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Even though btrfs_start_dirty_block_groups is fairly in the beginning of btrfs_commit_transaction outside of the critical section defined by the transaction states it can only be run by a single comitter. In other words it defines its own critical section thanks to the BTRFS_TRANS_DIRTY_BG run flag and ro_block_group_mutex. However, its error handling is outside of this critical section which is a bit counter-intuitive. So move the error handling righ after the function is executed and let the sole runner of dirty block groups handle the return value. No functional changes. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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.