Branch HEAD

[fs/lustre-release.git] / lustre / ptlrpc / layout.c

diff --git a/lustre/ptlrpc/layout.c b/lustre/ptlrpc/layout.c
index c11e836..531ef12 100644 (file)
--- a/lustre/ptlrpc/layout.c
+++ b/lustre/ptlrpc/layout.c
@@ -504,6 +504,17 @@ static const struct req_msg_field *ost_get_last_id_server[] = {
         &RMF_OBD_ID
 };
 
+static const struct req_msg_field *ost_get_fiemap_client[] = {
+        &RMF_PTLRPC_BODY,
+        &RMF_FIEMAP_KEY,
+        &RMF_FIEMAP_VAL
+};
+
+static const struct req_msg_field *ost_get_fiemap_server[] = {
+        &RMF_PTLRPC_BODY,
+        &RMF_FIEMAP_VAL
+};
+
 static const struct req_format *req_formats[] = {
         &RQF_OBD_PING,
         &RQF_SEC_CTX,
@@ -556,6 +567,7 @@ static const struct req_format *req_formats[] = {
         &RQF_OST_SET_INFO,
         &RQF_OST_GET_INFO_GENERIC,
         &RQF_OST_GET_INFO_LAST_ID,
+        &RQF_OST_GET_INFO_FIEMAP,
         &RQF_LDLM_ENQUEUE,
         &RQF_LDLM_ENQUEUE_LVB,
         &RQF_LDLM_CONVERT,
@@ -582,7 +594,7 @@ static const struct req_format *req_formats[] = {
 struct req_msg_field {
         __u32       rmf_flags;
         const char *rmf_name;
-        /*
+        /**
          * Field length. (-1) means "variable length".
          */
         int         rmf_size;
@@ -809,6 +821,14 @@ const struct req_msg_field RMF_OBD_ID =
                     sizeof(obd_id), lustre_swab_ost_last_id);
 EXPORT_SYMBOL(RMF_OBD_ID);
 
+const struct req_msg_field RMF_FIEMAP_KEY =
+        DEFINE_MSGF("fiemap", 0, sizeof(struct ll_fiemap_info_key),
+                    lustre_swab_fiemap);
+EXPORT_SYMBOL(RMF_FIEMAP_KEY);
+
+const struct req_msg_field RMF_FIEMAP_VAL =
+        DEFINE_MSGF("fiemap", 0, -1, lustre_swab_fiemap);
+EXPORT_SYMBOL(RMF_FIEMAP_VAL);
 
 /*
  * Request formats.
@@ -1172,6 +1192,11 @@ const struct req_format RQF_OST_GET_INFO_LAST_ID =
                                                 ost_get_last_id_server);
 EXPORT_SYMBOL(RQF_OST_GET_INFO_LAST_ID);
 
+const struct req_format RQF_OST_GET_INFO_FIEMAP =
+        DEFINE_REQ_FMT0("OST_GET_INFO_FIEMAP", ost_get_fiemap_client,
+                                               ost_get_fiemap_server);
+EXPORT_SYMBOL(RQF_OST_GET_INFO_FIEMAP);
+
 
 #if !defined(__REQ_LAYOUT_USER__)
 
@@ -1326,7 +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 < (sizeof(pill->rc_swabbed) << 3));
+        LASSERT(0 <= offset && offset < REQ_MAX_FIELD_NR);
         return offset;
 }
 
@@ -1340,6 +1365,7 @@ 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);
 
@@ -1348,8 +1374,11 @@ static void *__req_capsule_get(struct req_capsule *pill,
                 [RCL_SERVER] = "server"
         };
 
+        LASSERT(pill != NULL);
+        LASSERT(pill != LP_POISON);
         fmt = pill->rc_fmt;
         LASSERT(fmt != NULL);
+        LASSERT(fmt != LP_POISON);
         LASSERT(__req_format_is_sane(fmt));
 
         offset = __req_capsule_offset(pill, field, loc);
@@ -1367,12 +1396,12 @@ static void *__req_capsule_get(struct req_capsule *pill,
         value = getter(msg, offset, len);
 
         swabber = swabber ?: field->rmf_swabber;
-        if (!(pill->rc_swabbed & (1 << offset)) && loc != pill->rc_loc &&
-            swabber != NULL && value != NULL &&
-            lustre_msg_swabbed(msg)) {
+        if (ptlrpc_req_need_swab(pill->rc_req, inout, offset) &&
+            swabber != NULL && value != NULL) {
                 swabber(value);
-                pill->rc_swabbed |= (1 << offset);
+                ptlrpc_req_set_swabbed(pill->rc_req, inout, offset);
         }
+
         if (value == NULL) {
                 DEBUG_REQ(D_ERROR, pill->rc_req,
                           "Wrong buffer for field `%s' (%d of %d) "
@@ -1516,7 +1545,6 @@ 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);