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authorVivek Goyal <vgoyal@redhat.com>2014-08-08 14:25:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-08 15:57:32 -0700
commitf0895685c7fd8c938c91a9d8a6f7c11f22df58d2 (patch)
treeee4ddc38c68addf2e0c0ed77f6be53e2521c93e6 /kernel/kexec.c
parent815d5704a337a662bf960757edbff7a0680d40fd (diff)
downloadlinux-f0895685c7fd8c938c91a9d8a6f7c11f22df58d2.tar.gz
kexec: new syscall kexec_file_load() declaration
This is the new syscall kexec_file_load() declaration/interface. I have reserved the syscall number only for x86_64 so far. Other architectures (including i386) can reserve syscall number when they enable the support for this new syscall. Signed-off-by: Vivek Goyal <vgoyal@redhat.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Borislav Petkov <bp@suse.de> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Eric Biederman <ebiederm@xmission.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Greg Kroah-Hartman <greg@kroah.com> Cc: Dave Young <dyoung@redhat.com> Cc: WANG Chao <chaowang@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/kexec.c')
-rw-r--r--kernel/kexec.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index bfdda316697d..ec4386c1b94f 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -1058,6 +1058,13 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compat_ulong_t, entry,
}
#endif
+SYSCALL_DEFINE5(kexec_file_load, int, kernel_fd, int, initrd_fd,
+ unsigned long, cmdline_len, const char __user *, cmdline_ptr,
+ unsigned long, flags)
+{
+ return -ENOSYS;
+}
+
void crash_kexec(struct pt_regs *regs)
{
/* Take the kexec_mutex here to prevent sys_kexec_load