300 lines
8.5 KiB
C
300 lines
8.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/node.h>
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#include <linux/mmzone.h>
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#include <linux/compaction.h>
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/*
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* The order of these masks is important. Matching masks will be seen
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* first and the left over flags will end up showing by themselves.
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*
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* For example, if we have GFP_KERNEL before GFP_USER we wil get:
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*
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* GFP_KERNEL|GFP_HARDWALL
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*
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* Thus most bits set go first.
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*/
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#define gfpflag_string(flag) {(__force unsigned long)flag, #flag}
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#define __def_gfpflag_names \
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gfpflag_string(GFP_TRANSHUGE), \
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gfpflag_string(GFP_TRANSHUGE_LIGHT), \
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gfpflag_string(GFP_HIGHUSER_MOVABLE), \
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gfpflag_string(GFP_HIGHUSER), \
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gfpflag_string(GFP_USER), \
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gfpflag_string(GFP_KERNEL_ACCOUNT), \
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gfpflag_string(GFP_KERNEL), \
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gfpflag_string(GFP_NOFS), \
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gfpflag_string(GFP_ATOMIC), \
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gfpflag_string(GFP_NOIO), \
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gfpflag_string(GFP_NOWAIT), \
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gfpflag_string(GFP_DMA), \
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gfpflag_string(__GFP_HIGHMEM), \
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gfpflag_string(GFP_DMA32), \
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gfpflag_string(__GFP_HIGH), \
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gfpflag_string(__GFP_IO), \
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gfpflag_string(__GFP_FS), \
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gfpflag_string(__GFP_NOWARN), \
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gfpflag_string(__GFP_RETRY_MAYFAIL), \
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gfpflag_string(__GFP_NOFAIL), \
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gfpflag_string(__GFP_NORETRY), \
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gfpflag_string(__GFP_COMP), \
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gfpflag_string(__GFP_ZERO), \
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gfpflag_string(__GFP_NOMEMALLOC), \
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gfpflag_string(__GFP_MEMALLOC), \
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gfpflag_string(__GFP_HARDWALL), \
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gfpflag_string(__GFP_THISNODE), \
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gfpflag_string(__GFP_RECLAIMABLE), \
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gfpflag_string(__GFP_MOVABLE), \
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gfpflag_string(__GFP_ACCOUNT), \
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gfpflag_string(__GFP_WRITE), \
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gfpflag_string(__GFP_RECLAIM), \
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gfpflag_string(__GFP_DIRECT_RECLAIM), \
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gfpflag_string(__GFP_KSWAPD_RECLAIM), \
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gfpflag_string(__GFP_ZEROTAGS)
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#ifdef CONFIG_KASAN_HW_TAGS
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#define __def_gfpflag_names_kasan , \
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gfpflag_string(__GFP_SKIP_ZERO), \
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gfpflag_string(__GFP_SKIP_KASAN)
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#else
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#define __def_gfpflag_names_kasan
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#endif
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#define show_gfp_flags(flags) \
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(flags) ? __print_flags(flags, "|", \
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__def_gfpflag_names __def_gfpflag_names_kasan \
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) : "none"
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#ifdef CONFIG_MMU
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#define IF_HAVE_PG_MLOCK(_name) ,{1UL << PG_##_name, __stringify(_name)}
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#else
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#define IF_HAVE_PG_MLOCK(_name)
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#endif
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#ifdef CONFIG_ARCH_USES_PG_UNCACHED
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#define IF_HAVE_PG_UNCACHED(_name) ,{1UL << PG_##_name, __stringify(_name)}
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#else
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#define IF_HAVE_PG_UNCACHED(_name)
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#endif
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#ifdef CONFIG_MEMORY_FAILURE
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#define IF_HAVE_PG_HWPOISON(_name) ,{1UL << PG_##_name, __stringify(_name)}
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#else
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#define IF_HAVE_PG_HWPOISON(_name)
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#endif
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#if defined(CONFIG_PAGE_IDLE_FLAG) && defined(CONFIG_64BIT)
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#define IF_HAVE_PG_IDLE(_name) ,{1UL << PG_##_name, __stringify(_name)}
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#else
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#define IF_HAVE_PG_IDLE(_name)
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#endif
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#ifdef CONFIG_ARCH_USES_PG_ARCH_X
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#define IF_HAVE_PG_ARCH_X(_name) ,{1UL << PG_##_name, __stringify(_name)}
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#else
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#define IF_HAVE_PG_ARCH_X(_name)
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#endif
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#define DEF_PAGEFLAG_NAME(_name) { 1UL << PG_##_name, __stringify(_name) }
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#define __def_pageflag_names \
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DEF_PAGEFLAG_NAME(locked), \
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DEF_PAGEFLAG_NAME(waiters), \
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DEF_PAGEFLAG_NAME(error), \
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DEF_PAGEFLAG_NAME(referenced), \
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DEF_PAGEFLAG_NAME(uptodate), \
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DEF_PAGEFLAG_NAME(dirty), \
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DEF_PAGEFLAG_NAME(lru), \
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DEF_PAGEFLAG_NAME(active), \
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DEF_PAGEFLAG_NAME(workingset), \
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DEF_PAGEFLAG_NAME(slab), \
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DEF_PAGEFLAG_NAME(owner_priv_1), \
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DEF_PAGEFLAG_NAME(arch_1), \
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DEF_PAGEFLAG_NAME(reserved), \
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DEF_PAGEFLAG_NAME(private), \
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DEF_PAGEFLAG_NAME(private_2), \
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DEF_PAGEFLAG_NAME(writeback), \
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DEF_PAGEFLAG_NAME(head), \
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DEF_PAGEFLAG_NAME(mappedtodisk), \
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DEF_PAGEFLAG_NAME(reclaim), \
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DEF_PAGEFLAG_NAME(swapbacked), \
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DEF_PAGEFLAG_NAME(unevictable) \
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IF_HAVE_PG_MLOCK(mlocked) \
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IF_HAVE_PG_UNCACHED(uncached) \
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IF_HAVE_PG_HWPOISON(hwpoison) \
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IF_HAVE_PG_IDLE(idle) \
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IF_HAVE_PG_IDLE(young) \
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IF_HAVE_PG_ARCH_X(arch_2) \
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IF_HAVE_PG_ARCH_X(arch_3)
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#define show_page_flags(flags) \
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(flags) ? __print_flags(flags, "|", \
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__def_pageflag_names \
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) : "none"
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#define DEF_PAGETYPE_NAME(_name) { PG_##_name, __stringify(_name) }
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#define __def_pagetype_names \
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DEF_PAGETYPE_NAME(offline), \
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DEF_PAGETYPE_NAME(guard), \
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DEF_PAGETYPE_NAME(table), \
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DEF_PAGETYPE_NAME(buddy)
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#if defined(CONFIG_X86)
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#define __VM_ARCH_SPECIFIC_1 {VM_PAT, "pat" }
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#elif defined(CONFIG_PPC)
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#define __VM_ARCH_SPECIFIC_1 {VM_SAO, "sao" }
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#elif defined(CONFIG_PARISC) || defined(CONFIG_IA64)
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#define __VM_ARCH_SPECIFIC_1 {VM_GROWSUP, "growsup" }
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#elif !defined(CONFIG_MMU)
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#define __VM_ARCH_SPECIFIC_1 {VM_MAPPED_COPY,"mappedcopy" }
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#else
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#define __VM_ARCH_SPECIFIC_1 {VM_ARCH_1, "arch_1" }
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#endif
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#ifdef CONFIG_MEM_SOFT_DIRTY
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#define IF_HAVE_VM_SOFTDIRTY(flag,name) {flag, name },
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#else
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#define IF_HAVE_VM_SOFTDIRTY(flag,name)
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#endif
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#ifdef CONFIG_HAVE_ARCH_USERFAULTFD_MINOR
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# define IF_HAVE_UFFD_MINOR(flag, name) {flag, name},
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#else
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# define IF_HAVE_UFFD_MINOR(flag, name)
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#endif
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#define __def_vmaflag_names \
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{VM_READ, "read" }, \
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{VM_WRITE, "write" }, \
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{VM_EXEC, "exec" }, \
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{VM_SHARED, "shared" }, \
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{VM_MAYREAD, "mayread" }, \
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{VM_MAYWRITE, "maywrite" }, \
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{VM_MAYEXEC, "mayexec" }, \
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{VM_MAYSHARE, "mayshare" }, \
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{VM_GROWSDOWN, "growsdown" }, \
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{VM_UFFD_MISSING, "uffd_missing" }, \
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IF_HAVE_UFFD_MINOR(VM_UFFD_MINOR, "uffd_minor" ) \
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{VM_PFNMAP, "pfnmap" }, \
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{VM_UFFD_WP, "uffd_wp" }, \
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{VM_LOCKED, "locked" }, \
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{VM_IO, "io" }, \
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{VM_SEQ_READ, "seqread" }, \
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{VM_RAND_READ, "randread" }, \
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{VM_DONTCOPY, "dontcopy" }, \
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{VM_DONTEXPAND, "dontexpand" }, \
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{VM_LOCKONFAULT, "lockonfault" }, \
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{VM_ACCOUNT, "account" }, \
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{VM_NORESERVE, "noreserve" }, \
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{VM_HUGETLB, "hugetlb" }, \
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{VM_SYNC, "sync" }, \
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__VM_ARCH_SPECIFIC_1 , \
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{VM_WIPEONFORK, "wipeonfork" }, \
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{VM_DONTDUMP, "dontdump" }, \
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IF_HAVE_VM_SOFTDIRTY(VM_SOFTDIRTY, "softdirty" ) \
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{VM_MIXEDMAP, "mixedmap" }, \
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{VM_HUGEPAGE, "hugepage" }, \
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{VM_NOHUGEPAGE, "nohugepage" }, \
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{VM_MERGEABLE, "mergeable" } \
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#define show_vma_flags(flags) \
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(flags) ? __print_flags(flags, "|", \
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__def_vmaflag_names \
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) : "none"
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#ifdef CONFIG_COMPACTION
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#define COMPACTION_STATUS \
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EM( COMPACT_SKIPPED, "skipped") \
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EM( COMPACT_DEFERRED, "deferred") \
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EM( COMPACT_CONTINUE, "continue") \
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EM( COMPACT_SUCCESS, "success") \
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EM( COMPACT_PARTIAL_SKIPPED, "partial_skipped") \
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EM( COMPACT_COMPLETE, "complete") \
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EM( COMPACT_NO_SUITABLE_PAGE, "no_suitable_page") \
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EM( COMPACT_NOT_SUITABLE_ZONE, "not_suitable_zone") \
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EMe(COMPACT_CONTENDED, "contended")
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/* High-level compaction status feedback */
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#define COMPACTION_FAILED 1
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#define COMPACTION_WITHDRAWN 2
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#define COMPACTION_PROGRESS 3
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#define compact_result_to_feedback(result) \
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({ \
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enum compact_result __result = result; \
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(__result == COMPACT_COMPLETE) ? COMPACTION_FAILED : \
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(__result == COMPACT_SUCCESS) ? COMPACTION_PROGRESS : COMPACTION_WITHDRAWN; \
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})
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#define COMPACTION_FEEDBACK \
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EM(COMPACTION_FAILED, "failed") \
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EM(COMPACTION_WITHDRAWN, "withdrawn") \
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EMe(COMPACTION_PROGRESS, "progress")
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#define COMPACTION_PRIORITY \
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EM(COMPACT_PRIO_SYNC_FULL, "COMPACT_PRIO_SYNC_FULL") \
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EM(COMPACT_PRIO_SYNC_LIGHT, "COMPACT_PRIO_SYNC_LIGHT") \
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EMe(COMPACT_PRIO_ASYNC, "COMPACT_PRIO_ASYNC")
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#else
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#define COMPACTION_STATUS
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#define COMPACTION_PRIORITY
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#define COMPACTION_FEEDBACK
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#endif
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#ifdef CONFIG_ZONE_DMA
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#define IFDEF_ZONE_DMA(X) X
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#else
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#define IFDEF_ZONE_DMA(X)
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#endif
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#ifdef CONFIG_ZONE_DMA32
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#define IFDEF_ZONE_DMA32(X) X
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#else
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#define IFDEF_ZONE_DMA32(X)
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#endif
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#ifdef CONFIG_HIGHMEM
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#define IFDEF_ZONE_HIGHMEM(X) X
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#else
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#define IFDEF_ZONE_HIGHMEM(X)
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#endif
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#define ZONE_TYPE \
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IFDEF_ZONE_DMA( EM (ZONE_DMA, "DMA")) \
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IFDEF_ZONE_DMA32( EM (ZONE_DMA32, "DMA32")) \
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EM (ZONE_NORMAL, "Normal") \
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IFDEF_ZONE_HIGHMEM( EM (ZONE_HIGHMEM,"HighMem")) \
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EMe(ZONE_MOVABLE,"Movable")
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#define LRU_NAMES \
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EM (LRU_INACTIVE_ANON, "inactive_anon") \
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EM (LRU_ACTIVE_ANON, "active_anon") \
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EM (LRU_INACTIVE_FILE, "inactive_file") \
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EM (LRU_ACTIVE_FILE, "active_file") \
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EMe(LRU_UNEVICTABLE, "unevictable")
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/*
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* First define the enums in the above macros to be exported to userspace
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* via TRACE_DEFINE_ENUM().
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*/
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#undef EM
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#undef EMe
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#define EM(a, b) TRACE_DEFINE_ENUM(a);
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#define EMe(a, b) TRACE_DEFINE_ENUM(a);
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COMPACTION_STATUS
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COMPACTION_PRIORITY
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/* COMPACTION_FEEDBACK are defines not enums. Not needed here. */
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ZONE_TYPE
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LRU_NAMES
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/*
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* Now redefine the EM() and EMe() macros to map the enums to the strings
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* that will be printed in the output.
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*/
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#undef EM
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#undef EMe
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#define EM(a, b) {a, b},
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#define EMe(a, b) {a, b}
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