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91389240a2
When journalling quotas, we writeback all dquots immediately after changing them as part of current transation. Thus there's no need to write anything in dquot_writeback_dquots() and so we can avoid updating list of dirty dquots to reduce dq_list_lock contention. This change reduces time to create 500000 files on ext4 on ramdisk by 50 different processes in separate directories by 15% when user quota is turned on. Signed-off-by: Jan Kara <jack@suse.cz> |
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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.