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2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/Documentation/ABI/testing/sysfs-kernel-slab
....@@ -346,6 +346,7 @@
346346 		number of objects per slab.  If a slab cannot be allocated
347347 		because of fragmentation, SLUB will retry with the minimum order
348348 		possible depending on its characteristics.
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+
349350 		When debug_guardpage_minorder=N (N > 0) parameter is specified
350351 		(see Documentation/admin-guide/kernel-parameters.rst), the minimum possible
351352 		order is used and this sysfs entry can not be used to change
....@@ -361,6 +362,7 @@
361362 		new slab has not been possible at the cache's order and instead
362363 		fallen back to its minimum possible order.  It can be written to
363364 		clear the current count.
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+
364366 		Available when CONFIG_SLUB_STATS is enabled.
365367 
366368 What:		/sys/kernel/slab/cache/partial
....@@ -410,6 +412,7 @@
410412 		slab from a remote node as opposed to allocating a new slab on
411413 		the local node.  This reduces the amount of wasted memory over
412414 		the entire system but can be expensive.
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+
413416 		Available when CONFIG_NUMA is enabled.
414417 
415418 What:		/sys/kernel/slab/cache/sanity_checks
....@@ -429,10 +432,15 @@
429432 Contact:	Pekka Enberg <penberg@cs.helsinki.fi>,
430433 		Christoph Lameter <cl@linux-foundation.org>
431434 Description:
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-		The shrink file is written when memory should be reclaimed from
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-		a cache.  Empty partial slabs are freed and the partial list is
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-		sorted so the slabs with the fewest available objects are used
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-		first.
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+		The shrink file is used to reclaim unused slab cache
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+		memory from a cache.  Empty per-cpu or partial slabs
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+		are freed and the partial list is sorted so the slabs
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+		with the fewest available objects are used first.
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+		It only accepts a value of "1" on write for shrinking
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+		the cache. Other input values are considered invalid.
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+		Shrinking slab caches might be expensive and can
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+		adversely impact other running applications.  So it
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+		should be used with care.
436444 
437445 What:		/sys/kernel/slab/cache/slab_size
438446 Date:		May 2007