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| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-12-12 03:42:53 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-12-13 04:08:54 +0400 |
| commit | 3f1e6d3fd37bd4f25e5b19f1c7ca21850426c33f (patch) | |
| tree | 4a4c3e784973d34e3689e3fc6789ae3503db576c /net/sched/sch_gred.c | |
| parent | 72b36015ba43a3cca5303f5534d2c3e1899eae29 (diff) | |
| download | linux-3f1e6d3fd37bd4f25e5b19f1c7ca21850426c33f.tar.xz | |
sch_gred: should not use GFP_KERNEL while holding a spinlock
gred_change_vq() is called under sch_tree_lock(sch).
This means a spinlock is held, and we are not allowed to sleep in this
context.
We might pre-allocate memory using GFP_KERNEL before taking spinlock,
but this is not suitable for stable material.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_gred.c')
| -rw-r--r-- | net/sched/sch_gred.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/sch_gred.c b/net/sched/sch_gred.c index b9493a09a870..6cd8ddfb512d 100644 --- a/net/sched/sch_gred.c +++ b/net/sched/sch_gred.c @@ -385,7 +385,7 @@ static inline int gred_change_vq(struct Qdisc *sch, int dp, struct gred_sched_data *q; if (table->tab[dp] == NULL) { - table->tab[dp] = kzalloc(sizeof(*q), GFP_KERNEL); + table->tab[dp] = kzalloc(sizeof(*q), GFP_ATOMIC); if (table->tab[dp] == NULL) return -ENOMEM; } |