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Linux 4.18 compat: inode timespec -> timespec64

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Commit torvalds/linux@95582b0 changes the inode i_atime, i_mtime,
and i_ctime members form timespec's to timespec64's to make them
2038 safe.  As part of this change the current_time() function was
also updated to return the timespec64 type.

Resolve this issue by introducing a new inode_timespec_t type which
is defined to match the timespec type used by the inode.  It should
be used when working with inode timestamps to ensure matching types.

The timestruc_t type under Illumos was used in a similar fashion but
was specified to always be a timespec_t.  Rather than incorrectly
define this type all timespec_t types have been replaced by the new
inode_timespec_t type.

Finally, the kernel and user space 'sys/time.h' headers were aligned
with each other.  They define as appropriate for the context several
constants as macros and include static inline implementation of
gethrestime(), gethrestime_sec(), and gethrtime().

Reviewed-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7643
Backported-by: Richard Yao <ryao@gentoo.org>
This commit is contained in:
Brian Behlendorf
2018-08-12 18:22:03 -04:00
committed by Tony Hutter
parent 1667816089
commit f79c0de208
21 changed files with 86 additions and 131 deletions
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lib/libspl/include/sys/time.h
+27 -6
View File
@@ -27,8 +27,9 @@
#ifndef _LIBSPL_SYS_TIME_H
#define _LIBSPL_SYS_TIME_H
#include_next <sys/time.h>
#include <time.h>
#include <sys/types.h>
#include_next <sys/time.h>
#ifndef SEC
#define SEC 1
@@ -70,13 +71,33 @@
#define SEC2NSEC(m) ((hrtime_t)(m) * (NANOSEC / SEC))
#endif
typedef long long hrtime_t;
typedef struct timespec timestruc_t;
typedef struct timespec timespec_t;
typedef struct timespec timespec_t;
typedef struct timespec inode_timespec_t;
static inline void
gethrestime(inode_timespec_t *ts)
{
struct timeval tv;
(void) gettimeofday(&tv, NULL);
ts->tv_sec = tv.tv_sec;
ts->tv_nsec = tv.tv_usec * NSEC_PER_USEC;
}
extern hrtime_t gethrtime(void);
extern void gethrestime(timestruc_t *);
static inline time_t
gethrestime_sec(void)
{
struct timeval tv;
(void) gettimeofday(&tv, NULL);
return (tv.tv_sec);
}
static inline hrtime_t
gethrtime(void)
{
struct timespec ts;
(void) clock_gettime(CLOCK_MONOTONIC, &ts);
return ((((u_int64_t)ts.tv_sec) * NANOSEC) + ts.tv_nsec);
}
#endif /* _LIBSPL_SYS_TIME_H */