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a514d63882
Unlike previous method that tries to commit transaction inside qgroup_reserve(), this time we will try to commit transaction using fs_info->transaction_kthread to avoid nested transaction and no need to worry about locking context. Since it's an asynchronous function call and we won't wait for transaction commit, unlike previous method, we must call it before we hit the qgroup limit. So this patch will use the ratio and size of qgroup meta_pertrans reservation as indicator to check if we should trigger a transaction commit. (meta_prealloc won't be cleaned in transaction committ, it's useless anyway) Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.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.