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eventfs: Have a free_ei() that just frees the eventfs_inode

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As the eventfs_inode is freed in two different locations, make a helper
function free_ei() to make sure all the allocated fields of the
eventfs_inode is freed.

This requires renaming the existing free_ei() which is called by the srcu
handler to free_rcu_ei() and have free_ei() just do the freeing, where
free_rcu_ei() will call it.

Link: https://lkml.kernel.org/r/20231101172649.265214087@goodmis.org

Cc: Ajay Kaher <akaher@vmware.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Google) 2023-11-01 13:25:43 -04:00
parent f2f496370a
commit db3a397209
1 changed files with 11 additions and 8 deletions
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19
fs/tracefs/event_inode.c
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@ -129,6 +129,13 @@ static struct dentry *create_dir(const char *name, struct dentry *parent)
return eventfs_end_creating(dentry);
}
static void free_ei(struct eventfs_inode *ei)
{
kfree_const(ei->name);
kfree(ei->d_children);
kfree(ei);
}
/**
* eventfs_set_ei_status_free - remove the dentry reference from an eventfs_inode
* @ti: the tracefs_inode of the dentry
@ -168,9 +175,7 @@ void eventfs_set_ei_status_free(struct tracefs_inode *ti, struct dentry *dentry)
eventfs_remove_dir(ei_child);
}
kfree_const(ei->name);
kfree(ei->d_children);
kfree(ei);
free_ei(ei);
return;
}
@ -784,13 +789,11 @@ struct eventfs_inode *eventfs_create_events_dir(const char *name, struct dentry
return ERR_PTR(-ENOMEM);
}
static void free_ei(struct rcu_head *head)
static void free_rcu_ei(struct rcu_head *head)
{
struct eventfs_inode *ei = container_of(head, struct eventfs_inode, rcu);
kfree_const(ei->name);
kfree(ei->d_children);
kfree(ei);
free_ei(ei);
}
/**
@ -881,7 +884,7 @@ void eventfs_remove_dir(struct eventfs_inode *ei)
for (i = 0; i < ei->nr_entries; i++)
unhook_dentry(&ei->d_children[i], &dentry_list);
unhook_dentry(&ei->dentry, &dentry_list);
call_srcu(&eventfs_srcu, &ei->rcu, free_ei);
call_srcu(&eventfs_srcu, &ei->rcu, free_rcu_ei);
}
mutex_unlock(&eventfs_mutex);