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[ Upstream commit 4d5cdd757d0c74924b629559fccb68d8803ce995 ] There's nothing page-specific happening in ext4_da_do_write_end(); it's merely used for its refcount & lock, both of which are folio properties. Saves four calls to compound_head(). Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20231214053035.1018876-1-willy@infradead.org Signed-off-by: Theodore Ts'o <tytso@mit.edu> Stable-dep-of: 83f4414b8f84 ("ext4: sanity check for NULL pointer after ext4_force_shutdown") Signed-off-by: Sasha Levin <sashal@kernel.org>
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.