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authorBob Copeland <me@bobcopeland.com>2016-03-02 10:09:19 -0500
committerJohannes Berg <johannes.berg@intel.com>2016-04-05 10:56:32 +0200
commit8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697 (patch)
tree5b5a00794c61ddd351c11b2a928e1796290896c7 /net/ipv6/ila
parent947c2a0eccec29fcd30e717787e65792b1e607ed (diff)
downloadblackbird-op-linux-8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697.tar.gz
blackbird-op-linux-8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697.zip
rhashtable: accept GFP flags in rhashtable_walk_init
In certain cases, the 802.11 mesh pathtable code wants to iterate over all of the entries in the forwarding table from the receive path, which is inside an RCU read-side critical section. Enable walks inside atomic sections by allowing GFP_ATOMIC allocations for the walker state. Change all existing callsites to pass in GFP_KERNEL. Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: Bob Copeland <me@bobcopeland.com> [also adjust gfs2/glock.c and rhashtable tests] Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/ipv6/ila')
-rw-r--r--net/ipv6/ila/ila_xlat.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/ila/ila_xlat.c b/net/ipv6/ila/ila_xlat.c
index 295ca29a23c3..0b03533453e4 100644
--- a/net/ipv6/ila/ila_xlat.c
+++ b/net/ipv6/ila/ila_xlat.c
@@ -501,7 +501,8 @@ static int ila_nl_dump_start(struct netlink_callback *cb)
struct ila_net *ilan = net_generic(net, ila_net_id);
struct ila_dump_iter *iter = (struct ila_dump_iter *)cb->args;
- return rhashtable_walk_init(&ilan->rhash_table, &iter->rhiter);
+ return rhashtable_walk_init(&ilan->rhash_table, &iter->rhiter,
+ GFP_KERNEL);
}
static int ila_nl_dump_done(struct netlink_callback *cb)
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