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Btrfs: Off by one fixes for extent-tree.c

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Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Yan 2007-11-16 14:57:09 -05:00 committed by Chris Mason
parent 5e5745dcaf
commit 5cf664263b
1 changed files with 3 additions and 7 deletions
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10
fs/btrfs/extent-tree.c
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@ -150,12 +150,9 @@ struct btrfs_block_group_cache *btrfs_lookup_block_group(struct
return NULL;
block_group = (struct btrfs_block_group_cache *)(unsigned long)ptr;
if (block_group->key.objectid <= bytenr && bytenr <=
if (block_group->key.objectid <= bytenr && bytenr <
block_group->key.objectid + block_group->key.offset)
return block_group;
return NULL;
}
static u64 find_search_start(struct btrfs_root *root,
@ -195,7 +192,7 @@ static u64 find_search_start(struct btrfs_root *root,
continue;
}
if (data != BTRFS_BLOCK_GROUP_MIXED &&
start + num >= cache->key.objectid + cache->key.offset)
start + num > cache->key.objectid + cache->key.offset)
goto new_group;
return start;
}
@ -1088,9 +1085,8 @@ static int find_free_extent(struct btrfs_trans_handle *trans, struct btrfs_root
if (ins->objectid + num_bytes >= search_end)
goto enospc;
if (!full_scan && data != BTRFS_BLOCK_GROUP_MIXED &&
ins->objectid + num_bytes >= block_group->
ins->objectid + num_bytes > block_group->
key.objectid + block_group->key.offset) {
search_start = block_group->key.objectid +
block_group->key.offset;