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To allow applications to easily check the current usage status of the open zone resources of the mounted device, export through sysfs the counter of write open sequential files s_wro_seq_files field of struct zonefs_sb_info. The attribute is named nr_wro_seq_files and is read only. The maximum number of write open sequential files (zones) indicated by the s_max_wro_seq_files field of struct zonefs_sb_info is also exported as the read only attribute max_wro_seq_files. Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com> Reviewed-by: Hans Holmberg <hans.holmberg@wdc.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.