linux-kernel - [PATCH 0/4] eventfs: More updates to eventfs

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Message-ID: <20240104215711.924088454@goodmis.org>
Date: Thu, 04 Jan 2024 16:57:11 -0500
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>,
 Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
 Andrew Morton <akpm@...ux-foundation.org>,
 Linus Torvalds <torvalds@...ux-foundation.org>,
 Al Viro <viro@...iv.linux.org.uk>,
 Christian Brauner <brauner@...nel.org>,
 linux-fsdevel@...r.kernel.org,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 0/4] eventfs: More updates to eventfs_iterate()

With the ongoing descussion of eventfs iterator, a few more changes
are required and some changes are just enhancements.

- Stop immediately in the loop if the ei is found to be in the process
  of being freed.

- Make the ctx->pos update consistent with the skipped previous read index.
  This fixes a bug with duplicate files being showned by 'ls'.

- Swap reading ei->entries with ei->children to make the next change
  easier to read

- Add a "shortcut" in the ei->entries array to skip over already read
  entries.


Steven Rostedt (Google) (4):
      eventfs: Have eventfs_iterate() stop immediately if ei->is_freed is set
      eventfs: Do ctx->pos update for all iterations in  eventfs_iterate()
      eventfs: Read ei->entries before ei->children in eventfs_iterate()
      eventfs: Shortcut eventfs_iterate() by skipping entries already read

----
 fs/tracefs/event_inode.c | 67 ++++++++++++++++++++++++++----------------------
 1 file changed, 36 insertions(+), 31 deletions(-)