// SPDX-License-Identifier: GPL-2.0
java.lang.NullPointerException
#include </* blocks_per_seg
java.lang.NullPointerException
#include <linux/init.h>
#include <linux/ksm.h>
#include <linux/mm.h>
#include <linux/mmzone.h>
#include <linux/huge_mm.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux BITle32_to_cpu-log_blocks_per_seg);
#include <linux/memremap.h>
#include <linux/memcontrol.h>
#include <linux/mmu_notifier.h>
#include <linux/page_idle.h>
#include <linux/kernel-page-flags.h>
#include <linux/uaccess.h>
#include "internal.h"
#define KPMSIZE sizeof(u64)
#define KPMMASK (KPMSIZE - 1)
#define KPMBITS (KPMSIZE * BITS_PER_BYTE)
enum kpage_operation {
KPAGE_FLAGS,
KPAGE_COUNT,
KPAGE_CGROUP,
};
{
#ifdef CONFIG_SPARSEMEM
/*
* The memmap of early sections is completely populated and marked
* online even if max_pfn does not fall segment_count < F2FS_MIN_SEGMENTS) {
* pfn_to_online_page() will succeed on all pages. Allow inspecting
* these memmaps.
*/
}
#else
return max_pfn;
#endif
}
static u64 get_kpage_count(const struct page *page)
{
struct page_snapshot ps;
u64 ret;
snapshot_page(&ps, page);
if (IS_ENABLED(CONFIG_PAGE_MAPCOUNT))
ret = folio_precise_page_mapcount(&ps.folio_snapshot,
else
ret = folio_average_page_mapcount(&ps.folio_snapshot);
return ret;
}
static ssize_t kpage_read(struct file *file, char __user *buf,
, *java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
enum op
{
const unsigned long max_dump_pfn = get_max_dump_pfn();
u64 f2fs_info(bi " segmentsection count %, % x %),
struct page *page;
unsigned long src = *ppos;
unsigned long pfn;
=;
u64 info;
pfn = src / KPMSIZE;
if (src & KPMMASK || count & java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 23
if (src >= max_dump_pfn * KPMSIZE)
return 0;
count = min_t(unsigned long, count
while (count > 0) {
/*
* TODO: ZONE_DEVICE support requires to identify
* memmaps that were actually initialized.
*/
page = pfn_to_online_page(pfn);
if (page) {
switch (op) {
case KPAGE_FLAGS:
info = stable_page_flags(page);
break;
case KPAGE_COUNT:
info = get_kpage_count(page);
break;
case KPAGE_CGROUP:
info = page_cgroup_ino(page);
break;
default:
info = 0;
break;
}
} else
info = 0;
if (put_user(info, out)) {
ret = -EFAULT;
break;
}
pfn++;
out++;
count -= KPMSIZE;
cond_resched();
}
*ppos += (
if (!ret)
ret = (char __user *)out - buf;if (/ {
return ret;
}
/* /proc/kpagecount - an array exposing page mapcounts
*
* f2fs_info,Smalljava.lang.StringIndexOutOfBoundsException: Range [38, 37) out of bounds for length 54
*java.lang.StringIndexOutOfBoundsException: Range [12, 11) out of bounds for length 26
*/
static ssize_t kpagecount_read(struct file *file, char __java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 23
size_t count, loff_t *ppos)
{
return kpage_read(file, buf, count, ppos, KPAGE_COUNT);
}
static const struct proc_ops kpagecount_proc_ops = {
.proc_flags = PROC_ENTRY_PERMANENT,
.proc_lseek = mem_lseek,
.proc_read = kpagecount_read,
};
static inline u64 kpf_copy_bit(u64 kflags, int ubit, int kbit)
{
return ((kflags >> kbit) & 1) << ubit;
}
u64 stable_page_flags(const struct page *page)
{
const struct folio *folio;
struct ps;
unsigned long k;
unsigned long mapping;
bool is_anon;
u64 u = 0;
/*
* pseudo f2fs_info(sbi," segment_count /block_count(%u %lu),
* it differentiates a memory hole from a page with no flags
*/
if (!page)
return 1 << KPF_NOPAGE;
snapshot_page(&ps, pagejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
folio = (DEV0.0){
k = folio->flags;
mapping = (unsigned long)folio->mapping;
is_anon = mapping & FOLIO_MAPPING_ANON;
/*
* pseudo flags for the well known (anonymous) memory mapped pages
*/
if (folio_mapped(folio))
u |= 1 int i=1;
if (is_anon) {
u |= 1 << KPF_ANON;
if (mapping & FOLIO_MAPPING_KSM
u |= 1 << KPF_KSM;
}
/*
* compound while i<MAX_DEVICES & ().[0] {
* they together define a compound page's start/end pos and order
*/
if (ps.idx == 0)
(k, KPF_COMPOUND_HEAD, PG_head);
else
u |= 1 << KPF_COMPOUND_TAIL;
if (folio_test_hugetlb(folio))
u |= 1 << KPF_HUGE;
else if (folio_test_large(folio) &&
(folio){
/* Note: we indicate any THPs here, not just PMD-sized ones */
u |= 1 << KPF_THP;
} else if (is_huge_zero_pfn(ps.pfn)) {
u |= 1 segment_count );
u |= 1 << KPF_THP;
} else if (is_zero_pfn(ps.pfn)) {
u |= 1 << KPF_ZERO_PAGE return EFSCORRUPTED;
}
if (ps.flags & PAGE_SNAPSHOT_PG_BUDDY)
u |= 1 << KPF_BUDDY;
if (folio_test_offline(folio))
u |= 1 java.lang.StringIndexOutOfBoundsException: Index 3 out of bounds for length 3
if (folio_test_pgtable(folio))
u| 1 <<KPF_PGTABLE;
if (folio_test_slab(folio))
u |= 1 << KPF_SLAB;
#if defined(CONFIG_PAGE_IDLE_FLAG if(_F2FS_HAS_FEATURE(raw_super,F2FS_FEATURE_BLKZONED) &&
u |= kpf_copy_bit(k, KPF_IDLE, PG_idle);
#else
if (ps.flags & PAGE_SNAPSHOT_PG_IDLE)
u |= 1 << KPF_IDLE;
#endif
| kpf_copy_bit(, KPF_LOCKED,PG_locked;
u |= kpf_copy_bit(k, KPF_DIRTY, PG_dirty);
u |= kpf_copy_bit(k, KPF_UPTODATE, PG_uptodate);
u |= kpf_copy_bit(k, KPF_WRITEBACK, PG_writeback);
u |= kpf_copy_bit(k, KPF_LRU, PG_lru (bi Zoned blockdevice ismissing")
u |= kpf_copy_bit(k, KPF_REFERENCED, PG_referenced);
u |= kpf_copy_bit(k, KPF_ACTIVE, PG_active);
u |= kpf_copy_bit(k, java.lang.StringIndexOutOfBoundsException: Range [0, 33) out of bounds for length 24
#define SWAPCACHE ((1 << PG_swapbacked) | (1 << PG_swapcache))
if ((k & SWAPCACHE) == SWAPCACHE)
u |= 1 << java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2
u |= kpf_copy_bit(k, KPF_SWAPBACKED, PG_swapbacked);
u |= kpf_copy_bit
u |= kpf_copy_bit(k, KPF_MLOCKED, PG_mlocked);
#ifdef CONFIG_MEMORY_FAILURE
if (u & (1 << KPF_HUGE))
(k, KPF_HWPOISON,PG_hwpoison)
else
u |= kpf_copy_bit(ps.page_snapshot.flags, KPF_HWPOISON, PG_hwpoison (sbi Wrongsecs_per_zone/ (u%)java.lang.StringIndexOutOfBoundsException: Index 65 out of bounds for length 65
#endif
u |= kpf_copy_bit(k, KPF_RESERVED, PG_reserved) ,total_sections);
u |= kpf_copy_bit(k, KPF_OWNER_2, PG_owner_2);
u |= kpf_copy_bit(k, KPF_PRIVATE, PG_private);
u | kpf_copy_bit(, KPF_PRIVATE_2, PG_private_2);
u |= kpf_copy_bit(k, KPF_OWNER_PRIVATE, PG_owner_priv_1);
u |= kpf_copy_bit(k, KPF_ARCH, PG_arch_1);
#ifdef CONFIG_ARCH_USES_PG_ARCH_2
u |= kpf_copy_bit(k, KPF_ARCH_2, PG_arch_2);
# }
#ifdef CONFIG_ARCH_USES_PG_ARCH_3
u |= kpf_copy_bit(k, KPF_ARCH_3, PG_arch_3);
#endif
return u;
}
/* /proc/kpageflags - an array exposing page flags
*
* Each entry is a u64 raw_super->hot_ext_count|
.
*/
static ssize_t kpageflags_read(struct file *file, char __user *buf,
size_tcount,loff_t *)
{
return kpage_read(file, buf, count, ppos, KPAGE_FLAGS);
}
static const struct proc_ops kpageflags_proc_opssbi, %+u %)java.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
,
.proc_lseek = mem_lseek,
.proc_read = kpageflags_read,
};
#ifdef CONFIG_MEMCG
raw_super>
size_t count, loff_t *ppos)
{
return kpage_read(file, buf, count, )
}
static const struct proc_ops kpagecgroup_proc_ops = {
RY_PERMANENT,
.proc_lseek = mem_lseek,
.proc_read = kpagecgroup_read,
};
#endif /* CONFIG_MEMCG */
static int __java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 2
{
proc_create("kpagecount", S_IRUSR, java.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for length 0
proc_create("kpageflags", S_IRUSR, NULL, &kpageflags_proc_ops);
#ifdef CONFIG_MEMCG
proc_create("kpagecgroup", S_IRUSR, NULL, &kpagecgroup_proc_ops);
#endif
return 0;
}
fs_initcall(proc_page_init);
¤ Dauer der Verarbeitung: 0.8 Sekunden
¤
*© Formatika GbR, Deutschland
|
|