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y2038: core, driver and file system changes

Browse Source 
These are updates to device drivers and file systems that for some reason
 or another were not included in the kernel in the previous y2038 series.
 
 I've gone through all users of time_t again to make sure the kernel is
 in a long-term maintainable state, replacing all remaining references
 to time_t with safe alternatives.
 
 Some related parts of the series were picked up into the nfsd, xfs,
 alsa and v4l2 trees. A final set of patches in linux-mm removes the now
 unused time_t/timeval/timespec types and helper functions after all five
 branches are merged for linux-5.6, ensuring that no new users get merged.
 
 As a result, linux-5.6, or my backport of the patches to 5.4 [1], should
 be the first release that can serve as a base for a 32-bit system designed
 to run beyond year 2038, with a few remaining caveats:
 
 - All user space must be compiled with a 64-bit time_t, which will be
   supported in the coming musl-1.2 and glibc-2.32 releases, along with
   installed kernel headers from linux-5.6 or higher.
 
 - Applications that use the system call interfaces directly need to be
   ported to use the time64 syscalls added in linux-5.1 in place of the
   existing system calls. This impacts most users of futex() and seccomp()
   as well as programming languages that have their own runtime environment
   not based on libc.
 
 - Applications that use a private copy of kernel uapi header files or
   their contents may need to update to the linux-5.6 version, in
   particular for sound/asound.h, xfs/xfs_fs.h, linux/input.h,
   linux/elfcore.h, linux/sockios.h, linux/timex.h and linux/can/bcm.h.
 
 - A few remaining interfaces cannot be changed to pass a 64-bit time_t
   in a compatible way, so they must be configured to use CLOCK_MONOTONIC
   times or (with a y2106 problem) unsigned 32-bit timestamps. Most
   importantly this impacts all users of 'struct input_event'.
 
 - All y2038 problems that are present on 64-bit machines also apply to
   32-bit machines. In particular this affects file systems with on-disk
   timestamps using signed 32-bit seconds: ext4 with ext3-style small
   inodes, ext2, xfs (to be fixed soon) and ufs.
 
 Changes since v1 [2]:
 
 - Add Acks I received
 - Rebase to v5.5-rc1, dropping patches that got merged already
 - Add NFS, XFS and the final three patches from another series
 - Rewrite etnaviv patches
 - Add one late revert to avoid an etnaviv regression
 
 [1] https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=y2038-endgame
 [2] https://lore.kernel.org/lkml/20191108213257.3097633-1-arnd@arndb.de/
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Merge tag 'y2038-drivers-for-v5.6-signed' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground

Pull y2038 updates from Arnd Bergmann:
 "Core, driver and file system changes

  These are updates to device drivers and file systems that for some
  reason or another were not included in the kernel in the previous
  y2038 series.

  I've gone through all users of time_t again to make sure the kernel is
  in a long-term maintainable state, replacing all remaining references
  to time_t with safe alternatives.

  Some related parts of the series were picked up into the nfsd, xfs,
  alsa and v4l2 trees. A final set of patches in linux-mm removes the
  now unused time_t/timeval/timespec types and helper functions after
  all five branches are merged for linux-5.6, ensuring that no new users
  get merged.

  As a result, linux-5.6, or my backport of the patches to 5.4 [1],
  should be the first release that can serve as a base for a 32-bit
  system designed to run beyond year 2038, with a few remaining caveats:

   - All user space must be compiled with a 64-bit time_t, which will be
     supported in the coming musl-1.2 and glibc-2.32 releases, along
     with installed kernel headers from linux-5.6 or higher.

   - Applications that use the system call interfaces directly need to
     be ported to use the time64 syscalls added in linux-5.1 in place of
     the existing system calls. This impacts most users of futex() and
     seccomp() as well as programming languages that have their own
     runtime environment not based on libc.

   - Applications that use a private copy of kernel uapi header files or
     their contents may need to update to the linux-5.6 version, in
     particular for sound/asound.h, xfs/xfs_fs.h, linux/input.h,
     linux/elfcore.h, linux/sockios.h, linux/timex.h and
     linux/can/bcm.h.

   - A few remaining interfaces cannot be changed to pass a 64-bit
     time_t in a compatible way, so they must be configured to use
     CLOCK_MONOTONIC times or (with a y2106 problem) unsigned 32-bit
     timestamps. Most importantly this impacts all users of 'struct
     input_event'.

   - All y2038 problems that are present on 64-bit machines also apply
     to 32-bit machines. In particular this affects file systems with
     on-disk timestamps using signed 32-bit seconds: ext4 with
     ext3-style small inodes, ext2, xfs (to be fixed soon) and ufs"

[1] https://git.kernel.org/pub/scm/linux/kernel/git/arnd/playground.git/log/?h=y2038-endgame

* tag 'y2038-drivers-for-v5.6-signed' of git://git.kernel.org:/pub/scm/linux/kernel/git/arnd/playground: (21 commits)
  Revert "drm/etnaviv: reject timeouts with tv_nsec >= NSEC_PER_SEC"
  y2038: sh: remove timeval/timespec usage from headers
  y2038: sparc: remove use of struct timex
  y2038: rename itimerval to __kernel_old_itimerval
  y2038: remove obsolete jiffies conversion functions
  nfs: fscache: use timespec64 in inode auxdata
  nfs: fix timstamp debug prints
  nfs: use time64_t internally
  sunrpc: convert to time64_t for expiry
  drm/etnaviv: avoid deprecated timespec
  drm/etnaviv: reject timeouts with tv_nsec >= NSEC_PER_SEC
  drm/msm: avoid using 'timespec'
  hfs/hfsplus: use 64-bit inode timestamps
  hostfs: pass 64-bit timestamps to/from user space
  packet: clarify timestamp overflow
  tsacct: add 64-bit btime field
  acct: stop using get_seconds()
  um: ubd: use 64-bit time_t where possible
  xtensa: ISS: avoid struct timeval
  dlm: use SO_SNDTIMEO_NEW instead of SO_SNDTIMEO_OLD
  ...
This commit is contained in:
Linus Torvalds 2020-01-29 14:55:47 -08:00
commit 22b17db4ea
49 changed files with 283 additions and 266 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/sh/include/uapi/asm/sockios.h
View File

@ -10,7 +10,7 @@
#define SIOCSPGRP _IOW('s', 8, pid_t)
#define SIOCGPGRP _IOR('s', 9, pid_t)
#define SIOCGSTAMP_OLD _IOR('s', 100, struct timeval) /* Get stamp (timeval) */
#define SIOCGSTAMPNS_OLD _IOR('s', 101, struct timespec) /* Get stamp (timespec) */
#define SIOCGSTAMP_OLD _IOR('s', 100, struct __kernel_old_timeval) /* Get stamp (timeval) */
#define SIOCGSTAMPNS_OLD _IOR('s', 101, struct __kernel_old_timespec) /* Get stamp (timespec) */
#endif /* __ASM_SH_SOCKIOS_H */

33
arch/sparc/kernel/sys_sparc_64.c
View File

@ -548,34 +548,35 @@ out_unlock:
return err;
}
SYSCALL_DEFINE1(sparc_adjtimex, struct timex __user *, txc_p)
SYSCALL_DEFINE1(sparc_adjtimex, struct __kernel_timex __user *, txc_p)
{
struct timex txc; /* Local copy of parameter */
struct __kernel_timex *kt = (void *)&txc;
struct __kernel_timex txc;
struct __kernel_old_timeval *tv = (void *)&txc_p->time;
int ret;
/* Copy the user data space into the kernel copy
* structure. But bear in mind that the structures
* may change
*/
if (copy_from_user(&txc, txc_p, sizeof(struct timex)))
if (copy_from_user(&txc, txc_p, sizeof(txc)))
return -EFAULT;
/*
* override for sparc64 specific timeval type: tv_usec
* is 32 bit wide instead of 64-bit in __kernel_timex
*/
kt->time.tv_usec = txc.time.tv_usec;
ret = do_adjtimex(kt);
txc.time.tv_usec = kt->time.tv_usec;
txc.time.tv_usec = tv->tv_usec;
ret = do_adjtimex(&txc);
tv->tv_usec = txc.time.tv_usec;
return copy_to_user(txc_p, &txc, sizeof(struct timex)) ? -EFAULT : ret;
return copy_to_user(txc_p, &txc, sizeof(txc)) ? -EFAULT : ret;
}
SYSCALL_DEFINE2(sparc_clock_adjtime, const clockid_t, which_clock,struct timex __user *, txc_p)
SYSCALL_DEFINE2(sparc_clock_adjtime, const clockid_t, which_clock,
struct __kernel_timex __user *, txc_p)
{
struct timex txc; /* Local copy of parameter */
struct __kernel_timex *kt = (void *)&txc;
struct __kernel_timex txc;
struct __kernel_old_timeval *tv = (void *)&txc_p->time;
int ret;
if (!IS_ENABLED(CONFIG_POSIX_TIMERS)) {
@ -590,18 +591,18 @@ SYSCALL_DEFINE2(sparc_clock_adjtime, const clockid_t, which_clock,struct timex _
* structure. But bear in mind that the structures
* may change
*/
if (copy_from_user(&txc, txc_p, sizeof(struct timex)))
if (copy_from_user(&txc, txc_p, sizeof(txc)))
return -EFAULT;
/*
* override for sparc64 specific timeval type: tv_usec
* is 32 bit wide instead of 64-bit in __kernel_timex
*/
kt->time.tv_usec = txc.time.tv_usec;
ret = do_clock_adjtime(which_clock, kt);
txc.time.tv_usec = kt->time.tv_usec;
txc.time.tv_usec = tv->tv_usec;
ret = do_clock_adjtime(which_clock, &txc);
tv->tv_usec = txc.time.tv_usec;
return copy_to_user(txc_p, &txc, sizeof(struct timex)) ? -EFAULT : ret;
return copy_to_user(txc_p, &txc, sizeof(txc)) ? -EFAULT : ret;
}
SYSCALL_DEFINE5(utrap_install, utrap_entry_t, type,

2
arch/um/drivers/cow.h
View File

@ -11,7 +11,7 @@ extern int init_cow_file(int fd, char *cow_file, char *backing_file,
extern int file_reader(__u64 offset, char *buf, int len, void *arg);
extern int read_cow_header(int (*reader)(__u64, char *, int, void *),
void *arg, __u32 *version_out,
char **backing_file_out, time_t *mtime_out,
char **backing_file_out, long long *mtime_out,
unsigned long long *size_out, int *sectorsize_out,
__u32 *align_out, int *bitmap_offset_out);

7
arch/um/drivers/cow_user.c
View File

@ -17,6 +17,7 @@
#define PATH_LEN_V1 256
/* unsigned time_t works until year 2106 */
typedef __u32 time32_t;
struct cow_header_v1 {
@ -197,7 +198,7 @@ int write_cow_header(char *cow_file, int fd, char *backing_file,
int sectorsize, int alignment, unsigned long long *size)
{
struct cow_header_v3 *header;
unsigned long modtime;
long long modtime;
int err;
err = cow_seek_file(fd, 0);
@ -276,7 +277,7 @@ int file_reader(__u64 offset, char *buf, int len, void *arg)
int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
__u32 *version_out, char **backing_file_out,
time_t *mtime_out, unsigned long long *size_out,
long long *mtime_out, unsigned long long *size_out,
int *sectorsize_out, __u32 *align_out,
int *bitmap_offset_out)
{
@ -363,7 +364,7 @@ int read_cow_header(int (*reader)(__u64, char *, int, void *), void *arg,
/*
* this was used until Dec2005 - 64bits are needed to represent
* 2038+. I.e. we can safely do this truncating cast.
* 2106+. I.e. we can safely do this truncating cast.
*
* Additionally, we must use be32toh() instead of be64toh(), since
* the program used to use the former (tested - I got mtime

10
arch/um/drivers/ubd_kern.c
View File

@ -561,7 +561,7 @@ static inline int ubd_file_size(struct ubd *ubd_dev, __u64 *size_out)
__u32 version;
__u32 align;
char *backing_file;
time_t mtime;
time64_t mtime;
unsigned long long size;
int sector_size;
int bitmap_offset;
@ -600,9 +600,9 @@ static int read_cow_bitmap(int fd, void *buf, int offset, int len)
return 0;
}
static int backing_file_mismatch(char *file, __u64 size, time_t mtime)
static int backing_file_mismatch(char *file, __u64 size, time64_t mtime)
{
unsigned long modtime;
time64_t modtime;
unsigned long long actual;
int err;
@ -628,7 +628,7 @@ static int backing_file_mismatch(char *file, __u64 size, time_t mtime)
return -EINVAL;
}
if (modtime != mtime) {
printk(KERN_ERR "mtime mismatch (%ld vs %ld) of COW header vs "
printk(KERN_ERR "mtime mismatch (%lld vs %lld) of COW header vs "
"backing file\n", mtime, modtime);
return -EINVAL;
}
@ -671,7 +671,7 @@ static int open_ubd_file(char *file, struct openflags *openflags, int shared,
unsigned long *bitmap_len_out, int *data_offset_out,
int *create_cow_out)
{
time_t mtime;
time64_t mtime;
unsigned long long size;
__u32 version, align;
char *backing_file;

2
arch/um/include/shared/os.h
View File

@ -150,7 +150,7 @@ extern int os_sync_file(int fd);
extern int os_file_size(const char *file, unsigned long long *size_out);
extern int os_pread_file(int fd, void *buf, int len, unsigned long long offset);
extern int os_pwrite_file(int fd, const void *buf, int count, unsigned long long offset);
extern int os_file_modtime(const char *file, unsigned long *modtime);
extern int os_file_modtime(const char *file, long long *modtime);
extern int os_pipe(int *fd, int stream, int close_on_exec);
extern int os_set_fd_async(int fd);
extern int os_clear_fd_async(int fd);

2
arch/um/os-Linux/file.c
View File

@ -341,7 +341,7 @@ int os_file_size(const char *file, unsigned long long *size_out)
return 0;
}
int os_file_modtime(const char *file, unsigned long *modtime)
int os_file_modtime(const char *file, long long *modtime)
{
struct uml_stat buf;
int err;

4
arch/xtensa/platforms/iss/include/platform/simcall.h
View File

@ -113,9 +113,9 @@ static inline int simc_write(int fd, const void *buf, size_t count)
static inline int simc_poll(int fd)
{
struct timeval tv = { .tv_sec = 0, .tv_usec = 0 };
long timeval[2] = { 0, 0 };
return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&tv);
return __simc(SYS_select_one, fd, XTISS_SELECT_ONE_READ, (int)&timeval);
}
static inline int simc_lseek(int fd, uint32_t off, int whence)

11
drivers/gpu/drm/etnaviv/etnaviv_drv.c
View File

@ -282,11 +282,6 @@ static int etnaviv_ioctl_gem_new(struct drm_device *dev, void *data,
args->flags, &args->handle);
}
#define TS(t) ((struct timespec){ \
.tv_sec = (t).tv_sec, \
.tv_nsec = (t).tv_nsec \
})
static int etnaviv_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
struct drm_file *file)
{
@ -301,7 +296,7 @@ static int etnaviv_ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
if (!obj)
return -ENOENT;
ret = etnaviv_gem_cpu_prep(obj, args->op, &TS(args->timeout));
ret = etnaviv_gem_cpu_prep(obj, args->op, &args->timeout);
drm_gem_object_put_unlocked(obj);
@ -354,7 +349,7 @@ static int etnaviv_ioctl_wait_fence(struct drm_device *dev, void *data,
{
struct drm_etnaviv_wait_fence *args = data;
struct etnaviv_drm_private *priv = dev->dev_private;
struct timespec *timeout = &TS(args->timeout);
struct drm_etnaviv_timespec *timeout = &args->timeout;
struct etnaviv_gpu *gpu;
if (args->flags & ~(ETNA_WAIT_NONBLOCK))
@ -403,7 +398,7 @@ static int etnaviv_ioctl_gem_wait(struct drm_device *dev, void *data,
{
struct etnaviv_drm_private *priv = dev->dev_private;
struct drm_etnaviv_gem_wait *args = data;
struct timespec *timeout = &TS(args->timeout);
struct drm_etnaviv_timespec *timeout = &args->timeout;
struct drm_gem_object *obj;
struct etnaviv_gpu *gpu;
int ret;

11
drivers/gpu/drm/etnaviv/etnaviv_drv.h
View File

@ -61,7 +61,7 @@ int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
void etnaviv_gem_prime_unpin(struct drm_gem_object *obj);
void *etnaviv_gem_vmap(struct drm_gem_object *obj);
int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
struct timespec *timeout);
struct drm_etnaviv_timespec *timeout);
int etnaviv_gem_cpu_fini(struct drm_gem_object *obj);
void etnaviv_gem_free_object(struct drm_gem_object *obj);
int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
@ -107,11 +107,12 @@ static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base)
* between the specified timeout and the current CLOCK_MONOTONIC time.
*/
static inline unsigned long etnaviv_timeout_to_jiffies(
const struct timespec *timeout)
const struct drm_etnaviv_timespec *timeout)
{
struct timespec64 ts, to;
to = timespec_to_timespec64(*timeout);
struct timespec64 ts, to = {
.tv_sec = timeout->tv_sec,
.tv_nsec = timeout->tv_nsec,
};
ktime_get_ts64(&ts);

4
drivers/gpu/drm/etnaviv/etnaviv_gem.c
View File

@ -373,7 +373,7 @@ static inline enum dma_data_direction etnaviv_op_to_dma_dir(u32 op)
}
int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
struct timespec *timeout)
struct drm_etnaviv_timespec *timeout)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
struct drm_device *dev = obj->dev;
@ -431,7 +431,7 @@ int etnaviv_gem_cpu_fini(struct drm_gem_object *obj)
}
int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
struct timespec *timeout)
struct drm_etnaviv_timespec *timeout)
{
struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);

2
drivers/gpu/drm/etnaviv/etnaviv_gem.h
View File

@ -112,7 +112,7 @@ struct etnaviv_gem_submit {
void etnaviv_submit_put(struct etnaviv_gem_submit * submit);
int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
struct timespec *timeout);
struct drm_etnaviv_timespec *timeout);
int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
const struct etnaviv_gem_ops *ops, struct etnaviv_gem_object **res);
void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);

5
drivers/gpu/drm/etnaviv/etnaviv_gpu.c
View File

@ -1132,7 +1132,7 @@ static void event_free(struct etnaviv_gpu *gpu, unsigned int event)
* Cmdstream submission/retirement:
*/
int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
u32 id, struct timespec *timeout)
u32 id, struct drm_etnaviv_timespec *timeout)
{
struct dma_fence *fence;
int ret;
@ -1179,7 +1179,8 @@ int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
* that lock in this function while waiting.
*/
int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
struct etnaviv_gem_object *etnaviv_obj, struct timespec *timeout)
struct etnaviv_gem_object *etnaviv_obj,
struct drm_etnaviv_timespec *timeout)
{
unsigned long remaining;
long ret;

5
drivers/gpu/drm/etnaviv/etnaviv_gpu.h
View File

@ -169,9 +169,10 @@ int etnaviv_gpu_debugfs(struct etnaviv_gpu *gpu, struct seq_file *m);
void etnaviv_gpu_recover_hang(struct etnaviv_gpu *gpu);
void etnaviv_gpu_retire(struct etnaviv_gpu *gpu);
int etnaviv_gpu_wait_fence_interruptible(struct etnaviv_gpu *gpu,
u32 fence, struct timespec *timeout);
u32 fence, struct drm_etnaviv_timespec *timeout);
int etnaviv_gpu_wait_obj_inactive(struct etnaviv_gpu *gpu,
struct etnaviv_gem_object *etnaviv_obj, struct timespec *timeout);
struct etnaviv_gem_object *etnaviv_obj,
struct drm_etnaviv_timespec *timeout);
struct dma_fence *etnaviv_gpu_submit(struct etnaviv_gem_submit *submit);
int etnaviv_gpu_pm_get_sync(struct etnaviv_gpu *gpu);
void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu);

3
drivers/gpu/drm/msm/msm_drv.h
View File

@ -454,8 +454,7 @@ static inline unsigned long timeout_to_jiffies(const ktime_t *timeout)
remaining_jiffies = 0;
} else {
ktime_t rem = ktime_sub(*timeout, now);
struct timespec ts = ktime_to_timespec(rem);
remaining_jiffies = timespec_to_jiffies(&ts);
remaining_jiffies = ktime_divns(rem, NSEC_PER_SEC / HZ);
}
return remaining_jiffies;

6
fs/dlm/lowcomms.c
View File

@ -1035,7 +1035,7 @@ static void sctp_connect_to_sock(struct connection *con)
int result;
int addr_len;
struct socket *sock;
struct timeval tv = { .tv_sec = 5, .tv_usec = 0 };
struct __kernel_sock_timeval tv = { .tv_sec = 5, .tv_usec = 0 };
if (con->nodeid == 0) {
log_print("attempt to connect sock 0 foiled");
@ -1087,12 +1087,12 @@ static void sctp_connect_to_sock(struct connection *con)
* since O_NONBLOCK argument in connect() function does not work here,
* then, we should restore the default value of this attribute.
*/
kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_OLD, (char *)&tv,
kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_NEW, (char *)&tv,
sizeof(tv));
result = sock->ops->connect(sock, (struct sockaddr *)&daddr, addr_len,
0);
memset(&tv, 0, sizeof(tv));
kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_OLD, (char *)&tv,
kernel_setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO_NEW, (char *)&tv,
sizeof(tv));
if (result == -EINPROGRESS)

3
fs/fat/inode.c
View File

@ -21,6 +21,7 @@
#include <linux/blkdev.h>
#include <linux/backing-dev.h>
#include <asm/unaligned.h>
#include <linux/random.h>
#include <linux/iversion.h>
#include "fat.h"
@ -521,7 +522,7 @@ int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de)
inode->i_uid = sbi->options.fs_uid;
inode->i_gid = sbi->options.fs_gid;
inode_inc_iversion(inode);
inode->i_generation = get_seconds();
inode->i_generation = prandom_u32();
if ((de->attr & ATTR_DIR) && !IS_FREE(de->name)) {
inode->i_generation &= ~1;

28
fs/hfs/hfs_fs.h
View File

@ -242,19 +242,35 @@ extern void hfs_mark_mdb_dirty(struct super_block *sb);
/*
* There are two time systems. Both are based on seconds since
* a particular time/date.
* Unix: unsigned lil-endian since 00:00 GMT, Jan. 1, 1970
* Unix: signed little-endian since 00:00 GMT, Jan. 1, 1970
* mac: unsigned big-endian since 00:00 GMT, Jan. 1, 1904
*
* HFS implementations are highly inconsistent, this one matches the
* traditional behavior of 64-bit Linux, giving the most useful
* time range between 1970 and 2106, by treating any on-disk timestamp
* under HFS_UTC_OFFSET (Jan 1 1970) as a time between 2040 and 2106.
*/
#define __hfs_u_to_mtime(sec) cpu_to_be32(sec + 2082844800U - sys_tz.tz_minuteswest * 60)
#define __hfs_m_to_utime(sec) (be32_to_cpu(sec) - 2082844800U + sys_tz.tz_minuteswest * 60)
#define HFS_UTC_OFFSET 2082844800U
static inline time64_t __hfs_m_to_utime(__be32 mt)
{
time64_t ut = (u32)(be32_to_cpu(mt) - HFS_UTC_OFFSET);
return ut + sys_tz.tz_minuteswest * 60;
}
static inline __be32 __hfs_u_to_mtime(time64_t ut)
{
ut -= sys_tz.tz_minuteswest * 60;
return cpu_to_be32(lower_32_bits(ut) + HFS_UTC_OFFSET);
}
#define HFS_I(inode) (container_of(inode, struct hfs_inode_info, vfs_inode))
#define HFS_SB(sb) ((struct hfs_sb_info *)(sb)->s_fs_info)
#define hfs_m_to_utime(time) (struct timespec){ .tv_sec = __hfs_m_to_utime(time) }
#define hfs_u_to_mtime(time) __hfs_u_to_mtime((time).tv_sec)
#define hfs_mtime() __hfs_u_to_mtime(get_seconds())
#define hfs_m_to_utime(time) (struct timespec64){ .tv_sec = __hfs_m_to_utime(time) }
#define hfs_u_to_mtime(time) __hfs_u_to_mtime((time).tv_sec)
#define hfs_mtime() __hfs_u_to_mtime(ktime_get_real_seconds())
static inline const char *hfs_mdb_name(struct super_block *sb)
{

4
fs/hfs/inode.c
View File

@ -351,7 +351,7 @@ static int hfs_read_inode(struct inode *inode, void *data)
inode->i_mode &= ~hsb->s_file_umask;
inode->i_mode |= S_IFREG;
inode->i_ctime = inode->i_atime = inode->i_mtime =
timespec_to_timespec64(hfs_m_to_utime(rec->file.MdDat));
hfs_m_to_utime(rec->file.MdDat);
inode->i_op = &hfs_file_inode_operations;
inode->i_fop = &hfs_file_operations;
inode->i_mapping->a_ops = &hfs_aops;
@ -362,7 +362,7 @@ static int hfs_read_inode(struct inode *inode, void *data)
HFS_I(inode)->fs_blocks = 0;
inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask);
inode->i_ctime = inode->i_atime = inode->i_mtime =
timespec_to_timespec64(hfs_m_to_utime(rec->dir.MdDat));
hfs_m_to_utime(rec->dir.MdDat);
inode->i_op = &hfs_dir_inode_operations;
inode->i_fop = &hfs_dir_operations;
break;

28
fs/hfsplus/hfsplus_fs.h
View File

@ -533,13 +533,31 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector, void *buf,
void **data, int op, int op_flags);
int hfsplus_read_wrapper(struct super_block *sb);
/* time macros */
#define __hfsp_mt2ut(t) (be32_to_cpu(t) - 2082844800U)
#define __hfsp_ut2mt(t) (cpu_to_be32(t + 2082844800U))
/*
* time helpers: convert between 1904-base and 1970-base timestamps
*
* HFS+ implementations are highly inconsistent, this one matches the
* traditional behavior of 64-bit Linux, giving the most useful
* time range between 1970 and 2106, by treating any on-disk timestamp
* under HFSPLUS_UTC_OFFSET (Jan 1 1970) as a time between 2040 and 2106.
*/
#define HFSPLUS_UTC_OFFSET 2082844800U
static inline time64_t __hfsp_mt2ut(__be32 mt)
{
time64_t ut = (u32)(be32_to_cpu(mt) - HFSPLUS_UTC_OFFSET);
return ut;
}
static inline __be32 __hfsp_ut2mt(time64_t ut)
{
return cpu_to_be32(lower_32_bits(ut) + HFSPLUS_UTC_OFFSET);
}
/* compatibility */
#define hfsp_mt2ut(t) (struct timespec){ .tv_sec = __hfsp_mt2ut(t) }
#define hfsp_mt2ut(t) (struct timespec64){ .tv_sec = __hfsp_mt2ut(t) }
#define hfsp_ut2mt(t) __hfsp_ut2mt((t).tv_sec)
#define hfsp_now2mt() __hfsp_ut2mt(get_seconds())
#define hfsp_now2mt() __hfsp_ut2mt(ktime_get_real_seconds())
#endif

12
fs/hfsplus/inode.c
View File

@ -504,9 +504,9 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
hfsplus_get_perms(inode, &folder->permissions, 1);
set_nlink(inode, 1);
inode->i_size = 2 + be32_to_cpu(folder->valence);
inode->i_atime = timespec_to_timespec64(hfsp_mt2ut(folder->access_date));
inode->i_mtime = timespec_to_timespec64(hfsp_mt2ut(folder->content_mod_date));
inode->i_ctime = timespec_to_timespec64(hfsp_mt2ut(folder->attribute_mod_date));
inode->i_atime = hfsp_mt2ut(folder->access_date);
inode->i_mtime = hfsp_mt2ut(folder->content_mod_date);
inode->i_ctime = hfsp_mt2ut(folder->attribute_mod_date);
HFSPLUS_I(inode)->create_date = folder->create_date;
HFSPLUS_I(inode)->fs_blocks = 0;
if (folder->flags & cpu_to_be16(HFSPLUS_HAS_FOLDER_COUNT)) {
@ -542,9 +542,9 @@ int hfsplus_cat_read_inode(struct inode *inode, struct hfs_find_data *fd)
init_special_inode(inode, inode->i_mode,
be32_to_cpu(file->permissions.dev));
}
inode->i_atime = timespec_to_timespec64(hfsp_mt2ut(file->access_date));
inode->i_mtime = timespec_to_timespec64(hfsp_mt2ut(file->content_mod_date));
inode->i_ctime = timespec_to_timespec64(hfsp_mt2ut(file->attribute_mod_date));
inode->i_atime = hfsp_mt2ut(file->access_date);
inode->i_mtime = hfsp_mt2ut(file->content_mod_date);
inode->i_ctime = hfsp_mt2ut(file->attribute_mod_date);
HFSPLUS_I(inode)->create_date = file->create_date;
} else {
pr_err("bad catalog entry used to create inode\n");

22
fs/hostfs/hostfs.h
View File

@ -37,16 +37,20 @@
* is on, and remove the appropriate bits from attr->ia_mode (attr is a
* "struct iattr *"). -BlaisorBlade
*/
struct hostfs_timespec {
long long tv_sec;
long long tv_nsec;
};
struct hostfs_iattr {
unsigned int ia_valid;
unsigned short ia_mode;
uid_t ia_uid;
gid_t ia_gid;
loff_t ia_size;
struct timespec ia_atime;
struct timespec ia_mtime;
struct timespec ia_ctime;
unsigned int ia_valid;
unsigned short ia_mode;
uid_t ia_uid;
gid_t ia_gid;
loff_t ia_size;
struct hostfs_timespec ia_atime;
struct hostfs_timespec ia_mtime;
struct hostfs_timespec ia_ctime;
};
struct hostfs_stat {
@ -56,7 +60,7 @@ struct hostfs_stat {
unsigned int uid;
unsigned int gid;
unsigned long long size;
struct timespec atime, mtime, ctime;
struct hostfs_timespec atime, mtime, ctime;
unsigned int blksize;
unsigned long long blocks;
unsigned int maj;

15
fs/hostfs/hostfs_kern.c
View File

@ -549,9 +549,9 @@ static int read_name(struct inode *ino, char *name)
set_nlink(ino, st.nlink);
i_uid_write(ino, st.uid);
i_gid_write(ino, st.gid);
ino->i_atime = timespec_to_timespec64(st.atime);
ino->i_mtime = timespec_to_timespec64(st.mtime);
ino->i_ctime = timespec_to_timespec64(st.ctime);
ino->i_atime = (struct timespec64){ st.atime.tv_sec, st.atime.tv_nsec };
ino->i_mtime = (struct timespec64){ st.mtime.tv_sec, st.mtime.tv_nsec };
ino->i_ctime = (struct timespec64){ st.ctime.tv_sec, st.ctime.tv_nsec };
ino->i_size = st.size;
ino->i_blocks = st.blocks;
return 0;
@ -820,15 +820,18 @@ static int hostfs_setattr(struct dentry *dentry, struct iattr *attr)
}
if (attr->ia_valid & ATTR_ATIME) {
attrs.ia_valid |= HOSTFS_ATTR_ATIME;
attrs.ia_atime = timespec64_to_timespec(attr->ia_atime);
attrs.ia_atime = (struct hostfs_timespec)
{ attr->ia_atime.tv_sec, attr->ia_atime.tv_nsec };
}
if (attr->ia_valid & ATTR_MTIME) {
attrs.ia_valid |= HOSTFS_ATTR_MTIME;
attrs.ia_mtime = timespec64_to_timespec(attr->ia_mtime);
attrs.ia_mtime = (struct hostfs_timespec)
{ attr->ia_mtime.tv_sec, attr->ia_mtime.tv_nsec };
}
if (attr->ia_valid & ATTR_CTIME) {
attrs.ia_valid |= HOSTFS_ATTR_CTIME;
attrs.ia_ctime = timespec64_to_timespec(attr->ia_ctime);
attrs.ia_ctime = (struct hostfs_timespec)
{ attr->ia_ctime.tv_sec, attr->ia_ctime.tv_nsec };
}
if (attr->ia_valid & ATTR_ATIME_SET) {
attrs.ia_valid |= HOSTFS_ATTR_ATIME_SET;

6
fs/nfs/fscache-index.c
View File

@ -84,8 +84,10 @@ enum fscache_checkaux nfs_fscache_inode_check_aux(void *cookie_netfs_data,
return FSCACHE_CHECKAUX_OBSOLETE;
memset(&auxdata, 0, sizeof(auxdata));
auxdata.mtime = timespec64_to_timespec(nfsi->vfs_inode.i_mtime);
auxdata.ctime = timespec64_to_timespec(nfsi->vfs_inode.i_ctime);
auxdata.mtime_sec = nfsi->vfs_inode.i_mtime.tv_sec;
auxdata.mtime_nsec = nfsi->vfs_inode.i_mtime.tv_nsec;
auxdata.ctime_sec = nfsi->vfs_inode.i_ctime.tv_sec;
auxdata.ctime_nsec = nfsi->vfs_inode.i_ctime.tv_nsec;
if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4)
auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode);

18
fs/nfs/fscache.c
View File

@ -238,8 +238,10 @@ void nfs_fscache_init_inode(struct inode *inode)
return;
memset(&auxdata, 0, sizeof(auxdata));
auxdata.mtime = timespec64_to_timespec(nfsi->vfs_inode.i_mtime);
auxdata.ctime = timespec64_to_timespec(nfsi->vfs_inode.i_ctime);
auxdata.mtime_sec = nfsi->vfs_inode.i_mtime.tv_sec;
auxdata.mtime_nsec = nfsi->vfs_inode.i_mtime.tv_nsec;
auxdata.ctime_sec = nfsi->vfs_inode.i_ctime.tv_sec;
auxdata.ctime_nsec = nfsi->vfs_inode.i_ctime.tv_nsec;
if (NFS_SERVER(&nfsi->vfs_inode)->nfs_client->rpc_ops->version == 4)
auxdata.change_attr = inode_peek_iversion_raw(&nfsi->vfs_inode);
@ -263,8 +265,10 @@ void nfs_fscache_clear_inode(struct inode *inode)
dfprintk(FSCACHE, "NFS: clear cookie (0x%p/0x%p)\n", nfsi, cookie);
memset(&auxdata, 0, sizeof(auxdata));
auxdata.mtime = timespec64_to_timespec(nfsi->vfs_inode.i_mtime);
auxdata.ctime = timespec64_to_timespec(nfsi->vfs_inode.i_ctime);
auxdata.mtime_sec = nfsi->vfs_inode.i_mtime.tv_sec;
auxdata.mtime_nsec = nfsi->vfs_inode.i_mtime.tv_nsec;
auxdata.ctime_sec = nfsi->vfs_inode.i_ctime.tv_sec;
auxdata.ctime_nsec = nfsi->vfs_inode.i_ctime.tv_nsec;
fscache_relinquish_cookie(cookie, &auxdata, false);
nfsi->fscache = NULL;
}
@ -305,8 +309,10 @@ void nfs_fscache_open_file(struct inode *inode, struct file *filp)
return;
memset(&auxdata, 0, sizeof(auxdata));
auxdata.mtime = timespec64_to_timespec(nfsi->vfs_inode.i_mtime);
auxdata.ctime = timespec64_to_timespec(nfsi->vfs_inode.i_ctime);
auxdata.mtime_sec = nfsi->vfs_inode.i_mtime.tv_sec;
auxdata.mtime_nsec = nfsi->vfs_inode.i_mtime.tv_nsec;
auxdata.ctime_sec = nfsi->vfs_inode.i_ctime.tv_sec;
auxdata.ctime_nsec = nfsi->vfs_inode.i_ctime.tv_nsec;
if (inode_is_open_for_write(inode)) {
dfprintk(FSCACHE, "NFS: nfsi 0x%p disabling cache\n", nfsi);

8
fs/nfs/fscache.h
View File

@ -62,9 +62,11 @@ struct nfs_fscache_key {
* cache object.
*/
struct nfs_fscache_inode_auxdata {
struct timespec mtime;
struct timespec ctime;
u64 change_attr;
s64 mtime_sec;
s64 mtime_nsec;
s64 ctime_sec;
s64 ctime_nsec;
u64 change_attr;
};
/*

10
fs/nfs/nfs4xdr.c
View File

@ -4097,7 +4097,7 @@ static int decode_attr_time_access(struct xdr_stream *xdr, uint32_t *bitmap, str
status = NFS_ATTR_FATTR_ATIME;
bitmap[1] &= ~FATTR4_WORD1_TIME_ACCESS;
}
dprintk("%s: atime=%ld\n", __func__, (long)time->tv_sec);
dprintk("%s: atime=%lld\n", __func__, time->tv_sec);
return status;
}
@ -4115,7 +4115,7 @@ static int decode_attr_time_metadata(struct xdr_stream *xdr, uint32_t *bitmap, s
status = NFS_ATTR_FATTR_CTIME;
bitmap[1] &= ~FATTR4_WORD1_TIME_METADATA;
}
dprintk("%s: ctime=%ld\n", __func__, (long)time->tv_sec);
dprintk("%s: ctime=%lld\n", __func__, time->tv_sec);
return status;
}
@ -4132,8 +4132,8 @@ static int decode_attr_time_delta(struct xdr_stream *xdr, uint32_t *bitmap,
status = decode_attr_time(xdr, time);
bitmap[1] &= ~FATTR4_WORD1_TIME_DELTA;
}
dprintk("%s: time_delta=%ld %ld\n", __func__, (long)time->tv_sec,
(long)time->tv_nsec);
dprintk("%s: time_delta=%lld %ld\n", __func__, time->tv_sec,
time->tv_nsec);
return status;
}
@ -4197,7 +4197,7 @@ static int decode_attr_time_modify(struct xdr_stream *xdr, uint32_t *bitmap, str
status = NFS_ATTR_FATTR_MTIME;
bitmap[1] &= ~FATTR4_WORD1_TIME_MODIFY;
}
dprintk("%s: mtime=%ld\n", __func__, (long)time->tv_sec);
dprintk("%s: mtime=%lld\n", __func__, time->tv_sec);
return status;
}

20
include/linux/jiffies.h
View File

@ -422,26 +422,6 @@ static __always_inline unsigned long usecs_to_jiffies(const unsigned int u)
extern unsigned long timespec64_to_jiffies(const struct timespec64 *value);
extern void jiffies_to_timespec64(const unsigned long jiffies,
struct timespec64 *value);
static inline unsigned long timespec_to_jiffies(const struct timespec *value)
{
struct timespec64 ts = timespec_to_timespec64(*value);
return timespec64_to_jiffies(&ts);
}
static inline void jiffies_to_timespec(const unsigned long jiffies,
struct timespec *value)
{
struct timespec64 ts;
jiffies_to_timespec64(jiffies, &ts);
*value = timespec64_to_timespec(ts);
}
extern unsigned long timeval_to_jiffies(const struct timeval *value);
extern void jiffies_to_timeval(const unsigned long jiffies,
struct timeval *value);
extern clock_t jiffies_to_clock_t(unsigned long x);
static inline clock_t jiffies_delta_to_clock_t(long delta)
{

42
include/linux/sunrpc/cache.h
View File

@ -45,8 +45,8 @@
*/
struct cache_head {
struct hlist_node cache_list;
time_t expiry_time; /* After time time, don't use the data */
time_t last_refresh; /* If CACHE_PENDING, this is when upcall was
time64_t expiry_time; /* After time time, don't use the data */
time64_t last_refresh; /* If CACHE_PENDING, this is when upcall was
* sent, else this is when update was
* received, though it is alway set to
* be *after* ->flush_time.
@ -95,22 +95,22 @@ struct cache_detail {
/* fields below this comment are for internal use
* and should not be touched by cache owners
*/
time_t flush_time; /* flush all cache items with
time64_t flush_time; /* flush all cache items with
* last_refresh at or earlier
* than this. last_refresh
* is never set at or earlier
* than this.
*/
struct list_head others;
time_t nextcheck;
time64_t nextcheck;
int entries;
/* fields for communication over channel */
struct list_head queue;
atomic_t writers; /* how many time is /channel open */
time_t last_close; /* if no writers, when did last close */
time_t last_warn; /* when we last warned about no writers */
time64_t last_close; /* if no writers, when did last close */
time64_t last_warn; /* when we last warned about no writers */
union {
struct proc_dir_entry *procfs;
@ -147,18 +147,22 @@ struct cache_deferred_req {
* timestamps kept in the cache are expressed in seconds
* since boot. This is the best for measuring differences in
* real time.
* This reimplemnts ktime_get_boottime_seconds() in a slightly
* faster but less accurate way. When we end up converting
* back to wallclock (CLOCK_REALTIME), that error often
* cancels out during the reverse operation.
*/
static inline time_t seconds_since_boot(void)
static inline time64_t seconds_since_boot(void)
{
struct timespec boot;
getboottime(&boot);
return get_seconds() - boot.tv_sec;
struct timespec64 boot;
getboottime64(&boot);
return ktime_get_real_seconds() - boot.tv_sec;
}
static inline time_t convert_to_wallclock(time_t sinceboot)
static inline time64_t convert_to_wallclock(time64_t sinceboot)
{
struct timespec boot;
getboottime(&boot);
struct timespec64 boot;
getboottime64(&boot);
return boot.tv_sec + sinceboot;
}
@ -273,7 +277,7 @@ static inline int get_uint(char **bpp, unsigned int *anint)
return 0;
}
static inline int get_time(char **bpp, time_t *time)
static inline int get_time(char **bpp, time64_t *time)
{
char buf[50];
long long ll;
@ -287,20 +291,20 @@ static inline int get_time(char **bpp, time_t *time)
if (kstrtoll(buf, 0, &ll))
return -EINVAL;
*time = (time_t)ll;
*time = ll;
return 0;
}
static inline time_t get_expiry(char **bpp)
static inline time64_t get_expiry(char **bpp)
{
time_t rv;
struct timespec boot;
time64_t rv;
struct timespec64 boot;
if (get_time(bpp, &rv))
return 0;
if (rv < 0)
return 0;
getboottime(&boot);
getboottime64(&boot);
return rv - boot.tv_sec;
}

4
include/linux/sunrpc/gss_api.h
View File

@ -48,7 +48,7 @@ int gss_import_sec_context(
size_t bufsize,
struct gss_api_mech *mech,
struct gss_ctx **ctx_id,
time_t *endtime,
time64_t *endtime,
gfp_t gfp_mask);
u32 gss_get_mic(
struct gss_ctx *ctx_id,
@ -108,7 +108,7 @@ struct gss_api_ops {
const void *input_token,
size_t bufsize,
struct gss_ctx *ctx_id,
time_t *endtime,
time64_t *endtime,
gfp_t gfp_mask);
u32 (*gss_get_mic)(
struct gss_ctx *ctx_id,

2
include/linux/sunrpc/gss_krb5.h
View File

@ -106,9 +106,9 @@ struct krb5_ctx {
struct crypto_sync_skcipher *initiator_enc_aux;
u8 Ksess[GSS_KRB5_MAX_KEYLEN]; /* session key */
u8 cksum[GSS_KRB5_MAX_KEYLEN];
s32 endtime;
atomic_t seq_send;
atomic64_t seq_send64;
time64_t endtime;
struct xdr_netobj mech_used;
u8 initiator_sign[GSS_KRB5_MAX_KEYLEN];
u8 acceptor_sign[GSS_KRB5_MAX_KEYLEN];

9
include/linux/syscalls.h
View File

@ -16,8 +16,7 @@ struct inode;
struct iocb;
struct io_event;
struct iovec;
struct itimerspec;
struct itimerval;
struct __kernel_old_itimerval;
struct kexec_segment;
struct linux_dirent;
struct linux_dirent64;
@ -594,10 +593,10 @@ asmlinkage long sys_nanosleep_time32(struct old_timespec32 __user *rqtp,
struct old_timespec32 __user *rmtp);
/* kernel/itimer.c */
asmlinkage long sys_getitimer(int which, struct itimerval __user *value);
asmlinkage long sys_getitimer(int which, struct __kernel_old_itimerval __user *value);
asmlinkage long sys_setitimer(int which,
struct itimerval __user *value,
struct itimerval __user *ovalue);
struct __kernel_old_itimerval __user *value,
struct __kernel_old_itimerval __user *ovalue);
/* kernel/kexec.c */
asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments,

2
include/uapi/linux/acct.h
View File

@ -49,6 +49,7 @@ struct acct
__u16 ac_uid16; /* LSB of Real User ID */
__u16 ac_gid16; /* LSB of Real Group ID */
__u16 ac_tty; /* Control Terminal */
/* __u32 range means times from 1970 to 2106 */
__u32 ac_btime; /* Process Creation Time */
comp_t ac_utime; /* User Time */
comp_t ac_stime; /* System Time */
@ -81,6 +82,7 @@ struct acct_v3
__u32 ac_gid; /* Real Group ID */
__u32 ac_pid; /* Process ID */
__u32 ac_ppid; /* Parent Process ID */
/* __u32 range means times from 1970 to 2106 */
__u32 ac_btime; /* Process Creation Time */
#ifdef __KERNEL__
__u32 ac_etime; /* Elapsed Time */

6
include/uapi/linux/taskstats.h
View File

@ -34,7 +34,7 @@
*/
#define TASKSTATS_VERSION 9
#define TASKSTATS_VERSION 10
#define TS_COMM_LEN 32 /* should be >= TASK_COMM_LEN
* in linux/sched.h */
@ -112,6 +112,7 @@ struct taskstats {
__u32 ac_gid; /* Group ID */
__u32 ac_pid; /* Process ID */
__u32 ac_ppid; /* Parent process ID */
/* __u32 range means times from 1970 to 2106 */
__u32 ac_btime; /* Begin time [sec since 1970] */
__u64 ac_etime __attribute__((aligned(8)));
/* Elapsed time [usec] */
@ -168,6 +169,9 @@ struct taskstats {
/* Delay waiting for thrashing page */
__u64 thrashing_count;
__u64 thrashing_delay_total;
/* v10: 64-bit btime to avoid overflow */
__u64 ac_btime64; /* 64-bit begin time */
};

5
include/uapi/linux/time_types.h
View File

@ -33,6 +33,11 @@ struct __kernel_old_timespec {
long tv_nsec; /* nanoseconds */
};
struct __kernel_old_itimerval {
struct __kernel_old_timeval it_interval;/* timer interval */
struct __kernel_old_timeval it_value; /* current value */
};
struct __kernel_sock_timeval {
__s64 tv_sec;
__s64 tv_usec;

2
include/uapi/linux/timex.h
View File

@ -57,6 +57,7 @@
#define NTP_API 4 /* NTP API version */
#ifndef __KERNEL__
/*
* syscall interface - used (mainly by NTP daemon)
* to discipline kernel clock oscillator
@ -91,6 +92,7 @@ struct timex {
int :32; int :32; int :32; int :32;
int :32; int :32; int :32;
};
#endif
struct __kernel_timex_timeval {
__kernel_time64_t tv_sec;

4
kernel/acct.c
View File

@ -416,6 +416,7 @@ static void fill_ac(acct_t *ac)
{
struct pacct_struct *pacct = &current->signal->pacct;
u64 elapsed, run_time;
time64_t btime;
struct tty_struct *tty;
/*
@ -448,7 +449,8 @@ static void fill_ac(acct_t *ac)
}
#endif
do_div(elapsed, AHZ);
ac->ac_btime = get_seconds() - elapsed;
btime = ktime_get_real_seconds() - elapsed;
ac->ac_btime = clamp_t(time64_t, btime, 0, U32_MAX);
#if ACCT_VERSION==2
ac->ac_ahz = AHZ;
#endif

18
kernel/time/itimer.c
View File

@ -97,20 +97,20 @@ static int do_getitimer(int which, struct itimerspec64 *value)
return 0;
}
static int put_itimerval(struct itimerval __user *o,
static int put_itimerval(struct __kernel_old_itimerval __user *o,
const struct itimerspec64 *i)
{
struct itimerval v;
struct __kernel_old_itimerval v;
v.it_interval.tv_sec = i->it_interval.tv_sec;
v.it_interval.tv_usec = i->it_interval.tv_nsec / NSEC_PER_USEC;
v.it_value.tv_sec = i->it_value.tv_sec;
v.it_value.tv_usec = i->it_value.tv_nsec / NSEC_PER_USEC;
return copy_to_user(o, &v, sizeof(struct itimerval)) ? -EFAULT : 0;
return copy_to_user(o, &v, sizeof(struct __kernel_old_itimerval)) ? -EFAULT : 0;
}
SYSCALL_DEFINE2(getitimer, int, which, struct itimerval __user *, value)
SYSCALL_DEFINE2(getitimer, int, which, struct __kernel_old_itimerval __user *, value)
{
struct itimerspec64 get_buffer;
int error = do_getitimer(which, &get_buffer);
@ -314,11 +314,11 @@ SYSCALL_DEFINE1(alarm, unsigned int, seconds)
#endif
static int get_itimerval(struct itimerspec64 *o, const struct itimerval __user *i)
static int get_itimerval(struct itimerspec64 *o, const struct __kernel_old_itimerval __user *i)
{
struct itimerval v;
struct __kernel_old_itimerval v;
if (copy_from_user(&v, i, sizeof(struct itimerval)))
if (copy_from_user(&v, i, sizeof(struct __kernel_old_itimerval)))
return -EFAULT;
/* Validate the timevals in value. */
@ -333,8 +333,8 @@ static int get_itimerval(struct itimerspec64 *o, const struct itimerval __user *
return 0;
}
SYSCALL_DEFINE3(setitimer, int, which, struct itimerval __user *, value,
struct itimerval __user *, ovalue)
SYSCALL_DEFINE3(setitimer, int, which, struct __kernel_old_itimerval __user *, value,
struct __kernel_old_itimerval __user *, ovalue)
{
struct itimerspec64 set_buffer, get_buffer;
int error;

58
kernel/time/time.c
View File

@ -626,10 +626,12 @@ EXPORT_SYMBOL(__usecs_to_jiffies);
* The >> (NSEC_JIFFIE_SC - SEC_JIFFIE_SC) converts the scaled nsec
* value to a scaled second value.
*/
static unsigned long
__timespec64_to_jiffies(u64 sec, long nsec)
unsigned long
timespec64_to_jiffies(const struct timespec64 *value)
{
nsec = nsec + TICK_NSEC - 1;
u64 sec = value->tv_sec;
long nsec = value->tv_nsec + TICK_NSEC - 1;
if (sec >= MAX_SEC_IN_JIFFIES){
sec = MAX_SEC_IN_JIFFIES;
@ -640,18 +642,6 @@ __timespec64_to_jiffies(u64 sec, long nsec)
(NSEC_JIFFIE_SC - SEC_JIFFIE_SC))) >> SEC_JIFFIE_SC;
}
static unsigned long
__timespec_to_jiffies(unsigned long sec, long nsec)
{
return __timespec64_to_jiffies((u64)sec, nsec);
}
unsigned long
timespec64_to_jiffies(const struct timespec64 *value)
{
return __timespec64_to_jiffies(value->tv_sec, value->tv_nsec);
}
EXPORT_SYMBOL(timespec64_to_jiffies);
void
@ -668,44 +658,6 @@ jiffies_to_timespec64(const unsigned long jiffies, struct timespec64 *value)
}
EXPORT_SYMBOL(jiffies_to_timespec64);
/*
* We could use a similar algorithm to timespec_to_jiffies (with a
* different multiplier for usec instead of nsec). But this has a
* problem with rounding: we can't exactly add TICK_NSEC - 1 to the
* usec value, since it's not necessarily integral.
*
* We could instead round in the intermediate scaled representation
* (i.e. in units of 1/2^(large scale) jiffies) but that's also
* perilous: the scaling introduces a small positive error, which
* combined with a division-rounding-upward (i.e. adding 2^(scale) - 1
* units to the intermediate before shifting) leads to accidental
* overflow and overestimates.
*
* At the cost of one additional multiplication by a constant, just
* use the timespec implementation.
*/
unsigned long
timeval_to_jiffies(const struct timeval *value)
{
return __timespec_to_jiffies(value->tv_sec,
value->tv_usec * NSEC_PER_USEC);
}
EXPORT_SYMBOL(timeval_to_jiffies);
void jiffies_to_timeval(const unsigned long jiffies, struct timeval *value)
{
/*
* Convert jiffies to nanoseconds and separate with
* one divide.
*/
u32 rem;
value->tv_sec = div_u64_rem((u64)jiffies * TICK_NSEC,
NSEC_PER_SEC, &rem);
value->tv_usec = rem / NSEC_PER_USEC;
}
EXPORT_SYMBOL(jiffies_to_timeval);
/*
* Convert jiffies/jiffies_64 to clock_t and back.
*/

9
kernel/tsacct.c
View File

@ -24,6 +24,7 @@ void bacct_add_tsk(struct user_namespace *user_ns,
const struct cred *tcred;
u64 utime, stime, utimescaled, stimescaled;
u64 delta;
time64_t btime;
BUILD_BUG_ON(TS_COMM_LEN < TASK_COMM_LEN);
@ -32,9 +33,11 @@ void bacct_add_tsk(struct user_namespace *user_ns,
/* Convert to micro seconds */
do_div(delta, NSEC_PER_USEC);
stats->ac_etime = delta;
/* Convert to seconds for btime */
do_div(delta, USEC_PER_SEC);
stats->ac_btime = get_seconds() - delta;
/* Convert to seconds for btime (note y2106 limit) */
btime = ktime_get_real_seconds() - div_u64(delta, USEC_PER_SEC);
stats->ac_btime = clamp_t(time64_t, btime, 0, U32_MAX);
stats->ac_btime64 = btime;
if (thread_group_leader(tsk)) {
stats->ac_exitcode = tsk->exit_code;
if (tsk->flags & PF_FORKNOEXEC)

27
net/packet/af_packet.c
View File

@ -408,17 +408,17 @@ static int __packet_get_status(const struct packet_sock *po, void *frame)
}
}
static __u32 tpacket_get_timestamp(struct sk_buff *skb, struct timespec *ts,
static __u32 tpacket_get_timestamp(struct sk_buff *skb, struct timespec64 *ts,
unsigned int flags)
{
struct skb_shared_hwtstamps *shhwtstamps = skb_hwtstamps(skb);
if (shhwtstamps &&
(flags & SOF_TIMESTAMPING_RAW_HARDWARE) &&
ktime_to_timespec_cond(shhwtstamps->hwtstamp, ts))
ktime_to_timespec64_cond(shhwtstamps->hwtstamp, ts))
return TP_STATUS_TS_RAW_HARDWARE;
if (ktime_to_timespec_cond(skb->tstamp, ts))
if (ktime_to_timespec64_cond(skb->tstamp, ts))
return TP_STATUS_TS_SOFTWARE;
return 0;
@ -428,13 +428,20 @@ static __u32 __packet_set_timestamp(struct packet_sock *po, void *frame,
struct sk_buff *skb)
{
union tpacket_uhdr h;
struct timespec ts;
struct timespec64 ts;
__u32 ts_status;
if (!(ts_status = tpacket_get_timestamp(skb, &ts, po->tp_tstamp)))
return 0;
h.raw = frame;
/*
* versions 1 through 3 overflow the timestamps in y2106, since they
* all store the seconds in a 32-bit unsigned integer.
* If we create a version 4, that should have a 64-bit timestamp,
* either 64-bit seconds + 32-bit nanoseconds, or just 64-bit
* nanoseconds.
*/
switch (po->tp_version) {
case TPACKET_V1:
h.h1->tp_sec = ts.tv_sec;
@ -769,8 +776,8 @@ static void prb_close_block(struct tpacket_kbdq_core *pkc1,
* It shouldn't really happen as we don't close empty
* blocks. See prb_retire_rx_blk_timer_expired().
*/
struct timespec ts;
getnstimeofday(&ts);
struct timespec64 ts;
ktime_get_real_ts64(&ts);
h1->ts_last_pkt.ts_sec = ts.tv_sec;
h1->ts_last_pkt.ts_nsec = ts.tv_nsec;
}
@ -800,7 +807,7 @@ static void prb_thaw_queue(struct tpacket_kbdq_core *pkc)
static void prb_open_block(struct tpacket_kbdq_core *pkc1,
struct tpacket_block_desc *pbd1)
{
struct timespec ts;
struct timespec64 ts;
struct tpacket_hdr_v1 *h1 = &pbd1->hdr.bh1;
smp_rmb();
@ -813,7 +820,7 @@ static void prb_open_block(struct tpacket_kbdq_core *pkc1,
BLOCK_NUM_PKTS(pbd1) = 0;
BLOCK_LEN(pbd1) = BLK_PLUS_PRIV(pkc1->blk_sizeof_priv);
getnstimeofday(&ts);
ktime_get_real_ts64(&ts);
h1->ts_first_pkt.ts_sec = ts.tv_sec;
h1->ts_first_pkt.ts_nsec = ts.tv_nsec;
@ -2163,7 +2170,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
unsigned long status = TP_STATUS_USER;
unsigned short macoff, netoff, hdrlen;
struct sk_buff *copy_skb = NULL;
struct timespec ts;
struct timespec64 ts;
__u32 ts_status;
bool is_drop_n_account = false;
bool do_vnet = false;
@ -2295,7 +2302,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev,
skb_copy_bits(skb, 0, h.raw + macoff, snaplen);
if (!(ts_status = tpacket_get_timestamp(skb, &ts, po->tp_tstamp)))
getnstimeofday(&ts);
ktime_get_real_ts64(&ts);
status |= ts_status;

12
net/sunrpc/auth_gss/gss_krb5_mech.c
View File

@ -253,6 +253,7 @@ gss_import_v1_context(const void *p, const void *end, struct krb5_ctx *ctx)
{
u32 seq_send;
int tmp;
u32 time32;
p = simple_get_bytes(p, end, &ctx->initiate, sizeof(ctx->initiate));
if (IS_ERR(p))
@ -290,9 +291,11 @@ gss_import_v1_context(const void *p, const void *end, struct krb5_ctx *ctx)
p = ERR_PTR(-ENOSYS);
goto out_err;
}
p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));
p = simple_get_bytes(p, end, &time32, sizeof(time32));
if (IS_ERR(p))
goto out_err;
/* unsigned 32-bit time overflows in year 2106 */
ctx->endtime = (time64_t)time32;
p = simple_get_bytes(p, end, &seq_send, sizeof(seq_send));
if (IS_ERR(p))
goto out_err;
@ -587,15 +590,18 @@ gss_import_v2_context(const void *p, const void *end, struct krb5_ctx *ctx,
{
u64 seq_send64;
int keylen;
u32 time32;
p = simple_get_bytes(p, end, &ctx->flags, sizeof(ctx->flags));
if (IS_ERR(p))
goto out_err;
ctx->initiate = ctx->flags & KRB5_CTX_FLAG_INITIATOR;
p = simple_get_bytes(p, end, &ctx->endtime, sizeof(ctx->endtime));
p = simple_get_bytes(p, end, &time32, sizeof(time32));
if (IS_ERR(p))
goto out_err;
/* unsigned 32-bit time overflows in year 2106 */
ctx->endtime = (time64_t)time32;
p = simple_get_bytes(p, end, &seq_send64, sizeof(seq_send64));
if (IS_ERR(p))
goto out_err;
@ -659,7 +665,7 @@ out_err:
static int
gss_import_sec_context_kerberos(const void *p, size_t len,
struct gss_ctx *ctx_id,
time_t *endtime,
time64_t *endtime,
gfp_t gfp_mask)
{
const void *end = (const void *)((const char *)p + len);

8
net/sunrpc/auth_gss/gss_krb5_seal.c
View File

@ -131,14 +131,14 @@ gss_get_mic_v1(struct krb5_ctx *ctx, struct xdr_buf *text,
struct xdr_netobj md5cksum = {.len = sizeof(cksumdata),
.data = cksumdata};
void *ptr;
s32 now;
time64_t now;
u32 seq_send;
u8 *cksumkey;
dprintk("RPC: %s\n", __func__);
BUG_ON(ctx == NULL);
now = get_seconds();
now = ktime_get_real_seconds();
ptr = setup_token(ctx, token);
@ -170,7 +170,7 @@ gss_get_mic_v2(struct krb5_ctx *ctx, struct xdr_buf *text,
struct xdr_netobj cksumobj = { .len = sizeof(cksumdata),
.data = cksumdata};
void *krb5_hdr;
s32 now;
time64_t now;
u8 *cksumkey;
unsigned int cksum_usage;
__be64 seq_send_be64;
@ -198,7 +198,7 @@ gss_get_mic_v2(struct krb5_ctx *ctx, struct xdr_buf *text,
memcpy(krb5_hdr + GSS_KRB5_TOK_HDR_LEN, cksumobj.data, cksumobj.len);
now = get_seconds();
now = ktime_get_real_seconds();
return (ctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE;
}

6
net/sunrpc/auth_gss/gss_krb5_unseal.c
View File

@ -124,7 +124,7 @@ gss_verify_mic_v1(struct krb5_ctx *ctx,
/* it got through unscathed. Make sure the context is unexpired */
now = get_seconds();
now = ktime_get_real_seconds();
if (now > ctx->endtime)
return GSS_S_CONTEXT_EXPIRED;
@ -149,7 +149,7 @@ gss_verify_mic_v2(struct krb5_ctx *ctx,
char cksumdata[GSS_KRB5_MAX_CKSUM_LEN];
struct xdr_netobj cksumobj = {.len = sizeof(cksumdata),
.data = cksumdata};
s32 now;
time64_t now;
u8 *ptr = read_token->data;
u8 *cksumkey;
u8 flags;
@ -194,7 +194,7 @@ gss_verify_mic_v2(struct krb5_ctx *ctx,
return GSS_S_BAD_SIG;
/* it got through unscathed. Make sure the context is unexpired */
now = get_seconds();
now = ktime_get_real_seconds();
if (now > ctx->endtime)
return GSS_S_CONTEXT_EXPIRED;

16
net/sunrpc/auth_gss/gss_krb5_wrap.c
View File

@ -163,7 +163,7 @@ gss_wrap_kerberos_v1(struct krb5_ctx *kctx, int offset,
.data = cksumdata};
int blocksize = 0, plainlen;
unsigned char *ptr, *msg_start;
s32 now;
time64_t now;
int headlen;
struct page **tmp_pages;
u32 seq_send;
@ -172,7 +172,7 @@ gss_wrap_kerberos_v1(struct krb5_ctx *kctx, int offset,
dprintk("RPC: %s\n", __func__);
now = get_seconds();
now = ktime_get_real_seconds();
blocksize = crypto_sync_skcipher_blocksize(kctx->enc);
gss_krb5_add_padding(buf, offset, blocksize);
@ -268,7 +268,7 @@ gss_unwrap_kerberos_v1(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
char cksumdata[GSS_KRB5_MAX_CKSUM_LEN];
struct xdr_netobj md5cksum = {.len = sizeof(cksumdata),
.data = cksumdata};
s32 now;
time64_t now;
int direction;
s32 seqnum;
unsigned char *ptr;
@ -359,7 +359,7 @@ gss_unwrap_kerberos_v1(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
/* it got through unscathed. Make sure the context is unexpired */
now = get_seconds();
now = ktime_get_real_seconds();
if (now > kctx->endtime)
return GSS_S_CONTEXT_EXPIRED;
@ -439,7 +439,7 @@ gss_wrap_kerberos_v2(struct krb5_ctx *kctx, u32 offset,
struct xdr_buf *buf, struct page **pages)
{
u8 *ptr, *plainhdr;
s32 now;
time64_t now;
u8 flags = 0x00;
__be16 *be16ptr;
__be64 *be64ptr;
@ -481,14 +481,14 @@ gss_wrap_kerberos_v2(struct krb5_ctx *kctx, u32 offset,
if (err)
return err;
now = get_seconds();
now = ktime_get_real_seconds();
return (kctx->endtime < now) ? GSS_S_CONTEXT_EXPIRED : GSS_S_COMPLETE;
}
static u32
gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
{
s32 now;
time64_t now;
u8 *ptr;
u8 flags = 0x00;
u16 ec, rrc;
@ -557,7 +557,7 @@ gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
/* do sequencing checks */
/* it got through unscathed. Make sure the context is unexpired */
now = get_seconds();
now = ktime_get_real_seconds();
if (now > kctx->endtime)
return GSS_S_CONTEXT_EXPIRED;

2
net/sunrpc/auth_gss/gss_mech_switch.c
View File

@ -376,7 +376,7 @@ int
gss_import_sec_context(const void *input_token, size_t bufsize,
struct gss_api_mech *mech,
struct gss_ctx **ctx_id,
time_t *endtime,
time64_t *endtime,
gfp_t gfp_mask)
{
if (!(*ctx_id = kzalloc(sizeof(**ctx_id), gfp_mask)))

6
net/sunrpc/auth_gss/svcauth_gss.c
View File

@ -203,7 +203,7 @@ static int rsi_parse(struct cache_detail *cd,
char *ep;
int len;
struct rsi rsii, *rsip = NULL;
time_t expiry;
time64_t expiry;
int status = -EINVAL;
memset(&rsii, 0, sizeof(rsii));
@ -436,7 +436,7 @@ static int rsc_parse(struct cache_detail *cd,
int id;
int len, rv;
struct rsc rsci, *rscp = NULL;
time_t expiry;
time64_t expiry;
int status = -EINVAL;
struct gss_api_mech *gm = NULL;
@ -1221,7 +1221,7 @@ static int gss_proxy_save_rsc(struct cache_detail *cd,
static atomic64_t ctxhctr;
long long ctxh;
struct gss_api_mech *gm = NULL;
time_t expiry;
time64_t expiry;
int status = -EINVAL;
memset(&rsci, 0, sizeof(rsci));

16
net/sunrpc/cache.c
View File

@ -42,7 +42,7 @@ static bool cache_listeners_exist(struct cache_detail *detail);
static void cache_init(struct cache_head *h, struct cache_detail *detail)
{
time_t now = seconds_since_boot();
time64_t now = seconds_since_boot();
INIT_HLIST_NODE(&h->cache_list);
h->flags = 0;
kref_init(&h->ref);
@ -139,10 +139,10 @@ EXPORT_SYMBOL_GPL(sunrpc_cache_lookup_rcu);
static void cache_dequeue(struct cache_detail *detail, struct cache_head *ch);
static void cache_fresh_locked(struct cache_head *head, time_t expiry,
static void cache_fresh_locked(struct cache_head *head, time64_t expiry,
struct cache_detail *detail)
{
time_t now = seconds_since_boot();
time64_t now = seconds_since_boot();
if (now <= detail->flush_time)
/* ensure it isn't immediately treated as expired */
now = detail->flush_time + 1;
@ -274,7 +274,7 @@ int cache_check(struct cache_detail *detail,
struct cache_head *h, struct cache_req *rqstp)
{
int rv;
long refresh_age, age;
time64_t refresh_age, age;
/* First decide return status as best we can */
rv = cache_is_valid(h);
@ -288,7 +288,7 @@ int cache_check(struct cache_detail *detail,
rv = -ENOENT;
} else if (rv == -EAGAIN ||
(h->expiry_time != 0 && age > refresh_age/2)) {
dprintk("RPC: Want update, refage=%ld, age=%ld\n",
dprintk("RPC: Want update, refage=%lld, age=%lld\n",
refresh_age, age);
if (!test_and_set_bit(CACHE_PENDING, &h->flags)) {
switch (cache_make_upcall(detail, h)) {
@ -1404,7 +1404,7 @@ static int c_show(struct seq_file *m, void *p)
return cd->cache_show(m, cd, NULL);
ifdebug(CACHE)
seq_printf(m, "# expiry=%ld refcnt=%d flags=%lx\n",
seq_printf(m, "# expiry=%lld refcnt=%d flags=%lx\n",
convert_to_wallclock(cp->expiry_time),
kref_read(&cp->ref), cp->flags);
cache_get(cp);
@ -1477,7 +1477,7 @@ static ssize_t read_flush(struct file *file, char __user *buf,
char tbuf[22];
size_t len;
len = snprintf(tbuf, sizeof(tbuf), "%lu\n",
len = snprintf(tbuf, sizeof(tbuf), "%llu\n",
convert_to_wallclock(cd->flush_time));
return simple_read_from_buffer(buf, count, ppos, tbuf, len);
}
@ -1488,7 +1488,7 @@ static ssize_t write_flush(struct file *file, const char __user *buf,
{
char tbuf[20];
char *ep;
time_t now;
time64_t now;
if (*ppos || count > sizeof(tbuf)-1)
return -EINVAL;

10
net/sunrpc/svcauth_unix.c
View File

@ -166,7 +166,7 @@ static void ip_map_request(struct cache_detail *cd,
}
static struct ip_map *__ip_map_lookup(struct cache_detail *cd, char *class, struct in6_addr *addr);
static int __ip_map_update(struct cache_detail *cd, struct ip_map *ipm, struct unix_domain *udom, time_t expiry);
static int __ip_map_update(struct cache_detail *cd, struct ip_map *ipm, struct unix_domain *udom, time64_t expiry);
static int ip_map_parse(struct cache_detail *cd,
char *mesg, int mlen)
@ -187,7 +187,7 @@ static int ip_map_parse(struct cache_detail *cd,
struct ip_map *ipmp;
struct auth_domain *dom;
time_t expiry;
time64_t expiry;
if (mesg[mlen-1] != '\n')
return -EINVAL;
@ -308,7 +308,7 @@ static inline struct ip_map *ip_map_lookup(struct net *net, char *class,
}
static int __ip_map_update(struct cache_detail *cd, struct ip_map *ipm,
struct unix_domain *udom, time_t expiry)
struct unix_domain *udom, time64_t expiry)
{
struct ip_map ip;
struct cache_head *ch;
@ -328,7 +328,7 @@ static int __ip_map_update(struct cache_detail *cd, struct ip_map *ipm,
}
static inline int ip_map_update(struct net *net, struct ip_map *ipm,
struct unix_domain *udom, time_t expiry)
struct unix_domain *udom, time64_t expiry)
{
struct sunrpc_net *sn;
@ -491,7 +491,7 @@ static int unix_gid_parse(struct cache_detail *cd,
int rv;
int i;
int err;
time_t expiry;
time64_t expiry;
struct unix_gid ug, *ugp;
if (mesg[mlen - 1] != '\n')