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| author |   David Howells <dhowells@redhat.com> | 2018-09-27 15:13:09 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2018-09-28 10:33:17 +0100 |
| commit | f334430316e7fd37c4821ebec627e27714bb5d76 (patch) | |
| tree | a8e7fb558d409f5a36ba8104975272ed91b5ab9a /lib | |
| parent | rxrpc: Fix transport sockopts to get IPv4 errors on an IPv6 socket (diff) | |
| download | linux-dev-f334430316e7fd37c4821ebec627e27714bb5d76.tar.xz linux-dev-f334430316e7fd37c4821ebec627e27714bb5d76.zip | |
rxrpc: Fix error distribution
Fix error distribution by immediately delivering the errors to all the
affected calls rather than deferring them to a worker thread. The problem
with the latter is that retries and things can happen in the meantime when we
want to stop that sooner.
To this end:
(1) Stop the error distributor from removing calls from the error_targets
list so that peer->lock isn't needed to synchronise against other adds
and removals.
(2) Require the peer's error_targets list to be accessed with RCU, thereby
avoiding the need to take peer->lock over distribution.
(3) Don't attempt to affect a call's state if it is already marked complete.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions