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authorEric W. Biederman <ebiederm@xmission.com>2014-12-22 18:30:08 -0600
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2015-05-06 22:03:50 +0200
commit7052e71b2d085f76800115d4a212dcaf82b86262 (patch)
tree2d719cc7f0e189f4784cca5443e811191227b83e /include
parent953bab2cb35f8f6f2a0183c1b27ff7466f72bccc (diff)
mnt: Add MNT_UMOUNT flag
commit 590ce4bcbfb4e0462a720a4ad901e84416080bba upstream. In some instances it is necessary to know if the the unmounting process has begun on a mount. Add MNT_UMOUNT to make that reliably testable. This fix gets used in fixing locked mounts in MNT_DETACH Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mount.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mount.h b/include/linux/mount.h
index c2c561dc0114..564beeec5d83 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -61,6 +61,7 @@ struct mnt_namespace;
#define MNT_DOOMED 0x1000000
#define MNT_SYNC_UMOUNT 0x2000000
#define MNT_MARKED 0x4000000
+#define MNT_UMOUNT 0x8000000
struct vfsmount {
struct dentry *mnt_root; /* root of the mounted tree */