hugetlb: remove /proc/ intrusion

PATCH In review William Lee Irwin III 1 participant 1 message Nov 6, 2002

Subsystems (2)

Proc filesystem HugeTLB

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William Lee Irwin III

author

2002-11-06 02:25 UTC #0 lore raw

PATCH 6/7 hugetlb: remove /proc/ intrusion

This patch removes hugetlb's intrusion into /proc/

 arch/i386/mm/hugetlbpage.c |   11 +++++++++++
 fs/proc/proc_misc.c        |   15 ++-------------
 include/linux/hugetlb.h    |    2 ++
 3 files changed, 15 insertions(+), 13 deletions(-)

arch/i386/mm/hugetlbpage.c +11 -0

diff -urpN hugetlbfs-2.5.46-4a/arch/i386/mm/hugetlbpage.c hugetlbfs-2.5.46-5a/arch/i386/mm/hugetlbpage.c
@@ -549,6 +549,17 @@ static int __init hugetlb_init(void)
 }
 module_init(hugetlb_init);
 
+int hugetlb_report_meminfo(char *buf)
+{
+	return sprintf(buf,
+			"HugePages_Total: %5lu\n"
+			"HugePages_Free:  %5lu\n"
+			"Hugepagesize:    %5lu kB\n",
+			htlbzone_pages,
+			htlbpagemem,
+			HPAGE_SIZE/1024);
+}
+
 static struct page * hugetlb_nopage(struct vm_area_struct * area, unsigned long address, int unused)
 {
 	BUG();

fs/proc/proc_misc.c +2 ~~-13~~

diff -urpN hugetlbfs-2.5.46-4a/fs/proc/proc_misc.c hugetlbfs-2.5.46-5a/fs/proc/proc_misc.c
@@ -40,7 +40,7 @@
 #include <linux/times.h>
 #include <linux/profile.h>
 #include <linux/blkdev.h>
-
+#include <linux/hugetlb.h>
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/io.h>

@@ -199,19 +199,8 @@ static int meminfo_read_proc(char *page,
 		ps.nr_reverse_maps
 		);
 
-#ifdef CONFIG_HUGETLB_PAGE
-	{
-		extern unsigned long htlbpagemem, htlbzone_pages;
-		len += sprintf(page + len,
-				"HugePages_Total: %5lu\n"
-				"HugePages_Free:  %5lu\n"
-				"Hugepagesize:    %5lu kB\n",
-				htlbzone_pages,
-				htlbpagemem,
-				HPAGE_SIZE/1024);
-	}
+		len += hugetlb_report_meminfo(page + len);
 
-#endif
 	return proc_calc_metrics(page, start, off, count, eof, len);
 #undef K
 }

include/linux/hugetlb.h +2 -0

diff -urpN hugetlbfs-2.5.46-4a/include/linux/hugetlb.h hugetlbfs-2.5.46-5a/include/linux/hugetlb.h
@@ -17,6 +17,7 @@ void zap_hugepage_range(struct vm_area_s
 void unmap_hugepage_range(struct vm_area_struct *, unsigned long, unsigned long);
 int hugetlb_prefault(struct address_space *, struct vm_area_struct *);
 void huge_page_release(struct page *);
+int hugetlb_report_meminfo(char *);
 
 extern int htlbpage_max;

@@ -32,6 +33,7 @@ static inline int is_vm_hugetlb_page(str
 #define zap_hugepage_range(vma, start, len)	BUG()
 #define unmap_hugepage_range(vma, start, end)	BUG()
 #define huge_page_release(page)			BUG()
+#define hugetlb_report_meminfo(buf)		0
 
 #endif /* !CONFIG_HUGETLB_PAGE */