rxrpc: Don't call the tx_ack tracepoint if don't generate an ACK

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rxrpc_send_call_packet() is invoking the tx_ack tracepoint before it checks
whether there's an ACK to transmit (another thread may jump in and transmit
it).

Fix this by only invoking the tracepoint if we get a valid ACK to transmit.

Further, only allocate a serial number if we're going to actually transmit
something.

Signed-off-by: David Howells <dhowells@redhat.com>

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This commit is contained in:

David Howells 2016-09-23 15:08:48 +01:00

parent 70790dbe3f

commit b86e218e0d

1 changed files with 11 additions and 15 deletions

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net/rxrpc/output.c

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