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util: drop old utimensat() compat code 

Now that 9pfs and virtfs-proxy-helper have been converted to utimensat(),
we don't need to keep qemu_utimens() anymore.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Greg Kurz 2017-05-25 10:30:14 +02:00
parent 24df3371d9
commit fcdcf1eed2
3 changed files with 0 additions and 80 deletions
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22
configure vendored
View File

@ -3629,25 +3629,6 @@ if compile_prog "" "" ; then
inotify1=yes
fi
# check if utimensat and futimens are supported
utimens=no
cat > $TMPC << EOF
#define _ATFILE_SOURCE
#include <stddef.h>
#include <fcntl.h>
#include <sys/stat.h>
int main(void)
{
utimensat(AT_FDCWD, "foo", NULL, 0);
futimens(0, NULL);
return 0;
}
EOF
if compile_prog "" "" ; then
utimens=yes
fi
# check if pipe2 is there
pipe2=no
cat > $TMPC << EOF
@ -5434,9 +5415,6 @@ fi
if test "$curses" = "yes" ; then
echo "CONFIG_CURSES=y" >> $config_host_mak
fi
if test "$utimens" = "yes" ; then
echo "CONFIG_UTIMENSAT=y" >> $config_host_mak
fi
if test "$pipe2" = "yes" ; then
echo "CONFIG_PIPE2=y" >> $config_host_mak
fi

11
include/sysemu/os-posix.h
View File

@ -51,17 +51,6 @@ int os_mlock(void);
typedef struct timeval qemu_timeval;
#define qemu_gettimeofday(tp) gettimeofday(tp, NULL)
#ifndef CONFIG_UTIMENSAT
#ifndef UTIME_NOW
# define UTIME_NOW ((1l << 30) - 1l)
#endif
#ifndef UTIME_OMIT
# define UTIME_OMIT ((1l << 30) - 2l)
#endif
#endif
typedef struct timespec qemu_timespec;
int qemu_utimens(const char *path, const qemu_timespec *times);
bool is_daemonized(void);
/**

47
util/oslib-posix.c
View File

@ -207,53 +207,6 @@ int qemu_pipe(int pipefd[2])
return ret;
}
int qemu_utimens(const char *path, const struct timespec *times)
{
struct timeval tv[2], tv_now;
struct stat st;
int i;
#ifdef CONFIG_UTIMENSAT
int ret;
ret = utimensat(AT_FDCWD, path, times, AT_SYMLINK_NOFOLLOW);
if (ret != -1 || errno != ENOSYS) {
return ret;
}
#endif
/* Fallback: use utimes() instead of utimensat() */
/* happy if special cases */
if (times[0].tv_nsec == UTIME_OMIT && times[1].tv_nsec == UTIME_OMIT) {
return 0;
}
if (times[0].tv_nsec == UTIME_NOW && times[1].tv_nsec == UTIME_NOW) {
return utimes(path, NULL);
}
/* prepare for hard cases */
if (times[0].tv_nsec == UTIME_NOW || times[1].tv_nsec == UTIME_NOW) {
gettimeofday(&tv_now, NULL);
}
if (times[0].tv_nsec == UTIME_OMIT || times[1].tv_nsec == UTIME_OMIT) {
stat(path, &st);
}
for (i = 0; i < 2; i++) {
if (times[i].tv_nsec == UTIME_NOW) {
tv[i].tv_sec = tv_now.tv_sec;
tv[i].tv_usec = tv_now.tv_usec;
} else if (times[i].tv_nsec == UTIME_OMIT) {
tv[i].tv_sec = (i == 0) ? st.st_atime : st.st_mtime;
tv[i].tv_usec = 0;
} else {
tv[i].tv_sec = times[i].tv_sec;
tv[i].tv_usec = times[i].tv_nsec / 1000;
}
}
return utimes(path, &tv[0]);
}
char *
qemu_get_local_state_pathname(const char *relative_pathname)
{