| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | What: /sys/fs/incremental-fs/features/corefs |
| 2 | Date: 2019 |
| 3 | Contact: Paul Lawrence <paullawrence@google.com> |
| 4 | Description: Reads 'supported'. Always present. |
| 5 | |
| 6 | What: /sys/fs/incremental-fs/features/v2 |
| 7 | Date: April 2021 |
| 8 | Contact: Paul Lawrence <paullawrence@google.com> |
| 9 | Description: Reads 'supported'. Present if all v2 features of incfs are |
| 10 | supported. |
| 11 | |
| 12 | What: /sys/fs/incremental-fs/features/zstd |
| 13 | Date: April 2021 |
| 14 | Contact: Paul Lawrence <paullawrence@google.com> |
| 15 | Description: Reads 'supported'. Present if zstd compression is supported |
| 16 | for data blocks. |
| 17 | |
| 18 | What: /sys/fs/incremental-fs/features/bugfix_throttling |
| 19 | Date: January 2023 |
| 20 | Contact: Paul Lawrence <paullawrence@google.com> |
| 21 | Description: Reads 'supported'. Present if the throttling lock bug is fixed |
| 22 | https://android-review.git.corp.google.com/c/kernel/common/+/2381827 |
| 23 | |
| 24 | What: /sys/fs/incremental-fs/instances/[name] |
| 25 | Date: April 2021 |
| 26 | Contact: Paul Lawrence <paullawrence@google.com> |
| 27 | Description: 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 | |
| 31 | What: /sys/fs/incremental-fs/instances/[name]/reads_delayed_min |
| 32 | Date: April 2021 |
| 33 | Contact: Paul Lawrence <paullawrence@google.com> |
| 34 | Description: 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 | |
| 37 | What: /sys/fs/incremental-fs/instances/[name]/reads_delayed_min_us |
| 38 | Date: April 2021 |
| 39 | Contact: Paul Lawrence <paullawrence@google.com> |
| 40 | Description: Returns total delay time for all files since first mount as a |
| 41 | result of the per UID read timeouts min time setting. |
| 42 | |
| 43 | What: /sys/fs/incremental-fs/instances/[name]/reads_delayed_pending |
| 44 | Date: April 2021 |
| 45 | Contact: Paul Lawrence <paullawrence@google.com> |
| 46 | Description: Returns a count of the number of reads that were delayed as a |
| 47 | result of waiting for a pending read. |
| 48 | |
| 49 | What: /sys/fs/incremental-fs/instances/[name]/reads_delayed_pending_us |
| 50 | Date: April 2021 |
| 51 | Contact: Paul Lawrence <paullawrence@google.com> |
| 52 | Description: Returns total delay time for all files since first mount as a |
| 53 | result of waiting for a pending read. |
| 54 | |
| 55 | What: /sys/fs/incremental-fs/instances/[name]/reads_failed_hash_verification |
| 56 | Date: April 2021 |
| 57 | Contact: Paul Lawrence <paullawrence@google.com> |
| 58 | Description: Returns number of reads that failed because of hash verification |
| 59 | failures. |
| 60 | |
| 61 | What: /sys/fs/incremental-fs/instances/[name]/reads_failed_other |
| 62 | Date: April 2021 |
| 63 | Contact: Paul Lawrence <paullawrence@google.com> |
| 64 | Description: Returns number of reads that failed for reasons other than |
| 65 | timing out or hash failures. |
| 66 | |
| 67 | What: /sys/fs/incremental-fs/instances/[name]/reads_failed_timed_out |
| 68 | Date: April 2021 |
| 69 | Contact: Paul Lawrence <paullawrence@google.com> |
| 70 | Description: Returns number of reads that timed out. |