mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-22 17:49:13 +00:00
bff52ba952
v2: - open_mount is cleaned up - byte-stream hex conversion remains untouched since strtol is flipping numbers to LE manner Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
55 lines
923 B
C
55 lines
923 B
C
#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <string.h>
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#include "types.h"
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#include "util.h"
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#include "log.h"
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#include "mount.h"
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#include "proc_parse.h"
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static struct proc_mountinfo *mntinfo;
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static int nr_mntinfo;
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int open_mount(unsigned int s_dev)
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{
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static int last = 0;
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int i;
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again:
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for (i = last; i < nr_mntinfo; i++) {
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if (s_dev == mntinfo[i].s_dev) {
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last = i;
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return open(mntinfo[i].mnt_root, O_RDONLY);
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}
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}
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if (last) {
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last = 0;
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goto again;
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}
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return -ENOENT;
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}
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int collect_mount_info(void)
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{
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nr_mntinfo = 64;
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mntinfo = xmalloc(sizeof(*mntinfo) * nr_mntinfo);
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if (!mntinfo)
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return -1;
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nr_mntinfo = parse_mountinfo(getpid(), mntinfo, nr_mntinfo);
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if (nr_mntinfo < 1) {
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pr_err("Parsing mountinfo %d failed\n", getpid());
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return -1;
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}
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return 0;
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}
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