diff options
Diffstat (limited to '')
| -rw-r--r-- | fs/xfs/libxfs/xfs_bmap_btree.c | 89 |
1 files changed, 28 insertions, 61 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap_btree.c b/fs/xfs/libxfs/xfs_bmap_btree.c index 5dad3db4affa..54fdf0df8ec3 100644 --- a/fs/xfs/libxfs/xfs_bmap_btree.c +++ b/fs/xfs/libxfs/xfs_bmap_btree.c @@ -369,14 +369,6 @@ xfs_bmbt_init_rec_from_cur( xfs_bmbt_disk_set_all(&rec->bmbt, &cur->bc_rec.b); } -STATIC void -xfs_bmbt_init_ptr_from_cur( - struct xfs_btree_cur *cur, - union xfs_btree_ptr *ptr) -{ - ptr->l = 0; -} - STATIC int64_t xfs_bmbt_key_diff( struct xfs_btree_cur *cur, @@ -525,6 +517,7 @@ xfs_bmbt_keys_contiguous( } const struct xfs_btree_ops xfs_bmbt_ops = { + .name = "bmap", .type = XFS_BTREE_TYPE_INODE, .rec_len = sizeof(xfs_bmbt_rec_t), @@ -544,7 +537,6 @@ const struct xfs_btree_ops xfs_bmbt_ops = { .init_key_from_rec = xfs_bmbt_init_key_from_rec, .init_high_key_from_rec = xfs_bmbt_init_high_key_from_rec, .init_rec_from_cur = xfs_bmbt_init_rec_from_cur, - .init_ptr_from_cur = xfs_bmbt_init_ptr_from_cur, .key_diff = xfs_bmbt_key_diff, .diff_two_keys = xfs_bmbt_diff_two_keys, .buf_ops = &xfs_bmbt_buf_ops, @@ -553,27 +545,10 @@ const struct xfs_btree_ops xfs_bmbt_ops = { .keys_contiguous = xfs_bmbt_keys_contiguous, }; -static struct xfs_btree_cur * -xfs_bmbt_init_common( - struct xfs_mount *mp, - struct xfs_trans *tp, - struct xfs_inode *ip, - int whichfork) -{ - struct xfs_btree_cur *cur; - - ASSERT(whichfork != XFS_COW_FORK); - - cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_BMAP, &xfs_bmbt_ops, - mp->m_bm_maxlevels[whichfork], xfs_bmbt_cur_cache); - - cur->bc_ino.ip = ip; - cur->bc_bmap.allocated = 0; - return cur; -} - /* - * Allocate a new bmap btree cursor. + * Create a new bmap btree cursor. + * + * For staging cursors -1 in passed in whichfork. */ struct xfs_btree_cur * xfs_bmbt_init_cursor( @@ -582,15 +557,34 @@ xfs_bmbt_init_cursor( struct xfs_inode *ip, int whichfork) { - struct xfs_ifork *ifp = xfs_ifork_ptr(ip, whichfork); struct xfs_btree_cur *cur; + unsigned int maxlevels; - cur = xfs_bmbt_init_common(mp, tp, ip, whichfork); + ASSERT(whichfork != XFS_COW_FORK); - cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1; - cur->bc_ino.forksize = xfs_inode_fork_size(ip, whichfork); + /* + * The Data fork always has larger maxlevel, so use that for staging + * cursors. + */ + switch (whichfork) { + case XFS_STAGING_FORK: + maxlevels = mp->m_bm_maxlevels[XFS_DATA_FORK]; + break; + default: + maxlevels = mp->m_bm_maxlevels[whichfork]; + break; + } + cur = xfs_btree_alloc_cursor(mp, tp, &xfs_bmbt_ops, maxlevels, + xfs_bmbt_cur_cache); + cur->bc_ino.ip = ip; cur->bc_ino.whichfork = whichfork; + cur->bc_bmap.allocated = 0; + if (whichfork != XFS_STAGING_FORK) { + struct xfs_ifork *ifp = xfs_ifork_ptr(ip, whichfork); + cur->bc_nlevels = be16_to_cpu(ifp->if_broot->bb_level) + 1; + cur->bc_ino.forksize = xfs_inode_fork_size(ip, whichfork); + } return cur; } @@ -606,33 +600,6 @@ xfs_bmbt_block_maxrecs( } /* - * Allocate a new bmap btree cursor for reloading an inode block mapping data - * structure. Note that callers can use the staged cursor to reload extents - * format inode forks if they rebuild the iext tree and commit the staged - * cursor immediately. - */ -struct xfs_btree_cur * -xfs_bmbt_stage_cursor( - struct xfs_mount *mp, - struct xfs_inode *ip, - struct xbtree_ifakeroot *ifake) -{ - struct xfs_btree_cur *cur; - struct xfs_btree_ops *ops; - - /* data fork always has larger maxheight */ - cur = xfs_bmbt_init_common(mp, NULL, ip, XFS_DATA_FORK); - cur->bc_nlevels = ifake->if_levels; - cur->bc_ino.forksize = ifake->if_fork_size; - - /* Don't let anyone think we're attached to the real fork yet. */ - cur->bc_ino.whichfork = -1; - xfs_btree_stage_ifakeroot(cur, ifake, &ops); - ops->update_cursor = NULL; - return cur; -} - -/* * Swap in the new inode fork root. Once we pass this point the newly rebuilt * mappings are in place and we have to kill off any old btree blocks. */ @@ -672,7 +639,7 @@ xfs_bmbt_commit_staged_btree( break; } xfs_trans_log_inode(tp, cur->bc_ino.ip, flags); - xfs_btree_commit_ifakeroot(cur, tp, whichfork, &xfs_bmbt_ops); + xfs_btree_commit_ifakeroot(cur, tp, whichfork); } /* |