[O_TMPFILE] it's still short a few helpers, but infrastructure should be OK now...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 1a6bb81f0fe5..86da7595ba31 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -246,6 +246,8 @@ extern struct dentry * d_make_root(struct inode *);
 /* <clickety>-<click> the ramfs-type tree */
 extern void d_genocide(struct dentry *);
 
+extern void d_tmpfile(struct dentry *, struct inode *);
+
 extern struct dentry *d_find_alias(struct inode *);
 extern void d_prune_aliases(struct inode *);
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7c30e3a62baf..dd6615f0fd13 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1580,6 +1580,7 @@ struct inode_operations {
         int (*atomic_open)(struct inode *, struct dentry *,
                            struct file *, unsigned open_flag,
                            umode_t create_mode, int *opened);
+        int (*tmpfile) (struct inode *, struct dentry *, umode_t);
 } ____cacheline_aligned;
 
 ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
diff --git a/include/uapi/asm-generic/fcntl.h b/include/uapi/asm-generic/fcntl.h
index a48937d4a5ea..06632beaa6d5 100644
--- a/include/uapi/asm-generic/fcntl.h
+++ b/include/uapi/asm-generic/fcntl.h
@@ -84,6 +84,10 @@
 #define O_PATH          010000000
 #endif
 
+#ifndef O_TMPFILE
+#define O_TMPFILE       020000000
+#endif
+
 #ifndef O_NDELAY
 #define O_NDELAY        O_NONBLOCK
 #endif