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-rw-r--r--Documentation/ABI/testing/sysfs-kernel-mm-damon25
1 files changed, 18 insertions, 7 deletions
diff --git a/Documentation/ABI/testing/sysfs-kernel-mm-damon b/Documentation/ABI/testing/sysfs-kernel-mm-damon
index 9e282065cbcf..08b9df323560 100644
--- a/Documentation/ABI/testing/sysfs-kernel-mm-damon
+++ b/Documentation/ABI/testing/sysfs-kernel-mm-damon
@@ -23,9 +23,10 @@ Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
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.
+ based on the current status. Writing 'commit' to this file
+ makes the kdamond reads the user inputs in the sysfs files
+ except 'state' again. 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
@@ -40,14 +41,24 @@ 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>/avail_operations
+Date: Apr 2022
+Contact: SeongJae Park <sj@kernel.org>
+Description: Reading this file returns the available monitoring operations
+ sets on the currently running kernel.
+
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/operations
Date: Mar 2022
Contact: SeongJae Park <sj@kernel.org>
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.
+ virtual address spaces monitoring, 'fvaddr' for fixed virtual
+ address ranges 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.
+
+ Note that only the operations sets that listed in
+ 'avail_operations' file are valid inputs.
What: /sys/kernel/mm/damon/admin/kdamonds/<K>/contexts/<C>/monitoring_attrs/intervals/sample_us
Date: Mar 2022