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LU-8726 osd-ldiskfs: bypass read for benchmarking
[fs/lustre-release.git] / lustre / lov / lov_merge.c
index b7911c9..2169042 100644 (file)
  *
  * You should have received a copy of the GNU General Public License
  * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
+ * http://www.gnu.org/licenses/gpl-2.0.html
  *
  * GPL HEADER END
  */
@@ -27,7 +23,7 @@
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Use is subject to license terms.
  *
- * Copyright (c) 2012, 2013, Intel Corporation.
+ * Copyright (c) 2012, 2015, Intel Corporation.
  */
 /*
  * This file is part of Lustre, http://www.lustre.org/
 
 #define DEBUG_SUBSYSTEM S_LOV
 
-#ifdef __KERNEL__
 #include <libcfs/libcfs.h>
-#else
-#include <liblustre.h>
-#endif
 
 #include <obd_class.h>
 #include "lov_internal.h"
 int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
                       struct ost_lvb *lvb, __u64 *kms_place)
 {
-       __u64 size = 0;
-       __u64 kms = 0;
-       __u64 blocks = 0;
-       obd_time current_mtime = lvb->lvb_mtime;
-       obd_time current_atime = lvb->lvb_atime;
-       obd_time current_ctime = lvb->lvb_ctime;
+       u64 size = 0;
+       u64 kms = 0;
+       u64 blocks = 0;
+       s64 current_mtime = lvb->lvb_mtime;
+       s64 current_atime = lvb->lvb_atime;
+       s64 current_ctime = lvb->lvb_ctime;
        int i;
        int rc = 0;
 
-       LASSERT(spin_is_locked(&lsm->lsm_lock));
-#ifdef __KERNEL__
+       assert_spin_locked(&lsm->lsm_lock);
        LASSERT(lsm->lsm_lock_owner == current_pid());
-#endif
 
-       CDEBUG(D_INODE, "MDT ID "DOSTID" initial value: s="LPU64" m="LPU64
-              " a="LPU64" c="LPU64" b="LPU64"\n", POSTID(&lsm->lsm_oi),
+       CDEBUG(D_INODE, "MDT ID "DOSTID" initial value: s=%llu m=%llu"
+              " a=%llu c=%llu b=%llu\n", POSTID(&lsm->lsm_oi),
               lvb->lvb_size, lvb->lvb_mtime, lvb->lvb_atime, lvb->lvb_ctime,
               lvb->lvb_blocks);
        for (i = 0; i < lsm->lsm_stripe_count; i++) {
-                struct lov_oinfo *loi = lsm->lsm_oinfo[i];
-                obd_size lov_size, tmpsize;
+               struct lov_oinfo *loi = lsm->lsm_oinfo[i];
+               u64 lov_size;
+               u64 tmpsize;
 
                 if (OST_LVB_IS_ERR(loi->loi_lvb.lvb_blocks)) {
                         rc = OST_LVB_GET_ERR(loi->loi_lvb.lvb_blocks);
@@ -100,8 +91,8 @@ int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
                 if (loi->loi_lvb.lvb_ctime > current_ctime)
                         current_ctime = loi->loi_lvb.lvb_ctime;
 
-               CDEBUG(D_INODE, "MDT ID "DOSTID" on OST[%u]: s="LPU64" m="LPU64
-                      " a="LPU64" c="LPU64" b="LPU64"\n", POSTID(&lsm->lsm_oi),
+               CDEBUG(D_INODE, "MDT ID "DOSTID" on OST[%u]: s=%llu m=%llu"
+                      " a=%llu c=%llu b=%llu\n", POSTID(&lsm->lsm_oi),
                       loi->loi_ost_idx, loi->loi_lvb.lvb_size,
                       loi->loi_lvb.lvb_mtime, loi->loi_lvb.lvb_atime,
                       loi->loi_lvb.lvb_ctime, loi->loi_lvb.lvb_blocks);
@@ -115,93 +106,3 @@ int lov_merge_lvb_kms(struct lov_stripe_md *lsm,
         lvb->lvb_ctime = current_ctime;
         RETURN(rc);
 }
-
-/* Must be called under the lov_stripe_lock() */
-int lov_adjust_kms(struct obd_export *exp, struct lov_stripe_md *lsm,
-                   obd_off size, int shrink)
-{
-        struct lov_oinfo *loi;
-        int stripe = 0;
-        __u64 kms;
-        ENTRY;
-
-       LASSERT(spin_is_locked(&lsm->lsm_lock));
-#ifdef __KERNEL__
-       LASSERT(lsm->lsm_lock_owner == current_pid());
-#endif
-
-        if (shrink) {
-                for (; stripe < lsm->lsm_stripe_count; stripe++) {
-                        struct lov_oinfo *loi = lsm->lsm_oinfo[stripe];
-                        kms = lov_size_to_stripe(lsm, size, stripe);
-                        CDEBUG(D_INODE,
-                               "stripe %d KMS %sing "LPU64"->"LPU64"\n",
-                               stripe, kms > loi->loi_kms ? "increas":"shrink",
-                               loi->loi_kms, kms);
-                        loi_kms_set(loi, loi->loi_lvb.lvb_size = kms);
-                }
-                RETURN(0);
-        }
-
-        if (size > 0)
-                stripe = lov_stripe_number(lsm, size - 1);
-        kms = lov_size_to_stripe(lsm, size, stripe);
-        loi = lsm->lsm_oinfo[stripe];
-
-        CDEBUG(D_INODE, "stripe %d KMS %sincreasing "LPU64"->"LPU64"\n",
-               stripe, kms > loi->loi_kms ? "" : "not ", loi->loi_kms, kms);
-        if (kms > loi->loi_kms)
-                loi_kms_set(loi, kms);
-
-        RETURN(0);
-}
-
-void lov_merge_attrs(struct obdo *tgt, struct obdo *src, obd_valid valid,
-                     struct lov_stripe_md *lsm, int stripeno, int *set)
-{
-       valid &= src->o_valid;
-
-       if (*set != 0) {
-               tgt->o_valid &= valid;
-               if (valid & OBD_MD_FLSIZE) {
-                       /* this handles sparse files properly */
-                       obd_size lov_size;
-
-                       lov_size = lov_stripe_size(lsm, src->o_size, stripeno);
-                       if (lov_size > tgt->o_size)
-                               tgt->o_size = lov_size;
-               }
-               if (valid & OBD_MD_FLBLOCKS)
-                       tgt->o_blocks += src->o_blocks;
-               if (valid & OBD_MD_FLBLKSZ)
-                       tgt->o_blksize += src->o_blksize;
-               if (valid & OBD_MD_FLCTIME && tgt->o_ctime < src->o_ctime)
-                       tgt->o_ctime = src->o_ctime;
-               if (valid & OBD_MD_FLMTIME && tgt->o_mtime < src->o_mtime)
-                       tgt->o_mtime = src->o_mtime;
-               if (valid & OBD_MD_FLDATAVERSION)
-                       tgt->o_data_version += src->o_data_version;
-
-               /* handle flags */
-               if (valid & OBD_MD_FLFLAGS)
-                       tgt->o_flags &= src->o_flags;
-               else
-                       tgt->o_flags = 0;
-       } else {
-               memcpy(tgt, src, sizeof(*tgt));
-               tgt->o_oi = lsm->lsm_oi;
-               tgt->o_valid = valid;
-               if (valid & OBD_MD_FLSIZE)
-                       tgt->o_size = lov_stripe_size(lsm, src->o_size,
-                                                     stripeno);
-               tgt->o_flags = 0;
-               if (valid & OBD_MD_FLFLAGS)
-                       tgt->o_flags = src->o_flags;
-       }
-
-       /* data_version needs to be valid on all stripes to be correct! */
-       if (!(valid & OBD_MD_FLDATAVERSION))
-               tgt->o_valid &= ~OBD_MD_FLDATAVERSION;
-
-       *set += 1;
-}