diff options
Diffstat (limited to 'freed-ora/tags/f27/4.15.9-300.fc27.gnu/crash-driver.patch')
| -rw-r--r-- | freed-ora/tags/f27/4.15.9-300.fc27.gnu/crash-driver.patch | 722 |
1 files changed, 722 insertions, 0 deletions
diff --git a/freed-ora/tags/f27/4.15.9-300.fc27.gnu/crash-driver.patch b/freed-ora/tags/f27/4.15.9-300.fc27.gnu/crash-driver.patch new file mode 100644 index 000000000..715ec54e8 --- /dev/null +++ b/freed-ora/tags/f27/4.15.9-300.fc27.gnu/crash-driver.patch @@ -0,0 +1,722 @@ +From 973e23bf27b0b2e5021321357fc570cccea3104c Mon Sep 17 00:00:00 2001 +From: Dave Anderson <anderson@redhat.com> +Date: Tue, 26 Nov 2013 12:42:46 -0500 +Subject: [PATCH] crash-driver + +Bugzilla: N/A +Upstream-status: Fedora mustard +--- + arch/arm/include/asm/crash-driver.h | 6 ++ + arch/arm64/include/asm/crash-driver.h | 6 ++ + arch/ia64/include/asm/crash-driver.h | 90 ++++++++++++++++++++++ + arch/ia64/kernel/ia64_ksyms.c | 3 + + arch/powerpc/include/asm/crash-driver.h | 6 ++ + arch/s390/include/asm/crash-driver.h | 60 +++++++++++++++ + arch/s390/mm/maccess.c | 2 + + arch/x86/include/asm/crash-driver.h | 6 ++ + drivers/char/Kconfig | 3 + + drivers/char/Makefile | 2 + + drivers/char/crash.c | 128 ++++++++++++++++++++++++++++++++ + include/asm-generic/crash-driver.h | 72 ++++++++++++++++++ + 12 files changed, 384 insertions(+) + create mode 100644 arch/arm/include/asm/crash-driver.h + create mode 100644 arch/arm64/include/asm/crash-driver.h + create mode 100644 arch/ia64/include/asm/crash-driver.h + create mode 100644 arch/powerpc/include/asm/crash-driver.h + create mode 100644 arch/s390/include/asm/crash-driver.h + create mode 100644 arch/x86/include/asm/crash-driver.h + create mode 100644 drivers/char/crash.c + create mode 100644 include/asm-generic/crash-driver.h + +diff --git a/arch/arm/include/asm/crash-driver.h b/arch/arm/include/asm/crash-driver.h +new file mode 100644 +index 0000000..06e7ae9 +--- /dev/null ++++ b/arch/arm/include/asm/crash-driver.h +@@ -0,0 +1,6 @@ ++#ifndef _ARM_CRASH_H ++#define _ARM_CRASH_H ++ ++#include <asm-generic/crash-driver.h> ++ ++#endif /* _ARM_CRASH_H */ +diff --git a/arch/arm64/include/asm/crash-driver.h b/arch/arm64/include/asm/crash-driver.h +new file mode 100644 +index 0000000..43b26da +--- /dev/null ++++ b/arch/arm64/include/asm/crash-driver.h +@@ -0,0 +1,6 @@ ++#ifndef _ARM64_CRASH_H ++#define _ARM64_CRASH_H ++ ++#include <asm-generic/crash-driver.h> ++ ++#endif /* _ARM64_CRASH_H */ +diff --git a/arch/ia64/include/asm/crash-driver.h b/arch/ia64/include/asm/crash-driver.h +new file mode 100644 +index 0000000..404bcb9 +--- /dev/null ++++ b/arch/ia64/include/asm/crash-driver.h +@@ -0,0 +1,90 @@ ++#ifndef _ASM_IA64_CRASH_H ++#define _ASM_IA64_CRASH_H ++ ++/* ++ * linux/include/asm-ia64/crash-driver.h ++ * ++ * Copyright (c) 2004 Red Hat, Inc. All rights reserved. ++ * ++ * 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, or (at your option) ++ * any later version. ++ * ++ * 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. ++ * ++ */ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/efi.h> ++#include <linux/mm.h> ++#include <asm/mmzone.h> ++ ++static inline void * ++map_virtual(u64 offset, struct page **pp) ++{ ++ struct page *page; ++ unsigned long pfn; ++ u32 type; ++ ++ if (REGION_NUMBER(offset) == 5) { ++ char byte; ++ ++ if (__get_user(byte, (char *)offset) == 0) ++ return (void *)offset; ++ else ++ return NULL; ++ } ++ ++ switch (type = efi_mem_type(offset)) ++ { ++ case EFI_LOADER_CODE: ++ case EFI_LOADER_DATA: ++ case EFI_BOOT_SERVICES_CODE: ++ case EFI_BOOT_SERVICES_DATA: ++ case EFI_CONVENTIONAL_MEMORY: ++ break; ++ ++ default: ++ printk(KERN_INFO ++ "crash memory driver: invalid memory type for %lx: %d\n", ++ offset, type); ++ return NULL; ++ } ++ ++ pfn = offset >> PAGE_SHIFT; ++ ++ if (!pfn_valid(pfn)) { ++ printk(KERN_INFO ++ "crash memory driver: invalid pfn: %lx )\n", pfn); ++ return NULL; ++ } ++ ++ page = pfn_to_page(pfn); ++ ++ if (!page->virtual) { ++ printk(KERN_INFO ++ "crash memory driver: offset: %lx page: %lx page->virtual: NULL\n", ++ offset, (unsigned long)page); ++ return NULL; ++ } ++ ++ return (page->virtual + (offset & (PAGE_SIZE-1))); ++} ++ ++static inline void unmap_virtual(struct page *page) ++{ ++ return; ++} ++ ++#endif /* __KERNEL__ */ ++ ++#endif /* _ASM_IA64_CRASH_H */ +diff --git a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c +index d111248..b14b4c6 100644 +--- a/arch/ia64/kernel/ia64_ksyms.c ++++ b/arch/ia64/kernel/ia64_ksyms.c +@@ -9,3 +9,6 @@ + EXPORT_SYMBOL(min_low_pfn); /* defined by bootmem.c, but not exported by generic code */ + EXPORT_SYMBOL(max_low_pfn); /* defined by bootmem.c, but not exported by generic code */ + #endif ++ ++#include <linux/efi.h> ++EXPORT_SYMBOL_GPL(efi_mem_type); +diff --git a/arch/powerpc/include/asm/crash-driver.h b/arch/powerpc/include/asm/crash-driver.h +new file mode 100644 +index 0000000..50092d9 +--- /dev/null ++++ b/arch/powerpc/include/asm/crash-driver.h +@@ -0,0 +1,6 @@ ++#ifndef _PPC64_CRASH_H ++#define _PPC64_CRASH_H ++ ++#include <asm-generic/crash-driver.h> ++ ++#endif /* _PPC64_CRASH_H */ +diff --git a/arch/s390/include/asm/crash-driver.h b/arch/s390/include/asm/crash-driver.h +new file mode 100644 +index 0000000..552be5e +--- /dev/null ++++ b/arch/s390/include/asm/crash-driver.h +@@ -0,0 +1,60 @@ ++#ifndef _S390_CRASH_H ++#define _S390_CRASH_H ++ ++#ifdef __KERNEL__ ++ ++#include <linux/mm.h> ++#include <linux/highmem.h> ++ ++/* ++ * For swapped prefix pages get bounce buffer using xlate_dev_mem_ptr() ++ */ ++static inline void *map_virtual(u64 offset, struct page **pp) ++{ ++ struct page *page; ++ unsigned long pfn; ++ void *vaddr; ++ ++ vaddr = xlate_dev_mem_ptr(offset); ++ pfn = ((unsigned long) vaddr) >> PAGE_SHIFT; ++ if ((unsigned long) vaddr != offset) ++ page = pfn_to_page(pfn); ++ else ++ page = NULL; ++ ++ if (!page_is_ram(pfn)) { ++ printk(KERN_INFO ++ "crash memory driver: !page_is_ram(pfn: %lx)\n", pfn); ++ return NULL; ++ } ++ ++ if (!pfn_valid(pfn)) { ++ printk(KERN_INFO ++ "crash memory driver: invalid pfn: %lx )\n", pfn); ++ return NULL; ++ } ++ ++ *pp = page; ++ return vaddr; ++} ++ ++/* ++ * Free bounce buffer if necessary ++ */ ++static inline void unmap_virtual(struct page *page) ++{ ++ void *vaddr; ++ ++ if (page) { ++ /* ++ * Because for bounce buffers vaddr will never be 0 ++ * unxlate_dev_mem_ptr() will always free the bounce buffer. ++ */ ++ vaddr = (void *)(page_to_pfn(page) << PAGE_SHIFT); ++ unxlate_dev_mem_ptr(0, vaddr); ++ } ++} ++ ++#endif /* __KERNEL__ */ ++ ++#endif /* _S390_CRASH_H */ +diff --git a/arch/s390/mm/maccess.c b/arch/s390/mm/maccess.c +index 792f9c6..3197995 100644 +--- a/arch/s390/mm/maccess.c ++++ b/arch/s390/mm/maccess.c +@@ -201,6 +201,7 @@ void *xlate_dev_mem_ptr(phys_addr_t addr) + put_online_cpus(); + return bounce; + } ++EXPORT_SYMBOL_GPL(xlate_dev_mem_ptr); + + /* + * Free converted buffer for /dev/mem access (if necessary) +@@ -210,3 +211,4 @@ void unxlate_dev_mem_ptr(phys_addr_t addr, void *buf) + if ((void *) addr != buf) + free_page((unsigned long) buf); + } ++EXPORT_SYMBOL_GPL(unxlate_dev_mem_ptr); +diff --git a/arch/x86/include/asm/crash-driver.h b/arch/x86/include/asm/crash-driver.h +new file mode 100644 +index 0000000..fd4736e +--- /dev/null ++++ b/arch/x86/include/asm/crash-driver.h +@@ -0,0 +1,6 @@ ++#ifndef _X86_CRASH_H ++#define _X86_CRASH_H ++ ++#include <asm-generic/crash-driver.h> ++ ++#endif /* _X86_CRASH_H */ +diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig +index dcc0973..99b99d5 100644 +--- a/drivers/char/Kconfig ++++ b/drivers/char/Kconfig +@@ -4,6 +4,9 @@ + + menu "Character devices" + ++config CRASH ++ tristate "Crash Utility memory driver" ++ + source "drivers/tty/Kconfig" + + config DEVMEM +diff --git a/drivers/char/Makefile b/drivers/char/Makefile +index 6e6c244..29cc9c8 100644 +--- a/drivers/char/Makefile ++++ b/drivers/char/Makefile +@@ -60,3 +60,5 @@ js-rtc-y = rtc.o + obj-$(CONFIG_TILE_SROM) += tile-srom.o + obj-$(CONFIG_XILLYBUS) += xillybus/ + obj-$(CONFIG_POWERNV_OP_PANEL) += powernv-op-panel.o ++ ++obj-$(CONFIG_CRASH) += crash.o +diff --git a/drivers/char/crash.c b/drivers/char/crash.c +new file mode 100644 +index 0000000..085378a +--- /dev/null ++++ b/drivers/char/crash.c +@@ -0,0 +1,128 @@ ++/* ++ * linux/drivers/char/crash.c ++ * ++ * Copyright (C) 2004 Dave Anderson <anderson@redhat.com> ++ * Copyright (C) 2004 Red Hat, Inc. ++ */ ++ ++/****************************************************************************** ++ * ++ * 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, or (at your option) ++ * any later version. ++ * ++ * 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. ++ * ++ *****************************************************************************/ ++ ++#include <linux/module.h> ++#include <linux/types.h> ++#include <linux/miscdevice.h> ++#include <linux/init.h> ++#include <asm/io.h> ++#include <asm/uaccess.h> ++#include <asm/types.h> ++#include <asm/crash-driver.h> ++ ++#define CRASH_VERSION "1.0" ++ ++/* ++ * These are the file operation functions that allow crash utility ++ * access to physical memory. ++ */ ++ ++static loff_t ++crash_llseek(struct file * file, loff_t offset, int orig) ++{ ++ switch (orig) { ++ case 0: ++ file->f_pos = offset; ++ return file->f_pos; ++ case 1: ++ file->f_pos += offset; ++ return file->f_pos; ++ default: ++ return -EINVAL; ++ } ++} ++ ++/* ++ * Determine the page address for an address offset value, ++ * get a virtual address for it, and copy it out. ++ * Accesses must fit within a page. ++ */ ++static ssize_t ++crash_read(struct file *file, char *buf, size_t count, loff_t *poff) ++{ ++ void *vaddr; ++ struct page *page; ++ u64 offset; ++ ssize_t read; ++ ++ offset = *poff; ++ if (offset >> PAGE_SHIFT != (offset+count-1) >> PAGE_SHIFT) ++ return -EINVAL; ++ ++ vaddr = map_virtual(offset, &page); ++ if (!vaddr) ++ return -EFAULT; ++ ++ if (copy_to_user(buf, vaddr, count)) { ++ unmap_virtual(page); ++ return -EFAULT; ++ } ++ unmap_virtual(page); ++ ++ read = count; ++ *poff += read; ++ return read; ++} ++ ++static struct file_operations crash_fops = { ++ .owner = THIS_MODULE, ++ .llseek = crash_llseek, ++ .read = crash_read, ++}; ++ ++static struct miscdevice crash_dev = { ++ MISC_DYNAMIC_MINOR, ++ "crash", ++ &crash_fops ++}; ++ ++static int __init ++crash_init(void) ++{ ++ int ret; ++ ++ ret = misc_register(&crash_dev); ++ if (ret) { ++ printk(KERN_ERR ++ "crash memory driver: cannot misc_register (MISC_DYNAMIC_MINOR)\n"); ++ goto out; ++ } ++ ++ ret = 0; ++ printk(KERN_INFO "crash memory driver: version %s\n", CRASH_VERSION); ++out: ++ return ret; ++} ++ ++static void __exit ++crash_cleanup_module(void) ++{ ++ misc_deregister(&crash_dev); ++} ++ ++module_init(crash_init); ++module_exit(crash_cleanup_module); ++ ++MODULE_LICENSE("GPL"); +diff --git a/include/asm-generic/crash-driver.h b/include/asm-generic/crash-driver.h +new file mode 100644 +index 0000000..25ab986 +--- /dev/null ++++ b/include/asm-generic/crash-driver.h +@@ -0,0 +1,72 @@ ++#ifndef __CRASH_H__ ++#define __CRASH_H__ ++ ++/* ++ * include/linux/crash-driver.h ++ * ++ * Copyright (c) 2013 Red Hat, Inc. All rights reserved. ++ * ++ * 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, or (at your option) ++ * any later version. ++ * ++ * 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. ++ * ++ */ ++ ++#ifdef __KERNEL__ ++ ++#include <linux/mm.h> ++#include <linux/highmem.h> ++ ++static inline void * ++map_virtual(u64 offset, struct page **pp) ++{ ++ struct page *page; ++ unsigned long pfn; ++ void *vaddr; ++ ++ pfn = (unsigned long)(offset >> PAGE_SHIFT); ++ ++ if (!page_is_ram(pfn)) { ++ printk(KERN_INFO ++ "crash memory driver: !page_is_ram(pfn: %lx)\n", pfn); ++ return NULL; ++ } ++ ++ if (!pfn_valid(pfn)) { ++ printk(KERN_INFO ++ "crash memory driver: invalid pfn: %lx )\n", pfn); ++ return NULL; ++ } ++ ++ page = pfn_to_page(pfn); ++ ++ vaddr = kmap(page); ++ if (!vaddr) { ++ printk(KERN_INFO ++ "crash memory driver: pfn: %lx kmap(page: %lx) failed\n", ++ pfn, (unsigned long)page); ++ return NULL; ++ } ++ ++ *pp = page; ++ return (vaddr + (offset & (PAGE_SIZE-1))); ++} ++ ++static inline void unmap_virtual(struct page *page) ++{ ++ kunmap(page); ++} ++ ++#endif /* __KERNEL__ */ ++ ++#endif /* __CRASH_H__ */ +-- +2.7.4 + +From 23d8bd48303acda2d3a95a3e1a662784a4fa9fcd Mon Sep 17 00:00:00 2001 +From: Fedora Kernel Team <kernel-team@fedoraproject.org> +Date: Tue, 20 Sep 2016 19:39:46 +0200 +Subject: [PATCH] Update of crash driver to handle CONFIG_HARDENED_USERCOPY and + to restrict the supported architectures. + +--- + drivers/char/Kconfig | 1 + + drivers/char/crash.c | 33 ++++++++++++++++++++++++++++++--- + 2 files changed, 31 insertions(+), 3 deletions(-) + +diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig +index 99b99d5..be6a3ae 100644 +--- a/drivers/char/Kconfig ++++ b/drivers/char/Kconfig +@@ -6,6 +6,7 @@ menu "Character devices" + + config CRASH + tristate "Crash Utility memory driver" ++ depends on X86_32 || X86_64 || ARM || ARM64 || PPC64 || S390 + + source "drivers/tty/Kconfig" + +diff --git a/drivers/char/crash.c b/drivers/char/crash.c +index 085378a..0258bf8 100644 +--- a/drivers/char/crash.c ++++ b/drivers/char/crash.c +@@ -32,7 +32,7 @@ + #include <asm/types.h> + #include <asm/crash-driver.h> + +-#define CRASH_VERSION "1.0" ++#define CRASH_VERSION "1.2" + + /* + * These are the file operation functions that allow crash utility +@@ -66,6 +66,7 @@ crash_read(struct file *file, char *buf, size_t count, loff_t *poff) + struct page *page; + u64 offset; + ssize_t read; ++ char *buffer = file->private_data; + + offset = *poff; + if (offset >> PAGE_SHIFT != (offset+count-1) >> PAGE_SHIFT) +@@ -74,8 +75,12 @@ crash_read(struct file *file, char *buf, size_t count, loff_t *poff) + vaddr = map_virtual(offset, &page); + if (!vaddr) + return -EFAULT; +- +- if (copy_to_user(buf, vaddr, count)) { ++ /* ++ * Use bounce buffer to bypass the CONFIG_HARDENED_USERCOPY ++ * kernel text restriction. ++ */ ++ memcpy(buffer, (char *)vaddr, count); ++ if (copy_to_user(buf, buffer, count)) { + unmap_virtual(page); + return -EFAULT; + } +@@ -86,10 +91,32 @@ crash_read(struct file *file, char *buf, size_t count, loff_t *poff) + return read; + } + ++static int ++crash_open(struct inode * inode, struct file * filp) ++{ ++ if (!capable(CAP_SYS_RAWIO)) ++ return -EPERM; ++ ++ filp->private_data = (void *)__get_free_page(GFP_KERNEL); ++ if (!filp->private_data) ++ return -ENOMEM; ++ ++ return 0; ++} ++ ++static int ++crash_release(struct inode *inode, struct file *filp) ++{ ++ free_pages((unsigned long)filp->private_data, 0); ++ return 0; ++} ++ + static struct file_operations crash_fops = { + .owner = THIS_MODULE, + .llseek = crash_llseek, + .read = crash_read, ++ .open = crash_open, ++ .release = crash_release, + }; + + static struct miscdevice crash_dev = { +-- +2.7.4 + +From: Dave Anderson <anderson@redhat.com> +Date: Fri, 18 Nov 2016 11:52:35 -0500 +Cc: onestero@redhat.com +Subject: [PATCH v2] Restore live system crash analysis for ARM64 + +This v2 version simplifies the copy out of the kimage_voffset value +to user-space per Oleg's suggestion. + +Upstream status: N/A + +Test: v2 version tested successfully with a modified crash utility + +The following Linux 4.6 commit breaks support for live system +crash analysis on ARM64: + + commit a7f8de168ace487fa7b88cb154e413cf40e87fc6 + Author: Ard Biesheuvel <ard.biesheuvel@linaro.org> + arm64: allow kernel Image to be loaded anywhere in physical memory + +The patchset drastically modified the kernel's virtual memory layout, +where notably the static kernel text and data image was moved from the +unity mapped region into the vmalloc region. Prior to Linux 4.6, +the kernel's __virt_to_phys() function was this: + + #define __virt_to_phys(x) (((phys_addr_t)(x) - PAGE_OFFSET + PHYS_OFFSET)) + +When running on a live system, the crash utility could determine PAGE_OFFSET +by looking at the virtual addresses compiled into the vmlinux file, and +PHYS_OFFSET can be determined by looking at /proc/iomem. + +As of Linux 4.6, it is done differently: + + #define __virt_to_phys(x) ({ \ + phys_addr_t __x = (phys_addr_t)(x); \ + __x & BIT(VA_BITS - 1) ? (__x & ~PAGE_OFFSET) + PHYS_OFFSET : \ + (__x - kimage_voffset); }) + +The PAGE_OFFSET/PHYS_OFFSET section of the conditional expression is for +traditional unity-mapped virtual addresses, but kernel text and static +data requires the new "kimage_voffset" variable. Unfortunately, the +contents of the new "kimage_voffset" variable is not available or +calculatable from a user-space perspective, even with root privileges. + +At least the ARM64 developers made its contents available to modules +with an EXPORT_SYMBOL(kimage_voffset) declaration. Accordingly, with +a modification to the /dev/crash driver to return its contents, the +crash utility can run on a live system. + +The patch allows for architecture-specific DEV_CRASH_ARCH_DATA ioctls +to be created, where this is the first instance of one. + + +--- + arch/arm64/include/asm/crash-driver.h | 16 ++++++++++++++++ + drivers/char/crash.c | 13 ++++++++++++- + 2 files changed, 28 insertions(+), 1 deletion(-) + +diff --git a/arch/arm64/include/asm/crash-driver.h b/arch/arm64/include/asm/crash-driver.h +index 43b26da..fe68e7c 100644 +--- a/arch/arm64/include/asm/crash-driver.h ++++ b/arch/arm64/include/asm/crash-driver.h +@@ -3,4 +3,20 @@ + + #include <asm-generic/crash-driver.h> + ++#define DEV_CRASH_ARCH_DATA _IOR('c', 1, long) ++ ++static long ++crash_arch_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ++{ ++ extern u64 kimage_voffset; ++ ++ switch (cmd) ++ { ++ case DEV_CRASH_ARCH_DATA: ++ return put_user(kimage_voffset, (unsigned long __user *)arg); ++ default: ++ return -EINVAL; ++ } ++} ++ + #endif /* _ARM64_CRASH_H */ +diff --git a/drivers/char/crash.c b/drivers/char/crash.c +index 0258bf8..dfb767c 100644 +--- a/drivers/char/crash.c ++++ b/drivers/char/crash.c +@@ -32,7 +32,7 @@ + #include <asm/types.h> + #include <asm/crash-driver.h> + +-#define CRASH_VERSION "1.2" ++#define CRASH_VERSION "1.3" + + /* + * These are the file operation functions that allow crash utility +@@ -111,10 +111,21 @@ crash_release(struct inode *inode, struct file *filp) + return 0; + } + ++static long ++crash_ioctl(struct file *file, unsigned int cmd, unsigned long arg) ++{ ++#ifdef DEV_CRASH_ARCH_DATA ++ return crash_arch_ioctl(file, cmd, arg); ++#else ++ return -EINVAL; ++#endif ++} ++ + static struct file_operations crash_fops = { + .owner = THIS_MODULE, + .llseek = crash_llseek, + .read = crash_read, ++ .unlocked_ioctl = crash_ioctl, + .open = crash_open, + .release = crash_release, + }; +-- +1.8.3.1 + |
