return nilfs_dat_inode(NILFS_I_NILFS(bmap->b_inode));
}
+/**
+ * nilfs_bmap_lookup_at_level - find a data block or node block
+ * @bmap: bmap
+ * @key: key
+ * @level: level
+ * @ptrp: place to store the value associated to @key
+ *
+ * Description: nilfs_bmap_lookup_at_level() finds a record whose key
+ * matches @key in the block at @level of the bmap.
+ *
+ * Return Value: On success, 0 is returned and the record associated with @key
+ * is stored in the place pointed by @ptrp. On error, one of the following
+ * negative error codes is returned.
+ *
+ * %-EIO - I/O error.
+ *
+ * %-ENOMEM - Insufficient amount of memory available.
+ *
+ * %-ENOENT - A record associated with @key does not exist.
+ */
int nilfs_bmap_lookup_at_level(struct nilfs_bmap *bmap, __u64 key, int level,
__u64 *ptrp)
{
return ret;
}
-/**
- * nilfs_bmap_lookup - find a record
- * @bmap: bmap
- * @key: key
- * @recp: pointer to record
- *
- * Description: nilfs_bmap_lookup() finds a record whose key matches @key in
- * @bmap.
- *
- * Return Value: On success, 0 is returned and the record associated with @key
- * is stored in the place pointed by @recp. On error, one of the following
- * negative error codes is returned.
- *
- * %-EIO - I/O error.
- *
- * %-ENOMEM - Insufficient amount of memory available.
- *
- * %-ENOENT - A record associated with @key does not exist.
- */
-int nilfs_bmap_lookup(struct nilfs_bmap *bmap,
- unsigned long key,
- unsigned long *recp)
-{
- __u64 ptr;
- int ret;
-
- /* XXX: use macro for level 1 */
- ret = nilfs_bmap_lookup_at_level(bmap, key, 1, &ptr);
- if (recp != NULL)
- *recp = ptr;
- return ret;
-}
-
static int nilfs_bmap_do_insert(struct nilfs_bmap *bmap, __u64 key, __u64 ptr)
{
__u64 keys[NILFS_BMAP_SMALL_HIGH + 1];
void nilfs_bmap_add_blocks(const struct nilfs_bmap *bmap, int n)
{
inode_add_bytes(bmap->b_inode, (1 << bmap->b_inode->i_blkbits) * n);
- if (NILFS_MDT(bmap->b_inode))
- nilfs_mdt_mark_dirty(bmap->b_inode);
- else
- mark_inode_dirty(bmap->b_inode);
}
void nilfs_bmap_sub_blocks(const struct nilfs_bmap *bmap, int n)
{
inode_sub_bytes(bmap->b_inode, (1 << bmap->b_inode->i_blkbits) * n);
- if (NILFS_MDT(bmap->b_inode))
- nilfs_mdt_mark_dirty(bmap->b_inode);
- else
- mark_inode_dirty(bmap->b_inode);
}
__u64 nilfs_bmap_data_get_key(const struct nilfs_bmap *bmap,
key = page_index(bh->b_page) << (PAGE_CACHE_SHIFT -
bmap->b_inode->i_blkbits);
- for (pbh = page_buffers(bh->b_page); pbh != bh;
- pbh = pbh->b_this_page, key++);
+ for (pbh = page_buffers(bh->b_page); pbh != bh; pbh = pbh->b_this_page)
+ key++;
return key;
}
(entries_per_group / NILFS_BMAP_GROUP_DIV);
}
-int nilfs_bmap_prepare_alloc_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
-{
- return nilfs_dat_prepare_alloc(nilfs_bmap_get_dat(bmap), &req->bpr_req);
-}
-
-void nilfs_bmap_commit_alloc_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
-{
- nilfs_dat_commit_alloc(nilfs_bmap_get_dat(bmap), &req->bpr_req);
-}
-
-void nilfs_bmap_abort_alloc_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
-{
- nilfs_dat_abort_alloc(nilfs_bmap_get_dat(bmap), &req->bpr_req);
-}
-
-int nilfs_bmap_start_v(struct nilfs_bmap *bmap, union nilfs_bmap_ptr_req *req,
- sector_t blocknr)
-{
- struct inode *dat = nilfs_bmap_get_dat(bmap);
- int ret;
-
- ret = nilfs_dat_prepare_start(dat, &req->bpr_req);
- if (likely(!ret))
- nilfs_dat_commit_start(dat, &req->bpr_req, blocknr);
- return ret;
-}
-
-int nilfs_bmap_prepare_end_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
-{
- return nilfs_dat_prepare_end(nilfs_bmap_get_dat(bmap), &req->bpr_req);
-}
-
-void nilfs_bmap_commit_end_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
-{
- nilfs_dat_commit_end(nilfs_bmap_get_dat(bmap), &req->bpr_req,
- bmap->b_ptr_type == NILFS_BMAP_PTR_VS);
-}
-
-void nilfs_bmap_abort_end_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *req)
-{
- nilfs_dat_abort_end(nilfs_bmap_get_dat(bmap), &req->bpr_req);
-}
-
-int nilfs_bmap_move_v(const struct nilfs_bmap *bmap, __u64 vblocknr,
- sector_t blocknr)
-{
- return nilfs_dat_move(nilfs_bmap_get_dat(bmap), vblocknr, blocknr);
-}
-
-int nilfs_bmap_mark_dirty(const struct nilfs_bmap *bmap, __u64 vblocknr)
-{
- return nilfs_dat_mark_dirty(nilfs_bmap_get_dat(bmap), vblocknr);
-}
-
-int nilfs_bmap_prepare_update_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *oldreq,
- union nilfs_bmap_ptr_req *newreq)
-{
- struct inode *dat = nilfs_bmap_get_dat(bmap);
- int ret;
-
- ret = nilfs_dat_prepare_end(dat, &oldreq->bpr_req);
- if (ret < 0)
- return ret;
- ret = nilfs_dat_prepare_alloc(dat, &newreq->bpr_req);
- if (ret < 0)
- nilfs_dat_abort_end(dat, &oldreq->bpr_req);
-
- return ret;
-}
-
-void nilfs_bmap_commit_update_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *oldreq,
- union nilfs_bmap_ptr_req *newreq)
-{
- struct inode *dat = nilfs_bmap_get_dat(bmap);
-
- nilfs_dat_commit_end(dat, &oldreq->bpr_req,
- bmap->b_ptr_type == NILFS_BMAP_PTR_VS);
- nilfs_dat_commit_alloc(dat, &newreq->bpr_req);
-}
-
-void nilfs_bmap_abort_update_v(struct nilfs_bmap *bmap,
- union nilfs_bmap_ptr_req *oldreq,
- union nilfs_bmap_ptr_req *newreq)
-{
- struct inode *dat = nilfs_bmap_get_dat(bmap);
-
- nilfs_dat_abort_end(dat, &oldreq->bpr_req);
- nilfs_dat_abort_alloc(dat, &newreq->bpr_req);
-}
-
static struct lock_class_key nilfs_bmap_dat_lock_key;
+static struct lock_class_key nilfs_bmap_mdt_lock_key;
/**
* nilfs_bmap_read - read a bmap from an inode
bmap->b_ptr_type = NILFS_BMAP_PTR_VS;
bmap->b_last_allocated_key = 0;
bmap->b_last_allocated_ptr = NILFS_BMAP_INVALID_PTR;
+ lockdep_set_class(&bmap->b_sem, &nilfs_bmap_mdt_lock_key);
break;
+ case NILFS_IFILE_INO:
+ lockdep_set_class(&bmap->b_sem, &nilfs_bmap_mdt_lock_key);
+ /* Fall through */
default:
bmap->b_ptr_type = NILFS_BMAP_PTR_VM;
bmap->b_last_allocated_key = 0;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff