1What: /sys/fs/xfs/<disk>/log/log_head_lsn 2Date: July 2014 3KernelVersion: 3.17 4Contact: linux-xfs@vger.kernel.org 5Description: 6 The log sequence number (LSN) of the current head of the 7 log. The LSN is exported in "cycle:basic block" format. 8Users: xfstests 9 10What: /sys/fs/xfs/<disk>/log/log_tail_lsn 11Date: July 2014 12KernelVersion: 3.17 13Contact: linux-xfs@vger.kernel.org 14Description: 15 The log sequence number (LSN) of the current tail of the 16 log. The LSN is exported in "cycle:basic block" format. 17 18What: /sys/fs/xfs/<disk>/log/reserve_grant_head 19Date: July 2014 20KernelVersion: 3.17 21Contact: linux-xfs@vger.kernel.org 22Description: 23 The current state of the log reserve grant head. It 24 represents the total log reservation of all currently 25 outstanding transactions. The grant head is exported in 26 "cycle:bytes" format. 27Users: xfstests 28 29What: /sys/fs/xfs/<disk>/log/write_grant_head 30Date: July 2014 31KernelVersion: 3.17 32Contact: linux-xfs@vger.kernel.org 33Description: 34 The current state of the log write grant head. It 35 represents the total log reservation of all currently 36 outstanding transactions, including regrants due to 37 rolling transactions. The grant head is exported in 38 "cycle:bytes" format. 39Users: xfstests 40