diff options
| author | Eric Dumazet <eric.dumazet@gmail.com> | 2011-12-11 23:42:53 +0000 |
|---|---|---|
| committer | Rohan Somvanshi <rsomvanshi@nvidia.com> | 2012-01-11 10:23:38 -0800 |
| commit | 30bbf4c0b17c5b066efb2df30e3a9cb0e660286f (patch) | |
| tree | 2918449dade59a1e7e5e9bfd1daa4f123608982f /net | |
| parent | f41f227f30f910b784c0d58d039c459c268c5ec5 (diff) | |
sch_gred: should not use GFP_KERNEL while holding a spinlock
[ Upstream commit 3f1e6d3fd37bd4f25e5b19f1c7ca21850426c33f ]
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Change-Id: I79a25778ca9fbc4ea2bd8c1f32d73bd73a1a3817
Reviewed-on: http://git-master/r/74218
Reviewed-by: Varun Wadekar <vwadekar@nvidia.com>
Tested-by: Varun Wadekar <vwadekar@nvidia.com>
Diffstat (limited to 'net')
| -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; } |