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| author | David S. Miller <davem@davemloft.net> | 2008-12-15 20:03:50 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-12-15 20:03:50 -0800 |
| commit | eb14f019597cd86c21a6c601d7e900f40030c2e7 (patch) | |
| tree | 36fb2f36a1747f98988f87215db1eef3a71d45eb /lib/idr.c | |
| parent | 9a4a84294b0d60b8c287131478f743ba2bc68949 (diff) | |
| parent | a3dd15444baa9c7522c8457ab564c41219dfb44c (diff) | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
drivers/net/e1000e/ich8lan.c
Diffstat (limited to 'lib/idr.c')
| -rw-r--r-- | lib/idr.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/idr.c b/lib/idr.c index 7a785a0c2ea..1c4f9281f41 100644 --- a/lib/idr.c +++ b/lib/idr.c @@ -220,8 +220,14 @@ build_up: */ while ((layers < (MAX_LEVEL - 1)) && (id >= (1 << (layers*IDR_BITS)))) { layers++; - if (!p->count) + if (!p->count) { + /* special case: if the tree is currently empty, + * then we grow the tree by moving the top node + * upwards. + */ + p->layer++; continue; + } if (!(new = get_from_free_list(idp))) { /* * The allocation failed. If we built part of |