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| author | Jason Baron <jbaron@akamai.com> | 2017-01-24 21:49:41 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-09 22:01:53 +0100 |
| commit | fe8bdc9b79ee644177715a9f72a7b332dd881847 (patch) | |
| tree | fbab49dbb86e7ad494ae3d4346f9f4f8028bbc06 /net/packet/internal.h | |
| parent | 49c3164e6d84ce32121d18f060bc05825001df8e (diff) | |
tcp: correct memory barrier usage in tcp_check_space()
[ Upstream commit 56d806222ace4c3aeae516cd7a855340fb2839d8 ]
sock_reset_flag() maps to __clear_bit() not the atomic version clear_bit().
Thus, we need smp_mb(), smp_mb__after_atomic() is not sufficient.
Fixes: 3c7151275c0c ("tcp: add memory barriers to write space paths")
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Jason Baron <jbaron@akamai.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Reported-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/packet/internal.h')
0 files changed, 0 insertions, 0 deletions