From 6f9838a6a5b80e0253bdc8fb194ad6f15eb655f5 Mon Sep 17 00:00:00 2001 From: cinap_lenrek Date: Sun, 16 Jan 2022 19:25:11 +0000 Subject: kernel: make Page.txtflush into an array To avoid a MAXMACH limit of 32 and make txtflush into an array for the bitmap. Provide portable macros for testing and clearing the bits: needtxtflush(), donetxtflush(). On pc/pc64, define inittxtflush()/settxtflush() as no-op macros, avoiding the storage overhead of the txtflush array alltogether. --- sys/src/9/port/devsegment.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'sys/src/9/port/devsegment.c') diff --git a/sys/src/9/port/devsegment.c b/sys/src/9/port/devsegment.c index dfbd34fbf..d24e0b72e 100644 --- a/sys/src/9/port/devsegment.c +++ b/sys/src/9/port/devsegment.c @@ -523,7 +523,7 @@ fixedseg(uintptr va, ulong len) p->ref = 1; p->va = va; p->modref = 0; - p->txtflush = ~0; + settxtflush(p, 1); k = kmap(p); memset((void*)VA(k), 0, BY2PG); -- cgit v1.2.3