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Commit 1ba73b99 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] kexec: Use EFI_LOADER_DATA for ELF core header
  [IA64] permon use-after-free fix
  [IA64] sync compat getdents
  [IA64] always build arch/ia64/lib/xor.o
  [IA64] Remove stack hard limit on ia64
  [IA64] point saved_max_pfn to the max_pfn of the entire system
  Revert "[IA64] swiotlb abstraction (e.g. for Xen)"
parents 185d84b4 cee87af2

arch/ia64/ia32/sys_ia32.c

+7 −3
Original line number Diff line number Diff line
@@ -1267,6 +1267,10 @@ sys32_getdents (unsigned int fd, struct compat_dirent __user *dirent, unsigned i 
	struct getdents32_callback buf;

	int error;



	error = -EFAULT;

	if (!access_ok(VERIFY_WRITE, dirent, count))

		goto out;



	error = -EBADF;

	file = fget(fd);

	if (!file)
@@ -1283,9 +1287,9 @@ sys32_getdents (unsigned int fd, struct compat_dirent __user *dirent, unsigned i 
	error = buf.error;

	lastdirent = buf.previous;

	if (lastdirent) {

		error = -EINVAL;

		if (put_user(file->f_pos, &lastdirent->d_off))

			goto out_putf;

			error = -EFAULT;

		else

			error = count - buf.count;

	}

arch/ia64/kernel/efi.c

+36 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
 *	Skip non-WB memory and ignore empty memory ranges.

 */

#include <linux/module.h>

#include <linux/bootmem.h>

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/types.h>
@@ -1009,6 +1010,11 @@ efi_memmap_init(unsigned long *s, unsigned long *e) 
		} else

			ae = efi_md_end(md);



#ifdef CONFIG_CRASH_DUMP

		/* saved_max_pfn should ignore max_addr= command line arg */

		if (saved_max_pfn < (ae >> PAGE_SHIFT))

			saved_max_pfn = (ae >> PAGE_SHIFT);

#endif

		/* keep within max_addr= and min_addr= command line arg */

		as = max(as, min_addr);

		ae = min(ae, max_addr);
@@ -1177,3 +1183,33 @@ kdump_find_rsvd_region (unsigned long size, 
  return ~0UL;

}

#endif



#ifdef CONFIG_PROC_VMCORE

/* locate the size find a the descriptor at a certain address */

unsigned long

vmcore_find_descriptor_size (unsigned long address)

{

	void *efi_map_start, *efi_map_end, *p;

	efi_memory_desc_t *md;

	u64 efi_desc_size;

	unsigned long ret = 0;



	efi_map_start = __va(ia64_boot_param->efi_memmap);

	efi_map_end   = efi_map_start + ia64_boot_param->efi_memmap_size;

	efi_desc_size = ia64_boot_param->efi_memdesc_size;



	for (p = efi_map_start; p < efi_map_end; p += efi_desc_size) {

		md = p;

		if (efi_wb(md) && md->type == EFI_LOADER_DATA

		    && md->phys_addr == address) {

			ret = efi_md_size(md);

			break;

		}

	}



	if (ret == 0)

		printk(KERN_WARNING "Cannot locate EFI vmcore descriptor\n");



	return ret;

}

#endif

arch/ia64/kernel/perfmon.c

+7 −4
Original line number Diff line number Diff line
@@ -2299,7 +2299,7 @@ pfm_remap_buffer(struct vm_area_struct *vma, unsigned long buf, unsigned long ad 
 * allocate a sampling buffer and remaps it into the user address space of the task

 */

static int

pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned long rsize, void **user_vaddr)

pfm_smpl_buffer_alloc(struct task_struct *task, struct file *filp, pfm_context_t *ctx, unsigned long rsize, void **user_vaddr)

{

	struct mm_struct *mm = task->mm;

	struct vm_area_struct *vma = NULL;
@@ -2349,6 +2349,7 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon 
	 * partially initialize the vma for the sampling buffer

	 */

	vma->vm_mm	     = mm;

	vma->vm_file	     = filp;

	vma->vm_flags	     = VM_READ| VM_MAYREAD |VM_RESERVED;

	vma->vm_page_prot    = PAGE_READONLY; /* XXX may need to change */
@@ -2387,6 +2388,8 @@ pfm_smpl_buffer_alloc(struct task_struct *task, pfm_context_t *ctx, unsigned lon 
		goto error;

	}



	get_file(filp);



	/*

	 * now insert the vma in the vm list for the process, must be

	 * done with mmap lock held
@@ -2464,7 +2467,7 @@ pfarg_is_sane(struct task_struct *task, pfarg_context_t *pfx) 
}



static int

pfm_setup_buffer_fmt(struct task_struct *task, pfm_context_t *ctx, unsigned int ctx_flags,

pfm_setup_buffer_fmt(struct task_struct *task, struct file *filp, pfm_context_t *ctx, unsigned int ctx_flags,

		     unsigned int cpu, pfarg_context_t *arg)

{

	pfm_buffer_fmt_t *fmt = NULL;
@@ -2505,7 +2508,7 @@ pfm_setup_buffer_fmt(struct task_struct *task, pfm_context_t *ctx, unsigned int 
		/*

		 * buffer is always remapped into the caller's address space

		 */

		ret = pfm_smpl_buffer_alloc(current, ctx, size, &uaddr);

		ret = pfm_smpl_buffer_alloc(current, filp, ctx, size, &uaddr);

		if (ret) goto error;



		/* keep track of user address of buffer */
@@ -2716,7 +2719,7 @@ pfm_context_create(pfm_context_t *ctx, void *arg, int count, struct pt_regs *reg 
	 * does the user want to sample?

	 */

	if (pfm_uuid_cmp(req->ctx_smpl_buf_id, pfm_null_uuid)) {

		ret = pfm_setup_buffer_fmt(current, ctx, ctx_flags, 0, req);

		ret = pfm_setup_buffer_fmt(current, filp, ctx, ctx_flags, 0, req);

		if (ret) goto buffer_error;

	}

arch/ia64/kernel/setup.c

+30 −0
Original line number Diff line number Diff line
@@ -251,6 +251,12 @@ reserve_memory (void) 
	}

#endif



#ifdef CONFIG_PROC_VMCORE

	if (reserve_elfcorehdr(&rsvd_region[n].start,

			       &rsvd_region[n].end) == 0)

		n++;

#endif



	efi_memmap_init(&rsvd_region[n].start, &rsvd_region[n].end);

	n++;
@@ -453,6 +459,30 @@ static int __init parse_elfcorehdr(char *arg) 
	return 0;

}

early_param("elfcorehdr", parse_elfcorehdr);



int __init reserve_elfcorehdr(unsigned long *start, unsigned long *end)

{

	unsigned long length;



	/* We get the address using the kernel command line,

	 * but the size is extracted from the EFI tables.

	 * Both address and size are required for reservation

	 * to work properly.

	 */



	if (elfcorehdr_addr >= ELFCORE_ADDR_MAX)

		return -EINVAL;



	if ((length = vmcore_find_descriptor_size(elfcorehdr_addr)) == 0) {

		elfcorehdr_addr = ELFCORE_ADDR_MAX;

		return -EINVAL;

	}



	*start = (unsigned long)__va(elfcorehdr_addr);

	*end = *start + length;

	return 0;

}



#endif /* CONFIG_PROC_VMCORE */



void __init

arch/ia64/lib/Makefile

+1 −2
Original line number Diff line number Diff line
@@ -9,12 +9,11 @@ lib-y := __divsi3.o __udivsi3.o __modsi3.o __umodsi3.o \ 
	checksum.o clear_page.o csum_partial_copy.o			\

	clear_user.o strncpy_from_user.o strlen_user.o strnlen_user.o	\

	flush.o ip_fast_csum.o do_csum.o				\

	memset.o strlen.o

	memset.o strlen.o xor.o



lib-$(CONFIG_ITANIUM)	+= copy_page.o copy_user.o memcpy.o

lib-$(CONFIG_MCKINLEY)	+= copy_page_mck.o memcpy_mck.o

lib-$(CONFIG_PERFMON)	+= carta_random.o

lib-$(CONFIG_MD_RAID456)	+= xor.o



AFLAGS___divdi3.o	=

AFLAGS___udivdi3.o	= -DUNSIGNED