xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

y2038: ipc: remove __kernel_time_t reference from headers

Browse Source 
There are two structures based on time_t that conflict between libc and
kernel: timeval and timespec. Both are now renamed to __kernel_old_timeval
and __kernel_old_timespec.

For time_t, the old typedef is still __kernel_time_t. There is nothing
wrong with that name, but it would be nice to not use that going forward
as this type is used almost only in deprecated interfaces because of
the y2038 overflow.

In the IPC headers (msgbuf.h, sembuf.h, shmbuf.h), __kernel_time_t is only
used for the 64-bit variants, which are not deprecated.

Change these to a plain 'long', which is the same type as __kernel_time_t
on all 64-bit architectures anyway, to reduce the number of users of the
old type.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann
2019-11-04 21:17:26 +01:00
parent 176ed98c8a
commit caf5e32d4e
18 changed files with 55 additions and 56 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/sparc/include/uapi/asm/msgbuf.h
View File

@@ -13,9 +13,9 @@
struct msqid64_ds {
struct ipc64_perm msg_perm;
#if defined(__sparc__) && defined(__arch64__)
__kernel_time_t msg_stime; /* last msgsnd time */
__kernel_time_t msg_rtime; /* last msgrcv time */
__kernel_time_t msg_ctime; /* last change time */
long msg_stime; /* last msgsnd time */
long msg_rtime; /* last msgrcv time */
long msg_ctime; /* last change time */
#else
unsigned long msg_stime_high;
unsigned long msg_stime; /* last msgsnd time */

4
arch/sparc/include/uapi/asm/sembuf.h
View File

@@ -14,8 +14,8 @@
struct semid64_ds {
struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
#if defined(__sparc__) && defined(__arch64__)
__kernel_time_t sem_otime; /* last semop time */
__kernel_time_t sem_ctime; /* last change time */
long sem_otime; /* last semop time */
long sem_ctime; /* last change time */
#else
unsigned long sem_otime_high;
unsigned long sem_otime; /* last semop time */

6
arch/sparc/include/uapi/asm/shmbuf.h
View File

@@ -14,9 +14,9 @@
struct shmid64_ds {
struct ipc64_perm shm_perm; /* operation perms */
#if defined(__sparc__) && defined(__arch64__)
__kernel_time_t shm_atime; /* last attach time */
__kernel_time_t shm_dtime; /* last detach time */
__kernel_time_t shm_ctime; /* last change time */
long shm_atime; /* last attach time */
long shm_dtime; /* last detach time */
long shm_ctime; /* last change time */
#else
unsigned long shm_atime_high;
unsigned long shm_atime; /* last attach time */