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| author |   Eric Dumazet <edumazet@google.com> | 2017-03-16 15:43:19 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-03-16 21:37:13 -0700 |
| commit | db7f00b8dba6d687b6ab1f2e9309acfd214fcb4b (patch) | |
| tree | 63eedb1bec5da3449c41e53e56fea4eee4f02c5e /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | netvsc: fix race during initialization (diff) | |
| download | linux-dev-db7f00b8dba6d687b6ab1f2e9309acfd214fcb4b.tar.xz linux-dev-db7f00b8dba6d687b6ab1f2e9309acfd214fcb4b.zip | |
tcp: tcp_get_info() should read tcp_time_stamp later
Commit b369e7fd41f7 ("tcp: make TCP_INFO more consistent") moved
lock_sock_fast() earlier in tcp_get_info()
This has the minor effect that jiffies value being sampled at the
beginning of tcp_get_info() is more likely to be off by one, and we
report big tcpi_last_data_sent values (like 0xFFFFFFFF).
Since we lock the socket, fetching tcp_time_stamp right before
doing the jiffies_to_msecs() calls is enough to remove these
wrong values.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions