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LU-8560 libcfs: handle PAGE_CACHE_* removal in newer kernels
[fs/lustre-release.git] / lnet / selftest / brw_test.c
index 18d0037..1379c53 100644 (file)
@@ -27,7 +27,7 @@
  * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 #include "selftest.h"
 
 static int brw_srv_workitems = SFW_TEST_WI_MAX;
-CFS_MODULE_PARM(brw_srv_workitems, "i", int, 0644, "# BRW server workitems");
+module_param(brw_srv_workitems, int, 0644);
+MODULE_PARM_DESC(brw_srv_workitems, "# BRW server workitems");
 
 static int brw_inject_errors;
-CFS_MODULE_PARM(brw_inject_errors, "i", int, 0644,
-               "# data errors to inject randomly, zero by default");
+module_param(brw_inject_errors, int, 0644);
+MODULE_PARM_DESC(brw_inject_errors, "# data errors to inject randomly, zero by default");
 
 static void
 brw_client_fini (sfw_test_instance_t *tsi)
@@ -65,7 +66,7 @@ brw_client_fini (sfw_test_instance_t *tsi)
        }
 }
 
-int
+static int
 brw_client_init (sfw_test_instance_t *tsi)
 {
        sfw_session_t    *sn = tsi->tsi_batch->bat_session;
@@ -87,7 +88,7 @@ brw_client_init (sfw_test_instance_t *tsi)
                npg   = breq->blk_npg;
                /* NB: this is not going to work for variable page size,
                 * but we have to keep it for compatibility */
-               len   = npg * PAGE_CACHE_SIZE;
+               len   = npg * PAGE_SIZE;
 
        } else {
                test_bulk_req_v1_t  *breq = &tsi->tsi_u.bulk_v1;
@@ -99,7 +100,7 @@ brw_client_init (sfw_test_instance_t *tsi)
                opc   = breq->blk_opc;
                flags = breq->blk_flags;
                len   = breq->blk_len;
-               npg   = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+               npg   = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
        }
 
        if (npg > LNET_MAX_IOV || npg <= 0)
@@ -130,25 +131,21 @@ brw_client_init (sfw_test_instance_t *tsi)
 #define BRW_MAGIC       0xeeb0eeb1eeb2eeb3ULL
 #define BRW_MSIZE       sizeof(__u64)
 
-int brw_inject_one_error (void)
+static int brw_inject_one_error(void)
 {
        struct timeval tv;
 
        if (brw_inject_errors <= 0) return 0;
 
-#ifndef __KERNEL__
-       gettimeofday(&tv, NULL);
-#else
        do_gettimeofday(&tv);
-#endif
 
        if ((tv.tv_usec & 1) == 0) return 0;
 
        return brw_inject_errors--;
 }
 
-void
-brw_fill_page (struct page *pg, int pattern, __u64 magic)
+static void
+brw_fill_page(struct page *pg, int pattern, __u64 magic)
 {
        char *addr = page_address(pg);
         int   i;
@@ -162,13 +159,13 @@ brw_fill_page (struct page *pg, int pattern, __u64 magic)
 
         if (pattern == LST_BRW_CHECK_SIMPLE) {
                 memcpy(addr, &magic, BRW_MSIZE);
-               addr += PAGE_CACHE_SIZE - BRW_MSIZE;
+               addr += PAGE_SIZE - BRW_MSIZE;
                 memcpy(addr, &magic, BRW_MSIZE);
                 return;
         }
 
         if (pattern == LST_BRW_CHECK_FULL) {
-               for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++)
+               for (i = 0; i < PAGE_SIZE / BRW_MSIZE; i++)
                         memcpy(addr + i * BRW_MSIZE, &magic, BRW_MSIZE);
                 return;
         }
@@ -177,8 +174,8 @@ brw_fill_page (struct page *pg, int pattern, __u64 magic)
         return;
 }
 
-int
-brw_check_page (struct page *pg, int pattern, __u64 magic)
+static int
+brw_check_page(struct page *pg, int pattern, __u64 magic)
 {
        char  *addr = page_address(pg);
         __u64  data = 0; /* make compiler happy */
@@ -193,7 +190,7 @@ brw_check_page (struct page *pg, int pattern, __u64 magic)
                 data = *((__u64 *) addr);
                 if (data != magic) goto bad_data;
 
-               addr += PAGE_CACHE_SIZE - BRW_MSIZE;
+               addr += PAGE_SIZE - BRW_MSIZE;
                 data = *((__u64 *) addr);
                 if (data != magic) goto bad_data;
 
@@ -201,7 +198,7 @@ brw_check_page (struct page *pg, int pattern, __u64 magic)
         }
 
         if (pattern == LST_BRW_CHECK_FULL) {
-               for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++) {
+               for (i = 0; i < PAGE_SIZE / BRW_MSIZE; i++) {
                         data = *(((__u64 *) addr) + i);
                         if (data != magic) goto bad_data;
                 }
@@ -212,41 +209,31 @@ brw_check_page (struct page *pg, int pattern, __u64 magic)
         LBUG ();
 
 bad_data:
-        CERROR ("Bad data in page %p: "LPX64", "LPX64" expected\n",
+       CERROR ("Bad data in page %p: %#llx, %#llx expected\n",
                 pg, data, magic);
         return 1;
 }
 
-void
-brw_fill_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
+static void
+brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
 {
         int         i;
        struct page *pg;
 
         for (i = 0; i < bk->bk_niov; i++) {
-#ifdef __KERNEL__
                 pg = bk->bk_iovs[i].kiov_page;
-#else
-                LASSERT (bk->bk_pages != NULL);
-                pg = bk->bk_pages[i];
-#endif
                 brw_fill_page(pg, pattern, magic);
         }
 }
 
-int
-brw_check_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
+static int
+brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
 {
         int         i;
        struct page *pg;
 
         for (i = 0; i < bk->bk_niov; i++) {
-#ifdef __KERNEL__
                 pg = bk->bk_iovs[i].kiov_page;
-#else
-                LASSERT (bk->bk_pages != NULL);
-                pg = bk->bk_pages[i];
-#endif
                 if (brw_check_page(pg, pattern, magic) != 0) {
                         CERROR ("Bulk page %p (%d/%d) is corrupted!\n",
                                 pg, i, bk->bk_niov);
@@ -281,7 +268,7 @@ brw_client_prep_rpc (sfw_test_unit_t *tsu,
                opc   = breq->blk_opc;
                flags = breq->blk_flags;
                npg   = breq->blk_npg;
-               len   = npg * PAGE_CACHE_SIZE;
+               len   = npg * PAGE_SIZE;
 
        } else {
                test_bulk_req_v1_t  *breq = &tsi->tsi_u.bulk_v1;
@@ -293,7 +280,7 @@ brw_client_prep_rpc (sfw_test_unit_t *tsu,
                opc   = breq->blk_opc;
                flags = breq->blk_flags;
                len   = breq->blk_len;
-               npg   = (len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+               npg   = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
        }
 
        rc = sfw_create_test_rpc(tsu, dest, sn->sn_features, npg, len, &rpc);
@@ -316,77 +303,75 @@ brw_client_prep_rpc (sfw_test_unit_t *tsu,
 }
 
 static void
-brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
+brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 {
-        __u64                magic = BRW_MAGIC;
-        sfw_test_instance_t *tsi = tsu->tsu_instance;
-        sfw_session_t       *sn = tsi->tsi_batch->bat_session;
-        srpc_msg_t          *msg = &rpc->crpc_replymsg;
-        srpc_brw_reply_t    *reply = &msg->msg_body.brw_reply;
-        srpc_brw_reqst_t    *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
+       __u64                magic = BRW_MAGIC;
+       sfw_test_instance_t *tsi = tsu->tsu_instance;
+       sfw_session_t       *sn = tsi->tsi_batch->bat_session;
+       srpc_msg_t          *msg = &rpc->crpc_replymsg;
+       srpc_brw_reply_t    *reply = &msg->msg_body.brw_reply;
+       srpc_brw_reqst_t    *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
 
-        LASSERT (sn != NULL);
+       LASSERT(sn != NULL);
 
-        if (rpc->crpc_status != 0) {
-                CERROR ("BRW RPC to %s failed with %d\n",
-                        libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
-                if (!tsi->tsi_stopping) /* rpc could have been aborted */
+       if (rpc->crpc_status != 0) {
+               CERROR("BRW RPC to %s failed with %d\n",
+                      libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
+               if (!tsi->tsi_stopping) /* rpc could have been aborted */
                        atomic_inc(&sn->sn_brw_errors);
-                goto out;
-        }
+               return;
+       }
 
-        if (msg->msg_magic != SRPC_MSG_MAGIC) {
-                __swab64s(&magic);
-                __swab32s(&reply->brw_status);
-        }
+       if (msg->msg_magic != SRPC_MSG_MAGIC) {
+               __swab64s(&magic);
+               __swab32s(&reply->brw_status);
+       }
 
-        CDEBUG (reply->brw_status ? D_WARNING : D_NET,
-                "BRW RPC to %s finished with brw_status: %d\n",
-                libcfs_id2str(rpc->crpc_dest), reply->brw_status);
+       CDEBUG(reply->brw_status ? D_WARNING : D_NET,
+              "BRW RPC to %s finished with brw_status: %d\n",
+              libcfs_id2str(rpc->crpc_dest), reply->brw_status);
 
-        if (reply->brw_status != 0) {
+       if (reply->brw_status != 0) {
                atomic_inc(&sn->sn_brw_errors);
-                rpc->crpc_status = -(int)reply->brw_status;
-                goto out;
-        }
+               rpc->crpc_status = -(int)reply->brw_status;
+               return;
+       }
 
-        if (reqst->brw_rw == LST_BRW_WRITE) goto out;
+       if (reqst->brw_rw == LST_BRW_WRITE)
+               return;
 
-        if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
-                CERROR ("Bulk data from %s is corrupted!\n",
-                        libcfs_id2str(rpc->crpc_dest));
+       if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
+               CERROR("Bulk data from %s is corrupted!\n",
+                      libcfs_id2str(rpc->crpc_dest));
                atomic_inc(&sn->sn_brw_errors);
-                rpc->crpc_status = -EBADMSG;
-        }
+               rpc->crpc_status = -EBADMSG;
+       }
 
-out:
-#ifndef __KERNEL__
-        rpc->crpc_bulk.bk_pages = NULL;
-#endif
-        return;
+       return;
 }
 
-void
-brw_server_rpc_done (srpc_server_rpc_t *rpc)
+static void
+brw_server_rpc_done(srpc_server_rpc_t *rpc)
 {
-        srpc_bulk_t *blk = rpc->srpc_bulk;
+       srpc_bulk_t *blk = rpc->srpc_bulk;
 
-        if (blk == NULL) return;
+       if (blk == NULL)
+               return;
 
-        if (rpc->srpc_status != 0)
-                CERROR ("Bulk transfer %s %s has failed: %d\n",
-                        blk->bk_sink ? "from" : "to",
-                        libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
-        else
-                CDEBUG (D_NET, "Transfered %d pages bulk data %s %s\n",
-                        blk->bk_niov, blk->bk_sink ? "from" : "to",
-                        libcfs_id2str(rpc->srpc_peer));
+       if (rpc->srpc_status != 0)
+               CERROR("Bulk transfer %s %s has failed: %d\n",
+                      blk->bk_sink ? "from" : "to",
+                      libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
+       else
+               CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
+                      blk->bk_niov, blk->bk_sink ? "from" : "to",
+                      libcfs_id2str(rpc->srpc_peer));
 
-        sfw_free_pages(rpc);
+       sfw_free_pages(rpc);
 }
 
-int
-brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
+static int
+brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
 {
         __u64             magic = BRW_MAGIC;
         srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
@@ -421,7 +406,7 @@ brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
         return 0;
 }
 
-int
+static int
 brw_server_handle(struct srpc_server_rpc *rpc)
 {
        struct srpc_service     *sv = rpc->srpc_scd->scd_svc;
@@ -464,14 +449,14 @@ brw_server_handle(struct srpc_server_rpc *rpc)
 
        if ((reqstmsg->msg_ses_feats & LST_FEAT_BULK_LEN) == 0) {
                /* compat with old version */
-               if ((reqst->brw_len & ~CFS_PAGE_MASK) != 0) {
+               if ((reqst->brw_len & ~PAGE_MASK) != 0) {
                        reply->brw_status = EINVAL;
                        return 0;
                }
-               npg = reqst->brw_len >> PAGE_CACHE_SHIFT;
+               npg = reqst->brw_len >> PAGE_SHIFT;
 
        } else {
-               npg = (reqst->brw_len + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+               npg = (reqst->brw_len + PAGE_SIZE - 1) >> PAGE_SHIFT;
        }
 
        replymsg->msg_ses_feats = reqstmsg->msg_ses_feats;
@@ -507,12 +492,6 @@ void brw_init_test_client(void)
 srpc_service_t brw_test_service;
 void brw_init_test_service(void)
 {
-#ifndef __KERNEL__
-       char *s;
-
-       s = getenv("BRW_INJECT_ERRORS");
-       brw_inject_errors = s != NULL ? atoi(s) : brw_inject_errors;
-#endif
 
         brw_test_service.sv_id         = SRPC_SERVICE_BRW;
         brw_test_service.sv_name       = "brw_test";