diff options
Diffstat (limited to 'drivers/android/binder.c')
| -rw-r--r-- | drivers/android/binder.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/android/binder.c b/drivers/android/binder.c index f26286e3713e..905290c98c3c 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -1044,13 +1044,13 @@ static struct binder_ref *binder_get_ref_olocked(struct binder_proc *proc, } /* Find the smallest unused descriptor the "slow way" */ -static u32 slow_desc_lookup_olocked(struct binder_proc *proc) +static u32 slow_desc_lookup_olocked(struct binder_proc *proc, u32 offset) { struct binder_ref *ref; struct rb_node *n; u32 desc; - desc = 1; + desc = offset; for (n = rb_first(&proc->refs_by_desc); n; n = rb_next(n)) { ref = rb_entry(n, struct binder_ref, rb_node_desc); if (ref->data.desc > desc) @@ -1071,21 +1071,18 @@ static int get_ref_desc_olocked(struct binder_proc *proc, u32 *desc) { struct dbitmap *dmap = &proc->dmap; + unsigned int nbits, offset; unsigned long *new, bit; - unsigned int nbits; /* 0 is reserved for the context manager */ - if (node == proc->context->binder_context_mgr_node) { - *desc = 0; - return 0; - } + offset = (node == proc->context->binder_context_mgr_node) ? 0 : 1; if (!dbitmap_enabled(dmap)) { - *desc = slow_desc_lookup_olocked(proc); + *desc = slow_desc_lookup_olocked(proc, offset); return 0; } - if (dbitmap_acquire_first_zero_bit(dmap, &bit) == 0) { + if (dbitmap_acquire_next_zero_bit(dmap, offset, &bit) == 0) { *desc = bit; return 0; } |