compaction.c (a108772d03d8bdb43258218b00bfe43bbe1e8800) compaction.c (c7e0b3d088717d148707cd6fcb12f97c6fd961c1)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/mm/compaction.c
4 *
5 * Memory compaction for the reduction of external fragmentation. Note that
6 * this heavily depends upon page migration to do all the real heavy
7 * lifting
8 *

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1722 ISOLATE_NONE, /* No pages isolated, continue scanning */
1723 ISOLATE_SUCCESS, /* Pages isolated, migrate */
1724} isolate_migrate_t;
1725
1726/*
1727 * Allow userspace to control policy on scanning the unevictable LRU for
1728 * compactable pages.
1729 */
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/mm/compaction.c
4 *
5 * Memory compaction for the reduction of external fragmentation. Note that
6 * this heavily depends upon page migration to do all the real heavy
7 * lifting
8 *

--- 1713 unchanged lines hidden (view full) ---

1722 ISOLATE_NONE, /* No pages isolated, continue scanning */
1723 ISOLATE_SUCCESS, /* Pages isolated, migrate */
1724} isolate_migrate_t;
1725
1726/*
1727 * Allow userspace to control policy on scanning the unevictable LRU for
1728 * compactable pages.
1729 */
1730#ifdef CONFIG_PREEMPT_RT
1731int sysctl_compact_unevictable_allowed __read_mostly = 0;
1732#else
1733int sysctl_compact_unevictable_allowed __read_mostly = 1;
1734#endif
1730int sysctl_compact_unevictable_allowed __read_mostly = CONFIG_COMPACT_UNEVICTABLE_DEFAULT;
1735
1736static inline void
1737update_fast_start_pfn(struct compact_control *cc, unsigned long pfn)
1738{
1739 if (cc->fast_start_pfn == ULONG_MAX)
1740 return;
1741
1742 if (!cc->fast_start_pfn)

--- 1328 unchanged lines hidden --- 		1731
1732static inline void
1733update_fast_start_pfn(struct compact_control *cc, unsigned long pfn)
1734{
1735 if (cc->fast_start_pfn == ULONG_MAX)
1736 return;
1737
1738 if (!cc->fast_start_pfn)

--- 1328 unchanged lines hidden ---