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c94bec2c61
In doing my fsstress+EIO stress testing I started running into issues where umount would get stuck forever because the uuid checker was chewing through the thousands of subvolumes I had created. We shouldn't block umount on this, simply bail if we're unmounting the fs. We need to make sure we don't mark the UUID tree as ok, so we only set that bit if we made it through the whole rescan operation, but otherwise this is completely safe. Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Signed-off-by: Josef Bacik <josef@toxicpanda.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.