mirror of
https://github.com/checkpoint-restore/criu
synced 2025-08-28 21:07:43 +00:00
43 lines
752 B
C
43 lines
752 B
C
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#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 "mount.h"
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#include "proc_parse.h"
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/*
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* Returns path for mount device @s_dev
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*
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* FIXME this is not sufficient in general
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* since mount points can be overmounted but
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* works for now.
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*/
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int open_mnt_root(unsigned int s_dev, struct proc_mountinfo *mntinfo, int nr_mntinfo)
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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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