diff options
| author | Karsten Graul <kgraul@linux.ibm.com> | 2020-04-30 15:55:38 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-30 12:44:33 -0700 |
| commit | 555da9af827d95134656fa459c8f3ece04dd867a (patch) | |
| tree | f2d35cfc1e42ad9d560cbc09855e8365240586c2 /net/smc/smc_core.c | |
| parent | 1569a3c44303834680e93df2ecf60f356be9b322 (diff) | |
| download | linux-555da9af827d95134656fa459c8f3ece04dd867a.tar.bz2 | |
net/smc: add event-based llc_flow framework
The new framework allows to start specific types of LLC control flows,
protects active flows and makes it possible to wait for flows to finish
before starting a new flow.
This mechanism is used for the LLC control layer to model flows like
'add link' or 'delete link' which need to send/receive several LLC
messages and are not allowed to get interrupted by the wrong type of
messages.
'Add link' or 'Delete link' messages arriving in the middle of a flow
are delayed and processed when the current flow finished.
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/smc/smc_core.c')
| -rw-r--r-- | net/smc/smc_core.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index db49f8cd5c95..4867ddcfe0c6 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -263,6 +263,7 @@ static void smc_lgr_free_work(struct work_struct *work) if (smc_link_usable(lnk)) lnk->state = SMC_LNK_INACTIVE; } + wake_up_interruptible_all(&lgr->llc_waiter); } smc_lgr_free(lgr); } @@ -696,6 +697,7 @@ static void smc_lgr_cleanup(struct smc_link_group *lgr) if (smc_link_usable(lnk)) lnk->state = SMC_LNK_INACTIVE; } + wake_up_interruptible_all(&lgr->llc_waiter); } } |