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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 /include/linux/rhashtable.h | |
| parent | 947c2a0eccec29fcd30e717787e65792b1e607ed (diff) | |
| download | talos-obmc-linux-8f6fd83c6c5ec66a4a70c728535ddcdfef4f3697.tar.gz talos-obmc-linux-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 '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 63bd7601b6de..3eef0802a0cd 100644 --- a/include/linux/rhashtable.h +++ b/include/linux/rhashtable.h @@ -346,7 +346,8 @@ struct bucket_table *rhashtable_insert_slow(struct rhashtable *ht, struct bucket_table *old_tbl); int rhashtable_insert_rehash(struct rhashtable *ht, struct bucket_table *tbl); -int rhashtable_walk_init(struct rhashtable *ht, struct rhashtable_iter *iter); +int rhashtable_walk_init(struct rhashtable *ht, struct rhashtable_iter *iter, + gfp_t gfp); void rhashtable_walk_exit(struct rhashtable_iter *iter); int rhashtable_walk_start(struct rhashtable_iter *iter) __acquires(RCU); void *rhashtable_walk_next(struct rhashtable_iter *iter); |
