+/*
+ * Copyright (C) 2010 Timo Kokkonen <timo.t.kokkonen@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
#ifndef _PAGEMAP_H
#define _PAGEMAP_H
+#include <stdlib.h>
+#include <string.h>
+
#include "utils.h"
#include "list.h"
-#include "bintree.h"
+#include "rbtree.h"
#define PAGE_SHIFT 12
#define PAGE_SIZE (1 << PAGE_SHIFT)
#define list_to_maps_list(list_head) \
container_of((list_head), struct maps_list, list)
+#define BITRANGE(first, last) (((2ll << (last - first)) - 1) << first)
+
struct pageframe {
- struct bintree tree;
- struct maps_list *ml; /* List to mappings which point to this pfn */
- unsigned long pfn; /* page frame number */
- int swap_type;
- int swap_offset;
- int page_shift;
- int page_swapped;
- int page_present;
+ struct rb_node tree;
+ struct list_head ml; /* List of mappings which refer to this pfn */
+
+ unsigned long long pf; /* page frame entry from /proc/pid/pagemap */
+ unsigned long long kpageflags;
+ unsigned long long kpagecount;
+
int refcount;
};
-#define tree_to_pageframe(tree_struct) \
+struct pageframe *pf_insert(struct rb_root *root, struct pageframe *pf);
+struct pageframe *pf_search(struct rb_root *root, struct pageframe *pf);
+
+#define rb_to_pageframe(tree_struct) \
container_of((tree_struct), struct pageframe, tree)
+static inline void clear_pageframe(struct pageframe *pf)
+{
+ memset(pf, 0, sizeof(*pf));
+ INIT_LIST_HEAD(&pf->ml);
+}
+
+static inline int page_present(struct pageframe *p)
+{
+ return !!(BITRANGE(63, 63) & p->pf);
+}
+
+static inline int page_swapped(struct pageframe *p)
+{
+ return !!(BITRANGE(62, 62) & p->pf);
+}
+
+static inline int page_shift(struct pageframe *p)
+{
+ return (BITRANGE(55, 60) & p->pf) >> 55;
+}
+
+static inline long int pfn(struct pageframe *p)
+{
+ return (BITRANGE(0, 54) & p->pf);
+}
+
+static inline int swap_type(struct pageframe *p)
+{
+ return (BITRANGE(0, 4) & p->pf);
+}
+
+static inline int swap_offset(struct pageframe *p)
+{
+ return (BITRANGE(5, 54) & p->pf) >> 5;
+}
+
+enum kpageflags {
+ LOCKED,
+ ERROR,
+ REFERENCED,
+ UPTODATE,
+ DIRTY,
+ LRU,
+ ACTIVE,
+ SLAB,
+ WRITEBACK,
+ RECLAIM,
+ BUDDY,
+ MMAP,
+ ANON,
+ SWAPCACHE,
+ SWAPBACKED,
+ COMPOUND_HEAD,
+ COMPOUND_TAIL,
+ HUGE,
+ UNEVICTABLE,
+ HWPOISON,
+ NOPAGE,
+ KSM,
+ THP,
+ __PAGEFLAGS_LAST,
+};
+
+#define KPAGEFLAGS_NUM __PAGEFLAGS_LAST
+
+struct kpageflag_str {
+ int flag;
+ char *str;
+};
+
+extern struct kpageflag_str kpageflag_str[];
+
+static inline int kpageflag_is_set(struct pageframe *p, int flag)
+{
+ return !!(BITRANGE(flag, flag) & p->kpageflags);
+}
+
+static inline char *kpageflag_to_str(int flag)
+{
+ int i;
+
+ for (i = 0; i < KPAGEFLAGS_NUM; i++)
+ if (kpageflag_str[i].flag == flag)
+ return kpageflag_str[i].str;
+
+ return NULL;
+}
+
struct maps {
struct list_head list;
long int pages_present;
long int pages_swapped;
+ long int pages_unique;
+
+ int is_initial_pid;
};
#define PARSE_PID 0x1
#define PARSE_MAP_NAME 0x2
-#define PARSE_PROCESS_NAME 0x4
#define PARSE_DUMP 0x8
#define PARSE_NOADD_TREE 0x10
+#define PARSE_SHARED_MAPPING 0x20
+
+struct pidlist {
+ struct list_head list;
+
+ int pid;
+};
struct parse_opts {
+ struct list_head pidlist;
+
int parse_mask;
- int pid;
char *name;
int with_threads;
};
+static inline void init_parse_opts(struct parse_opts *p)
+{
+ memset(p, 0, sizeof(*p));
+ INIT_LIST_HEAD(&p->pidlist);
+}
+
+static inline struct pidlist *alloc_pidlist(void)
+{
+ struct pidlist *p = calloc(sizeof(*p), 1);
+
+ if (p == NULL)
+ return p;
+
+ INIT_LIST_HEAD(&p->list);
+
+ return p;
+}
+
+#define is_parse_option(parse_opts, flag) \
+ (!!((parse_opts)->parse_mask & (flag)))
+
#endif