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-rw-r--r--fs/kernfs/kernfs-internal.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h
index 40a2a9cd819d..24e9514565ac 100644
--- a/fs/kernfs/kernfs-internal.h
+++ b/fs/kernfs/kernfs-internal.h
@@ -40,6 +40,7 @@ struct kernfs_root {
/* private fields, do not use outside kernfs proper */
struct idr ino_idr;
+ spinlock_t kernfs_idr_lock; /* root->ino_idr */
u32 last_id_lowbits;
u32 id_highbits;
struct kernfs_syscall_ops *syscall_ops;