diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2025-07-02 22:28:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-07-09 13:30:29 +0200 |
| commit | 4c0727e56831cf3646c604131e2eea25c734c9eb (patch) | |
| tree | 502afea9d90868e1b7872b0f38e54c8e13a7cb8e | |
| parent | 9d3b96be2ee81a7d6ad08cb5094753f06382db1b (diff) | |
blk-mq-debugfs: use debugfs_get_aux()
instead of manually stashing the data pointer into parent directory inode's
->i_private, just pass it to debugfs_create_file_aux() so that it can
be extracted without that insane chasing through ->d_parent.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Link: https://lore.kernel.org/r/20250702212818.GJ3406663@ZenIV
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | block/blk-mq-debugfs.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/block/blk-mq-debugfs.c b/block/blk-mq-debugfs.c index 29b3540dd180..7ed3e71f2fc0 100644 --- a/block/blk-mq-debugfs.c +++ b/block/blk-mq-debugfs.c @@ -521,7 +521,7 @@ CTX_RQ_SEQ_OPS(poll, HCTX_TYPE_POLL); static int blk_mq_debugfs_show(struct seq_file *m, void *v) { const struct blk_mq_debugfs_attr *attr = m->private; - void *data = d_inode(m->file->f_path.dentry->d_parent)->i_private; + void *data = debugfs_get_aux(m->file); return attr->show(data, m); } @@ -531,7 +531,7 @@ static ssize_t blk_mq_debugfs_write(struct file *file, const char __user *buf, { struct seq_file *m = file->private_data; const struct blk_mq_debugfs_attr *attr = m->private; - void *data = d_inode(file->f_path.dentry->d_parent)->i_private; + void *data = debugfs_get_aux(file); /* * Attributes that only implement .seq_ops are read-only and 'attr' is @@ -546,7 +546,7 @@ static ssize_t blk_mq_debugfs_write(struct file *file, const char __user *buf, static int blk_mq_debugfs_open(struct inode *inode, struct file *file) { const struct blk_mq_debugfs_attr *attr = inode->i_private; - void *data = d_inode(file->f_path.dentry->d_parent)->i_private; + void *data = debugfs_get_aux(file); struct seq_file *m; int ret; @@ -612,11 +612,9 @@ static void debugfs_create_files(struct dentry *parent, void *data, if (IS_ERR_OR_NULL(parent)) return; - d_inode(parent)->i_private = data; - for (; attr->name; attr++) - debugfs_create_file(attr->name, attr->mode, parent, - (void *)attr, &blk_mq_debugfs_fops); + debugfs_create_file_aux(attr->name, attr->mode, parent, + (void *)attr, data, &blk_mq_debugfs_fops); } void blk_mq_debugfs_register(struct request_queue *q) |