[PATCH] make O_EXCL in nd->intent.flags visible in nd->flags

New flag: LOOKUP_EXCL.  Set before doing the final step of pathname
resolution on the paths that have LOOKUP_CREATE and O_EXCL.

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

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/namei.c b/fs/namei.c
index e584f04745b5..2b8f823eda44 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1709,6 +1709,8 @@ struct file *do_filp_open(int dfd, const char *pathname,
         dir = nd.path.dentry;
         nd.flags &= ~LOOKUP_PARENT;
         nd.flags |= LOOKUP_CREATE | LOOKUP_OPEN;
+        if (flag & O_EXCL)
+                nd.flags |= LOOKUP_EXCL;
         mutex_lock(&dir->d_inode->i_mutex);
         path.dentry = lookup_hash(&nd);
         path.mnt = nd.path.mnt;
@@ -1906,7 +1908,7 @@ struct dentry *lookup_create(struct nameidata *nd, int is_dir)
         if (nd->last_type != LAST_NORM)
                 goto fail;
         nd->flags &= ~LOOKUP_PARENT;
-        nd->flags |= LOOKUP_CREATE;
+        nd->flags |= LOOKUP_CREATE | LOOKUP_EXCL;
         nd->intent.open.flags = O_EXCL;
 
         /*