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-rw-r--r--arch/x86/mm/pgtable_32.c3
-rw-r--r--include/asm-x86/page_32.h3
-rw-r--r--include/asm-x86/pgtable_32.h5
3 files changed, 5 insertions, 6 deletions
diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c
index cab0abbd1ebe..0951db9ee519 100644
--- a/arch/x86/mm/pgtable_32.c
+++ b/arch/x86/mm/pgtable_32.c
@@ -123,7 +123,8 @@ static int __init parse_vmalloc(char *arg)
123 if (!arg) 123 if (!arg)
124 return -EINVAL; 124 return -EINVAL;
125 125
126 __VMALLOC_RESERVE = memparse(arg, &arg); 126 /* Add VMALLOC_OFFSET to the parsed value due to vm area guard hole*/
127 __VMALLOC_RESERVE = memparse(arg, &arg) + VMALLOC_OFFSET;
127 return 0; 128 return 0;
128} 129}
129early_param("vmalloc", parse_vmalloc); 130early_param("vmalloc", parse_vmalloc);
diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h
index ab8528793f08..632feb156cc2 100644
--- a/include/asm-x86/page_32.h
+++ b/include/asm-x86/page_32.h
@@ -89,9 +89,6 @@ extern int nx_enabled;
89extern unsigned int __VMALLOC_RESERVE; 89extern unsigned int __VMALLOC_RESERVE;
90extern int sysctl_legacy_va_layout; 90extern int sysctl_legacy_va_layout;
91 91
92#define VMALLOC_RESERVE ((unsigned long)__VMALLOC_RESERVE)
93#define MAXMEM (-__PAGE_OFFSET - __VMALLOC_RESERVE)
94
95extern void find_low_pfn_range(void); 92extern void find_low_pfn_range(void);
96extern unsigned long init_memory_mapping(unsigned long start, 93extern unsigned long init_memory_mapping(unsigned long start,
97 unsigned long end); 94 unsigned long end);
diff --git a/include/asm-x86/pgtable_32.h b/include/asm-x86/pgtable_32.h
index 5c3b26567a95..9bb5269475cc 100644
--- a/include/asm-x86/pgtable_32.h
+++ b/include/asm-x86/pgtable_32.h
@@ -56,8 +56,7 @@ void paging_init(void);
56 * area for the same reason. ;) 56 * area for the same reason. ;)
57 */ 57 */
58#define VMALLOC_OFFSET (8 * 1024 * 1024) 58#define VMALLOC_OFFSET (8 * 1024 * 1024)
59#define VMALLOC_START (((unsigned long)high_memory + 2 * VMALLOC_OFFSET - 1) \ 59#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET)
60 & ~(VMALLOC_OFFSET - 1))
61#ifdef CONFIG_X86_PAE 60#ifdef CONFIG_X86_PAE
62#define LAST_PKMAP 512 61#define LAST_PKMAP 512
63#else 62#else
@@ -73,6 +72,8 @@ void paging_init(void);
73# define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE) 72# define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
74#endif 73#endif
75 74
75#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE)
76
76/* 77/*
77 * Define this if things work differently on an i386 and an i486: 78 * Define this if things work differently on an i386 and an i486:
78 * it will (on an i486) warn about kernel memory accesses that are 79 * it will (on an i486) warn about kernel memory accesses that are