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mcoverlayfs: supported only Linux kernel 4.0

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This commit is contained in:
Yoichi Umezawa
2016-06-03 18:36:55 +09:00
parent 14ec92518e
commit d0ee60f9e3
3 changed files with 29 additions and 13 deletions
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13
executer/user/mcexec.c
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@@ -1091,7 +1091,7 @@ void init_worker_threads(int fd)
}
#ifdef ENABLE_MCOVERLAYFS
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(4,1,0)
#define READ_BUFSIZE 1024
static int isunshare(void)
{
@@ -1353,7 +1353,7 @@ int main(int argc, char **argv)
}
#ifdef ENABLE_MCOVERLAYFS
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(4,1,0)
__dprintf("mcoverlay enable\n");
char mcos_procdir[PATH_MAX];
char mcos_sysdir[PATH_MAX];
@@ -1401,7 +1401,7 @@ int main(int argc, char **argv)
} else if (error == -1) {
return 1;
}
#endif // LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)
#endif
#else
__dprintf("mcoverlay disable\n");
#endif // ENABLE_MCOVERLAYFS
@@ -1737,9 +1737,11 @@ int close_cloexec_fds(int mcos_fd)
char *
chgpath(char *in, char *buf)
{
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0)
#ifdef ENABLE_MCOVERLAYFS
#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,0,0) && LINUX_VERSION_CODE < KERNEL_VERSION(4,1,0)
return in;
#else
#endif
#endif // ENABLE_MCOVERLAYFS
char *fn = in;
struct stat sb;
@@ -1760,7 +1762,6 @@ chgpath(char *in, char *buf)
if(stat(fn, &sb) == -1)
return in;
return fn;
#endif
}
int main_loop(int fd, int cpu, pthread_mutex_t *lock)