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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2015-12-08 17:09:04 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-12-08 22:46:32 -0500 |
| commit | 46c749eac979c0bf280f760971367e9babe4d05f (patch) | |
| tree | 60245bd86dd38b65047283899ac739af1a534e52 /drivers/watchdog/machzwd.c | |
| parent | bc22ff5363b1842b0507c4eefefde7748dbc7032 (diff) | |
| download | blackbird-op-linux-46c749eac979c0bf280f760971367e9babe4d05f.tar.gz blackbird-op-linux-46c749eac979c0bf280f760971367e9babe4d05f.zip | |
rhashtable: Remove unnecessary wmb for future_tbl
The patch 9497df88ab5567daa001829051c5f87161a81ff0 ("rhashtable:
Fix reader/rehash race") added a pair of barriers. In fact the
wmb is superfluous because every subsequent write to the old or
new hash table uses rcu_assign_pointer, which itself carriers a
full barrier prior to the assignment.
Therefore we may remove the explicit wmb.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/watchdog/machzwd.c')
0 files changed, 0 insertions, 0 deletions
