From: Michael Holzheu <[email protected]> On s390 we create checksums for the loaded kexec segments case of kdump. Therefore we need an additional callback at the end of the kexec_load() system call. This patch introduces machine_kexec_finish() with an empty implementation for all architectures that do not need the callback.
Signed-off-by: Michael Holzheu <[email protected]> --- include/linux/kexec.h | 1 + kernel/kexec.c | 8 ++++++++ 2 files changed, 9 insertions(+) --- a/include/linux/kexec.h +++ b/include/linux/kexec.h @@ -115,6 +115,7 @@ struct kimage { /* kexec interface functions */ extern void machine_kexec(struct kimage *image); extern int machine_kexec_prepare(struct kimage *image); +extern void machine_kexec_finish(struct kimage *image, int flags); extern void machine_kexec_cleanup(struct kimage *image); extern asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -1017,6 +1017,7 @@ SYSCALL_DEFINE4(kexec_load, unsigned lon kimage_terminate(image); } /* Install the new kernel, and Uninstall the old */ + machine_kexec_finish(image, flags); image = xchg(dest_image, image); out: @@ -1026,6 +1027,13 @@ out: return result; } +/* + * provide an empty default implementation here -- architecture + * code may override this + */ +void __weak machine_kexec_finish(struct kimage *image, int flags) +{} + #ifdef CONFIG_COMPAT asmlinkage long compat_sys_kexec_load(unsigned long entry, unsigned long nr_segments, _______________________________________________ kexec mailing list [email protected] http://lists.infradead.org/mailman/listinfo/kexec
