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8b2ded1c94
It is possible to call fsync on a read-only handle (for example, fsck.ext2 does it when doing read-only check), and this call results in kernel warning. The patchb089cfd95d("block: don't warn for flush on read-only device") attempted to disable the warning, but it is buggy and it doesn't (op_is_flush tests flags, but bio_op strips off the flags). Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Fixes:721c7fc701("block: fail op_is_write() requests to read-only partitions") Cc: stable@vger.kernel.org # 4.18 Signed-off-by: Jens Axboe <axboe@kernel.dk>
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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.