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authorAlexey Dobriyan <adobriyan@gmail.com>2008-10-06 14:26:12 +0400
committerAlexey Dobriyan <adobriyan@gmail.com>2008-10-23 18:48:31 +0400
commit6d80e53f0056178c63fa8fbf3e8de40fb4df5f50 (patch)
tree1b98863c649b0a5593412f08afc0045c3c50137d /fs/proc/proc_misc.c
parent97ce5d6dcb07c403c0fc6001b755aacc38b5d7ff (diff)
downloadlinux-6d80e53f0056178c63fa8fbf3e8de40fb4df5f50.tar.bz2
proc: move pagecount stuff to fs/proc/page.c
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Diffstat (limited to 'fs/proc/proc_misc.c')
-rw-r--r--fs/proc/proc_misc.c135
1 files changed, 0 insertions, 135 deletions
diff --git a/fs/proc/proc_misc.c b/fs/proc/proc_misc.c
index 5ed15ff8fd1d..2ef9ef9bc8c1 100644
--- a/fs/proc/proc_misc.c
+++ b/fs/proc/proc_misc.c
@@ -57,146 +57,11 @@
#include <asm/div64.h>
#include "internal.h"
-#ifdef CONFIG_PROC_PAGE_MONITOR
-#define KPMSIZE sizeof(u64)
-#define KPMMASK (KPMSIZE - 1)
-/* /proc/kpagecount - an array exposing page counts
- *
- * Each entry is a u64 representing the corresponding
- * physical page count.
- */
-static ssize_t kpagecount_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- u64 __user *out = (u64 __user *)buf;
- struct page *ppage;
- unsigned long src = *ppos;
- unsigned long pfn;
- ssize_t ret = 0;
- u64 pcount;
-
- pfn = src / KPMSIZE;
- count = min_t(size_t, count, (max_pfn * KPMSIZE) - src);
- if (src & KPMMASK || count & KPMMASK)
- return -EINVAL;
-
- while (count > 0) {
- ppage = NULL;
- if (pfn_valid(pfn))
- ppage = pfn_to_page(pfn);
- pfn++;
- if (!ppage)
- pcount = 0;
- else
- pcount = page_mapcount(ppage);
-
- if (put_user(pcount, out++)) {
- ret = -EFAULT;
- break;
- }
-
- count -= KPMSIZE;
- }
-
- *ppos += (char __user *)out - buf;
- if (!ret)
- ret = (char __user *)out - buf;
- return ret;
-}
-
-static struct file_operations proc_kpagecount_operations = {
- .llseek = mem_lseek,
- .read = kpagecount_read,
-};
-
-/* /proc/kpageflags - an array exposing page flags
- *
- * Each entry is a u64 representing the corresponding
- * physical page flags.
- */
-
-/* These macros are used to decouple internal flags from exported ones */
-
-#define KPF_LOCKED 0
-#define KPF_ERROR 1
-#define KPF_REFERENCED 2
-#define KPF_UPTODATE 3
-#define KPF_DIRTY 4
-#define KPF_LRU 5
-#define KPF_ACTIVE 6
-#define KPF_SLAB 7
-#define KPF_WRITEBACK 8
-#define KPF_RECLAIM 9
-#define KPF_BUDDY 10
-
-#define kpf_copy_bit(flags, srcpos, dstpos) (((flags >> srcpos) & 1) << dstpos)
-
-static ssize_t kpageflags_read(struct file *file, char __user *buf,
- size_t count, loff_t *ppos)
-{
- u64 __user *out = (u64 __user *)buf;
- struct page *ppage;
- unsigned long src = *ppos;
- unsigned long pfn;
- ssize_t ret = 0;
- u64 kflags, uflags;
-
- pfn = src / KPMSIZE;
- count = min_t(unsigned long, count, (max_pfn * KPMSIZE) - src);
- if (src & KPMMASK || count & KPMMASK)
- return -EINVAL;
-
- while (count > 0) {
- ppage = NULL;
- if (pfn_valid(pfn))
- ppage = pfn_to_page(pfn);
- pfn++;
- if (!ppage)
- kflags = 0;
- else
- kflags = ppage->flags;
-
- uflags = kpf_copy_bit(KPF_LOCKED, PG_locked, kflags) |
- kpf_copy_bit(kflags, KPF_ERROR, PG_error) |
- kpf_copy_bit(kflags, KPF_REFERENCED, PG_referenced) |
- kpf_copy_bit(kflags, KPF_UPTODATE, PG_uptodate) |
- kpf_copy_bit(kflags, KPF_DIRTY, PG_dirty) |
- kpf_copy_bit(kflags, KPF_LRU, PG_lru) |
- kpf_copy_bit(kflags, KPF_ACTIVE, PG_active) |
- kpf_copy_bit(kflags, KPF_SLAB, PG_slab) |
- kpf_copy_bit(kflags, KPF_WRITEBACK, PG_writeback) |
- kpf_copy_bit(kflags, KPF_RECLAIM, PG_reclaim) |
- kpf_copy_bit(kflags, KPF_BUDDY, PG_buddy);
-
- if (put_user(uflags, out++)) {
- ret = -EFAULT;
- break;
- }
-
- count -= KPMSIZE;
- }
-
- *ppos += (char __user *)out - buf;
- if (!ret)
- ret = (char __user *)out - buf;
- return ret;
-}
-
-static struct file_operations proc_kpageflags_operations = {
- .llseek = mem_lseek,
- .read = kpageflags_read,
-};
-#endif /* CONFIG_PROC_PAGE_MONITOR */
-
void __init proc_misc_init(void)
{
proc_symlink("mounts", NULL, "self/mounts");
/* And now for trickier ones */
-#ifdef CONFIG_PROC_PAGE_MONITOR
- proc_create("kpagecount", S_IRUSR, NULL, &proc_kpagecount_operations);
- proc_create("kpageflags", S_IRUSR, NULL, &proc_kpageflags_operations);
-#endif
#ifdef CONFIG_PROC_VMCORE
proc_vmcore = proc_create("vmcore", S_IRUSR, NULL, &proc_vmcore_operations);
#endif