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| author | Johannes Berg <johannes.berg@intel.com> | 2016-03-31 20:02:09 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2016-04-06 14:18:17 +0300 |
| commit | 0f9c5a61d4b2330b12c59126aa5a9108dbfce555 (patch) | |
| tree | 6d18031607d94831c71dba87fec4abfb990c6465 /net/mac80211/sta_info.h | |
| parent | 4f6b1b3daaf167bf927174224e07efd17ed95984 (diff) | |
| download | linux-0f9c5a61d4b2330b12c59126aa5a9108dbfce555.tar.xz | |
mac80211: fix RX u64 stats consistency on 32-bit platforms
On 32-bit platforms, the 64-bit counters we keep need to be protected
to be consistently read. Use the u64_stats_sync mechanism to do that.
In order to not end up with overly long lines, refactor the tidstats
assignments a bit.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/sta_info.h')
| -rw-r--r-- | net/mac80211/sta_info.h | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 5549ceb9cbb3..7c23b575672e 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -18,6 +18,7 @@ #include <linux/average.h> #include <linux/etherdevice.h> #include <linux/rhashtable.h> +#include <linux/u64_stats_sync.h> #include "key.h" /** @@ -444,7 +445,6 @@ struct sta_info { /* Updated from RX path only, no locking requirements */ struct { unsigned long packets; - u64 bytes; unsigned long last_rx; unsigned long num_duplicates; unsigned long fragments; @@ -453,6 +453,9 @@ struct sta_info { u8 chains; s8 chain_signal_last[IEEE80211_MAX_CHAINS]; u16 last_rate; + + struct u64_stats_sync syncp; + u64 bytes; u64 msdu[IEEE80211_NUM_TIDS + 1]; } rx_stats; struct { |