Btrfs: Always use 64bit inode number
Li Zefan [Wed, 20 Apr 2011 02:31:50 +0000 (10:31 +0800)]
There's a potential problem in 32bit system when we exhaust 32bit inode
numbers and start to allocate big inode numbers, because btrfs uses
inode->i_ino in many places.

So here we always use BTRFS_I(inode)->location.objectid, which is an
u64 variable.

There are 2 exceptions that BTRFS_I(inode)->location.objectid !=
inode->i_ino: the btree inode (0 vs 1) and empty subvol dirs (256 vs 2),
and inode->i_ino will be used in those cases.

Another reason to make this change is I'm going to use a special inode
to save free ino cache, and the inode number must be > (u64)-256.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>

13 files changed:
fs/btrfs/btrfs_inode.h
fs/btrfs/compression.c
fs/btrfs/export.c
fs/btrfs/extent-tree.c
fs/btrfs/extent_io.c
fs/btrfs/file-item.c
fs/btrfs/file.c
fs/btrfs/inode.c
fs/btrfs/ioctl.c
fs/btrfs/relocation.c
fs/btrfs/transaction.c
fs/btrfs/tree-log.c
fs/btrfs/xattr.c

index 57c3bb2..8842a41 100644 (file)
@@ -166,6 +166,15 @@ static inline struct btrfs_inode *BTRFS_I(struct inode *inode)
        return container_of(inode, struct btrfs_inode, vfs_inode);
 }
 
+static inline u64 btrfs_ino(struct inode *inode)
+{
+       u64 ino = BTRFS_I(inode)->location.objectid;
+
+       if (ino <= BTRFS_FIRST_FREE_OBJECTID)
+               ino = inode->i_ino;
+       return ino;
+}
+
 static inline void btrfs_i_size_write(struct inode *inode, u64 size)
 {
        i_size_write(inode, size);
index 41d1d7c..369d506 100644 (file)
@@ -125,9 +125,10 @@ static int check_compressed_csum(struct inode *inode,
                kunmap_atomic(kaddr, KM_USER0);
 
                if (csum != *cb_sum) {
-                       printk(KERN_INFO "btrfs csum failed ino %lu "
+                       printk(KERN_INFO "btrfs csum failed ino %llu "
                               "extent %llu csum %u "
-                              "wanted %u mirror %d\n", inode->i_ino,
+                              "wanted %u mirror %d\n",
+                              (unsigned long long)btrfs_ino(inode),
                               (unsigned long long)disk_start,
                               csum, *cb_sum, cb->mirror_num);
                        ret = -EIO;
index ff27d7a..7fa283e 100644 (file)
@@ -28,7 +28,7 @@ static int btrfs_encode_fh(struct dentry *dentry, u32 *fh, int *max_len,
        len  = BTRFS_FID_SIZE_NON_CONNECTABLE;
        type = FILEID_BTRFS_WITHOUT_PARENT;
 
-       fid->objectid = inode->i_ino;
+       fid->objectid = btrfs_ino(inode);
        fid->root_objectid = BTRFS_I(inode)->root->objectid;
        fid->gen = inode->i_generation;
 
@@ -174,13 +174,13 @@ static struct dentry *btrfs_get_parent(struct dentry *child)
        if (!path)
                return ERR_PTR(-ENOMEM);
 
-       if (dir->i_ino == BTRFS_FIRST_FREE_OBJECTID) {
+       if (btrfs_ino(dir) == BTRFS_FIRST_FREE_OBJECTID) {
                key.objectid = root->root_key.objectid;
                key.type = BTRFS_ROOT_BACKREF_KEY;
                key.offset = (u64)-1;
                root = root->fs_info->tree_root;
        } else {
-               key.objectid = dir->i_ino;
+               key.objectid = btrfs_ino(dir);
                key.type = BTRFS_INODE_REF_KEY;
                key.offset = (u64)-1;
        }
@@ -240,6 +240,7 @@ static int btrfs_get_name(struct dentry *parent, char *name,
        struct btrfs_key key;
        int name_len;
        int ret;
+       u64 ino;
 
        if (!dir || !inode)
                return -EINVAL;
@@ -247,19 +248,21 @@ static int btrfs_get_name(struct dentry *parent, char *name,
        if (!S_ISDIR(dir->i_mode))
                return -EINVAL;
 
+       ino = btrfs_ino(inode);
+
        path = btrfs_alloc_path();
        if (!path)
                return -ENOMEM;
        path->leave_spinning = 1;
 
-       if (inode->i_ino == BTRFS_FIRST_FREE_OBJECTID) {
+       if (ino == BTRFS_FIRST_FREE_OBJECTID) {
                key.objectid = BTRFS_I(inode)->root->root_key.objectid;
                key.type = BTRFS_ROOT_BACKREF_KEY;
                key.offset = (u64)-1;
                root = root->fs_info->tree_root;
        } else {
-               key.objectid = inode->i_ino;
-               key.offset = dir->i_ino;
+               key.objectid = ino;
+               key.offset = btrfs_ino(dir);
                key.type = BTRFS_INODE_REF_KEY;
        }
 
@@ -268,7 +271,7 @@ static int btrfs_get_name(struct dentry *parent, char *name,
                btrfs_free_path(path);
                return ret;
        } else if (ret > 0) {
-               if (inode->i_ino == BTRFS_FIRST_FREE_OBJECTID) {
+               if (ino == BTRFS_FIRST_FREE_OBJECTID) {
                        path->slots[0]--;
                } else {
                        btrfs_free_path(path);
@@ -277,11 +280,11 @@ static int btrfs_get_name(struct dentry *parent, char *name,
        }
        leaf = path->nodes[0];
 
-       if (inode->i_ino == BTRFS_FIRST_FREE_OBJECTID) {
-              rref = btrfs_item_ptr(leaf, path->slots[0],
+       if (ino == BTRFS_FIRST_FREE_OBJECTID) {
+               rref = btrfs_item_ptr(leaf, path->slots[0],
                                     struct btrfs_root_ref);
-              name_ptr = (unsigned long)(rref + 1);
-              name_len = btrfs_root_ref_name_len(leaf, rref);
+               name_ptr = (unsigned long)(rref + 1);
+               name_len = btrfs_root_ref_name_len(leaf, rref);
        } else {
                iref = btrfs_item_ptr(leaf, path->slots[0],
                                      struct btrfs_inode_ref);
index 904eae1..a0e818c 100644 (file)
@@ -7009,8 +7009,8 @@ static noinline int get_new_locations(struct inode *reloc_inode,
 
        cur_pos = extent_key->objectid - offset;
        last_byte = extent_key->objectid + extent_key->offset;
-       ret = btrfs_lookup_file_extent(NULL, root, path, reloc_inode->i_ino,
-                                      cur_pos, 0);
+       ret = btrfs_lookup_file_extent(NULL, root, path,
+                                      btrfs_ino(reloc_inode), cur_pos, 0);
        if (ret < 0)
                goto out;
        if (ret > 0) {
@@ -7033,7 +7033,7 @@ static noinline int get_new_locations(struct inode *reloc_inode,
                btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
                if (found_key.offset != cur_pos ||
                    found_key.type != BTRFS_EXTENT_DATA_KEY ||
-                   found_key.objectid != reloc_inode->i_ino)
+                   found_key.objectid != btrfs_ino(reloc_inode))
                        break;
 
                fi = btrfs_item_ptr(leaf, path->slots[0],
@@ -7179,7 +7179,7 @@ next:
                                break;
                }
 
-               if (inode && key.objectid != inode->i_ino) {
+               if (inode && key.objectid != btrfs_ino(inode)) {
                        BUG_ON(extent_locked);
                        btrfs_release_path(root, path);
                        mutex_unlock(&inode->i_mutex);
@@ -7488,7 +7488,7 @@ static noinline int invalidate_extent_cache(struct btrfs_root *root,
                        continue;
                if (btrfs_file_extent_disk_bytenr(leaf, fi) == 0)
                        continue;
-               if (!inode || inode->i_ino != key.objectid) {
+               if (!inode || btrfs_ino(inode) != key.objectid) {
                        iput(inode);
                        inode = btrfs_ilookup(target_root->fs_info->sb,
                                              key.objectid, target_root, 1);
index 5ae0bff..41d313a 100644 (file)
@@ -3030,7 +3030,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
         * because there might be preallocation past i_size
         */
        ret = btrfs_lookup_file_extent(NULL, BTRFS_I(inode)->root,
-                                      path, inode->i_ino, -1, 0);
+                                      path, btrfs_ino(inode), -1, 0);
        if (ret < 0) {
                btrfs_free_path(path);
                return ret;
@@ -3043,7 +3043,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
        found_type = btrfs_key_type(&found_key);
 
        /* No extents, but there might be delalloc bits */
-       if (found_key.objectid != inode->i_ino ||
+       if (found_key.objectid != btrfs_ino(inode) ||
            found_type != BTRFS_EXTENT_DATA_KEY) {
                /* have to trust i_size as the end */
                last = (u64)-1;
index a6a9d4e..1d9410e 100644 (file)
@@ -208,8 +208,9 @@ static int __btrfs_lookup_bio_sums(struct btrfs_root *root,
                                                EXTENT_NODATASUM, GFP_NOFS);
                                } else {
                                        printk(KERN_INFO "btrfs no csum found "
-                                              "for inode %lu start %llu\n",
-                                              inode->i_ino,
+                                              "for inode %llu start %llu\n",
+                                              (unsigned long long)
+                                              btrfs_ino(inode),
                                               (unsigned long long)offset);
                                }
                                item = NULL;
index 75899a0..bef0204 100644 (file)
@@ -298,6 +298,7 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
        struct btrfs_path *path;
        struct btrfs_key key;
        struct btrfs_key new_key;
+       u64 ino = btrfs_ino(inode);
        u64 search_start = start;
        u64 disk_bytenr = 0;
        u64 num_bytes = 0;
@@ -318,14 +319,14 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
 
        while (1) {
                recow = 0;
-               ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino,
+               ret = btrfs_lookup_file_extent(trans, root, path, ino,
                                               search_start, -1);
                if (ret < 0)
                        break;
                if (ret > 0 && path->slots[0] > 0 && search_start == start) {
                        leaf = path->nodes[0];
                        btrfs_item_key_to_cpu(leaf, &key, path->slots[0] - 1);
-                       if (key.objectid == inode->i_ino &&
+                       if (key.objectid == ino &&
                            key.type == BTRFS_EXTENT_DATA_KEY)
                                path->slots[0]--;
                }
@@ -346,7 +347,7 @@ next_slot:
                }
 
                btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
-               if (key.objectid > inode->i_ino ||
+               if (key.objectid > ino ||
                    key.type > BTRFS_EXTENT_DATA_KEY || key.offset >= end)
                        break;
 
@@ -592,6 +593,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
        int del_slot = 0;
        int recow;
        int ret;
+       u64 ino = btrfs_ino(inode);
 
        btrfs_drop_extent_cache(inode, start, end - 1, 0);
 
@@ -600,7 +602,7 @@ int btrfs_mark_extent_written(struct btrfs_trans_handle *trans,
 again:
        recow = 0;
        split = start;
-       key.objectid = inode->i_ino;
+       key.objectid = ino;
        key.type = BTRFS_EXTENT_DATA_KEY;
        key.offset = split;
 
@@ -612,8 +614,7 @@ again:
 
        leaf = path->nodes[0];
        btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
-       BUG_ON(key.objectid != inode->i_ino ||
-              key.type != BTRFS_EXTENT_DATA_KEY);
+       BUG_ON(key.objectid != ino || key.type != BTRFS_EXTENT_DATA_KEY);
        fi = btrfs_item_ptr(leaf, path->slots[0],
                            struct btrfs_file_extent_item);
        BUG_ON(btrfs_file_extent_type(leaf, fi) !=
@@ -630,7 +631,7 @@ again:
                other_start = 0;
                other_end = start;
                if (extent_mergeable(leaf, path->slots[0] - 1,
-                                    inode->i_ino, bytenr, orig_offset,
+                                    ino, bytenr, orig_offset,
                                     &other_start, &other_end)) {
                        new_key.offset = end;
                        btrfs_set_item_key_safe(trans, root, path, &new_key);
@@ -653,7 +654,7 @@ again:
                other_start = end;
                other_end = 0;
                if (extent_mergeable(leaf, path->slots[0] + 1,
-                                    inode->i_ino, bytenr, orig_offset,
+                                    ino, bytenr, orig_offset,
                                     &other_start, &other_end)) {
                        fi = btrfs_item_ptr(leaf, path->slots[0],
                                            struct btrfs_file_extent_item);
@@ -702,7 +703,7 @@ again:
 
                ret = btrfs_inc_extent_ref(trans, root, bytenr, num_bytes, 0,
                                           root->root_key.objectid,
-                                          inode->i_ino, orig_offset);
+                                          ino, orig_offset);
                BUG_ON(ret);
 
                if (split == start) {
@@ -718,7 +719,7 @@ again:
        other_start = end;
        other_end = 0;
        if (extent_mergeable(leaf, path->slots[0] + 1,
-                            inode->i_ino, bytenr, orig_offset,
+                            ino, bytenr, orig_offset,
                             &other_start, &other_end)) {
                if (recow) {
                        btrfs_release_path(root, path);
@@ -729,13 +730,13 @@ again:
                del_nr++;
                ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
                                        0, root->root_key.objectid,
-                                       inode->i_ino, orig_offset);
+                                       ino, orig_offset);
                BUG_ON(ret);
        }
        other_start = 0;
        other_end = start;
        if (extent_mergeable(leaf, path->slots[0] - 1,
-                            inode->i_ino, bytenr, orig_offset,
+                            ino, bytenr, orig_offset,
                             &other_start, &other_end)) {
                if (recow) {
                        btrfs_release_path(root, path);
@@ -746,7 +747,7 @@ again:
                del_nr++;
                ret = btrfs_free_extent(trans, root, bytenr, num_bytes,
                                        0, root->root_key.objectid,
-                                       inode->i_ino, orig_offset);
+                                       ino, orig_offset);
                BUG_ON(ret);
        }
        if (del_nr == 0) {
index 77dd0a7..adec228 100644 (file)
@@ -138,7 +138,7 @@ static noinline int insert_inline_extent(struct btrfs_trans_handle *trans,
        path->leave_spinning = 1;
        btrfs_set_trans_block_group(trans, inode);
 
-       key.objectid = inode->i_ino;
+       key.objectid = btrfs_ino(inode);
        key.offset = start;
        btrfs_set_key_type(&key, BTRFS_EXTENT_DATA_KEY);
        datasize = btrfs_file_extent_calc_inline_size(cur_size);
@@ -1049,6 +1049,7 @@ static noinline int run_delalloc_nocow(struct inode *inode,
        int nocow;
        int check_prev = 1;
        bool nolock = false;
+       u64 ino = btrfs_ino(inode);
 
        path = btrfs_alloc_path();
        BUG_ON(!path);
@@ -1063,14 +1064,14 @@ static noinline int run_delalloc_nocow(struct inode *inode,
        cow_start = (u64)-1;
        cur_offset = start;
        while (1) {
-               ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino,
+               ret = btrfs_lookup_file_extent(trans, root, path, ino,
                                               cur_offset, 0);
                BUG_ON(ret < 0);
                if (ret > 0 && path->slots[0] > 0 && check_prev) {
                        leaf = path->nodes[0];
                        btrfs_item_key_to_cpu(leaf, &found_key,
                                              path->slots[0] - 1);
-                       if (found_key.objectid == inode->i_ino &&
+                       if (found_key.objectid == ino &&
                            found_key.type == BTRFS_EXTENT_DATA_KEY)
                                path->slots[0]--;
                }
@@ -1091,7 +1092,7 @@ next_slot:
                num_bytes = 0;
                btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
 
-               if (found_key.objectid > inode->i_ino ||
+               if (found_key.objectid > ino ||
                    found_key.type > BTRFS_EXTENT_DATA_KEY ||
                    found_key.offset > end)
                        break;
@@ -1126,7 +1127,7 @@ next_slot:
                                goto out_check;
                        if (btrfs_extent_readonly(root, disk_bytenr))
                                goto out_check;
-                       if (btrfs_cross_ref_exist(trans, root, inode->i_ino,
+                       if (btrfs_cross_ref_exist(trans, root, ino,
                                                  found_key.offset -
                                                  extent_offset, disk_bytenr))
                                goto out_check;
@@ -1643,7 +1644,7 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
                                 &hint, 0);
        BUG_ON(ret);
 
-       ins.objectid = inode->i_ino;
+       ins.objectid = btrfs_ino(inode);
        ins.offset = file_pos;
        ins.type = BTRFS_EXTENT_DATA_KEY;
        ret = btrfs_insert_empty_item(trans, root, path, &ins, sizeof(*fi));
@@ -1674,7 +1675,7 @@ static int insert_reserved_file_extent(struct btrfs_trans_handle *trans,
        ins.type = BTRFS_EXTENT_ITEM_KEY;
        ret = btrfs_alloc_reserved_file_extent(trans, root,
                                        root->root_key.objectid,
-                                       inode->i_ino, file_pos, &ins);
+                                       btrfs_ino(inode), file_pos, &ins);
        BUG_ON(ret);
        btrfs_free_path(path);
 
@@ -2004,8 +2005,9 @@ good:
 
 zeroit:
        if (printk_ratelimit()) {
-               printk(KERN_INFO "btrfs csum failed ino %lu off %llu csum %u "
-                      "private %llu\n", page->mapping->host->i_ino,
+               printk(KERN_INFO "btrfs csum failed ino %llu off %llu csum %u "
+                      "private %llu\n",
+                      (unsigned long long)btrfs_ino(page->mapping->host),
                       (unsigned long long)start, csum,
                       (unsigned long long)private);
        }
@@ -2243,7 +2245,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
 
        /* insert an orphan item to track this unlinked/truncated file */
        if (insert >= 1) {
-               ret = btrfs_insert_orphan_item(trans, root, inode->i_ino);
+               ret = btrfs_insert_orphan_item(trans, root, btrfs_ino(inode));
                BUG_ON(ret);
        }
 
@@ -2280,7 +2282,7 @@ int btrfs_orphan_del(struct btrfs_trans_handle *trans, struct inode *inode)
        spin_unlock(&root->orphan_lock);
 
        if (trans && delete_item) {
-               ret = btrfs_del_orphan_item(trans, root, inode->i_ino);
+               ret = btrfs_del_orphan_item(trans, root, btrfs_ino(inode));
                BUG_ON(ret);
        }
 
@@ -2542,7 +2544,8 @@ static void btrfs_read_locked_inode(struct inode *inode)
         * try to precache a NULL acl entry for files that don't have
         * any xattrs or acls
         */
-       maybe_acls = acls_after_inode_item(leaf, path->slots[0], inode->i_ino);
+       maybe_acls = acls_after_inode_item(leaf, path->slots[0],
+                                          btrfs_ino(inode));
        if (!maybe_acls)
                cache_no_acl(inode);
 
@@ -2688,6 +2691,8 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
        struct btrfs_dir_item *di;
        struct btrfs_key key;
        u64 index;
+       u64 ino = btrfs_ino(inode);
+       u64 dir_ino = btrfs_ino(dir);
 
        path = btrfs_alloc_path();
        if (!path) {
@@ -2696,7 +2701,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
        }
 
        path->leave_spinning = 1;
-       di = btrfs_lookup_dir_item(trans, root, path, dir->i_ino,
+       di = btrfs_lookup_dir_item(trans, root, path, dir_ino,
                                    name, name_len, -1);
        if (IS_ERR(di)) {
                ret = PTR_ERR(di);
@@ -2713,17 +2718,16 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
                goto err;
        btrfs_release_path(root, path);
 
-       ret = btrfs_del_inode_ref(trans, root, name, name_len,
-                                 inode->i_ino,
-                                 dir->i_ino, &index);
+       ret = btrfs_del_inode_ref(trans, root, name, name_len, ino,
+                                 dir_ino, &index);
        if (ret) {
                printk(KERN_INFO "btrfs failed to delete reference to %.*s, "
-                      "inode %lu parent %lu\n", name_len, name,
-                      inode->i_ino, dir->i_ino);
+                      "inode %llu parent %llu\n", name_len, name,
+                      (unsigned long long)ino, (unsigned long long)dir_ino);
                goto err;
        }
 
-       di = btrfs_lookup_dir_index_item(trans, root, path, dir->i_ino,
+       di = btrfs_lookup_dir_index_item(trans, root, path, dir_ino,
                                         index, name, name_len, -1);
        if (IS_ERR(di)) {
                ret = PTR_ERR(di);
@@ -2737,7 +2741,7 @@ static int __btrfs_unlink_inode(struct btrfs_trans_handle *trans,
        btrfs_release_path(root, path);
 
        ret = btrfs_del_inode_ref_in_log(trans, root, name, name_len,
-                                        inode, dir->i_ino);
+                                        inode, dir_ino);
        BUG_ON(ret != 0 && ret != -ENOENT);
 
        ret = btrfs_del_dir_entries_in_log(trans, root, name, name_len,
@@ -2815,12 +2819,14 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
        int check_link = 1;
        int err = -ENOSPC;
        int ret;
+       u64 ino = btrfs_ino(inode);
+       u64 dir_ino = btrfs_ino(dir);
 
        trans = btrfs_start_transaction(root, 10);
        if (!IS_ERR(trans) || PTR_ERR(trans) != -ENOSPC)
                return trans;
 
-       if (inode->i_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
+       if (ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
                return ERR_PTR(-ENOSPC);
 
        /* check if there is someone else holds reference */
@@ -2879,7 +2885,7 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
 
        if (ret == 0 && S_ISREG(inode->i_mode)) {
                ret = btrfs_lookup_file_extent(trans, root, path,
-                                              inode->i_ino, (u64)-1, 0);
+                                              ino, (u64)-1, 0);
                if (ret < 0) {
                        err = ret;
                        goto out;
@@ -2895,7 +2901,7 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
                goto out;
        }
 
-       di = btrfs_lookup_dir_item(trans, root, path, dir->i_ino,
+       di = btrfs_lookup_dir_item(trans, root, path, dir_ino,
                                dentry->d_name.name, dentry->d_name.len, 0);
        if (IS_ERR(di)) {
                err = PTR_ERR(di);
@@ -2912,7 +2918,7 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
 
        ref = btrfs_lookup_inode_ref(trans, root, path,
                                dentry->d_name.name, dentry->d_name.len,
-                               inode->i_ino, dir->i_ino, 0);
+                               ino, dir_ino, 0);
        if (IS_ERR(ref)) {
                err = PTR_ERR(ref);
                goto out;
@@ -2923,7 +2929,7 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
        index = btrfs_inode_ref_index(path->nodes[0], ref);
        btrfs_release_path(root, path);
 
-       di = btrfs_lookup_dir_index_item(trans, root, path, dir->i_ino, index,
+       di = btrfs_lookup_dir_index_item(trans, root, path, dir_ino, index,
                                dentry->d_name.name, dentry->d_name.len, 0);
        if (IS_ERR(di)) {
                err = PTR_ERR(di);
@@ -2998,12 +3004,13 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
        struct btrfs_key key;
        u64 index;
        int ret;
+       u64 dir_ino = btrfs_ino(dir);
 
        path = btrfs_alloc_path();
        if (!path)
                return -ENOMEM;
 
-       di = btrfs_lookup_dir_item(trans, root, path, dir->i_ino,
+       di = btrfs_lookup_dir_item(trans, root, path, dir_ino,
                                   name, name_len, -1);
        BUG_ON(!di || IS_ERR(di));
 
@@ -3016,10 +3023,10 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
 
        ret = btrfs_del_root_ref(trans, root->fs_info->tree_root,
                                 objectid, root->root_key.objectid,
-                                dir->i_ino, &index, name, name_len);
+                                dir_ino, &index, name, name_len);
        if (ret < 0) {
                BUG_ON(ret != -ENOENT);
-               di = btrfs_search_dir_index_item(root, path, dir->i_ino,
+               di = btrfs_search_dir_index_item(root, path, dir_ino,
                                                 name, name_len);
                BUG_ON(!di || IS_ERR(di));
 
@@ -3029,7 +3036,7 @@ int btrfs_unlink_subvol(struct btrfs_trans_handle *trans,
                index = key.offset;
        }
 
-       di = btrfs_lookup_dir_index_item(trans, root, path, dir->i_ino,
+       di = btrfs_lookup_dir_index_item(trans, root, path, dir_ino,
                                         index, name, name_len, -1);
        BUG_ON(!di || IS_ERR(di));
 
@@ -3058,7 +3065,7 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
        unsigned long nr = 0;
 
        if (inode->i_size > BTRFS_EMPTY_DIR_SIZE ||
-           inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
+           btrfs_ino(inode) == BTRFS_FIRST_FREE_OBJECTID)
                return -ENOTEMPTY;
 
        trans = __unlink_start_trans(dir, dentry);
@@ -3067,7 +3074,7 @@ static int btrfs_rmdir(struct inode *dir, struct dentry *dentry)
 
        btrfs_set_trans_block_group(trans, dir);
 
-       if (unlikely(inode->i_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
+       if (unlikely(btrfs_ino(inode) == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
                err = btrfs_unlink_subvol(trans, root, dir,
                                          BTRFS_I(inode)->location.objectid,
                                          dentry->d_name.name,
@@ -3299,6 +3306,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
        int encoding;
        int ret;
        int err = 0;
+       u64 ino = btrfs_ino(inode);
 
        BUG_ON(new_size > 0 && min_type != BTRFS_EXTENT_DATA_KEY);
 
@@ -3309,7 +3317,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
        BUG_ON(!path);
        path->reada = -1;
 
-       key.objectid = inode->i_ino;
+       key.objectid = ino;
        key.offset = (u64)-1;
        key.type = (u8)-1;
 
@@ -3337,7 +3345,7 @@ search_again:
                found_type = btrfs_key_type(&found_key);
                encoding = 0;
 
-               if (found_key.objectid != inode->i_ino)
+               if (found_key.objectid != ino)
                        break;
 
                if (found_type < min_type)
@@ -3456,7 +3464,7 @@ delete:
                        ret = btrfs_free_extent(trans, root, extent_start,
                                                extent_num_bytes, 0,
                                                btrfs_header_owner(leaf),
-                                               inode->i_ino, extent_offset);
+                                               ino, extent_offset);
                        BUG_ON(ret);
                }
 
@@ -3655,7 +3663,7 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
                                break;
 
                        err = btrfs_insert_file_extent(trans, root,
-                                       inode->i_ino, cur_offset, 0,
+                                       btrfs_ino(inode), cur_offset, 0,
                                        0, hole_size, 0, hole_size,
                                        0, 0, 0);
                        if (err)
@@ -3812,7 +3820,7 @@ void btrfs_evict_inode(struct inode *inode)
 
        if (!(root == root->fs_info->tree_root ||
              root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID))
-               btrfs_return_ino(root, inode->i_ino);
+               btrfs_return_ino(root, btrfs_ino(inode));
 
        nr = trans->blocks_used;
        btrfs_end_transaction(trans, root);
@@ -3839,7 +3847,7 @@ static int btrfs_inode_by_name(struct inode *dir, struct dentry *dentry,
        path = btrfs_alloc_path();
        BUG_ON(!path);
 
-       di = btrfs_lookup_dir_item(NULL, root, path, dir->i_ino, name,
+       di = btrfs_lookup_dir_item(NULL, root, path, btrfs_ino(dir), name,
                                    namelen, 0);
        if (IS_ERR(di))
                ret = PTR_ERR(di);
@@ -3892,7 +3900,7 @@ static int fixup_tree_root_location(struct btrfs_root *root,
 
        leaf = path->nodes[0];
        ref = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_root_ref);
-       if (btrfs_root_ref_dirid(leaf, ref) != dir->i_ino ||
+       if (btrfs_root_ref_dirid(leaf, ref) != btrfs_ino(dir) ||
            btrfs_root_ref_name_len(leaf, ref) != dentry->d_name.len)
                goto out;
 
@@ -3931,6 +3939,7 @@ static void inode_tree_add(struct inode *inode)
        struct btrfs_inode *entry;
        struct rb_node **p;
        struct rb_node *parent;
+       u64 ino = btrfs_ino(inode);
 again:
        p = &root->inode_tree.rb_node;
        parent = NULL;
@@ -3943,9 +3952,9 @@ again:
                parent = *p;
                entry = rb_entry(parent, struct btrfs_inode, rb_node);
 
-               if (inode->i_ino < entry->vfs_inode.i_ino)
+               if (ino < btrfs_ino(&entry->vfs_inode))
                        p = &parent->rb_left;
-               else if (inode->i_ino > entry->vfs_inode.i_ino)
+               else if (ino > btrfs_ino(&entry->vfs_inode))
                        p = &parent->rb_right;
                else {
                        WARN_ON(!(entry->vfs_inode.i_state &
@@ -4009,9 +4018,9 @@ again:
                prev = node;
                entry = rb_entry(node, struct btrfs_inode, rb_node);
 
-               if (objectid < entry->vfs_inode.i_ino)
+               if (objectid < btrfs_ino(&entry->vfs_inode))
                        node = node->rb_left;
-               else if (objectid > entry->vfs_inode.i_ino)
+               else if (objectid > btrfs_ino(&entry->vfs_inode))
                        node = node->rb_right;
                else
                        break;
@@ -4019,7 +4028,7 @@ again:
        if (!node) {
                while (prev) {
                        entry = rb_entry(prev, struct btrfs_inode, rb_node);
-                       if (objectid <= entry->vfs_inode.i_ino) {
+                       if (objectid <= btrfs_ino(&entry->vfs_inode)) {
                                node = prev;
                                break;
                        }
@@ -4028,7 +4037,7 @@ again:
        }
        while (node) {
                entry = rb_entry(node, struct btrfs_inode, rb_node);
-               objectid = entry->vfs_inode.i_ino + 1;
+               objectid = btrfs_ino(&entry->vfs_inode) + 1;
                inode = igrab(&entry->vfs_inode);
                if (inode) {
                        spin_unlock(&root->inode_lock);
@@ -4066,7 +4075,7 @@ static int btrfs_init_locked_inode(struct inode *inode, void *p)
 static int btrfs_find_actor(struct inode *inode, void *opaque)
 {
        struct btrfs_iget_args *args = opaque;
-       return args->ino == inode->i_ino &&
+       return args->ino == btrfs_ino(inode) &&
                args->root == BTRFS_I(inode)->root;
 }
 
@@ -4244,9 +4253,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
 
        /* special case for "." */
        if (filp->f_pos == 0) {
-               over = filldir(dirent, ".", 1,
-                              1, inode->i_ino,
-                              DT_DIR);
+               over = filldir(dirent, ".", 1, 1, btrfs_ino(inode), DT_DIR);
                if (over)
                        return 0;
                filp->f_pos = 1;
@@ -4265,7 +4272,7 @@ static int btrfs_real_readdir(struct file *filp, void *dirent,
 
        btrfs_set_key_type(&key, key_type);
        key.offset = filp->f_pos;
-       key.objectid = inode->i_ino;
+       key.objectid = btrfs_ino(inode);
 
        ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
        if (ret < 0)
@@ -4420,8 +4427,9 @@ void btrfs_dirty_inode(struct inode *inode)
                if (IS_ERR(trans)) {
                        if (printk_ratelimit()) {
                                printk(KERN_ERR "btrfs: fail to "
-                                      "dirty  inode %lu error %ld\n",
-                                      inode->i_ino, PTR_ERR(trans));
+                                      "dirty  inode %llu error %ld\n",
+                                      (unsigned long long)btrfs_ino(inode),
+                                      PTR_ERR(trans));
                        }
                        return;
                }
@@ -4431,8 +4439,9 @@ void btrfs_dirty_inode(struct inode *inode)
                if (ret) {
                        if (printk_ratelimit()) {
                                printk(KERN_ERR "btrfs: fail to "
-                                      "dirty  inode %lu error %d\n",
-                                      inode->i_ino, ret);
+                                      "dirty  inode %llu error %d\n",
+                                      (unsigned long long)btrfs_ino(inode),
+                                      ret);
                        }
                }
        }
@@ -4452,7 +4461,7 @@ static int btrfs_set_inode_index_count(struct inode *inode)
        struct extent_buffer *leaf;
        int ret;
 
-       key.objectid = inode->i_ino;
+       key.objectid = btrfs_ino(inode);
        btrfs_set_key_type(&key, BTRFS_DIR_INDEX_KEY);
        key.offset = (u64)-1;
 
@@ -4484,7 +4493,7 @@ static int btrfs_set_inode_index_count(struct inode *inode)
        leaf = path->nodes[0];
        btrfs_item_key_to_cpu(leaf, &found_key, path->slots[0]);
 
-       if (found_key.objectid != inode->i_ino ||
+       if (found_key.objectid != btrfs_ino(inode) ||
            btrfs_key_type(&found_key) != BTRFS_DIR_INDEX_KEY) {
                BTRFS_I(inode)->index_cnt = 2;
                goto out;
@@ -4657,29 +4666,29 @@ int btrfs_add_link(struct btrfs_trans_handle *trans,
        int ret = 0;
        struct btrfs_key key;
        struct btrfs_root *root = BTRFS_I(parent_inode)->root;
+       u64 ino = btrfs_ino(inode);
+       u64 parent_ino = btrfs_ino(parent_inode);
 
-       if (unlikely(inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)) {
+       if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
                memcpy(&key, &BTRFS_I(inode)->root->root_key, sizeof(key));
        } else {
-               key.objectid = inode->i_ino;
+               key.objectid = ino;
                btrfs_set_key_type(&key, BTRFS_INODE_ITEM_KEY);
                key.offset = 0;
        }
 
-       if (unlikely(inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)) {
+       if (unlikely(ino == BTRFS_FIRST_FREE_OBJECTID)) {
                ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,
                                         key.objectid, root->root_key.objectid,
-                                        parent_inode->i_ino,
-                                        index, name, name_len);
+                                        parent_ino, index, name, name_len);
        } else if (add_backref) {
-               ret = btrfs_insert_inode_ref(trans, root,
-                                            name, name_len, inode->i_ino,
-                                            parent_inode->i_ino, index);
+               ret = btrfs_insert_inode_ref(trans, root, name, name_len, ino,
+                                            parent_ino, index);
        }
 
        if (ret == 0) {
                ret = btrfs_insert_dir_item(trans, root, name, name_len,
-                                           parent_inode->i_ino, &key,
+                                           parent_ino, &key,
                                            btrfs_inode_type(inode), index);
                BUG_ON(ret);
 
@@ -4738,7 +4747,7 @@ static int btrfs_mknod(struct inode *dir, struct dentry *dentry,
                goto out_unlock;
 
        inode = btrfs_new_inode(trans, root, dir, dentry->d_name.name,
-                               dentry->d_name.len, dir->i_ino, objectid,
+                               dentry->d_name.len, btrfs_ino(dir), objectid,
                                BTRFS_I(dir)->block_group, mode, &index);
        err = PTR_ERR(inode);
        if (IS_ERR(inode))
@@ -4800,7 +4809,7 @@ static int btrfs_create(struct inode *dir, struct dentry *dentry,
                goto out_unlock;
 
        inode = btrfs_new_inode(trans, root, dir, dentry->d_name.name,
-                               dentry->d_name.len, dir->i_ino, objectid,
+                               dentry->d_name.len, btrfs_ino(dir), objectid,
                                BTRFS_I(dir)->block_group, mode, &index);
        err = PTR_ERR(inode);
        if (IS_ERR(inode))
@@ -4928,7 +4937,7 @@ static int btrfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
                goto out_fail;
 
        inode = btrfs_new_inode(trans, root, dir, dentry->d_name.name,
-                               dentry->d_name.len, dir->i_ino, objectid,
+                               dentry->d_name.len, btrfs_ino(dir), objectid,
                                BTRFS_I(dir)->block_group, S_IFDIR | mode,
                                &index);
        if (IS_ERR(inode)) {
@@ -5049,7 +5058,7 @@ struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
        u64 bytenr;
        u64 extent_start = 0;
        u64 extent_end = 0;
-       u64 objectid = inode->i_ino;
+       u64 objectid = btrfs_ino(inode);
        u32 found_type;
        struct btrfs_path *path = NULL;
        struct btrfs_root *root = BTRFS_I(inode)->root;
@@ -5557,7 +5566,7 @@ static noinline int can_nocow_odirect(struct btrfs_trans_handle *trans,
        if (!path)
                return -ENOMEM;
 
-       ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino,
+       ret = btrfs_lookup_file_extent(trans, root, path, btrfs_ino(inode),
                                       offset, 0);
        if (ret < 0)
                goto out;
@@ -5574,7 +5583,7 @@ static noinline int can_nocow_odirect(struct btrfs_trans_handle *trans,
        ret = 0;
        leaf = path->nodes[0];
        btrfs_item_key_to_cpu(leaf, &key, slot);
-       if (key.objectid != inode->i_ino ||
+       if (key.objectid != btrfs_ino(inode) ||
            key.type != BTRFS_EXTENT_DATA_KEY) {
                /* not our file or wrong item type, must cow */
                goto out;
@@ -5608,7 +5617,7 @@ static noinline int can_nocow_odirect(struct btrfs_trans_handle *trans,
         * look for other files referencing this extent, if we
         * find any we must cow
         */
-       if (btrfs_cross_ref_exist(trans, root, inode->i_ino,
+       if (btrfs_cross_ref_exist(trans, root, btrfs_ino(inode),
                                  key.offset - backref_offset, disk_bytenr))
                goto out;
 
@@ -5798,9 +5807,10 @@ static void btrfs_endio_direct_read(struct bio *bio, int err)
 
                        flush_dcache_page(bvec->bv_page);
                        if (csum != *private) {
-                               printk(KERN_ERR "btrfs csum failed ino %lu off"
+                               printk(KERN_ERR "btrfs csum failed ino %llu off"
                                      " %llu csum %u private %u\n",
-                                     inode->i_ino, (unsigned long long)start,
+                                     (unsigned long long)btrfs_ino(inode),
+                                     (unsigned long long)start,
                                      csum, *private);
                                err = -EIO;
                        }
@@ -5947,9 +5957,9 @@ static void btrfs_end_dio_bio(struct bio *bio, int err)
        struct btrfs_dio_private *dip = bio->bi_private;
 
        if (err) {
-               printk(KERN_ERR "btrfs direct IO failed ino %lu rw %lu "
+               printk(KERN_ERR "btrfs direct IO failed ino %llu rw %lu "
                      "sector %#Lx len %u err no %d\n",
-                     dip->inode->i_ino, bio->bi_rw,
+                     (unsigned long long)btrfs_ino(dip->inode), bio->bi_rw,
                      (unsigned long long)bio->bi_sector, bio->bi_size, err);
                dip->errors = 1;
 
@@ -6859,8 +6869,8 @@ void btrfs_destroy_inode(struct inode *inode)
 
        spin_lock(&root->orphan_lock);
        if (!list_empty(&BTRFS_I(inode)->i_orphan)) {
-               printk(KERN_INFO "BTRFS: inode %lu still on the orphan list\n",
-                      inode->i_ino);
+               printk(KERN_INFO "BTRFS: inode %llu still on the orphan list\n",
+                      (unsigned long long)btrfs_ino(inode));
                list_del_init(&BTRFS_I(inode)->i_orphan);
        }
        spin_unlock(&root->orphan_lock);
@@ -6999,16 +7009,17 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
        u64 index = 0;
        u64 root_objectid;
        int ret;
+       u64 old_ino = btrfs_ino(old_inode);
 
-       if (new_dir->i_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
+       if (btrfs_ino(new_dir) == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)
                return -EPERM;
 
        /* we only allow rename subvolume link between subvolumes */
-       if (old_inode->i_ino != BTRFS_FIRST_FREE_OBJECTID && root != dest)
+       if (old_ino != BTRFS_FIRST_FREE_OBJECTID && root != dest)
                return -EXDEV;
 
-       if (old_inode->i_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID ||
-           (new_inode && new_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID))
+       if (old_ino == BTRFS_EMPTY_SUBVOL_DIR_OBJECTID ||
+           (new_inode && btrfs_ino(new_inode) == BTRFS_FIRST_FREE_OBJECTID))
                return -ENOTEMPTY;
 
        if (S_ISDIR(old_inode->i_mode) && new_inode &&
@@ -7024,7 +7035,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
                filemap_flush(old_inode->i_mapping);
 
        /* close the racy window with snapshot create/destroy ioctl */
-       if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
+       if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
                down_read(&root->fs_info->subvol_sem);
        /*
         * We want to reserve the absolute worst case amount of items.  So if
@@ -7049,15 +7060,15 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
        if (ret)
                goto out_fail;
 
-       if (unlikely(old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)) {
+       if (unlikely(old_ino == BTRFS_FIRST_FREE_OBJECTID)) {
                /* force full log commit if subvolume involved. */
                root->fs_info->last_trans_log_full_commit = trans->transid;
        } else {
                ret = btrfs_insert_inode_ref(trans, dest,
                                             new_dentry->d_name.name,
                                             new_dentry->d_name.len,
-                                            old_inode->i_ino,
-                                            new_dir->i_ino, index);
+                                            old_ino,
+                                            btrfs_ino(new_dir), index);
                if (ret)
                        goto out_fail;
                /*
@@ -7073,10 +7084,8 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
         * make sure the inode gets flushed if it is replacing
         * something.
         */
-       if (new_inode && new_inode->i_size &&
-           old_inode && S_ISREG(old_inode->i_mode)) {
+       if (new_inode && new_inode->i_size && S_ISREG(old_inode->i_mode))
                btrfs_add_ordered_operation(trans, root, old_inode);
-       }
 
        old_dir->i_ctime = old_dir->i_mtime = ctime;
        new_dir->i_ctime = new_dir->i_mtime = ctime;
@@ -7085,7 +7094,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
        if (old_dentry->d_parent != new_dentry->d_parent)
                btrfs_record_unlink_dir(trans, old_dir, old_inode, 1);
 
-       if (unlikely(old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)) {
+       if (unlikely(old_ino == BTRFS_FIRST_FREE_OBJECTID)) {
                root_objectid = BTRFS_I(old_inode)->root->root_key.objectid;
                ret = btrfs_unlink_subvol(trans, root, old_dir, root_objectid,
                                        old_dentry->d_name.name,
@@ -7102,7 +7111,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 
        if (new_inode) {
                new_inode->i_ctime = CURRENT_TIME;
-               if (unlikely(new_inode->i_ino ==
+               if (unlikely(btrfs_ino(new_inode) ==
                             BTRFS_EMPTY_SUBVOL_DIR_OBJECTID)) {
                        root_objectid = BTRFS_I(new_inode)->location.objectid;
                        ret = btrfs_unlink_subvol(trans, dest, new_dir,
@@ -7130,7 +7139,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
                             new_dentry->d_name.len, 0, index);
        BUG_ON(ret);
 
-       if (old_inode->i_ino != BTRFS_FIRST_FREE_OBJECTID) {
+       if (old_ino != BTRFS_FIRST_FREE_OBJECTID) {
                struct dentry *parent = dget_parent(new_dentry);
                btrfs_log_new_name(trans, old_inode, old_dir, parent);
                dput(parent);
@@ -7139,7 +7148,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 out_fail:
        btrfs_end_transaction_throttle(trans, root);
 out_notrans:
-       if (old_inode->i_ino == BTRFS_FIRST_FREE_OBJECTID)
+       if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
                up_read(&root->fs_info->subvol_sem);
 
        return ret;
@@ -7284,7 +7293,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
                goto out_unlock;
 
        inode = btrfs_new_inode(trans, root, dir, dentry->d_name.name,
-                               dentry->d_name.len, dir->i_ino, objectid,
+                               dentry->d_name.len, btrfs_ino(dir), objectid,
                                BTRFS_I(dir)->block_group, S_IFLNK|S_IRWXUGO,
                                &index);
        err = PTR_ERR(inode);
@@ -7315,7 +7324,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
 
        path = btrfs_alloc_path();
        BUG_ON(!path);
-       key.objectid = inode->i_ino;
+       key.objectid = btrfs_ino(inode);
        key.offset = 0;
        btrfs_set_key_type(&key, BTRFS_EXTENT_DATA_KEY);
        datasize = btrfs_file_extent_calc_inline_size(name_len);
index e1835f8..01dccb4 100644 (file)
@@ -416,7 +416,7 @@ static noinline int create_subvol(struct btrfs_root *root,
        BUG_ON(ret);
 
        ret = btrfs_insert_dir_item(trans, root,
-                                   name, namelen, dir->i_ino, &key,
+                                   name, namelen, btrfs_ino(dir), &key,
                                    BTRFS_FT_DIR, index);
        if (ret)
                goto fail;
@@ -427,7 +427,7 @@ static noinline int create_subvol(struct btrfs_root *root,
 
        ret = btrfs_add_root_ref(trans, root->fs_info->tree_root,
                                 objectid, root->root_key.objectid,
-                                dir->i_ino, index, name, namelen);
+                                btrfs_ino(dir), index, name, namelen);
 
        BUG_ON(ret);
 
@@ -1123,7 +1123,7 @@ static noinline int btrfs_ioctl_subvol_getflags(struct file *file,
        int ret = 0;
        u64 flags = 0;
 
-       if (inode->i_ino != BTRFS_FIRST_FREE_OBJECTID)
+       if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID)
                return -EINVAL;
 
        down_read(&root->fs_info->subvol_sem);
@@ -1150,7 +1150,7 @@ static noinline int btrfs_ioctl_subvol_setflags(struct file *file,
        if (root->fs_info->sb->s_flags & MS_RDONLY)
                return -EROFS;
 
-       if (inode->i_ino != BTRFS_FIRST_FREE_OBJECTID)
+       if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID)
                return -EINVAL;
 
        if (copy_from_user(&flags, arg, sizeof(flags)))
@@ -1633,7 +1633,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
                        goto out_dput;
        }
 
-       if (inode->i_ino != BTRFS_FIRST_FREE_OBJECTID) {
+       if (btrfs_ino(inode) != BTRFS_FIRST_FREE_OBJECTID) {
                err = -EINVAL;
                goto out_dput;
        }
@@ -1919,7 +1919,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
        }
 
        /* clone data */
-       key.objectid = src->i_ino;
+       key.objectid = btrfs_ino(src);
        key.type = BTRFS_EXTENT_DATA_KEY;
        key.offset = 0;
 
@@ -1946,7 +1946,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
 
                btrfs_item_key_to_cpu(leaf, &key, slot);
                if (btrfs_key_type(&key) > BTRFS_EXTENT_DATA_KEY ||
-                   key.objectid != src->i_ino)
+                   key.objectid != btrfs_ino(src))
                        break;
 
                if (btrfs_key_type(&key) == BTRFS_EXTENT_DATA_KEY) {
@@ -1989,7 +1989,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
                                goto next;
 
                        memcpy(&new_key, &key, sizeof(new_key));
-                       new_key.objectid = inode->i_ino;
+                       new_key.objectid = btrfs_ino(inode);
                        if (off <= key.offset)
                                new_key.offset = key.offset + destoff - off;
                        else
@@ -2043,7 +2043,7 @@ static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
                                        ret = btrfs_inc_extent_ref(trans, root,
                                                        disko, diskl, 0,
                                                        root->root_key.objectid,
-                                                       inode->i_ino,
+                                                       btrfs_ino(inode),
                                                        new_key.offset - datao);
                                        BUG_ON(ret);
                                }
index e6cb893..7b75e0c 100644 (file)
@@ -1410,9 +1410,9 @@ again:
                prev = node;
                entry = rb_entry(node, struct btrfs_inode, rb_node);
 
-               if (objectid < entry->vfs_inode.i_ino)
+               if (objectid < btrfs_ino(&entry->vfs_inode))
                        node = node->rb_left;
-               else if (objectid > entry->vfs_inode.i_ino)
+               else if (objectid > btrfs_ino(&entry->vfs_inode))
                        node = node->rb_right;
                else
                        break;
@@ -1420,7 +1420,7 @@ again:
        if (!node) {
                while (prev) {
                        entry = rb_entry(prev, struct btrfs_inode, rb_node);
-                       if (objectid <= entry->vfs_inode.i_ino) {
+                       if (objectid <= btrfs_ino(&entry->vfs_inode)) {
                                node = prev;
                                break;
                        }
@@ -1435,7 +1435,7 @@ again:
                        return inode;
                }
 
-               objectid = entry->vfs_inode.i_ino + 1;
+               objectid = btrfs_ino(&entry->vfs_inode) + 1;
                if (cond_resched_lock(&root->inode_lock))
                        goto again;
 
@@ -1471,7 +1471,7 @@ static int get_new_location(struct inode *reloc_inode, u64 *new_bytenr,
                return -ENOMEM;
 
        bytenr -= BTRFS_I(reloc_inode)->index_cnt;
-       ret = btrfs_lookup_file_extent(NULL, root, path, reloc_inode->i_ino,
+       ret = btrfs_lookup_file_extent(NULL, root, path, btrfs_ino(reloc_inode),
                                       bytenr, 0);
        if (ret < 0)
                goto out;
@@ -1559,11 +1559,11 @@ int replace_file_extents(struct btrfs_trans_handle *trans,
                        if (first) {
                                inode = find_next_inode(root, key.objectid);
                                first = 0;
-                       } else if (inode && inode->i_ino < key.objectid) {
+                       } else if (inode && btrfs_ino(inode) < key.objectid) {
                                btrfs_add_delayed_iput(inode);
                                inode = find_next_inode(root, key.objectid);
                        }
-                       if (inode && inode->i_ino == key.objectid) {
+                       if (inode && btrfs_ino(inode) == key.objectid) {
                                end = key.offset +
                                      btrfs_file_extent_num_bytes(leaf, fi);
                                WARN_ON(!IS_ALIGNED(key.offset,
@@ -1894,6 +1894,7 @@ static int invalidate_extent_cache(struct btrfs_root *root,
        struct inode *inode = NULL;
        u64 objectid;
        u64 start, end;
+       u64 ino;
 
        objectid = min_key->objectid;
        while (1) {
@@ -1906,17 +1907,18 @@ static int invalidate_extent_cache(struct btrfs_root *root,
                inode = find_next_inode(root, objectid);
                if (!inode)
                        break;
+               ino = btrfs_ino(inode);
 
-               if (inode->i_ino > max_key->objectid) {
+               if (ino > max_key->objectid) {
                        iput(inode);
                        break;
                }
 
-               objectid = inode->i_ino + 1;
+               objectid = ino + 1;
                if (!S_ISREG(inode->i_mode))
                        continue;
 
-               if (unlikely(min_key->objectid == inode->i_ino)) {
+               if (unlikely(min_key->objectid == ino)) {
                        if (min_key->type > BTRFS_EXTENT_DATA_KEY)
                                continue;
                        if (min_key->type < BTRFS_EXTENT_DATA_KEY)
@@ -1929,7 +1931,7 @@ static int invalidate_extent_cache(struct btrfs_root *root,
                        start = 0;
                }
 
-               if (unlikely(max_key->objectid == inode->i_ino)) {
+               if (unlikely(max_key->objectid == ino)) {
                        if (max_key->type < BTRFS_EXTENT_DATA_KEY)
                                continue;
                        if (max_key->type > BTRFS_EXTENT_DATA_KEY) {
index aef6c81..f4c1184 100644 (file)
@@ -972,7 +972,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
        BUG_ON(ret);
        ret = btrfs_insert_dir_item(trans, parent_root,
                                dentry->d_name.name, dentry->d_name.len,
-                               parent_inode->i_ino, &key,
+                               btrfs_ino(parent_inode), &key,
                                BTRFS_FT_DIR, index);
        BUG_ON(ret);
 
@@ -1014,7 +1014,7 @@ static noinline int create_pending_snapshot(struct btrfs_trans_handle *trans,
         */
        ret = btrfs_add_root_ref(trans, tree_root, objectid,
                                 parent_root->root_key.objectid,
-                                parent_inode->i_ino, index,
+                                btrfs_ino(parent_inode), index,
                                 dentry->d_name.name, dentry->d_name.len);
        BUG_ON(ret);
        dput(parent);
index c50271a..4323dc6 100644 (file)
@@ -519,7 +519,7 @@ static noinline int replay_one_extent(struct btrfs_trans_handle *trans,
         * file.  This must be done before the btrfs_drop_extents run
         * so we don't try to drop this extent.
         */
-       ret = btrfs_lookup_file_extent(trans, root, path, inode->i_ino,
+       ret = btrfs_lookup_file_extent(trans, root, path, btrfs_ino(inode),
                                       start, 0);
 
        if (ret == 0 &&
@@ -832,7 +832,7 @@ again:
        read_extent_buffer(eb, name, (unsigned long)(ref + 1), namelen);
 
        /* if we already have a perfect match, we're done */
-       if (inode_in_dir(root, path, dir->i_ino, inode->i_ino,
+       if (inode_in_dir(root, path, btrfs_ino(dir), btrfs_ino(inode),
                         btrfs_inode_ref_index(eb, ref),
                         name, namelen)) {
                goto out;
@@ -960,8 +960,9 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans,
        unsigned long ptr;
        unsigned long ptr_end;
        int name_len;
+       u64 ino = btrfs_ino(inode);
 
-       key.objectid = inode->i_ino;
+       key.objectid = ino;
        key.type = BTRFS_INODE_REF_KEY;
        key.offset = (u64)-1;
 
@@ -980,7 +981,7 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans,
                }
                btrfs_item_key_to_cpu(path->nodes[0], &key,
                                      path->slots[0]);
-               if (key.objectid != inode->i_ino ||
+               if (key.objectid != ino ||
                    key.type != BTRFS_INODE_REF_KEY)
                        break;
                ptr = btrfs_item_ptr_offset(path->nodes[0], path->slots[0]);
@@ -1011,10 +1012,10 @@ static noinline int fixup_inode_link_count(struct btrfs_trans_handle *trans,
        if (inode->i_nlink == 0) {
                if (S_ISDIR(inode->i_mode)) {
                        ret = replay_dir_deletes(trans, root, NULL, path,
-                                                inode->i_ino, 1);
+                                                ino, 1);
                        BUG_ON(ret);
                }
-               ret = insert_orphan_item(trans, root, inode->i_ino);
+               ret = insert_orphan_item(trans, root, ino);
                BUG_ON(ret);
        }
        btrfs_free_path(path);
@@ -2197,6 +2198,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
        int ret;
        int err = 0;
        int bytes_del = 0;
+       u64 dir_ino = btrfs_ino(dir);
 
        if (BTRFS_I(dir)->logged_trans < trans->transid)
                return 0;
@@ -2212,7 +2214,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
        if (!path)
                return -ENOMEM;
 
-       di = btrfs_lookup_dir_item(trans, log, path, dir->i_ino,
+       di = btrfs_lookup_dir_item(trans, log, path, dir_ino,
                                   name, name_len, -1);
        if (IS_ERR(di)) {
                err = PTR_ERR(di);
@@ -2224,7 +2226,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
                BUG_ON(ret);
        }
        btrfs_release_path(log, path);
-       di = btrfs_lookup_dir_index_item(trans, log, path, dir->i_ino,
+       di = btrfs_lookup_dir_index_item(trans, log, path, dir_ino,
                                         index, name, name_len, -1);
        if (IS_ERR(di)) {
                err = PTR_ERR(di);
@@ -2242,7 +2244,7 @@ int btrfs_del_dir_entries_in_log(struct btrfs_trans_handle *trans,
        if (bytes_del) {
                struct btrfs_key key;
 
-               key.objectid = dir->i_ino;
+               key.objectid = dir_ino;
                key.offset = 0;
                key.type = BTRFS_INODE_ITEM_KEY;
                btrfs_release_path(log, path);
@@ -2300,7 +2302,7 @@ int btrfs_del_inode_ref_in_log(struct btrfs_trans_handle *trans,
        log = root->log_root;
        mutex_lock(&BTRFS_I(inode)->log_mutex);
 
-       ret = btrfs_del_inode_ref(trans, log, name, name_len, inode->i_ino,
+       ret = btrfs_del_inode_ref(trans, log, name, name_len, btrfs_ino(inode),
                                  dirid, &index);
        mutex_unlock(&BTRFS_I(inode)->log_mutex);
        if (ret == -ENOSPC) {
@@ -2366,13 +2368,14 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
        int nritems;
        u64 first_offset = min_offset;
        u64 last_offset = (u64)-1;
+       u64 ino = btrfs_ino(inode);
 
        log = root->log_root;
-       max_key.objectid = inode->i_ino;
+       max_key.objectid = ino;
        max_key.offset = (u64)-1;
        max_key.type = key_type;
 
-       min_key.objectid = inode->i_ino;
+       min_key.objectid = ino;
        min_key.type = key_type;
        min_key.offset = min_offset;
 
@@ -2385,9 +2388,8 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
         * we didn't find anything from this transaction, see if there
         * is anything at all
         */
-       if (ret != 0 || min_key.objectid != inode->i_ino ||
-           min_key.type != key_type) {
-               min_key.objectid = inode->i_ino;
+       if (ret != 0 || min_key.objectid != ino || min_key.type != key_type) {
+               min_key.objectid = ino;
                min_key.type = key_type;
                min_key.offset = (u64)-1;
                btrfs_release_path(root, path);
@@ -2396,7 +2398,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
                        btrfs_release_path(root, path);
                        return ret;
                }
-               ret = btrfs_previous_item(root, path, inode->i_ino, key_type);
+               ret = btrfs_previous_item(root, path, ino, key_type);
 
                /* if ret == 0 there are items for this type,
                 * create a range to tell us the last key of this type.
@@ -2414,7 +2416,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
        }
 
        /* go backward to find any previous key */
-       ret = btrfs_previous_item(root, path, inode->i_ino, key_type);
+       ret = btrfs_previous_item(root, path, ino, key_type);
        if (ret == 0) {
                struct btrfs_key tmp;
                btrfs_item_key_to_cpu(path->nodes[0], &tmp, path->slots[0]);
@@ -2449,8 +2451,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
                for (i = path->slots[0]; i < nritems; i++) {
                        btrfs_item_key_to_cpu(src, &min_key, i);
 
-                       if (min_key.objectid != inode->i_ino ||
-                           min_key.type != key_type)
+                       if (min_key.objectid != ino || min_key.type != key_type)
                                goto done;
                        ret = overwrite_item(trans, log, dst_path, src, i,
                                             &min_key);
@@ -2471,7 +2472,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
                        goto done;
                }
                btrfs_item_key_to_cpu(path->nodes[0], &tmp, path->slots[0]);
-               if (tmp.objectid != inode->i_ino || tmp.type != key_type) {
+               if (tmp.objectid != ino || tmp.type != key_type) {
                        last_offset = (u64)-1;
                        goto done;
                }
@@ -2497,8 +2498,7 @@ done:
                 * is valid
                 */
                ret = insert_dir_log_key(trans, log, path, key_type,
-                                        inode->i_ino, first_offset,
-                                        last_offset);
+                                        ino, first_offset, last_offset);
                if (ret)
                        err = ret;
        }
@@ -2742,6 +2742,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
        int nritems;
        int ins_start_slot = 0;
        int ins_nr;
+       u64 ino = btrfs_ino(inode);
 
        log = root->log_root;
 
@@ -2754,11 +2755,11 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
                return -ENOMEM;
        }
 
-       min_key.objectid = inode->i_ino;
+       min_key.objectid = ino;
        min_key.type = BTRFS_INODE_ITEM_KEY;
        min_key.offset = 0;
 
-       max_key.objectid = inode->i_ino;
+       max_key.objectid = ino;
 
        /* today the code can only do partial logging of directories */
        if (!S_ISDIR(inode->i_mode))
@@ -2781,8 +2782,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
 
                if (inode_only == LOG_INODE_EXISTS)
                        max_key_type = BTRFS_XATTR_ITEM_KEY;
-               ret = drop_objectid_items(trans, log, path,
-                                         inode->i_ino, max_key_type);
+               ret = drop_objectid_items(trans, log, path, ino, max_key_type);
        } else {
                ret = btrfs_truncate_inode_items(trans, log, inode, 0, 0);
        }
@@ -2800,7 +2800,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
                        break;
 again:
                /* note, ins_nr might be > 0 here, cleanup outside the loop */
-               if (min_key.objectid != inode->i_ino)
+               if (min_key.objectid != ino)
                        break;
                if (min_key.type > max_key.type)
                        break;
index 07b9bc3..a8af771 100644 (file)
@@ -44,7 +44,7 @@ ssize_t __btrfs_getxattr(struct inode *inode, const char *name,
                return -ENOMEM;
 
        /* lookup the xattr by name */
-       di = btrfs_lookup_xattr(NULL, root, path, inode->i_ino, name,
+       di = btrfs_lookup_xattr(NULL, root, path, btrfs_ino(inode), name,
                                strlen(name), 0);
        if (!di) {
                ret = -ENODATA;
@@ -103,7 +103,7 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
                return -ENOMEM;
 
        /* first lets see if we already have this xattr */
-       di = btrfs_lookup_xattr(trans, root, path, inode->i_ino, name,
+       di = btrfs_lookup_xattr(trans, root, path, btrfs_ino(inode), name,
                                strlen(name), -1);
        if (IS_ERR(di)) {
                ret = PTR_ERR(di);
@@ -136,7 +136,7 @@ static int do_setxattr(struct btrfs_trans_handle *trans,
        }
 
        /* ok we have to create a completely new xattr */
-       ret = btrfs_insert_xattr_item(trans, root, path, inode->i_ino,
+       ret = btrfs_insert_xattr_item(trans, root, path, btrfs_ino(inode),
                                      name, name_len, value, size);
        BUG_ON(ret);
 out:
@@ -190,7 +190,7 @@ ssize_t btrfs_listxattr(struct dentry *dentry, char *buffer, size_t size)
         * NOTE: we set key.offset = 0; because we want to start with the
         * first xattr that we find and walk forward
         */
-       key.objectid = inode->i_ino;
+       key.objectid = btrfs_ino(inode);
        btrfs_set_key_type(&key, BTRFS_XATTR_ITEM_KEY);
        key.offset = 0;