github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-09-24 06:24:02 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

docs: ABI: sysfs-kernel-slab: mark cpu_partial attributes deprecated

Browse Source 
The per-cpu slab and per-cpu partial slab mechanisms were removed when
SLUB was fully converted to per-cpu sheaves in Linux 7.0. The cpu_slabs,
slabs_cpu_partial and cpu_partial sysfs attributes were kept as stubs
that always return 0 for backwards compatibility, but their
documentation still described them as if they were functional.

Update the three descriptions to state that the attributes are
deprecated and always read 0, and note that they are retained only for
compatibility. While here, fix a "partialli" typo in the
slabs_cpu_partial description.

Signed-off-by: Seongjun Hong <hsj0512@snu.ac.kr>
Acked-by: Harry Yoo (Oracle) <harry@kernel.org>
Link: https://patch.msgid.link/20260701141755.85119-1-hsj0512@snu.ac.kr
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
This commit is contained in:
Seongjun Hong 2026-07-01 14:17:46 +00:00 committed by Vlastimil Babka (SUSE)
parent 0125c78324
commit bfec5d0b39
1 changed files with 12 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
Documentation/ABI/testing/sysfs-kernel-slab
View File

@ -113,8 +113,10 @@ KernelVersion: 2.6.22
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@gentwo.org>
Description:
The cpu_slabs file is read-only and displays how many cpu slabs
are active and their NUMA locality.
The cpu_slabs file is read-only. It is deprecated and always
reads "0" since the removal of per-cpu slabs in Linux 7.0. It
previously displayed how many cpu slabs were active and their
NUMA locality. The file is kept for backwards compatibility.
What: /sys/kernel/slab/<cache>/cpuslab_flush
Date: April 2009
@ -509,12 +511,16 @@ What: /sys/kernel/slab/<cache>/slabs_cpu_partial
Date: Aug 2011
Contact: Christoph Lameter <cl@gentwo.org>
Description:
This read-only file shows the number of partialli allocated
frozen slabs.
This read-only file is deprecated and always reads "0(0)" since
the removal of per-cpu partial slabs in Linux 7.0. It previously
showed the number of partially allocated frozen slabs. The file
is kept for backwards compatibility.
What: /sys/kernel/slab/<cache>/cpu_partial
Date: Aug 2011
Contact: Christoph Lameter <cl@gentwo.org>
Description:
This read-only file shows the number of per cpu partial
pages to keep around.
This file is deprecated and always reads "0" since the removal of
per-cpu partial slabs in Linux 7.0. It previously showed the
number of per-cpu partial pages to keep around. The file is kept
for backwards compatibility.