[Regression 4.7-rc1] btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl

From	Joseph Salisbury <joseph.salisbury@canonical.com>
Newsgroups	linux.kernel
Subject	[Regression 4.7-rc1] btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl
Date	2017-01-06 18:30 +0100
Message-ID	<sWGuZ-569-13@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Hi Luke,

A kernel bug report was opened against Ubuntu [0].  This bug was fixed
by the following commit in v4.7-rc1:


commit 4c63c2454eff996c5e27991221106eb511f7db38

Author: Luke Dashjr <luke@dashjr.org>
Date:   Thu Oct 29 08:22:21 2015 +0000

    btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in
btrfs_ioctl


However, this commit introduced a new regression.  With this commit
applied, "btrfs fi show" no longer works and the btrfs snapshot
functionality breaks.



I was hoping to get your feedback, since you are the patch author.  Do
you think gathering any additional data will help diagnose this issue,
or would it be best to submit a revert request?


Thanks,

Joe


[0] http://pad.lv/1619918

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[Regression 4.7-rc1] btrfs: bugfix: handle  FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl Joseph Salisbury <joseph.salisbury@canonical.com> - 2017-01-06 18:30 +0100
  Re: [Regression 4.7-rc1] btrfs: bugfix: handle FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl Luke Dashjr <luke@dashjr.org> - 2017-01-06 19:00 +0100
  Re: [Regression 4.7-rc1] btrfs: bugfix: handle  FS_IOC32_{GETFLAGS,SETFLAGS,GETVERSION} in btrfs_ioctl David Sterba <dsterba@suse.cz> - 2017-01-09 12:40 +0100

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