Whamcloud - gitweb
LU-5061 obd: add lnb_ prefix to members of struct niobuf_local
[fs/lustre-release.git] / lustre / osd-ldiskfs / osd_io.c
index d223585..935478c 100644 (file)
@@ -158,7 +158,7 @@ static void dio_complete_routine(struct bio *bio, int error)
                CERROR("***** bio->bi_private is NULL!  This should never "
                       "happen.  Normally, I would crash here, but instead I "
                       "will dump the bio contents to the console.  Please "
-                      "report this to <http://jira.whamcloud.com/> , along "
+                      "report this to <https://jira.hpdd.intel.com/> , along "
                       "with any interesting messages leading up to this point "
                       "(like SCSI errors, perhaps).  Because bi_private is "
                       "NULL, I can't wake up the thread that initiated this "
@@ -395,11 +395,11 @@ static int osd_map_remote_to_local(loff_t offset, ssize_t len, int *nrpages,
                         plen = len;
                lnb->lnb_file_offset = offset;
                lnb->lnb_page_offset = poff;
-                lnb->len = plen;
-                /* lb->flags = rnb->flags; */
-                lnb->flags = 0;
-                lnb->page = NULL;
-                lnb->rc = 0;
+               lnb->lnb_len = plen;
+               /* lnb->lnb_flags = rnb->flags; */
+               lnb->lnb_flags = 0;
+               lnb->lnb_page = NULL;
+               lnb->lnb_rc = 0;
 
                 LASSERTF(plen <= len, "plen %u, len %lld\n", plen,
                          (long long) len);
@@ -458,26 +458,20 @@ int osd_bufs_get(const struct lu_env *env, struct dt_object *d, loff_t pos,
         osd_map_remote_to_local(pos, len, &npages, lnb);
 
         for (i = 0; i < npages; i++, lnb++) {
-
-                /* We still set up for ungranted pages so that granted pages
-                 * can be written to disk as they were promised, and portals
-                 * needs to keep the pages all aligned properly. */
-                lnb->dentry = (void *) obj;
-
-               lnb->page = osd_get_page(d, lnb->lnb_file_offset, rw);
-                if (lnb->page == NULL)
-                        GOTO(cleanup, rc = -ENOMEM);
-
-                /* DLM locking protects us from write and truncate competing
-                 * for same region, but truncate can leave dirty page in the
-                 * cache. it's possible the writeout on a such a page is in
-                 * progress when we access it. it's also possible that during
-                 * this writeout we put new (partial) data, but then won't
-                 * be able to proceed in filter_commitrw_write(). thus let's
-                 * just wait for writeout completion, should be rare enough.
-                 * -bzzz */
-                wait_on_page_writeback(lnb->page);
-                BUG_ON(PageWriteback(lnb->page));
+               lnb->lnb_page = osd_get_page(d, lnb->lnb_file_offset, rw);
+               if (lnb->lnb_page == NULL)
+                       GOTO(cleanup, rc = -ENOMEM);
+
+               /* DLM locking protects us from write and truncate competing
+                * for same region, but truncate can leave dirty page in the
+                * cache. it's possible the writeout on a such a page is in
+                * progress when we access it. it's also possible that during
+                * this writeout we put new (partial) data, but then won't
+                * be able to proceed in filter_commitrw_write(). thus let's
+                * just wait for writeout completion, should be rare enough.
+                * -bzzz */
+               wait_on_page_writeback(lnb->lnb_page);
+               BUG_ON(PageWriteback(lnb->lnb_page));
 
                 lu_object_get(&d->do_lu);
         }
@@ -488,20 +482,21 @@ cleanup:
 }
 
 static int osd_bufs_put(const struct lu_env *env, struct dt_object *dt,
-                        struct niobuf_local *lnb, int npages)
+                       struct niobuf_local *lnb, int npages)
 {
-        int                     i;
+       int i;
 
-        for (i = 0; i < npages; i++) {
-                if (lnb[i].page == NULL)
-                        continue;
-                LASSERT(PageLocked(lnb[i].page));
-                unlock_page(lnb[i].page);
-                page_cache_release(lnb[i].page);
-                lu_object_put(env, &dt->do_lu);
-                lnb[i].page = NULL;
-        }
-        RETURN(0);
+       for (i = 0; i < npages; i++) {
+               if (lnb[i].lnb_page == NULL)
+                       continue;
+               LASSERT(PageLocked(lnb[i].lnb_page));
+               unlock_page(lnb[i].lnb_page);
+               page_cache_release(lnb[i].lnb_page);
+               lu_object_put(env, &dt->do_lu);
+               lnb[i].lnb_page = NULL;
+       }
+
+       RETURN(0);
 }
 
 #ifdef HAVE_EXT_PBLOCK /* Name changed to ext4_ext_pblock for kernel 2.6.35 */
@@ -664,11 +659,12 @@ static int ldiskfs_ext_new_extent_cb(struct inode *inode,
                 * but otherwise we'd need to call it every free() */
                ldiskfs_discard_preallocations(inode);
 #ifdef HAVE_EXT_FREE_BLOCK_WITH_BUFFER_HEAD /* Introduced in 2.6.32-rc7 */
-               ldiskfs_free_blocks(handle, inode, NULL, ldiskfs_ext_pblock(&nex),
-                                   cpu_to_le16(nex.ee_len), 0);
+               ldiskfs_free_blocks(handle, inode, NULL,
+                                   ldiskfs_ext_pblock(&nex),
+                                   le16_to_cpu(nex.ee_len), 0);
 #else
                ldiskfs_free_blocks(handle, inode, ldiskfs_ext_pblock(&nex),
-                                   cpu_to_le16(nex.ee_len), 0);
+                                   le16_to_cpu(nex.ee_len), 0);
 #endif
                goto out;
        }
@@ -824,20 +820,16 @@ int osd_ldiskfs_map_bm_inode_pages(struct inode *inode, struct page **page,
 
 static int osd_ldiskfs_map_inode_pages(struct inode *inode, struct page **page,
                                       int pages, unsigned long *blocks,
-                                      int create, struct mutex *optional_mutex)
+                                      int create)
 {
        int rc;
 
-       if (LDISKFS_I(inode)->i_flags & LDISKFS_EXTENTS_FL) {
+       if (ldiskfs_test_inode_flag(inode, LDISKFS_INODE_EXTENTS)) {
                rc = osd_ldiskfs_map_ext_inode_pages(inode, page, pages,
                                                     blocks, create);
                return rc;
        }
-       if (optional_mutex != NULL)
-               mutex_lock(optional_mutex);
        rc = osd_ldiskfs_map_bm_inode_pages(inode, page, pages, blocks, create);
-       if (optional_mutex != NULL)
-               mutex_unlock(optional_mutex);
 
        return rc;
 }
@@ -875,34 +867,34 @@ static int osd_write_prep(const struct lu_env *env, struct dt_object *dt,
        do_gettimeofday(&start);
        for (i = 0; i < npages; i++) {
 
-                if (cache == 0)
-                        generic_error_remove_page(inode->i_mapping,
-                                                  lnb[i].page);
+               if (cache == 0)
+                       generic_error_remove_page(inode->i_mapping,
+                                                 lnb[i].lnb_page);
 
-                /*
-                 * till commit the content of the page is undefined
-                 * we'll set it uptodate once bulk is done. otherwise
-                 * subsequent reads can access non-stable data
-                 */
-                ClearPageUptodate(lnb[i].page);
+               /*
+                * till commit the content of the page is undefined
+                * we'll set it uptodate once bulk is done. otherwise
+                * subsequent reads can access non-stable data
+                */
+               ClearPageUptodate(lnb[i].lnb_page);
 
-               if (lnb[i].len == PAGE_CACHE_SIZE)
-                        continue;
+               if (lnb[i].lnb_len == PAGE_CACHE_SIZE)
+                       continue;
 
-                if (maxidx >= lnb[i].page->index) {
-                        osd_iobuf_add_page(iobuf, lnb[i].page);
-                } else {
-                        long off;
-                        char *p = kmap(lnb[i].page);
+               if (maxidx >= lnb[i].lnb_page->index) {
+                       osd_iobuf_add_page(iobuf, lnb[i].lnb_page);
+               } else {
+                       long off;
+                       char *p = kmap(lnb[i].lnb_page);
 
                        off = lnb[i].lnb_page_offset;
                        if (off)
                                memset(p, 0, off);
-                       off = (lnb[i].lnb_page_offset + lnb[i].len) &
+                       off = (lnb[i].lnb_page_offset + lnb[i].lnb_len) &
                              ~CFS_PAGE_MASK;
-                        if (off)
+                       if (off)
                                memset(p + off, 0, PAGE_CACHE_SIZE - off);
-                        kunmap(lnb[i].page);
+                       kunmap(lnb[i].lnb_page);
                }
        }
        do_gettimeofday(&end);
@@ -912,8 +904,7 @@ static int osd_write_prep(const struct lu_env *env, struct dt_object *dt,
         if (iobuf->dr_npages) {
                rc = osd_ldiskfs_map_inode_pages(inode, iobuf->dr_pages,
                                                 iobuf->dr_npages,
-                                                iobuf->dr_blocks,
-                                                0, NULL);
+                                                iobuf->dr_blocks, 0);
                 if (likely(rc == 0)) {
                         rc = osd_do_bio(osd, inode, iobuf);
                         /* do IO stats for preparation reads */
@@ -975,7 +966,7 @@ static int osd_declare_write_commit(const struct lu_env *env,
         /* calculate number of extents (probably better to pass nb) */
        for (i = 0; i < npages; i++) {
                if (i && lnb[i].lnb_file_offset !=
-                   lnb[i - 1].lnb_file_offset + lnb[i - 1].len)
+                   lnb[i - 1].lnb_file_offset + lnb[i - 1].lnb_len)
                        extents++;
 
                if (!osd_is_mapped(inode, lnb[i].lnb_file_offset))
@@ -990,8 +981,8 @@ static int osd_declare_write_commit(const struct lu_env *env,
                 *
                 * XXX we could handle this on per-lnb basis as done by
                 * grant. */
-               if ((lnb[i].flags & OBD_BRW_NOQUOTA) ||
-                   (lnb[i].flags & (OBD_BRW_FROM_GRANT | OBD_BRW_SYNC)) ==
+               if ((lnb[i].lnb_flags & OBD_BRW_NOQUOTA) ||
+                   (lnb[i].lnb_flags & (OBD_BRW_FROM_GRANT | OBD_BRW_SYNC)) ==
                    OBD_BRW_FROM_GRANT)
                        ignore_quota = true;
        }
@@ -1001,7 +992,7 @@ static int osd_declare_write_commit(const struct lu_env *env,
          * 5 is max tree depth: inode + 4 index blocks
          * with blockmaps, depth is 3 at most
          */
-        if (LDISKFS_I(inode)->i_flags & LDISKFS_EXTENTS_FL) {
+       if (ldiskfs_test_inode_flag(inode, LDISKFS_INODE_EXTENTS)) {
                 /*
                  * many concurrent threads may grow tree by the time
                  * our transaction starts. so, consider 2 is a min depth
@@ -1039,9 +1030,9 @@ static int osd_declare_write_commit(const struct lu_env *env,
                 oh->ot_credits += newblocks;
 
        /* make sure the over quota flags were not set */
-       lnb[0].flags &= ~(OBD_BRW_OVER_USRQUOTA | OBD_BRW_OVER_GRPQUOTA);
+       lnb[0].lnb_flags &= ~(OBD_BRW_OVER_USRQUOTA | OBD_BRW_OVER_GRPQUOTA);
 
-       rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid,
+       rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
                                   quota_space, oh, true, true, &flags,
                                   ignore_quota);
 
@@ -1049,9 +1040,9 @@ static int osd_declare_write_commit(const struct lu_env *env,
         * now, once we support multiple objects BRW, this code needs be
         * revised. */
        if (flags & QUOTA_FL_OVER_USRQUOTA)
-               lnb[0].flags |= OBD_BRW_OVER_USRQUOTA;
+               lnb[0].lnb_flags |= OBD_BRW_OVER_USRQUOTA;
        if (flags & QUOTA_FL_OVER_GRPQUOTA)
-               lnb[0].flags |= OBD_BRW_OVER_GRPQUOTA;
+               lnb[0].lnb_flags |= OBD_BRW_OVER_GRPQUOTA;
 
        RETURN(rc);
 }
@@ -1078,37 +1069,38 @@ static int osd_write_commit(const struct lu_env *env, struct dt_object *dt,
        ll_vfs_dq_init(inode);
 
         for (i = 0; i < npages; i++) {
-                if (lnb[i].rc == -ENOSPC &&
+               if (lnb[i].lnb_rc == -ENOSPC &&
                    osd_is_mapped(inode, lnb[i].lnb_file_offset)) {
-                        /* Allow the write to proceed if overwriting an
-                         * existing block */
-                        lnb[i].rc = 0;
-                }
+                       /* Allow the write to proceed if overwriting an
+                        * existing block */
+                       lnb[i].lnb_rc = 0;
+               }
 
-                if (lnb[i].rc) { /* ENOSPC, network RPC error, etc. */
-                        CDEBUG(D_INODE, "Skipping [%d] == %d\n", i,
-                               lnb[i].rc);
-                        LASSERT(lnb[i].page);
-                        generic_error_remove_page(inode->i_mapping,lnb[i].page);
-                        continue;
-                }
+               if (lnb[i].lnb_rc) { /* ENOSPC, network RPC error, etc. */
+                       CDEBUG(D_INODE, "Skipping [%d] == %d\n", i,
+                              lnb[i].lnb_rc);
+                       LASSERT(lnb[i].lnb_page);
+                       generic_error_remove_page(inode->i_mapping,
+                                                 lnb[i].lnb_page);
+                       continue;
+               }
 
-                LASSERT(PageLocked(lnb[i].page));
-                LASSERT(!PageWriteback(lnb[i].page));
+               LASSERT(PageLocked(lnb[i].lnb_page));
+               LASSERT(!PageWriteback(lnb[i].lnb_page));
 
-               if (lnb[i].lnb_file_offset + lnb[i].len > isize)
-                       isize = lnb[i].lnb_file_offset + lnb[i].len;
+               if (lnb[i].lnb_file_offset + lnb[i].lnb_len > isize)
+                       isize = lnb[i].lnb_file_offset + lnb[i].lnb_len;
 
-                /*
-                 * Since write and truncate are serialized by oo_sem, even
-                 * partial-page truncate should not leave dirty pages in the
-                 * page cache.
-                 */
-                LASSERT(!PageDirty(lnb[i].page));
+               /*
+                * Since write and truncate are serialized by oo_sem, even
+                * partial-page truncate should not leave dirty pages in the
+                * page cache.
+                */
+               LASSERT(!PageDirty(lnb[i].lnb_page));
 
-                SetPageUptodate(lnb[i].page);
+               SetPageUptodate(lnb[i].lnb_page);
 
-                osd_iobuf_add_page(iobuf, lnb[i].page);
+               osd_iobuf_add_page(iobuf, lnb[i].lnb_page);
         }
 
         if (OBD_FAIL_CHECK(OBD_FAIL_OST_MAPBLK_ENOSPC)) {
@@ -1116,8 +1108,7 @@ static int osd_write_commit(const struct lu_env *env, struct dt_object *dt,
         } else if (iobuf->dr_npages > 0) {
                rc = osd_ldiskfs_map_inode_pages(inode, iobuf->dr_pages,
                                                 iobuf->dr_npages,
-                                                iobuf->dr_blocks,
-                                                1, NULL);
+                                                iobuf->dr_blocks, 1);
         } else {
                 /* no pages to write, no transno is needed */
                 thandle->th_local = 1;
@@ -1140,14 +1131,15 @@ static int osd_write_commit(const struct lu_env *env, struct dt_object *dt,
         if (unlikely(rc != 0)) {
                 /* if write fails, we should drop pages from the cache */
                 for (i = 0; i < npages; i++) {
-                        if (lnb[i].page == NULL)
-                                continue;
-                        LASSERT(PageLocked(lnb[i].page));
-                        generic_error_remove_page(inode->i_mapping,lnb[i].page);
-                }
-        }
+                       if (lnb[i].lnb_page == NULL)
+                               continue;
+                       LASSERT(PageLocked(lnb[i].lnb_page));
+                       generic_error_remove_page(inode->i_mapping,
+                                                 lnb[i].lnb_page);
+               }
+       }
 
-        RETURN(rc);
+       RETURN(rc);
 }
 
 static int osd_read_prep(const struct lu_env *env, struct dt_object *dt,
@@ -1159,7 +1151,7 @@ static int osd_read_prep(const struct lu_env *env, struct dt_object *dt,
         struct osd_device *osd = osd_obj2dev(osd_dt_obj(dt));
         struct timeval start, end;
         unsigned long timediff;
-        int rc = 0, i, m = 0, cache = 0;
+       int rc = 0, i, m = 0, cache = 0, cache_hits = 0, cache_misses = 0;
 
         LASSERT(inode);
 
@@ -1176,38 +1168,47 @@ static int osd_read_prep(const struct lu_env *env, struct dt_object *dt,
        for (i = 0; i < npages; i++) {
 
                if (i_size_read(inode) <= lnb[i].lnb_file_offset)
-                        /* If there's no more data, abort early.
-                         * lnb->rc == 0, so it's easy to detect later. */
-                        break;
+                       /* If there's no more data, abort early.
+                        * lnb->lnb_rc == 0, so it's easy to detect later. */
+                       break;
+
+               if (i_size_read(inode) <
+                   lnb[i].lnb_file_offset + lnb[i].lnb_len - 1)
+                       lnb[i].lnb_rc = i_size_read(inode) -
+                               lnb[i].lnb_file_offset;
+               else
+                       lnb[i].lnb_rc = lnb[i].lnb_len;
+               m += lnb[i].lnb_len;
+
+               if (PageUptodate(lnb[i].lnb_page)) {
+                       cache_hits++;
+               } else {
+                       cache_misses++;
+                       osd_iobuf_add_page(iobuf, lnb[i].lnb_page);
+               }
 
-                if (i_size_read(inode) <
-                   lnb[i].lnb_file_offset + lnb[i].len - 1)
-                       lnb[i].rc = i_size_read(inode) - lnb[i].lnb_file_offset;
-                else
-                        lnb[i].rc = lnb[i].len;
-                m += lnb[i].len;
-
-                lprocfs_counter_add(osd->od_stats, LPROC_OSD_CACHE_ACCESS, 1);
-                if (PageUptodate(lnb[i].page)) {
-                        lprocfs_counter_add(osd->od_stats,
-                                            LPROC_OSD_CACHE_HIT, 1);
-                } else {
-                        lprocfs_counter_add(osd->od_stats,
-                                            LPROC_OSD_CACHE_MISS, 1);
-                        osd_iobuf_add_page(iobuf, lnb[i].page);
-                }
                if (cache == 0)
-                       generic_error_remove_page(inode->i_mapping,lnb[i].page);
+                       generic_error_remove_page(inode->i_mapping,
+                                                 lnb[i].lnb_page);
        }
        do_gettimeofday(&end);
        timediff = cfs_timeval_sub(&end, &start, NULL);
        lprocfs_counter_add(osd->od_stats, LPROC_OSD_GET_PAGE, timediff);
 
+       if (cache_hits != 0)
+               lprocfs_counter_add(osd->od_stats, LPROC_OSD_CACHE_HIT,
+                                   cache_hits);
+       if (cache_misses != 0)
+               lprocfs_counter_add(osd->od_stats, LPROC_OSD_CACHE_MISS,
+                                   cache_misses);
+       if (cache_hits + cache_misses != 0)
+               lprocfs_counter_add(osd->od_stats, LPROC_OSD_CACHE_ACCESS,
+                                   cache_hits + cache_misses);
+
         if (iobuf->dr_npages) {
                rc = osd_ldiskfs_map_inode_pages(inode, iobuf->dr_pages,
                                                 iobuf->dr_npages,
-                                                iobuf->dr_blocks,
-                                                0, NULL);
+                                                iobuf->dr_blocks, 0);
                 rc = osd_do_bio(osd, inode, iobuf);
 
                 /* IO stats will be done in osd_bufs_put() */
@@ -1314,11 +1315,11 @@ static inline int osd_extents_enabled(struct super_block *sb,
                                      struct inode *inode)
 {
        if (inode != NULL) {
-               if (LDISKFS_I(inode)->i_flags & LDISKFS_EXTENTS_FL)
+               if (ldiskfs_test_inode_flag(inode, LDISKFS_INODE_EXTENTS))
                        return 1;
-       } else if (test_opt(sb, EXTENTS)) {
+       } else if (LDISKFS_HAS_INCOMPAT_FEATURE(sb,
+                                       LDISKFS_FEATURE_INCOMPAT_EXTENTS))
                return 1;
-       }
        return 0;
 }
 
@@ -1451,8 +1452,9 @@ out:
         * as llog or last_rcvd files. We needn't enforce quota on those
         * objects, so always set the lqi_space as 0. */
        if (inode != NULL)
-               rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid,
-                                          0, oh, true, true, NULL, false);
+               rc = osd_declare_inode_qid(env, i_uid_read(inode),
+                                          i_gid_read(inode), 0, oh, true,
+                                          true, NULL, false);
        RETURN(rc);
 }
 
@@ -1512,9 +1514,9 @@ int osd_ldiskfs_write_record(struct inode *inode, void *buf, int bufsize,
                                err);
                         break;
                 }
-                LASSERTF(boffs + size <= bh->b_size,
-                         "boffs %d size %d bh->b_size %lu",
-                         boffs, size, (unsigned long)bh->b_size);
+               LASSERTF(boffs + size <= bh->b_size,
+                        "boffs %d size %d bh->b_size %lu\n",
+                        boffs, size, (unsigned long)bh->b_size);
                 memcpy(bh->b_data + boffs, buf, size);
                 err = ldiskfs_journal_dirty_metadata(handle, bh);
                 if (err)
@@ -1616,8 +1618,8 @@ static int osd_declare_punch(const struct lu_env *env, struct dt_object *dt,
        inode = osd_dt_obj(dt)->oo_inode;
        LASSERT(inode);
 
-       rc = osd_declare_inode_qid(env, inode->i_uid, inode->i_gid, 0, oh,
-                                  true, true, NULL, false);
+       rc = osd_declare_inode_qid(env, i_uid_read(inode), i_gid_read(inode),
+                                  0, oh, true, true, NULL, false);
        RETURN(rc);
 }