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Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - A few misc subsystems: kthread, scripts, ntfs, ocfs2, block, and vfs - Most the MM patches which precede the patches in Willy's tree: kasan, pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap, sparsemem, vmalloc, pagealloc, memory-failure, mlock, hugetlb, userfaultfd, vmscan, compaction, mempolicy, oom-kill, migration, thp, cma, autonuma, psi, ksm, page-poison, madvise, memory-hotplug, rmap, zswap, uaccess, ioremap, highmem, cleanups, kfence, hmm, and damon. * emailed patches from Andrew Morton <[email protected]>: (227 commits) mm/damon/sysfs: remove repeat container_of() in damon_sysfs_kdamond_release() Docs/ABI/testing: add DAMON sysfs interface ABI document Docs/admin-guide/mm/damon/usage: document DAMON sysfs interface selftests/damon: add a test for DAMON sysfs interface mm/damon/sysfs: support DAMOS stats mm/damon/sysfs: support DAMOS watermarks mm/damon/sysfs: support schemes prioritization mm/damon/sysfs: support DAMOS quotas mm/damon/sysfs: support DAMON-based Operation Schemes mm/damon/sysfs: support the physical address space monitoring mm/damon/sysfs: link DAMON for virtual address spaces monitoring mm/damon: implement a minimal stub for sysfs-based DAMON interface mm/damon/core: add number of each enum type values mm/damon/core: allow non-exclusive DAMON start/stop Docs/damon: update outdated term 'regions update interval' Docs/vm/damon/design: update DAMON-Idle Page Tracking interference handling Docs/vm/damon: call low level monitoring primitives the operations mm/damon: remove unnecessary CONFIG_DAMON option mm/damon/paddr,vaddr: remove damon_{p,v}a_{target_valid,set_operations}() mm/damon/dbgfs-test: fix is_target_id() change ...
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| what: /sys/kernel/mm/damon/ | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Interface for Data Access MONitoring (DAMON). Contains files | ||
| for controlling DAMON. For more details on DAMON itself, | ||
| please refer to Documentation/admin-guide/mm/damon/index.rst. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/ | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Interface for privileged users of DAMON. Contains files for | ||
| controlling DAMON that aimed to be used by privileged users. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/nr_kdamonds | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a number 'N' to this file creates the number of | ||
| directories for controlling each DAMON worker thread (kdamond) | ||
| named '0' to 'N-1' under the kdamonds/ directory. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/state | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing 'on' or 'off' to this file makes the kdamond starts or | ||
| stops, respectively. Reading the file returns the keywords | ||
| based on the current status. Writing 'update_schemes_stats' to | ||
| the file updates contents of schemes stats files of the | ||
| kdamond. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/pid | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Reading this file returns the pid of the kdamond if it is | ||
| running. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/nr_contexts | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a number 'N' to this file creates the number of | ||
| directories for controlling each DAMON context named '0' to | ||
| 'N-1' under the contexts/ directory. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/operations | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a keyword for a monitoring operations set ('vaddr' for | ||
| virtual address spaces monitoring, and 'paddr' for the physical | ||
| address space monitoring) to this file makes the context to use | ||
| the operations set. Reading the file returns the keyword for | ||
| the operations set the context is set to use. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/sample_us | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a value to this file sets the sampling interval of the | ||
| DAMON context in microseconds as the value. Reading this file | ||
| returns the value. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/aggr_us | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a value to this file sets the aggregation interval of | ||
| the DAMON context in microseconds as the value. Reading this | ||
| file returns the value. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/update_us | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a value to this file sets the update interval of the | ||
| DAMON context in microseconds as the value. Reading this file | ||
| returns the value. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/nr_regions/min | ||
|
|
||
| WDate: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a value to this file sets the minimum number of | ||
| monitoring regions of the DAMON context as the value. Reading | ||
| this file returns the value. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/nr_regions/max | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a value to this file sets the maximum number of | ||
| monitoring regions of the DAMON context as the value. Reading | ||
| this file returns the value. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/nr_targets | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a number 'N' to this file creates the number of | ||
| directories for controlling each DAMON target of the context | ||
| named '0' to 'N-1' under the contexts/ directory. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/pid_target | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the pid of | ||
| the target process if the context is for virtual address spaces | ||
| monitoring, respectively. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/nr_regions | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a number 'N' to this file creates the number of | ||
| directories for setting each DAMON target memory region of the | ||
| context named '0' to 'N-1' under the regions/ directory. In | ||
| case of the virtual address space monitoring, DAMON | ||
| automatically sets the target memory region based on the target | ||
| processes' mappings. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/<R>/start | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the start | ||
| address of the monitoring region. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/targets/<T>/regions/<R>/end | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the end | ||
| address of the monitoring region. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/nr_schemes | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing a number 'N' to this file creates the number of | ||
| directories for controlling each DAMON-based operation scheme | ||
| of the context named '0' to 'N-1' under the schemes/ directory. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/action | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the action | ||
| of the scheme. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/min | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the mimimum | ||
| size of the scheme's target regions in bytes. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/sz/max | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the maximum | ||
| size of the scheme's target regions in bytes. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/nr_accesses/min | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the manimum | ||
| 'nr_accesses' of the scheme's target regions. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/nr_accesses/max | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the maximum | ||
| 'nr_accesses' of the scheme's target regions. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/age/min | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the minimum | ||
| 'age' of the scheme's target regions. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/access_pattern/age/max | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the maximum | ||
| 'age' of the scheme's target regions. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/ms | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the time | ||
| quota of the scheme in milliseconds. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/bytes | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the size | ||
| quota of the scheme in bytes. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/reset_interval_ms | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the quotas | ||
| charge reset interval of the scheme in milliseconds. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/sz_permil | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the | ||
| under-quota limit regions prioritization weight for 'size' in | ||
| permil. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/nr_accesses_permil | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the | ||
| under-quota limit regions prioritization weight for | ||
| 'nr_accesses' in permil. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/quotas/weights/age_permil | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the | ||
| under-quota limit regions prioritization weight for 'age' in | ||
| permil. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/metric | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the metric | ||
| of the watermarks for the scheme. The writable/readable | ||
| keywords for this file are 'none' for disabling the watermarks | ||
| feature, or 'free_mem_rate' for the system's global free memory | ||
| rate in permil. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/interval_us | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the metric | ||
| check interval of the watermarks for the scheme in | ||
| microseconds. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/high | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the high | ||
| watermark of the scheme in permil. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/mid | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the mid | ||
| watermark of the scheme in permil. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/watermarks/low | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Writing to and reading from this file sets and gets the low | ||
| watermark of the scheme in permil. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_tried | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Reading this file returns the number of regions that the action | ||
| of the scheme has tried to be applied. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_tried | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Reading this file returns the total size of regions that the | ||
| action of the scheme has tried to be applied in bytes. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/nr_applied | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Reading this file returns the number of regions that the action | ||
| of the scheme has successfully applied. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/sz_applied | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Reading this file returns the total size of regions that the | ||
| action of the scheme has successfully applied in bytes. | ||
|
|
||
| What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/schemes/<S>/stats/qt_exceeds | ||
| Date: Mar 2022 | ||
| Contact: SeongJae Park <[email protected]> | ||
| Description: Reading this file returns the number of the exceed events of | ||
| the scheme's quotas. |
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