb(ls, rl->rl_name, rl->rl_namelen, R_MASTER, &r);
+ error = find_rsb(ls, rl->rl_name, le16_to_cpu(rl->rl_namelen),
+ R_MASTER, &r);
if (error)
goto out;
lock_rsb(r);
- lkb = search_remid(r, rc->rc_header.h_nodeid, rl->rl_lkid);
+ lkb = search_remid(r, rc->rc_header.h_nodeid, le32_to_cpu(rl->rl_lkid));
if (lkb) {
error = -EEXIST;
goto out_remid;
@@ -4355,15 +4357,16 @@ int dlm_recover_master_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
out_remid:
/* this is the new value returned to the lock holder for
saving in its process-copy lkb */
- rl->rl_remid = lkb->lkb_id;
+ rl->rl_remid = cpu_to_le32(lkb->lkb_id);
out_unlock:
unlock_rsb(r);
put_rsb(r);
out:
if (error)
- log_debug(ls, "recover_master_copy %d %x", error, rl->rl_lkid);
- rl->rl_result = error;
+ log_debug(ls, "recover_master_copy %d %x", error,
+ le32_to_cpu(rl->rl_lkid));
+ rl->rl_result = cpu_to_le32(error);
return error;
}
@@ -4374,15 +4377,16 @@ int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
struct dlm_lkb *lkb;
int error;
- error = find_lkb(ls, rl->rl_lkid, &lkb);
+ error = find_lkb(ls, le32_to_cpu(rl->rl_lkid), &lkb);
if (error) {
- log_error(ls, "recover_process_copy no lkid %x", rl->rl_lkid);
+ log_error(ls, "recover_process_copy no lkid %x",
+ le32_to_cpu(rl->rl_lkid));
return error;
}
DLM_ASSERT(is_process_copy(lkb), dlm_print_lkb(lkb););
- error = rl->rl_result;
+ error = le32_to_cpu(rl->rl_result);
r = lkb->lkb_resource;
hold_rsb(r);
@@ -4401,7 +4405,7 @@ int dlm_recover_process_copy(struct dlm_ls *ls, struct dlm_rcom *rc)
log_debug(ls, "master copy exists %x", lkb->lkb_id);
/* fall through */
case 0:
- lkb->lkb_remid = rl->rl_remid;
+ lkb->lkb_remid = le32_to_cpu(rl->rl_remid);
break;
default:
log_error(ls, "dlm_recover_process_copy unknown error %d %x",
diff --git a/fs/dlm/rcom.c b/fs/dlm/rcom.c
index 026824c..86c1ab9 100644
--- a/fs/dlm/rcom.c
+++ b/fs/dlm/rcom.c
@@ -299,22 +299,22 @@ static void pack_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb,
{
memset(rl, 0, sizeof(*rl));
- rl->rl_ownpid = lkb->lkb_ownpid;
- rl->rl_lkid = lkb->lkb_id;
- rl->rl_exflags = lkb->lkb_exflags;
- rl->rl_flags = lkb->lkb_flags;
- rl->rl_lvbseq = lkb->lkb_lvbseq;
+ rl->rl_ownpid = cpu_to_le32(lkb->lkb_ownpid);
+ rl->rl_lkid = cpu_to_le32(lkb->lkb_id);
+ rl->rl_exflags = cpu_to_le32(lkb->lkb_exflags);
+ rl->rl_flags = cpu_to_le32(lkb->lkb_flags);
+ rl->rl_lvbseq = cpu_to_le32(lkb->lkb_lvbseq);
rl->rl_rqmode = lkb->lkb_rqmode;
rl->rl_grmode = lkb->lkb_grmode;
rl->rl_status = lkb->lkb_status;
- rl->rl_wait_type = lkb->lkb_wait_type;
+ rl->rl_wait_type = cpu_to_le16(lkb->lkb_wait_type);
if (lkb->lkb_bastaddr)
rl->rl_asts |= AST_BAST;
if (lkb->lkb_astaddr)
rl->rl_asts |= AST_COMP;
- rl->rl_namelen = r->res_length;
+ rl->rl_namelen = cpu_to_le16(r->res_length);
memcpy(rl->rl_name, r->res_name, r->res_length);
/* FIXME: might we have an lvb without DLM_LKF_VALBLK set ?
diff --git a/fs/dlm/util.c b/fs/dlm/util.c
index 4d9c1f4..d3ed6da 100644
--- a/fs/dlm/util.c
+++ b/fs/dlm/util.c
@@ -131,36 +131,6 @@ void dlm_message_in(struct dlm_message *ms)
ms->m_result = from_dlm_errno(le32_to_cpu(ms->m_result));
}
-static void rcom_lock_out(struct rcom_lock *rl)
-{
- rl->rl_ownpid = cpu_to_le32(rl->rl_ownpid);
- rl->rl_lkid = cpu_to_le32(rl->rl_lkid);
- rl->rl_remid = cpu_to_le32(rl->rl_remid);
- rl->rl_parent_lkid = cpu_to_le32(rl->rl_parent_lkid);
- rl->rl_parent_remid = cpu_to_le32(rl->rl_parent_remid);
- rl->rl_exflags = cpu_to_le32(rl->rl_exflags);
- rl->rl_flags = cpu_to_le32(rl->rl_flags);
- rl->rl_lvbseq = cpu_to_le32(rl->rl_lvbseq);
- rl->rl_result = cpu_to_le32(rl->rl_result);
- rl->rl_wait_type = cpu_to_le16(rl->rl_wait_type);
- rl->rl_namelen = cpu_to_le16(rl->rl_namelen);
-}
-
-static void rcom_lock_in(struct rcom_lock *rl)
-{
- rl->rl_ownpid = le32_to_cpu(rl->rl_ownpid);
- rl->rl_lkid = le32_to_cpu(rl->rl_lkid);
- rl->rl_remid = le32_to_cpu(rl->rl_remid);
- rl->rl_parent_lkid = le32_to_cpu(rl->rl_parent_lkid);
- rl->rl_parent_remid = le32_to_cpu(rl->rl_parent_remid);
- rl->rl_exflags = le32_to_cpu(rl->rl_exflags);
- rl->rl_flags = le32_to_cpu(rl->rl_flags);
- rl->rl_lvbseq = le32_to_cpu(rl->rl_lvbseq);
- rl->rl_result = le32_to_cpu(rl->rl_result);
- rl->rl_wait_type = le16_to_cpu(rl->rl_wait_type);
- rl->rl_namelen = le16_to_cpu(rl->rl_namelen);
-}
-
static void rcom_config_out(struct rcom_config *rf)
{
rf->rf_lvblen = cpu_to_le32(rf->rf_lvblen);
@@ -185,17 +155,12 @@ void dlm_rcom_out(struct dlm_rcom *rc)
rc->rc_seq = cpu_to_le64(rc->rc_seq);
rc->rc_seq_reply = cpu_to_le64(rc->rc_seq_reply);
- if ((type == DLM_RCOM_LOCK) || (type == DLM_RCOM_LOCK_REPLY))
- rcom_lock_out((struct rcom_lock *) rc->rc_buf);
-
- else if (type == DLM_RCOM_STATUS_REPLY)
+ if (type == DLM_RCOM_STATUS_REPLY)
rcom_config_out((struct rcom_config *) rc->rc_buf);
}
void dlm_rcom_in(struct dlm_rcom *rc)
{
- int type;
-
header_in(&rc->rc_header);
rc->rc_type = le32_to_cpu(rc->rc_type);
@@ -204,12 +169,6 @@ void dlm_rcom_in(struct dlm_rcom *rc)
rc->rc_seq = le64_to_cpu(rc->rc_seq);
rc->rc_seq_reply = le64_to_cpu(rc->rc_seq_reply);
- type = rc->rc_type;
-
- if ((type == DLM_RCOM_LOCK) || (type == DLM_RCOM_LOCK_REPLY))
- rcom_lock_in((struct rcom_lock *) rc->rc_buf);
-
- else if (type == DLM_RCOM_STATUS_REPLY)
+ if (rc->rc_type == DLM_RCOM_STATUS_REPLY)
rcom_config_in((struct rcom_config *) rc->rc_buf);
}
-
--
1.5.3.3
--
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