shithub: gefs

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main: make trace sizes unsigned, use and instead of mod

--- a/main.c

+++ b/main.c

@@ -33,10 +33,10 @@

 _trace(char *msg, Bptr bp, vlong v0, vlong v1)

 {

 	Trace *t;

-	int idx;

+	ulong idx;

 	idx = aincl(&fs->traceidx, 1);

-	t = &fs->trace[(idx-1) % fs->tracesz];

+	t = &fs->trace[(idx-1) & ~(fs->tracesz-1)];

 	strecpy(t->msg, t->msg+sizeof(t->msg), msg);

 	t->tid = (*errctx)->tid;

 	t->qgen = agetv(&fs->qgen);