Change pv_entry_count to a long. During the lifetime of FreeBSD 10.x,

physical memory sizes at the high-end will likely reach a point that
the number of pv entries could overflow an int.

Submitted by:	kib

This commit is contained in:

Alan Cox

2012-03-22 04:40:22 +00:00

parent cc0c154ffb

commit bfb2fa9f00

1 changed files with 2 additions and 2 deletions

									
										sys/amd64/amd64/pmap.c
									
		+2
		-2
	
												View File
												
				@@ -202,7 +202,7 @@ static u_int64_t	DMPDPphys;	/* phys addr of direct mapped level 3 */

				/*

				 * Data for the pv entry allocation mechanism

				 */

				static int pv_entry_count;

				static long pv_entry_count;

				static struct md_page *pv_table;

				/*

				@@ -2005,7 +2005,7 @@ pv_to_chunk(pv_entry_t pv)

				static uint64_t pc_freemask[_NPCM] = { PC_FREE0, PC_FREE1, PC_FREE2 };

				SYSCTL_INT(_vm_pmap, OID_AUTO, pv_entry_count, CTLFLAG_RD, &pv_entry_count, 0,

				SYSCTL_LONG(_vm_pmap, OID_AUTO, pv_entry_count, CTLFLAG_RD, &pv_entry_count, 0,

					"Current number of pv entries");

				#ifdef PV_STATS