From bbadab80d2cb1908705d32b1689fe5cb5a32faab Mon Sep 17 00:00:00 2001 From: Sebastien Buisson Date: Thu, 27 Oct 2016 18:12:00 -0400 Subject: [PATCH] staging: lustre: ptlrpc: do not switch out-of-date context When trying to replace a dead sec context with a new one, we must ensure the new context is already up-to-date. If it is not the case, just return from sptlrpc_req_replace_dead_ctx() and come later when the new context has been updated. Signed-off-by: Sebastien Buisson Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6536 Reviewed-on: http://review.whamcloud.com/15708 Reviewed-by: Mike Pershin Reviewed-by: John L. Hammond Reviewed-by: Oleg Drokin Signed-off-by: James Simmons Signed-off-by: Greg Kroah-Hartman --- drivers/staging/lustre/lustre/ptlrpc/sec.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c index 12f02ed..e860df7 100644 --- a/drivers/staging/lustre/lustre/ptlrpc/sec.c +++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c @@ -515,6 +515,13 @@ static int sptlrpc_req_replace_dead_ctx(struct ptlrpc_request *req) set_current_state(TASK_INTERRUPTIBLE); schedule_timeout(msecs_to_jiffies(MSEC_PER_SEC)); + } else if (unlikely(!test_bit(PTLRPC_CTX_UPTODATE_BIT, &newctx->cc_flags))) { + /* + * new ctx not up to date yet + */ + CDEBUG(D_SEC, + "ctx (%p, fl %lx) doesn't switch, not up to date yet\n", + newctx, newctx->cc_flags); } else { /* * it's possible newctx == oldctx if we're switching -- 2.7.4