The patch titled
Subject: kexec: new syscall kexec_file_load() declaration
has been removed from the -mm tree. Its filename was
kexec-new-syscall-kexec_file_load-declaration.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Vivek Goyal <vgoyal@xxxxxxxxxx>
Subject: 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@xxxxxxxxxx>
Cc: Michael Kerrisk <mtk.manpages@xxxxxxxxx>
Cc: Borislav Petkov <bp@xxxxxxx>
Cc: Yinghai Lu <yinghai@xxxxxxxxxx>
Cc: Eric Biederman <ebiederm@xxxxxxxxxxxx>
Cc: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Matthew Garrett <mjg59@xxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <greg@xxxxxxxxx>
Cc: Dave Young <dyoung@xxxxxxxxxx>
Cc: WANG Chao <chaowang@xxxxxxxxxx>
Cc: Baoquan He <bhe@xxxxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/syscalls/syscall_64.tbl | 1 +
include/linux/syscalls.h | 4 ++++
kernel/kexec.c | 7 +++++++
kernel/sys_ni.c | 1 +
4 files changed, 13 insertions(+)
diff -puN arch/x86/syscalls/syscall_64.tbl~kexec-new-syscall-kexec_file_load-declaration arch/x86/syscalls/syscall_64.tbl
--- a/arch/x86/syscalls/syscall_64.tbl~kexec-new-syscall-kexec_file_load-declaration
+++ a/arch/x86/syscalls/syscall_64.tbl
@@ -326,6 +326,7 @@
317 common seccomp sys_seccomp
318 common getrandom sys_getrandom
319 common memfd_create sys_memfd_create
+320 common kexec_file_load sys_kexec_file_load
#
# x32-specific system call numbers start at 512 to avoid cache impact
diff -puN include/linux/syscalls.h~kexec-new-syscall-kexec_file_load-declaration include/linux/syscalls.h
--- a/include/linux/syscalls.h~kexec-new-syscall-kexec_file_load-declaration
+++ a/include/linux/syscalls.h
@@ -317,6 +317,10 @@ asmlinkage long sys_restart_syscall(void
asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,
struct kexec_segment __user *segments,
unsigned long flags);
+asmlinkage long sys_kexec_file_load(int kernel_fd, int initrd_fd,
+ unsigned long cmdline_len,
+ const char __user *cmdline_ptr,
+ unsigned long flags);
asmlinkage long sys_exit(int error_code);
asmlinkage long sys_exit_group(int error_code);
diff -puN kernel/kexec.c~kexec-new-syscall-kexec_file_load-declaration kernel/kexec.c
--- a/kernel/kexec.c~kexec-new-syscall-kexec_file_load-declaration
+++ a/kernel/kexec.c
@@ -1058,6 +1058,13 @@ COMPAT_SYSCALL_DEFINE4(kexec_load, compa
}
#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
diff -puN kernel/sys_ni.c~kexec-new-syscall-kexec_file_load-declaration kernel/sys_ni.c
--- a/kernel/sys_ni.c~kexec-new-syscall-kexec_file_load-declaration
+++ a/kernel/sys_ni.c
@@ -25,6 +25,7 @@ cond_syscall(sys_swapon);
cond_syscall(sys_swapoff);
cond_syscall(sys_kexec_load);
cond_syscall(compat_sys_kexec_load);
+cond_syscall(sys_kexec_file_load);
cond_syscall(sys_init_module);
cond_syscall(sys_finit_module);
cond_syscall(sys_delete_module);
_
Patches currently in -mm which might be from vgoyal@xxxxxxxxxx are
origin.patch
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