diff options
| author | Vlastimil Babka <vbabka@suse.cz> | 2023-03-29 10:48:39 +0200 |
|---|---|---|
| committer | Vlastimil Babka <vbabka@suse.cz> | 2023-03-29 10:48:39 +0200 |
| commit | ed4cdfbeb8735c36a2e31009866dfc2dfa26db3f (patch) | |
| tree | 714a066c2656d0cadfba415a2cf7ebb5e9b84afe /mm/Kconfig | |
| parent | 8f0293bf7aeb9339f724e306e7a0a741f633c738 (diff) | |
| parent | ae65a5211d90e54ae604012ce9cf234c48780929 (diff) | |
Merge branch 'slab/for-6.4/slob-removal' into slab/for-next
A series by myself to remove CONFIG_SLOB:
The SLOB allocator was deprecated in 6.2 and there have been no
complaints so far so let's proceed with the removal.
Besides the code cleanup, the main immediate benefit will be allowing
kfree() family of function to work on kmem_cache_alloc() objects, which
was incompatible with SLOB. This includes kfree_rcu() which had no
kmem_cache_free_rcu() counterpart yet and now it shouldn't be necessary
anymore.
Otherwise it's all straightforward removal. After this series, 'git grep
slob' or 'git grep SLOB' will have 3 remaining relevant hits in non-mm
code:
- tomoyo - patch submitted and carried there, doesn't need to wait for
this series
- skbuff - patch to cleanup now-unnecessary #ifdefs will be posted to
netdev after this is merged, as requested to avoid conflicts
- ftrace ring_buffer - patch to remove obsolete comment is carried there
The rest of 'git grep SLOB' hits are false positives, or intentional
(CREDITS, and mm/Kconfig SLUB_TINY description to help those that will
happen to migrate later).
Diffstat (limited to 'mm/Kconfig')
| -rw-r--r-- | mm/Kconfig | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/mm/Kconfig b/mm/Kconfig index 4751031f3f05..669399ab693c 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -238,30 +238,8 @@ config SLUB and has enhanced diagnostics. SLUB is the default choice for a slab allocator. -config SLOB_DEPRECATED - depends on EXPERT - bool "SLOB (Simple Allocator - DEPRECATED)" - depends on !PREEMPT_RT - help - Deprecated and scheduled for removal in a few cycles. SLUB - recommended as replacement. CONFIG_SLUB_TINY can be considered - on systems with 16MB or less RAM. - - If you need SLOB to stay, please contact linux-mm@kvack.org and - people listed in the SLAB ALLOCATOR section of MAINTAINERS file, - with your use case. - - SLOB replaces the stock allocator with a drastically simpler - allocator. SLOB is generally more space efficient but - does not perform as well on large systems. - endchoice -config SLOB - bool - default y - depends on SLOB_DEPRECATED - config SLUB_TINY bool "Configure SLUB for minimal memory footprint" depends on SLUB && EXPERT |