From: yangsheng <yangsheng>
Date: Fri, 7 Nov 2008 04:39:29 +0000 (+0000)
Subject: Branch HEAD
X-Git-Tag: v1_9_100~20
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=62499626b81f83f9e2ceceaa11d9b33861581cb6;hp=0614a7d7a5f59f87d22df5ea7c268bd18c0a3a8e

Branch HEAD
b=17357

Back the changes.
---

diff --git a/lustre/include/lustre/lustre_idl.h b/lustre/include/lustre/lustre_idl.h
index c676d4d..ff040ba 100644
--- a/lustre/include/lustre/lustre_idl.h
+++ b/lustre/include/lustre/lustre_idl.h
@@ -593,9 +593,6 @@ extern void lustre_swab_ptlrpc_body(struct ptlrpc_body *pb);
 #define DLM_LOCKREPLY_OFF               1 /* lockrep offset */
 #define DLM_REPLY_REC_OFF               2 /* reply record offset */
 
-/* only use in req->rq_{req,rep}_swab_mask */
-#define MSG_PTLRPC_HEADER_OFF           31
-
 /* Flags that are operation-specific go in the top 16 bits. */
 #define MSG_OP_FLAG_MASK   0xffff0000
 #define MSG_OP_FLAG_SHIFT  16
diff --git a/lustre/include/lustre_net.h b/lustre/include/lustre_net.h
index ff6a122..363a0b8 100644
--- a/lustre/include/lustre_net.h
+++ b/lustre/include/lustre_net.h
@@ -504,16 +504,6 @@ static inline int lustre_rep_swabbed(struct ptlrpc_request *req, int index)
         return req->rq_rep_swab_mask & (1 << index);
 }
 
-static inline int lustre_req_need_swab(struct ptlrpc_request *req)
-{
-        return req->rq_req_swab_mask & (1 << MSG_PTLRPC_HEADER_OFF);
-}
- 
-static inline int lustre_rep_need_swab(struct ptlrpc_request *req)
-{
-        return req->rq_rep_swab_mask & (1 << MSG_PTLRPC_HEADER_OFF);
-}
-
 static inline const char *
 ptlrpc_rqphase2str(const struct ptlrpc_request *req)
 {
@@ -1000,8 +990,7 @@ int ptlrpc_import_recovery_state_machine(struct obd_import *imp);
 
 /* ptlrpc/pack_generic.c */
 int ptlrpc_reconnect_import(struct obd_import *imp);
-int ptlrpc_req_need_swab(struct ptlrpc_request *req, int inout, int index);
-void ptlrpc_req_set_swabbed(struct ptlrpc_request *req, int inout, int index);
+int lustre_msg_swabbed(struct lustre_msg *msg);
 int lustre_msg_check_version(struct lustre_msg *msg, __u32 version);
 void lustre_init_msg_v2(struct lustre_msg_v2 *msg, int count, __u32 *lens,
                         char **bufs);
diff --git a/lustre/include/obd.h b/lustre/include/obd.h
index 4252e5f..b42e2c3 100644
--- a/lustre/include/obd.h
+++ b/lustre/include/obd.h
@@ -1595,7 +1595,7 @@ static inline const struct lsm_operations *lsm_op_find(int magic)
         case LOV_MAGIC_V3:
                return &lsm_v3_ops;
         default:
-               CERROR("Cannot recognize lsm_magic %x\n", magic);
+               CERROR("Cannot recognize lsm_magic %d\n", magic);
                return NULL;
         }
 }
diff --git a/lustre/osc/osc_request.c b/lustre/osc/osc_request.c
index 38c6718..a00185f 100644
--- a/lustre/osc/osc_request.c
+++ b/lustre/osc/osc_request.c
@@ -950,7 +950,7 @@ static int check_write_rcs(struct ptlrpc_request *req,
                 CDEBUG(D_INFO, "Missing/short RC vector on BRW_WRITE reply\n");
                 return(-EPROTO);
         }
-        if (lustre_rep_need_swab(req))
+        if (lustre_msg_swabbed(req->rq_repmsg))
                 for (i = 0; i < niocount; i++)
                         __swab32s(&remote_rcs[i]);
 
diff --git a/lustre/ost/ost_handler.c b/lustre/ost/ost_handler.c
index 2618d84..abb4f66 100644
--- a/lustre/ost/ost_handler.c
+++ b/lustre/ost/ost_handler.c
@@ -627,8 +627,7 @@ static int ost_brw_read(struct ptlrpc_request *req, struct obd_trans_info *oti)
                 CERROR("Missing/short niobuf\n");
                 GOTO(out, rc = -EFAULT);
         }
-
-        if (lustre_req_need_swab(req)) { /* swab remaining niobufs */
+        if (lustre_msg_swabbed(req->rq_reqmsg)) { /* swab remaining niobufs */
                 for (i = 1; i < niocount; i++)
                         lustre_swab_niobuf_remote (&remote_nb[i]);
         }
@@ -867,7 +866,7 @@ static int ost_brw_write(struct ptlrpc_request *req, struct obd_trans_info *oti)
         if (exp->exp_failed)
                 GOTO(out, rc = -ENOTCONN);
 
-        swab = lustre_req_need_swab(req);
+        swab = lustre_msg_swabbed(req->rq_reqmsg);
         body = lustre_swab_reqbuf(req, REQ_REC_OFF, sizeof(*body),
                                   lustre_swab_ost_body);
         if (body == NULL) {
diff --git a/lustre/ptlrpc/client.c b/lustre/ptlrpc/client.c
index 9385600..de5f94b 100644
--- a/lustre/ptlrpc/client.c
+++ b/lustre/ptlrpc/client.c
@@ -284,20 +284,16 @@ static int unpack_reply(struct ptlrpc_request *req)
         req->rq_rep_swab_mask = 0;
 
         rc = lustre_unpack_msg(req->rq_repmsg, req->rq_replen);
-        if (rc < 0) {
+        if (rc) {
                 DEBUG_REQ(D_ERROR, req, "unpack_rep failed: %d", rc);
                 return(-EPROTO);
         }
 
-        if (rc > 0)
-                lustre_set_rep_swabbed(req, MSG_PTLRPC_HEADER_OFF);
-
         rc = lustre_unpack_rep_ptlrpc_body(req, MSG_PTLRPC_BODY_OFF);
         if (rc) {
                 DEBUG_REQ(D_ERROR, req, "unpack ptlrpc body failed: %d", rc);
                 return(-EPROTO);
         }
-
         return 0;
 }
 
diff --git a/lustre/ptlrpc/layout.c b/lustre/ptlrpc/layout.c
index 531ef12..562335c 100644
--- a/lustre/ptlrpc/layout.c
+++ b/lustre/ptlrpc/layout.c
@@ -1351,7 +1351,7 @@ static int __req_capsule_offset(const struct req_capsule *pill,
                             pill->rc_fmt->rf_name,
                             field->rmf_name, offset, loc);
         offset --;
-        LASSERT(0 <= offset && offset < REQ_MAX_FIELD_NR);
+        LASSERT(0 <= offset && offset < (sizeof(pill->rc_swabbed) << 3));
         return offset;
 }
 
@@ -1365,7 +1365,6 @@ static void *__req_capsule_get(struct req_capsule *pill,
         void                    *value;
         int                      len;
         int                      offset;
-        int                      inout = loc == RCL_CLIENT;
 
         void *(*getter)(struct lustre_msg *m, int n, int minlen);
 
@@ -1396,12 +1395,12 @@ static void *__req_capsule_get(struct req_capsule *pill,
         value = getter(msg, offset, len);
 
         swabber = swabber ?: field->rmf_swabber;
-        if (ptlrpc_req_need_swab(pill->rc_req, inout, offset) &&
-            swabber != NULL && value != NULL) {
+        if (!(pill->rc_swabbed & (1 << offset)) && loc != pill->rc_loc &&
+            swabber != NULL && value != NULL &&
+            lustre_msg_swabbed(msg)) {
                 swabber(value);
-                ptlrpc_req_set_swabbed(pill->rc_req, inout, offset);
+                pill->rc_swabbed |= (1 << offset);
         }
-
         if (value == NULL) {
                 DEBUG_REQ(D_ERROR, pill->rc_req,
                           "Wrong buffer for field `%s' (%d of %d) "
@@ -1545,6 +1544,7 @@ void req_capsule_extend(struct req_capsule *pill, const struct req_format *fmt)
                         FMT_FIELD(old, i, j)->rmf_size);
         }
         /* last field should be returned to the unswabbed state */
+        pill->rc_swabbed &= ~(__u32)(1 << j);
         pill->rc_fmt = fmt;
 }
 EXPORT_SYMBOL(req_capsule_extend);
diff --git a/lustre/ptlrpc/pack_generic.c b/lustre/ptlrpc/pack_generic.c
index 028a1ba..4247568 100644
--- a/lustre/ptlrpc/pack_generic.c
+++ b/lustre/ptlrpc/pack_generic.c
@@ -72,55 +72,11 @@ int lustre_msg_hdr_size(__u32 magic, int count)
 }
 EXPORT_SYMBOL(lustre_msg_hdr_size);
 
-int lustre_msg_need_swab(struct lustre_msg *msg)
+int lustre_msg_swabbed(struct lustre_msg *msg)
 {
         return (msg->lm_magic == LUSTRE_MSG_MAGIC_V2_SWABBED);
 }
 
-/**
- * \ret 0 - if need swabbed
- * \ret 1 - otherwise
- */
-static int ptlrpc_reqbuf_need_swab(struct ptlrpc_request *req, int index)
-{
-        return (lustre_req_need_swab(req) && !lustre_req_swabbed(req, index));
-}
-
-/**
- *  \ret 0 - if need swabbed
- *  \ret 1 - otherwise
- */
-static int ptlrpc_repbuf_need_swab(struct ptlrpc_request *req, int index)
-{
-        return (lustre_rep_need_swab(req) && !lustre_rep_swabbed(req, index));
-}
-
-/**
- * ptlrpc_req_need_swab - check the @req if need swab.
- * @req   - ptlrpc_request need to look at.
- * @inout - =1 reqbuf, =0 repbuf.
- * @index - message offset
- *
- * \ret 0 - swabbed
- * \ret 1 - need swab
- */
-int ptlrpc_req_need_swab(struct ptlrpc_request *req, int inout, int index)
-{
-        if (inout)
-                return ptlrpc_reqbuf_need_swab(req, index);
-        else
-                return ptlrpc_repbuf_need_swab(req, index);
-}
-
-void ptlrpc_req_set_swabbed(struct ptlrpc_request *req, int inout, int index)
-{
-       if(inout)
-                lustre_set_req_swabbed(req, index);
-        else
-                lustre_set_rep_swabbed(req, index);
-}
-
-
 static inline int
 lustre_msg_check_version_v2(struct lustre_msg_v2 *msg, __u32 version)
 {
@@ -132,9 +88,11 @@ int lustre_msg_check_version(struct lustre_msg *msg, __u32 version)
 {
         switch (msg->lm_magic) {
         case LUSTRE_MSG_MAGIC_V1:
+        case LUSTRE_MSG_MAGIC_V1_SWABBED:
                 CERROR("msg v1 not supported - please upgrade you system\n");
                 return -EINVAL; 
         case LUSTRE_MSG_MAGIC_V2:
+        case LUSTRE_MSG_MAGIC_V2_SWABBED:
                 return lustre_msg_check_version_v2(msg, version);
         default:
                 CERROR("incorrect message magic: %08x\n", msg->lm_magic);
@@ -539,9 +497,9 @@ static int lustre_unpack_msg_v2(struct lustre_msg_v2 *m, int len)
                 return -EINVAL;
         }
 
-        flipped = lustre_msg_need_swab(m);
+        flipped = lustre_msg_swabbed(m);
+
         if (flipped) {
-                __swab32s(&m->lm_magic);
                 __swab32s(&m->lm_bufcount);
                 __swab32s(&m->lm_secflvr);
                 __swab32s(&m->lm_repsize);
@@ -558,7 +516,7 @@ static int lustre_unpack_msg_v2(struct lustre_msg_v2 *m, int len)
                         len, m->lm_bufcount);
                 return -EINVAL;
         }
-
+        
         for (i = 0; i < m->lm_bufcount; i++) {
                 if (flipped)
                         __swab32s(&m->lm_buflens[i]);
@@ -573,7 +531,7 @@ static int lustre_unpack_msg_v2(struct lustre_msg_v2 *m, int len)
                 return -EINVAL;
         }
 
-        return flipped;
+        return 0;
 }
 
 int lustre_unpack_msg(struct lustre_msg *m, int len)
@@ -609,36 +567,34 @@ int lustre_unpack_msg(struct lustre_msg *m, int len)
         RETURN(rc);
 }
 
-static inline int lustre_unpack_ptlrpc_body_v2(struct ptlrpc_request *req,
-                                               int inout,
+static inline int lustre_unpack_ptlrpc_body_v2(struct lustre_msg_v2 *m,
                                                int offset)
 {
         struct ptlrpc_body *pb;
-        struct lustre_msg_v2 *m = inout ? req->rq_reqmsg : req->rq_repmsg;
 
         pb = lustre_msg_buf_v2(m, offset, sizeof(*pb));
         if (!pb) {
                 CERROR("error unpacking ptlrpc body\n");
                 return -EFAULT;
         }
-        if (ptlrpc_req_need_swab(req, inout, offset)) {
+        if (lustre_msg_swabbed(m))
                 lustre_swab_ptlrpc_body(pb);
-                ptlrpc_req_set_swabbed(req, inout, offset);
-        }
 
         if ((pb->pb_version & ~LUSTRE_VERSION_MASK) != PTLRPC_MSG_VERSION) {
                  CERROR("wrong lustre_msg version %08x\n", pb->pb_version);
                  return -EINVAL;
         }
 
-        return 0;
+        return flipped;
 }
 
 int lustre_unpack_req_ptlrpc_body(struct ptlrpc_request *req, int offset)
 {
         switch (req->rq_reqmsg->lm_magic) {
         case LUSTRE_MSG_MAGIC_V2:
-                return lustre_unpack_ptlrpc_body_v2(req, 1, offset);
+        case LUSTRE_MSG_MAGIC_V2_SWABBED:
+                lustre_set_req_swabbed(req, offset);
+                return lustre_unpack_ptlrpc_body_v2(req->rq_reqmsg, offset);
         default:
                 CERROR("bad lustre msg magic: %#08X\n",
                        req->rq_reqmsg->lm_magic);
@@ -650,7 +606,9 @@ int lustre_unpack_rep_ptlrpc_body(struct ptlrpc_request *req, int offset)
 {
         switch (req->rq_repmsg->lm_magic) {
         case LUSTRE_MSG_MAGIC_V2:
-                return lustre_unpack_ptlrpc_body_v2(req, 0, offset);
+        case LUSTRE_MSG_MAGIC_V2_SWABBED:
+                lustre_set_rep_swabbed(req, offset);
+                return lustre_unpack_ptlrpc_body_v2(req->rq_repmsg, offset);
         default:
                 CERROR("bad lustre msg magic: %#08X\n",
                        req->rq_repmsg->lm_magic);
@@ -786,7 +744,7 @@ void *lustre_swab_buf(struct lustre_msg *msg, int index, int min_size,
         if (ptr == NULL)
                 return NULL;
 
-        if (swabber != NULL)
+        if (swabber != NULL && lustre_msg_swabbed(msg))
                 ((void (*)(void *))swabber)(ptr);
 
         return ptr;
@@ -795,9 +753,6 @@ void *lustre_swab_buf(struct lustre_msg *msg, int index, int min_size,
 void *lustre_swab_reqbuf(struct ptlrpc_request *req, int index, int min_size,
                          void *swabber)
 {
-        if (!ptlrpc_reqbuf_need_swab(req, index))
-                 swabber = NULL;
-
         lustre_set_req_swabbed(req, index);
         return lustre_swab_buf(req->rq_reqmsg, index, min_size, swabber);
 }
@@ -805,9 +760,6 @@ void *lustre_swab_reqbuf(struct ptlrpc_request *req, int index, int min_size,
 void *lustre_swab_repbuf(struct ptlrpc_request *req, int index, int min_size,
                          void *swabber)
 {
-        if (!ptlrpc_repbuf_need_swab(req, index))
-                 swabber = NULL;
-
         lustre_set_rep_swabbed(req, index);
         return lustre_swab_buf(req->rq_repmsg, index, min_size, swabber);
 }
diff --git a/lustre/ptlrpc/ptlrpc_internal.h b/lustre/ptlrpc/ptlrpc_internal.h
index a357b38..bdea8bd 100644
--- a/lustre/ptlrpc/ptlrpc_internal.h
+++ b/lustre/ptlrpc/ptlrpc_internal.h
@@ -90,7 +90,6 @@ void ptlrpc_add_bulk_page(struct ptlrpc_bulk_desc *desc, cfs_page_t *page,
 void ptl_rpc_wipe_bulk_pages(struct ptlrpc_bulk_desc *desc);
 
 /* pack_generic.c */
-int lustre_msg_need_swab(struct lustre_msg *msg);
 struct ptlrpc_reply_state *lustre_get_emerg_rs(struct ptlrpc_service *svc);
 void lustre_put_emerg_rs(struct ptlrpc_reply_state *rs);
 
diff --git a/lustre/ptlrpc/ptlrpc_module.c b/lustre/ptlrpc/ptlrpc_module.c
index 16c47c4..76e0727 100644
--- a/lustre/ptlrpc/ptlrpc_module.c
+++ b/lustre/ptlrpc/ptlrpc_module.c
@@ -213,6 +213,7 @@ EXPORT_SYMBOL(ptlrpc_daemonize);
 EXPORT_SYMBOL(ptlrpc_service_health_check);
 
 /* pack_generic.c */
+EXPORT_SYMBOL(lustre_msg_swabbed);
 EXPORT_SYMBOL(lustre_msg_check_version);
 EXPORT_SYMBOL(lustre_pack_request);
 EXPORT_SYMBOL(lustre_pack_reply);
diff --git a/lustre/ptlrpc/sec.c b/lustre/ptlrpc/sec.c
index 6e6b5d1..977ac89 100644
--- a/lustre/ptlrpc/sec.c
+++ b/lustre/ptlrpc/sec.c
@@ -2223,7 +2223,7 @@ int sptlrpc_unpack_user_desc(struct lustre_msg *msg, int offset)
         if (!pud)
                 return -EINVAL;
 
-        if (lustre_msg_need_swab(msg)) {
+        if (lustre_msg_swabbed(msg)) {
                 __swab32s(&pud->pud_uid);
                 __swab32s(&pud->pud_gid);
                 __swab32s(&pud->pud_fsuid);
@@ -2244,7 +2244,7 @@ int sptlrpc_unpack_user_desc(struct lustre_msg *msg, int offset)
                 return -EINVAL;
         }
 
-        if (lustre_msg_need_swab(msg)) {
+        if (lustre_msg_swabbed(msg)) {
                 for (i = 0; i < pud->pud_ngroups; i++)
                         __swab32s(&pud->pud_groups[i]);
         }
diff --git a/lustre/ptlrpc/service.c b/lustre/ptlrpc/service.c
index ee8913c..37d7bf9 100644
--- a/lustre/ptlrpc/service.c
+++ b/lustre/ptlrpc/service.c
@@ -967,16 +967,13 @@ ptlrpc_server_handle_req_in(struct ptlrpc_service *svc)
         req->rq_req_swab_mask = 0;
 
         rc = lustre_unpack_msg(req->rq_reqmsg, req->rq_reqlen);
-        if (rc < 0) {
+        if (rc != 0) {
                 CERROR("error unpacking request: ptl %d from %s x"LPU64"\n",
                        svc->srv_req_portal, libcfs_id2str(req->rq_peer),
                        req->rq_xid);
                 goto err_req;
         }
 
-        if (rc > 0)
-                lustre_set_req_swabbed(req, MSG_PTLRPC_HEADER_OFF);
-
         rc = lustre_unpack_req_ptlrpc_body(req, MSG_PTLRPC_BODY_OFF);
         if (rc) {
                 CERROR ("error unpacking ptlrpc body: ptl %d from %s x"