Re: [PATCH v2 0/9] Extend fanotify dirent events

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On Fri, Nov 19, 2021 at 9:17 AM Amir Goldstein <amir73il@xxxxxxxxx> wrote:
>
> Jan,
>
> This is the 2nd version of FAN_REPORT_TARGET_FID patches [1].
>
> In the first version, extra info records about new and old parent+name
> were added to FAN_MOVED_FROM event.  This version uses a new event
> FAN_RENAME instead, to report those extra info records.
> The new FAN_RENAME event was designed as a replacement for the
> "inotify way" of joining the MOVED_FROM/MOVED_TO events using a cookie.
>
> FAN_RENAME event differs from MOVED_FROM/MOVED_TO events in several ways:
> 1) The information about old/new names is provided in a single event
> 2) When added to the ignored mask of a directory, FAN_RENAME is not
>    reported for renames to and from that directory
>
> The group flag FAN_REPORT_TARGET_FID adds an extra info record of
> the child fid to all the dirent events, including FAN_REANME.
> It is independent of the FAN_RENAME changes and implemented in the
> first patch, so it can be picked regardless of the FAN_RENAME patches.
>
> Patches [2] and LTP test [3] are available on my github.
> A man page draft will be provided later on.
>
> Thanks,
> Amir.
>
> [1] https://lore.kernel.org/linux-fsdevel/20211029114028.569755-1-amir73il@xxxxxxxxx/
> [2] https://github.com/amir73il/linux/commits/fan_rename
> [3] https://github.com/amir73il/ltp/commits/fan_rename

Here is a first man page draft [4].
It based on top of both FAN_REPORT_PIDFD and FAN_FS_ERROR patches.
I did not elaborate about the new info types yet in fanotify.7, because Matthew
was going to rephrase the entire section about fanotify_event_info_header.

Thanks,
Amir.

[4] https://github.com/amir73il/man-pages/commits/fan_rename



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