Don't simulate a pseudo address-space beyond VM_MAXUSER_ADDRESS that

maps onto the upages.  We used to use this extensively, particularly
for ps and gdb.  Both of these have been "fixed".  ps gets the p_stats
via eproc along with all the other stats, and gdb uses the regs, fpregs
etc files.

Once apon a time the UPAGES were mapped here, but that changed back
in January '96.  This essentially kills my revisions 1.16 and 1.17.
The 2-page "hole" above the stack can be reclaimed now.

1 files changed, 0 insertions, 40 deletions

diff --git a/sys/fs/procfs/procfs_mem.c b/sys/fs/procfs/procfs_mem.c
index 8b785bf..ebfe53b 100644
--- a/sys/fs/procfs/procfs_mem.c
+++ b/sys/fs/procfs/procfs_mem.c
@@ -128,46 +128,6 @@ procfs_rwmem(curp, p, uio)
 		 */
 		len = min(PAGE_SIZE - page_offset, uio->uio_resid);
 
-		if (uva >= VM_MAXUSER_ADDRESS) {
-			vm_offset_t tkva;
-
-			if (writing || 
-			    uva >= VM_MAXUSER_ADDRESS + UPAGES * PAGE_SIZE ||
-			    (ptrace_read_u_check(p,
-						 uva - (vm_offset_t) VM_MAXUSER_ADDRESS,
-						 (size_t) len) &&
-			     !procfs_kmemaccess(curp))) {
-				error = 0;
-				break;
-			}
-
-			/* we are reading the "U area", force it into core */
-			PHOLD(p);
-
-			/* sanity check */
-			if (!(p->p_flag & P_INMEM)) {
-				/* aiee! */
-				PRELE(p);
-				error = EFAULT;
-				break;
-			}
-
-			/* populate the ptrace/procfs area */
-			p->p_addr->u_kproc.kp_proc = *p;
-			fill_eproc (p, &p->p_addr->u_kproc.kp_eproc);
-
-			/* locate the in-core address */
-			tkva = (uintptr_t)p->p_addr + uva - VM_MAXUSER_ADDRESS;
-
-			/* transfer it */
-			error = uiomove((caddr_t)tkva, len, uio);
-
-			/* let the pages go */
-			PRELE(p);
-
-			continue;
-		}
-
 		/*
 		 * Fault the page on behalf of the process
 		 */