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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-06-10 16:12:44 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-06-15 10:58:38 -0700 |
| commit | de85d99eb7b595f6751550184b94c1e2f74a828b (patch) | |
| tree | 950eea4329bfb2b5d94f2e242a86c36cf1fd49fc /mm/vmstat.c | |
| parent | 36655042f9873efc2a90d251b9aef9b6b79d75d8 (diff) | |
| download | op-kernel-dev-de85d99eb7b595f6751550184b94c1e2f74a828b.zip op-kernel-dev-de85d99eb7b595f6751550184b94c1e2f74a828b.tar.gz | |
netpoll: Fix RCU usage
The use of RCU in netpoll is incorrect in a number of places:
1) The initial setting is lacking a write barrier.
2) The synchronize_rcu is in the wrong place.
3) Read barriers are missing.
4) Some places are even missing rcu_read_lock.
5) npinfo is zeroed after freeing.
This patch fixes those issues. As most users are in BH context,
this also converts the RCU usage to the BH variant.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/vmstat.c')
0 files changed, 0 insertions, 0 deletions
