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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2014-11-13 18:11:22 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-11-13 15:13:05 -0500 |
| commit | 7b4ce2353467fdab6e003be7a3129fb09b09deac (patch) | |
| tree | 9e5d9d20cf30672d2db081a0de8604ad47680e49 /include/linux/rhashtable.h | |
| parent | 1b2f309d70daf04b6a97b3753e375654532f6207 (diff) | |
| download | lwn-7b4ce2353467fdab6e003be7a3129fb09b09deac.tar.gz lwn-7b4ce2353467fdab6e003be7a3129fb09b09deac.zip | |
rhashtable: Add parent argument to mutex_is_held
Currently mutex_is_held can only test locks in the that are global
since it takes no arguments. This prevents rhashtable from being
used in places where locks are lock, e.g., per-namespace locks.
This patch adds a parent field to mutex_is_held and rhashtable_params
so that local locks can be used (and tested).
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/rhashtable.h')
| -rw-r--r-- | include/linux/rhashtable.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/rhashtable.h b/include/linux/rhashtable.h index 96ce8ceff554..473e26bdb91d 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -66,7 +66,8 @@ struct rhashtable_params { bool (*shrink_decision)(const struct rhashtable *ht, size_t new_size); #ifdef CONFIG_PROVE_LOCKING - int (*mutex_is_held)(void); + int (*mutex_is_held)(void *parent); + void *parent; #endif }; |