1What: /sys/fs/incremental-fs/features/corefs 2Date: 2019 3Contact: Paul Lawrence <paullawrence@google.com> 4Description: Reads 'supported'. Always present. 5 6What: /sys/fs/incremental-fs/features/v2 7Date: April 2021 8Contact: Paul Lawrence <paullawrence@google.com> 9Description: Reads 'supported'. Present if all v2 features of incfs are 10 supported. 11 12What: /sys/fs/incremental-fs/features/zstd 13Date: April 2021 14Contact: Paul Lawrence <paullawrence@google.com> 15Description: Reads 'supported'. Present if zstd compression is supported 16 for data blocks. 17 18What: /sys/fs/incremental-fs/features/bugfix_throttling 19Date: January 2023 20Contact: Paul Lawrence <paullawrence@google.com> 21Description: Reads 'supported'. Present if the throttling lock bug is fixed 22 https://android-review.git.corp.google.com/c/kernel/common/+/2381827 23 24What: /sys/fs/incremental-fs/instances/[name] 25Date: April 2021 26Contact: Paul Lawrence <paullawrence@google.com> 27Description: Folder created when incfs is mounted with the sysfs_name=[name] 28 option. If this option is used, the following values are created 29 in this folder. 30 31What: /sys/fs/incremental-fs/instances/[name]/reads_delayed_min 32Date: April 2021 33Contact: Paul Lawrence <paullawrence@google.com> 34Description: Returns a count of the number of reads that were delayed as a 35 result of the per UID read timeouts min time setting. 36 37What: /sys/fs/incremental-fs/instances/[name]/reads_delayed_min_us 38Date: April 2021 39Contact: Paul Lawrence <paullawrence@google.com> 40Description: Returns total delay time for all files since first mount as a 41 result of the per UID read timeouts min time setting. 42 43What: /sys/fs/incremental-fs/instances/[name]/reads_delayed_pending 44Date: April 2021 45Contact: Paul Lawrence <paullawrence@google.com> 46Description: Returns a count of the number of reads that were delayed as a 47 result of waiting for a pending read. 48 49What: /sys/fs/incremental-fs/instances/[name]/reads_delayed_pending_us 50Date: April 2021 51Contact: Paul Lawrence <paullawrence@google.com> 52Description: Returns total delay time for all files since first mount as a 53 result of waiting for a pending read. 54 55What: /sys/fs/incremental-fs/instances/[name]/reads_failed_hash_verification 56Date: April 2021 57Contact: Paul Lawrence <paullawrence@google.com> 58Description: Returns number of reads that failed because of hash verification 59 failures. 60 61What: /sys/fs/incremental-fs/instances/[name]/reads_failed_other 62Date: April 2021 63Contact: Paul Lawrence <paullawrence@google.com> 64Description: Returns number of reads that failed for reasons other than 65 timing out or hash failures. 66 67What: /sys/fs/incremental-fs/instances/[name]/reads_failed_timed_out 68Date: April 2021 69Contact: Paul Lawrence <paullawrence@google.com> 70Description: Returns number of reads that timed out. 71