btrfs: log message when rw remount is attempted with unclean tree-log

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commit 10a3a3edc5 upstream.

A remount to a read-write filesystem is not safe when there's tree-log
to be replayed. Files that could be opened until now might be affected
by the changes in the tree-log.

A regular mount is needed to replay the log so the filesystem presents
the consistent view with the pending changes included.

CC: stable@vger.kernel.org # 4.4+
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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David Sterba 2020-02-05 17:12:28 +01:00 • committed by Greg Kroah-Hartman

parent eb7a7968c9

commit f7447ff1d5

1 changed files with 2 additions and 0 deletions

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fs/btrfs/super.c

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