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mm/compaction: Get rid of RT ifdeffery

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Move the RT dependency for the initial value of
sysctl_compact_unevictable_allowed into Kconfig.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220825164131.402717-7-bigeasy@linutronix.de
This commit is contained in:
Thomas Gleixner 2022-08-25 18:41:29 +02:00
parent e575d40158
commit c7e0b3d088
2 changed files with 7 additions and 5 deletions
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6
mm/Kconfig
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@ -579,6 +579,12 @@ config COMPACTION
it and then we would be really interested to hear about that at
linux-mm@kvack.org.
config COMPACT_UNEVICTABLE_DEFAULT
int
depends on COMPACTION
default 0 if PREEMPT_RT
default 1
#
# support for free page reporting
config PAGE_REPORTING

6
mm/compaction.c
View File

@ -1727,11 +1727,7 @@ typedef enum {
* Allow userspace to control policy on scanning the unevictable LRU for
* compactable pages.
*/
#ifdef CONFIG_PREEMPT_RT
int sysctl_compact_unevictable_allowed __read_mostly = 0;
#else
int sysctl_compact_unevictable_allowed __read_mostly = 1;
#endif
int sysctl_compact_unevictable_allowed __read_mostly = CONFIG_COMPACT_UNEVICTABLE_DEFAULT;
static inline void
update_fast_start_pfn(struct compact_control *cc, unsigned long pfn)