linux-kernel - [PATCH v6 0/8] eventfs: Fixing dynamic creation

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Message-ID: <20231101172541.971928390@goodmis.org>
Date:   Wed, 01 Nov 2023 13:25:41 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Cc:     Masami Hiramatsu <mhiramat@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: [PATCH v6 0/8] eventfs: Fixing dynamic creation


Changes since v5: https://lore.kernel.org/all/20231031223326.794680978@goodmis.org/

This was originally based on:

  [PATCH] eventfs: Process deletion of dentry more thoroughly
  https://lore.kernel.org/linux-trace-kernel/20231031144703.71eef3a0@gandalf.local.home/

But Al Viro asked why I do not use use simple_recursive_removal()?
Which at first I thought I could not, but after playing with it
more I realized I could (with a little addition of dget()'s to
balance the dput()s). This simplifies the code. But to do this, it
really needs to be done *after* these changes. Hence, I moved that
patch to after this series and to handle this rebase, I'm reposting
all the patches and including the above mentioned patch at the end
and renamed to:

  eventfs: Use simple_recursive_removal() to clean up dentries

I hope this is the last series, as this *is* for this merge window!

Steven Rostedt (Google) (8):
      eventfs: Remove "is_freed" union with rcu head
      eventfs: Have a free_ei() that just frees the eventfs_inode
      eventfs: Test for ei->is_freed when accessing ei->dentry
      eventfs: Save ownership and mode
      eventfs: Hold eventfs_mutex when calling callback functions
      eventfs: Delete eventfs_inode when the last dentry is freed
      eventfs: Remove special processing of dput() of events directory
      eventfs: Use simple_recursive_removal() to clean up dentries

----
 fs/tracefs/event_inode.c | 420 ++++++++++++++++++++++++++++++++---------------
 fs/tracefs/internal.h    |  29 +++-
 include/linux/tracefs.h  |  43 +++++
 3 files changed, 357 insertions(+), 135 deletions(-)