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| author | Bob Copeland <me@bobcopeland.com> | 2016-03-02 10:09:19 -0500 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-04-05 10:56:32 +0200 |
| commit | 8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697 (patch) | |
| tree | 5b5a00794c61ddd351c11b2a928e1796290896c7 /net/netlink | |
| parent | 947c2a0eccec29fcd30e717787e65792b1e607ed (diff) | |
| download | linux-stable-8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697.tar.gz linux-stable-8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697.tar.bz2 linux-stable-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/netlink')
| -rw-r--r-- | net/netlink/af_netlink.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 215fc08c02ab..0f16bf635480 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -2343,7 +2343,8 @@ static int netlink_walk_start(struct nl_seq_iter *iter) { int err; - err = rhashtable_walk_init(&nl_table[iter->link].hash, &iter->hti); + err = rhashtable_walk_init(&nl_table[iter->link].hash, &iter->hti, + GFP_KERNEL); if (err) { iter->link = MAX_LINKS; return err; |