[PATCH 4.19] Revert "y2038: rusage: use __kernel_old_timeval"

Ben Hutchings
2024-04-29T21:44:58Z

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This reverts commit d5e38d6b84d6d21a4f8a4f555a0908b6d9ffe224, which
was commit bdd565f817a74b9e30edec108f7cb1dbc762b8a6 upstream. It
broke the build for alpha and that can't be fixed without backporting
other more intrusive y2038 changes.

This was not a completely clean revert as the affected code in
getrusage() was moved by subsequent changes.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
arch/alpha/kernel/osf_sys.c | 2 +-
include/uapi/linux/resource.h | 4 ++--
kernel/sys.c | 4 ++--
3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/kernel/osf_sys.c b/arch/alpha/kernel/osf_sys.c
index d5694f263dd6..cff52d8ffdb1 100644
--- a/arch/alpha/kernel/osf_sys.c
+++ b/arch/alpha/kernel/osf_sys.c
@@ -964,7 +964,7 @@ put_tv32(struct timeval32 __user *o, struct timespec64 *i)
}

static inline long
-put_tv_to_tv32(struct timeval32 __user *o, struct __kernel_old_timeval *i)
+put_tv_to_tv32(struct timeval32 __user *o, struct timeval *i)
{
return copy_to_user(o, &(struct timeval32){
.tv_sec = i->tv_sec,
diff --git a/include/uapi/linux/resource.h b/include/uapi/linux/resource.h
index 74ef57b38f9f..cc00fd079631 100644
--- a/include/uapi/linux/resource.h
+++ b/include/uapi/linux/resource.h
@@ -22,8 +22,8 @@
#define RUSAGE_THREAD 1 /* only the calling thread */

struct rusage {
- struct __kernel_old_timeval ru_utime; /* user time used */
- struct __kernel_old_timeval ru_stime; /* system time used */
+ struct timeval ru_utime; /* user time used */
+ struct timeval ru_stime; /* system time used */
__kernel_long_t ru_maxrss; /* maximum resident set size */
__kernel_long_t ru_ixrss; /* integral shared memory size */
__kernel_long_t ru_idrss; /* integral unshared data size */
diff --git a/kernel/sys.c b/kernel/sys.c
index 62930aac0bad..690ab55449e7 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -1795,8 +1795,8 @@ void getrusage(struct task_struct *p, int who, struct rusage *r)

out_children:
r->ru_maxrss = maxrss * (PAGE_SIZE / 1024); /* convert pages to KBs */
- r->ru_utime = ns_to_kernel_old_timeval(utime);
- r->ru_stime = ns_to_kernel_old_timeval(stime);
+ r->ru_utime = ns_to_timeval(utime);
+ r->ru_stime = ns_to_timeval(stime);
}

SYSCALL_DEFINE2(getrusage, int, who, struct rusage __user *, ru)

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