From 61da886bf74e738995d359fa14d77f72d14cfb87 Mon Sep 17 00:00:00 2001 From: Chuck Lever Date: Mon, 1 Oct 2018 14:25:25 -0400 Subject: xprtrdma: Explicitly resetting MRs is no longer necessary When a memory operation fails, the MR's driver state might not match its hardware state. The only reliable recourse is to dereg the MR. This is done in ->ro_recover_mr, which then attempts to allocate a fresh MR to replace the released MR. Since commit e2ac236c0b651 ("xprtrdma: Allocate MRs on demand"), xprtrdma dynamically allocates MRs. It can add more MRs whenever they are needed. That makes it possible to simply release an MR when a memory operation fails, instead of "recovering" it. It will automatically be replaced by the on-demand MR allocator. This commit is a little larger than I wanted, but it replaces ->ro_recover_mr, rb_recovery_lock, rb_recovery_worker, and the rb_stale_mrs list with a generic work queue. Since MRs are no longer orphaned, the mrs_orphaned metric is no longer used. Signed-off-by: Chuck Lever Signed-off-by: Anna Schumaker --- include/trace/events/rpcrdma.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/trace') diff --git a/include/trace/events/rpcrdma.h b/include/trace/events/rpcrdma.h index 53df203b8057..9906f4d7d9fb 100644 --- a/include/trace/events/rpcrdma.h +++ b/include/trace/events/rpcrdma.h @@ -655,7 +655,7 @@ DEFINE_MR_EVENT(xprtrdma_localinv); DEFINE_MR_EVENT(xprtrdma_dma_map); DEFINE_MR_EVENT(xprtrdma_dma_unmap); DEFINE_MR_EVENT(xprtrdma_remoteinv); -DEFINE_MR_EVENT(xprtrdma_recover_mr); +DEFINE_MR_EVENT(xprtrdma_mr_recycle); /** ** Reply events -- cgit v1.2.3