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Merge pull request #2480 from brauner/2018-07-18/add_required_mount_flags

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conf: the atime flags are locked in userns
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Stéphane Graber 2018-07-19 16:18:21 -04:00 committed by GitHub
commit 8fd3e219c2
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1 changed files with 21 additions and 11 deletions
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32
src/lxc/conf.c
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@ -609,9 +609,6 @@ unsigned long add_required_remount_flags(const char *s, const char *d,
struct statvfs sb;
unsigned long required_flags = 0;
if (!(flags & MS_REMOUNT))
return flags;
if (!s)
s = d;
@ -622,14 +619,27 @@ unsigned long add_required_remount_flags(const char *s, const char *d,
if (ret < 0)
return flags;
if (sb.f_flag & MS_NOSUID)
required_flags |= MS_NOSUID;
if (sb.f_flag & MS_NODEV)
required_flags |= MS_NODEV;
if (sb.f_flag & MS_RDONLY)
required_flags |= MS_RDONLY;
if (sb.f_flag & MS_NOEXEC)
required_flags |= MS_NOEXEC;
if (flags & MS_REMOUNT) {
if (sb.f_flag & MS_NOSUID)
required_flags |= MS_NOSUID;
if (sb.f_flag & MS_NODEV)
required_flags |= MS_NODEV;
if (sb.f_flag & MS_RDONLY)
required_flags |= MS_RDONLY;
if (sb.f_flag & MS_NOEXEC)
required_flags |= MS_NOEXEC;
}
if (sb.f_flag & MS_NOATIME)
required_flags |= MS_NOATIME;
if (sb.f_flag & MS_NODIRATIME)
required_flags |= MS_NODIRATIME;
if (sb.f_flag & MS_LAZYTIME)
required_flags |= MS_LAZYTIME;
if (sb.f_flag & MS_RELATIME)
required_flags |= MS_RELATIME;
if (sb.f_flag & MS_STRICTATIME)
required_flags |= MS_STRICTATIME;
return flags | required_flags;
#else