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| author | Ben Dooks <ben-linux@fluff.org> | 2008-10-21 11:12:00 +0100 |
|---|---|---|
| committer | Ben Dooks <ben-linux@fluff.org> | 2008-10-21 11:12:00 +0100 |
| commit | c3380942e6699ed5b3e3f37b49ceb724b7699813 (patch) | |
| tree | 516d791cdfd1c7f99a29f71e1a7bba8f75af96e1 /net/ipv4/route.c | |
| parent | 0ffda6cca2c66e42d0ad65719f58c637ed180b05 (diff) | |
| parent | 2515ddc6db8eb49a79f0fe5e67ff09ac7c81eab4 (diff) | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into s3c64xx
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 942be04e795..2ea6dcc3e2c 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1109,7 +1109,12 @@ restart: printk("\n"); } #endif - rt_hash_table[hash].chain = rt; + /* + * Since lookup is lockfree, we must make sure + * previous writes to rt are comitted to memory + * before making rt visible to other CPUS. + */ + rcu_assign_pointer(rt_hash_table[hash].chain, rt); spin_unlock_bh(rt_hash_lock_addr(hash)); *rp = rt; return 0; |