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0966a7b130
Unlike mirror based profiles, RAID5/6 recovery needs to read out the whole full stripe. And if we don't do proper protection, it can easily cause race condition. Introduce 2 new functions: lock_full_stripe() and unlock_full_stripe() for RAID5/6. Which store a rb_tree of mutexes for full stripes, so scrub callers can use them to lock a full stripe to avoid race. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> [ minor comment adjustments ] Signed-off-by: David Sterba <dsterba@suse.com> |
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| README | ||
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.