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Diffstat (limited to 'fs')
-rw-r--r--fs/stat.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/stat.c b/fs/stat.c
index f7f07d1b73cb..3d88c99f7743 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -22,6 +22,7 @@
#include <asm/unistd.h>
#include "internal.h"
+#include "mount.h"
/**
* generic_fillattr - Fill in the basic attributes from the inode struct
@@ -199,6 +200,8 @@ retry:
goto out;
error = vfs_getattr(&path, stat, request_mask, flags);
+ stat->mnt_id = real_mount(path.mnt)->mnt_id;
+ stat->result_mask |= STATX_MNT_ID;
path_put(&path);
if (retry_estale(error, lookup_flags)) {
lookup_flags |= LOOKUP_REVAL;
@@ -563,6 +566,7 @@ cp_statx(const struct kstat *stat, struct statx __user *buffer)
tmp.stx_rdev_minor = MINOR(stat->rdev);
tmp.stx_dev_major = MAJOR(stat->dev);
tmp.stx_dev_minor = MINOR(stat->dev);
+ tmp.stx_mnt_id = stat->mnt_id;
return copy_to_user(buffer, &tmp, sizeof(tmp)) ? -EFAULT : 0;
}