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mkfs.ext4 -O inline_data /dev/vdb mount -o dioread_nolock /dev/vdb /mnt echo "some inline data..." >> /mnt/test-file echo "some inline data..." >> /mnt/test-file sync The above script will trigger "WARN_ON(!io_end->handle && sbi->s_journal)" because ext4_should_dioread_nolock() returns false for a file with inline data. Move the check to a place after we have already removed the inline data and prepared inode to write normal pages. Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: yangerkun <yangerkun@huawei.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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.