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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-12-15 22:13:26 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-12-15 22:13:26 +0000 |
| commit | 7e1548a597ef7e26d5d62f8be3be6da9e101b26c (patch) | |
| tree | fe6cbf4d9a3c1afdba04fb276fef0f932403727c /lib/idr.c | |
| parent | 1f7f569c0ae6e619504095eabf796edd712d943d (diff) | |
| parent | 2619bc327417f549f1c89d5ef9b4a4aa768f41a2 (diff) | |
Merge branch 'omap3-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 into devel
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 |