Messages in this thread Patch in this message | | | From | Thomas Richter <> | Subject | [PATCH] inode: debugfs_create_dir uses mode permission from parent | Date | Fri, 27 Apr 2018 10:07:12 +0200 |
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Currently function debugfs_create_dir() creates a new directory in the debugfs (usually mounted /sys/kernel/debug) with permission rwxr-xr-x. This is hard coded.
Change this to use the parent directory permission.
Fixes: edac65eaf8d5c ("debugfs: take mode-dependent parts of debugfs_get_inode() into callers") Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- fs/debugfs/inode.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c index 13b01351dd1c..80618330d86a 100644 --- a/fs/debugfs/inode.c +++ b/fs/debugfs/inode.c @@ -512,7 +512,10 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent) if (unlikely(!inode)) return failed_creating(dentry); - inode->i_mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO; + if(!parent) + parent = debugfs_mount->mnt_root; + inode->i_mode = S_IFDIR | (d_inode(parent)->i_mode + & (S_IRWXU | S_IRWXG)); inode->i_op = &simple_dir_inode_operations; inode->i_fop = &simple_dir_operations; -- 2.14.3
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