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arm64 fixes:

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- Wire up compat_sys_execveat for compat (AArch32) tasks
 - Revert 421520ba98, as this breaks our side of the boot protocol
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Will Deacon:
 - Wire up compat_sys_execveat for compat (AArch32) tasks
 - Revert 421520ba98, as this breaks our side of the boot protocol

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: partially revert "ARM: 8167/1: extend the reserved memory for initrd to be page aligned"
  arm64: compat: wire up compat_sys_execveat
This commit is contained in:
Linus Torvalds 2015-01-17 08:01:21 +13:00
commit fa818dc488
3 changed files with 4 additions and 8 deletions
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2
arch/arm64/include/asm/unistd.h
View File

@ -44,7 +44,7 @@
#define __ARM_NR_compat_cacheflush (__ARM_NR_COMPAT_BASE+2)
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE+5)
#define __NR_compat_syscalls 387
#define __NR_compat_syscalls 388
#endif
#define __ARCH_WANT_SYS_CLONE

2
arch/arm64/include/asm/unistd32.h
View File

@ -795,3 +795,5 @@ __SYSCALL(__NR_getrandom, sys_getrandom)
__SYSCALL(__NR_memfd_create, sys_memfd_create)
#define __NR_bpf 386
__SYSCALL(__NR_bpf, sys_bpf)
#define __NR_execveat 387
__SYSCALL(__NR_execveat, compat_sys_execveat)

8
arch/arm64/mm/init.c
View File

@ -335,14 +335,8 @@ static int keep_initrd;
void free_initrd_mem(unsigned long start, unsigned long end)
{
if (!keep_initrd) {
if (start == initrd_start)
start = round_down(start, PAGE_SIZE);
if (end == initrd_end)
end = round_up(end, PAGE_SIZE);
if (!keep_initrd)
free_reserved_area((void *)start, (void *)end, 0, "initrd");
}
}
static int __init keepinitrd_setup(char *__unused)