[PATCH 1/1] fixup: alloc_tag: mark inaccurate allocation counters in /proc/allocinfo output
From: Suren Baghdasaryan
Date: Tue Sep 16 2025 - 12:02:21 EST
Document new "accurate:no" marker.
Fixes: 39d117e04d15 ("alloc_tag: mark inaccurate allocation counters in /proc/allocinfo output")
Suggested-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Suren Baghdasaryan <surenb@xxxxxxxxxx>
---
Based on mm-new
Documentation/filesystems/proc.rst | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/filesystems/proc.rst b/Documentation/filesystems/proc.rst
index 1776a06571c2..17668f82ff1c 100644
--- a/Documentation/filesystems/proc.rst
+++ b/Documentation/filesystems/proc.rst
@@ -1014,6 +1014,14 @@ If file version is 2.0 or higher then each line may contain additional
For example if the counters are not accurate, the line will be appended with
"accurate:no" pair.
+Supported markers in v2:
+accurate:no
+ Absolute values of the counters in this line are not
+ accurate because of the failure to allocate storage required
+ to track some of the allocations made at this location.
+ Deltas in these counters are accurate, therefore counters
+ can be used to track allocation size and count changes.
+
Example output.
::
base-commit: 199236646ffd82b5a5bcf2bca1579ea06cb0ae74
--
2.51.0.384.g4c02a37b29-goog