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mac80211: Don't sleep when growing the mesh path 

After commit 1928ecab62 (mac80211: fix and
simplify mesh locking) mesh table allocation is performed with the
pathtbl_resize_lock taken.  Under those conditions one should not sleep.
This patch makes the allocations GFP_ATOMIC to prevent that.

Signed-off-by: Javier Cardona <javier@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Javier Cardona 2011-05-17 16:13:34 -07:00 committed by John W. Linville
parent ba4903f97a
commit d676ff493d
1 changed files with 3 additions and 3 deletions
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6
net/mac80211/mesh_pathtbl.c
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@ -76,12 +76,12 @@ static struct mesh_table *mesh_table_alloc(int size_order)
int i;
struct mesh_table *newtbl;
newtbl = kmalloc(sizeof(struct mesh_table), GFP_KERNEL);
newtbl = kmalloc(sizeof(struct mesh_table), GFP_ATOMIC);
if (!newtbl)
return NULL;
newtbl->hash_buckets = kzalloc(sizeof(struct hlist_head) *
(1 << size_order), GFP_KERNEL);
(1 << size_order), GFP_ATOMIC);
if (!newtbl->hash_buckets) {
kfree(newtbl);
@ -89,7 +89,7 @@ static struct mesh_table *mesh_table_alloc(int size_order)
}
newtbl->hashwlock = kmalloc(sizeof(spinlock_t) *
(1 << size_order), GFP_KERNEL);
(1 << size_order), GFP_ATOMIC);
if (!newtbl->hashwlock) {
kfree(newtbl->hash_buckets);
kfree(newtbl);