mirror of
https://github.com/torvalds/linux.git
synced 2026-10-07 22:37:45 -04:00
Mike Rapoport
65fddcfca8
The replacement of <asm/pgrable.h> with <linux/pgtable.h> made the include
of the latter in the middle of asm includes. Fix this up with the aid of
the below script and manual adjustments here and there.
import sys
import re
if len(sys.argv) is not 3:
print "USAGE: %s <file> <header>" % (sys.argv[0])
sys.exit(1)
hdr_to_move="#include <linux/%s>" % sys.argv[2]
moved = False
in_hdrs = False
with open(sys.argv[1], "r") as f:
lines = f.readlines()
for _line in lines:
line = _line.rstrip('
')
if line == hdr_to_move:
continue
if line.startswith("#include <linux/"):
in_hdrs = True
elif not moved and in_hdrs:
moved = True
print hdr_to_move
print line
Signed-off-by: Mike Rapoport <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Arnd Bergmann <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Brian Cain <[email protected]>
Cc: Catalin Marinas <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Greentime Hu <[email protected]>
Cc: Greg Ungerer <[email protected]>
Cc: Guan Xuetao <[email protected]>
Cc: Guo Ren <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Helge Deller <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Ley Foon Tan <[email protected]>
Cc: Mark Salter <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Cc: Matt Turner <[email protected]>
Cc: Max Filippov <[email protected]>
Cc: Michael Ellerman <[email protected]>
Cc: Michal Simek <[email protected]>
Cc: Nick Hu <[email protected]>
Cc: Paul Walmsley <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Rich Felker <[email protected]>
Cc: Russell King <[email protected]>
Cc: Stafford Horne <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Vincent Chen <[email protected]>
Cc: Vineet Gupta <[email protected]>
Cc: Will Deacon <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Linus Torvalds <[email protected]>
132 lines
4.0 KiB
C
132 lines
4.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef LINUX_CRASH_DUMP_H
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#define LINUX_CRASH_DUMP_H
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#include <linux/kexec.h>
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#include <linux/proc_fs.h>
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#include <linux/elf.h>
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#include <linux/pgtable.h>
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#include <uapi/linux/vmcore.h>
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#include <linux/pgtable.h> /* for pgprot_t */
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#ifdef CONFIG_CRASH_DUMP
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#define ELFCORE_ADDR_MAX (-1ULL)
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#define ELFCORE_ADDR_ERR (-2ULL)
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extern unsigned long long elfcorehdr_addr;
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extern unsigned long long elfcorehdr_size;
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extern int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size);
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extern void elfcorehdr_free(unsigned long long addr);
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extern ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos);
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extern ssize_t elfcorehdr_read_notes(char *buf, size_t count, u64 *ppos);
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extern int remap_oldmem_pfn_range(struct vm_area_struct *vma,
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unsigned long from, unsigned long pfn,
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unsigned long size, pgprot_t prot);
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extern ssize_t copy_oldmem_page(unsigned long, char *, size_t,
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unsigned long, int);
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extern ssize_t copy_oldmem_page_encrypted(unsigned long pfn, char *buf,
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size_t csize, unsigned long offset,
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int userbuf);
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void vmcore_cleanup(void);
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/* Architecture code defines this if there are other possible ELF
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* machine types, e.g. on bi-arch capable hardware. */
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#ifndef vmcore_elf_check_arch_cross
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#define vmcore_elf_check_arch_cross(x) 0
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#endif
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/*
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* Architecture code can redefine this if there are any special checks
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* needed for 32-bit ELF or 64-bit ELF vmcores. In case of 32-bit
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* only architecture, vmcore_elf64_check_arch can be set to zero.
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*/
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#ifndef vmcore_elf32_check_arch
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#define vmcore_elf32_check_arch(x) elf_check_arch(x)
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#endif
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#ifndef vmcore_elf64_check_arch
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#define vmcore_elf64_check_arch(x) (elf_check_arch(x) || vmcore_elf_check_arch_cross(x))
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#endif
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/*
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* is_kdump_kernel() checks whether this kernel is booting after a panic of
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* previous kernel or not. This is determined by checking if previous kernel
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* has passed the elf core header address on command line.
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*
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* This is not just a test if CONFIG_CRASH_DUMP is enabled or not. It will
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* return true if CONFIG_CRASH_DUMP=y and if kernel is booting after a panic
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* of previous kernel.
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*/
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static inline bool is_kdump_kernel(void)
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{
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return elfcorehdr_addr != ELFCORE_ADDR_MAX;
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}
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/* is_vmcore_usable() checks if the kernel is booting after a panic and
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* the vmcore region is usable.
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*
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* This makes use of the fact that due to alignment -2ULL is not
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* a valid pointer, much in the vain of IS_ERR(), except
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* dealing directly with an unsigned long long rather than a pointer.
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*/
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static inline int is_vmcore_usable(void)
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{
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return is_kdump_kernel() && elfcorehdr_addr != ELFCORE_ADDR_ERR ? 1 : 0;
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}
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/* vmcore_unusable() marks the vmcore as unusable,
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* without disturbing the logic of is_kdump_kernel()
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*/
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static inline void vmcore_unusable(void)
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{
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if (is_kdump_kernel())
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elfcorehdr_addr = ELFCORE_ADDR_ERR;
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}
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#define HAVE_OLDMEM_PFN_IS_RAM 1
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extern int register_oldmem_pfn_is_ram(int (*fn)(unsigned long pfn));
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extern void unregister_oldmem_pfn_is_ram(void);
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#else /* !CONFIG_CRASH_DUMP */
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static inline bool is_kdump_kernel(void) { return 0; }
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#endif /* CONFIG_CRASH_DUMP */
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/* Device Dump information to be filled by drivers */
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struct vmcoredd_data {
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char dump_name[VMCOREDD_MAX_NAME_BYTES]; /* Unique name of the dump */
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unsigned int size; /* Size of the dump */
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/* Driver's registered callback to be invoked to collect dump */
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int (*vmcoredd_callback)(struct vmcoredd_data *data, void *buf);
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};
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#ifdef CONFIG_PROC_VMCORE_DEVICE_DUMP
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int vmcore_add_device_dump(struct vmcoredd_data *data);
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#else
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static inline int vmcore_add_device_dump(struct vmcoredd_data *data)
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{
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return -EOPNOTSUPP;
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}
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#endif /* CONFIG_PROC_VMCORE_DEVICE_DUMP */
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#ifdef CONFIG_PROC_VMCORE
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ssize_t read_from_oldmem(char *buf, size_t count,
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u64 *ppos, int userbuf,
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bool encrypted);
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#else
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static inline ssize_t read_from_oldmem(char *buf, size_t count,
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u64 *ppos, int userbuf,
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bool encrypted)
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{
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return -EOPNOTSUPP;
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}
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#endif /* CONFIG_PROC_VMCORE */
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#endif /* LINUX_CRASHDUMP_H */
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