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72d36d0529c6d9ee8b950c819508b1e344d8cc4f
Add support for the IOMAP_ZERO iomap operation so that iomap_zero_range will work as expected. In the IOMAP_ZERO case, the caller of iomap_zero_range is responsible for taking an exclusive glock on the inode, so we need no additional locking in gfs2_iomap_begin. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> Reviewed-by: Bob Peterson <rpeterso@redhat.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.
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