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| author |   Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-19 17:02:01 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2012-03-19 17:02:01 -0700 |
| commit | 10ce3cc919f50c2043b41ca968b43c26a3672600 (patch) | |
| tree | ea409366a5208aced495bc0516a08b81fd43222e /net/sched/sch_api.c | |
| parent | Input: wacom - fix physical size calculation for 3rd-gen Bamboo (diff) | |
| parent | Input: ili210x - add support for Ilitek ILI210x based touchscreens (diff) | |
| download | linux-dev-10ce3cc919f50c2043b41ca968b43c26a3672600.tar.xz linux-dev-10ce3cc919f50c2043b41ca968b43c26a3672600.zip | |
Merge branch 'next' into for-linus
Diffstat (limited to 'net/sched/sch_api.c')
| -rw-r--r-- | net/sched/sch_api.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c index dca6c1a576f7..3d8981fde301 100644 --- a/net/sched/sch_api.c +++ b/net/sched/sch_api.c @@ -618,20 +618,24 @@ void qdisc_class_hash_remove(struct Qdisc_class_hash *clhash, } EXPORT_SYMBOL(qdisc_class_hash_remove); -/* Allocate an unique handle from space managed by kernel */ - +/* Allocate an unique handle from space managed by kernel + * Possible range is [8000-FFFF]:0000 (0x8000 values) + */ static u32 qdisc_alloc_handle(struct net_device *dev) { - int i = 0x10000; + int i = 0x8000; static u32 autohandle = TC_H_MAKE(0x80000000U, 0); do { autohandle += TC_H_MAKE(0x10000U, 0); if (autohandle == TC_H_MAKE(TC_H_ROOT, 0)) autohandle = TC_H_MAKE(0x80000000U, 0); - } while (qdisc_lookup(dev, autohandle) && --i > 0); + if (!qdisc_lookup(dev, autohandle)) + return autohandle; + cond_resched(); + } while (--i > 0); - return i > 0 ? autohandle : 0; + return 0; } void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n) |