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authorEric W. Biederman <ebiederm@xmission.com>2014-12-22 18:30:08 -0600
committerEric W. Biederman <ebiederm@xmission.com>2015-04-02 20:34:18 -0500
commit590ce4bcbfb4e0462a720a4ad901e84416080bba (patch)
treee5597263904eda7b9e869e57851c6f5dd6737e47 /include/linux/mount.h
parentc003b26ff98ca04a180ff34c38c007a3998d62f9 (diff)
mnt: Add MNT_UMOUNT flag
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 Cc: stable@vger.kernel.org Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'include/linux/mount.h')
-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 */