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A mirror of the official Linux kernel repository just in case
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In order to using discard function, it is necessary that not only xfs is mounted with discard option, but also the discard function is supported by the device. Current code doesn't output any message when users mount with discard option on unsupported device, so it is difficult to notice that it was not enabled actually. This patch adds the warning message to notice that discard option is not enabled due to unsupported device when the filesystem is mounted. Changes in v2 (Suggested by Brian Foster): - Move the unsupported device check into xfs_fs_fill_super(). - Clear the discard flag when device is unsupported. Signed-off-by: Kenjiro Nakayama <nakayamakenjiro@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> |
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Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.